PCBA (printed circuit board assembly) three-proofing glue automatic dispensing equipment

Abstract

The utility model discloses PCBA (printed circuit board assembly) three-proofing glue automatic dispensing equipment which comprises a bottom plate, a displacement mechanism is arranged on the bottom plate, the displacement mechanism comprises a translation mechanism and a rotating mechanism, the translation mechanism comprises a transverse displacement mechanism, a longitudinal displacement mechanism and a vertical displacement mechanism, and the rotating mechanism is arranged on the bottom plate. The transverse displacement mechanism is used for controlling the glue gun to move along the X axis, the longitudinal displacement mechanism is used for controlling the glue gun to move along the Y axis, the vertical displacement mechanism is used for controlling the glue gun to move along the Z axis, and the rotating mechanism is used for controlling the glue gun to rotate. Movement is achieved through the screw rod mechanism, it is guaranteed that the whole structure can keep linear movement when moving along the X axis, the Y axis and the Z axis through the guide mechanism of the sliding block guide rail and the guide column, and the angle of the glue gun is adjusted by adjusting the relative position of the bolt and the adjusting plate through cooperation of the adjusting plate and the installation block.

Description

Technical Field

[0001] The utility model relates to an automatic dispensing device for PCBA triple-proof glue. Background Art

[0002] PCBA triple-proofing technology involves applying a specially formulated coating to the PCB and component pins to improve the product's environmental adaptability. The primary purpose is to prevent damage and failure of the PCBA due to adverse environmental factors such as humidity, corrosion, and contamination.

[0003] With the continuous development of industrial automation technology, the application of glue dispensing machines is becoming increasingly widespread. Glue dispensing has become an indispensable manufacturing technology in fields such as electronic equipment, automotive parts, and medical devices. Traditional conformal adhesive coating processes generally rely on manual brushing and spraying. These manual processes are inefficient, with inconsistent glue thickness, difficulty in accurately applying glue to the intended area, unstable quality, and high labor costs, making them unable to meet the requirements of mass production operations. Utility Model Content

[0004] The purpose of the utility model is to solve the deficiencies of the above-mentioned prior art and provide an automatic dispensing device for PCBA triple-proof glue.

[0005] A PCBA triple-proof glue automated dispensing device includes a base plate, on which a displacement mechanism is provided. The displacement mechanism includes a translation mechanism and a rotation mechanism. The translation mechanism includes a lateral displacement mechanism, a longitudinal displacement mechanism, and a vertical displacement mechanism. The lateral displacement mechanism is used to control the movement of the glue gun along the X-axis, the longitudinal displacement mechanism is used to control the movement of the glue gun along the Y-axis, the vertical displacement mechanism is used to control the movement of the glue gun along the Z-axis, and the rotation mechanism is used to control the rotation of the glue gun.

[0006] Preferably, the longitudinal displacement mechanism includes a servo motor, a screw, a first connecting block, a guide rail, and a slider. The output end of the servo motor is connected to one end of the screw. The first connecting block is threadedly connected to the screw. A slider is provided below the first connecting block, and the slider cooperates with the guide rail slide.

[0007] Preferably, both ends of the screw are respectively inserted into the bearings in the bearing seat, the output end of the servo motor is connected to one end of the screw through a coupling, and the servo motor is installed on the motor fixing plate.

[0008] Preferably, both ends of the screw are respectively provided with limiting sleeves, and the limiting sleeves are used to limit the stroke of the first connecting block.

[0009] Preferably, the lateral displacement mechanism has the same structure as the longitudinal displacement mechanism.

[0010] Preferably, the longitudinal displacement mechanism includes two sets of guide rails and sliders, and the two sets of sliders and guide rails are arranged in parallel and opposite to each other. The upper end surfaces of the two sliders are fixedly connected to the two ends of the lower end surface of the connecting plate respectively. The transverse displacement structure is installed on the upper end surface of the connecting plate, and the first connecting block is fixedly installed on the connecting plate.

[0011] Preferably, the vertical displacement mechanism includes a screw, a guide column, a bearing seat, a mounting seat, a servo motor, and a second connecting block. The mounting seat is a right-angle bent plate, and the outer side surface of its vertical section is connected to the first connecting block of the lateral displacement mechanism. Two parallel and opposite bearing seats are provided on the inner side surface of the vertical section. The screw is passed through the bearing in the bearing seat. The second connecting block is threadedly connected to the screw. The servo motor is installed on the outer side surface of the straight section of the mounting seat, and its output end is connected to one end of the screw through a coupling. A guide column is provided on each side of the screw, and the two ends of the guide column are respectively inserted into the bearing seat. The guide column is movably passed through the second connecting block, and the second connecting block is connected to the rotating mechanism. A photoelectric sensor sheet is provided on the second connecting block, and a photoelectric sensor is provided on the mounting seat.

[0012] Preferably, the second connecting block is a "Z"-shaped bent plate, which includes a first straight section, a second straight section, and a vertical section. The surface of the first straight section is provided with three through holes, and the three through holes are used for the screw and the guide column to pass through respectively. A connecting sleeve is provided between the through holes of the first straight section and the screw and the guide column. The connecting sleeve includes a flat plate and a sleeve column. The sleeve column is fixed to the surface of the flat plate. The bottom surface of the sleeve column is provided with a through hole, and the through hole is used for the guide column or the screw to pass through. The first straight section of the second connecting block is sleeved on the outer wall of the sleeve column through the through holes on its surface, and the first straight section and the flat plate are fixedly connected by bolts.

[0013] Preferably, the rotating mechanism includes a servo motor, which is mounted on a fixed seat located on the second straight section. The output end of the servo motor is connected to the mounting block via a coupling, and the mounting block is connected to the glue gun via an adjusting mechanism.

[0014] Preferably, the adjustment mechanism includes an adjustment plate and a connecting seat, the surface of the adjustment plate is provided with an arc-shaped slot, and the adjustment plate is connected to the mounting block by bolts passing through the slot;

[0015] The connecting seat is an "L"-shaped bent plate, the surface of its vertical section is fixed to the adjustment plate by bolts, the surface of its straight section is provided with a mounting hole for inserting a glue gun, the surface of the straight section is provided with a notch running through its upper and lower end faces, the notch is connected to the mounting hole, and connecting ears are provided on both sides of the notch, which are connected by bolts.

[0016] Beneficial effects: Compared with the prior art, the utility model realizes the position adjustment of the glue gun through the displacement mechanism, realizes the movement through the screw mechanism, and ensures that the overall structure can maintain linear motion when moving along the X, Y, and Z axes through the guide mechanism of the slider guide rail and the guide column. By cooperating with the adjustment plate and the mounting block, the relative position of the adjustment bolt and the adjustment plate is adjusted to adjust the angle of the glue gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of an automated dispensing device for PCBA conformal adhesive.

[0018] Figure 2 is a schematic diagram of the displacement mechanism;

[0019] Figure 3 is a schematic diagram of the vertical displacement mechanism;

[0020] Figure 4 This is the assembly diagram of the glue gun, adjustment plate, and connecting seat;

[0021] In the figure, 1. base, 2. bottom plate, 3. longitudinal displacement mechanism, 4. lateral displacement mechanism, 5. vertical displacement mechanism, 6. first connecting block, 7. column, 8. mounting plate, 9. connecting plate, 10. servo motor, 11. coupling, 12. bearing seat, 13. limit sleeve, 14. screw, 15. mounting seat, 16. guide column, 17. photoelectric sensor, 18. photoelectric sensor sheet, 19. connecting sleeve, 20. second connecting block, 21. mounting block, 22. adjustment plate, 23. glue gun, 24. connecting seat. DETAILED DESCRIPTION

[0022] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0023] like Figure 1-4 As shown, base 1, bottom plate 2, longitudinal displacement mechanism 3, lateral displacement mechanism 4, vertical displacement mechanism 5, first connecting block 6, column 7, mounting plate 8, connecting plate 9, servo motor 10, coupling 11, bearing seat 12, limit sleeve 13, screw 14, mounting seat 15, guide column 16, photoelectric sensor 17, photoelectric sensor sheet 18, connecting sleeve 19, second connecting block 20, mounting block 21, adjustment plate 22, glue gun 23, connecting seat 24;

[0024] A PCBA three-proof glue automated dispensing equipment includes a base plate 2, on which a displacement mechanism is provided. The displacement mechanism includes a translation mechanism and a rotation mechanism. The translation mechanism includes a lateral displacement mechanism 4, a longitudinal displacement mechanism 3, and a vertical displacement mechanism 5. The lateral displacement mechanism 4 is used to control the glue gun 23 to move along the X-axis, the longitudinal displacement mechanism 3 is used to control the glue gun 23 to move along the Y-axis, the vertical displacement mechanism 5 is used to control the glue gun 23 to move along the Z-axis, and the rotation mechanism is used to control the rotation of the glue gun 23.

[0025] In this embodiment, the longitudinal displacement mechanism 3 includes a servo motor 10, a screw 14, a first connecting block 6, a guide rail, and a slider. The output end of the servo motor 10 is connected to one end of the screw 14. The first connecting block 6 is threadedly connected to the screw 14. A slider is provided under the first connecting block 6, and the slider cooperates with the guide rail slide.

[0026] In this embodiment, both ends of the screw 14 are respectively inserted into the bearings in the bearing seat 12, the output end of the servo motor 10 is connected to one end of the screw 14 through the coupling 11, and the servo motor 10 is installed on the motor fixing plate.

[0027] In this embodiment, limiting sleeves 13 are respectively provided on both ends of the screw rod 14 , and the limiting sleeves 13 are used to limit the stroke of the first connecting block 6 .

[0028] In this embodiment, the transverse displacement mechanism 4 and the longitudinal displacement mechanism 3 have the same structure.

[0029] In this embodiment, the longitudinal displacement mechanism 3 includes two sets of guide rails and sliders. The two sets of sliders and guide rails are arranged in parallel and opposite to each other. The upper end surfaces of the two sliders are fixedly connected to the two ends of the lower end surface of the connecting plate 9 respectively. The transverse displacement structure is installed on the upper end surface of the connecting plate 9, and the first connecting block 6 is fixedly installed on the connecting plate 9.

[0030] In this embodiment, the vertical displacement mechanism 5 includes a screw 14, a guide column 16, a bearing seat 12, a mounting seat 15, a servo motor 10, and a second connecting block 20. The mounting seat 15 is a right-angle bent plate, and the outer side surface of its vertical section is connected to the first connecting block 6 of the lateral displacement mechanism 4. Two parallel and opposite bearing seats 12 are provided on the inner side surface of the vertical section. The screw 14 is inserted into the bearing in the bearing seat 12, and the second connecting block 20 is threadedly connected to the screw 14. The servo motor 10 is installed on the outer side surface of the straight section of the mounting seat 15, and its output end is connected to one end of the screw 14 through a coupling 11. A guide column 16 is provided on each side of the screw 14, and the two ends of the guide column 16 are respectively inserted into the bearing seat 12. The guide column 16 is movably inserted into the second connecting block 20, and the second connecting block 20 is connected to the rotating mechanism. A photoelectric sensor sheet 18 is provided on the second connecting block 20, and a photoelectric sensor 17 is provided on the mounting seat 15.

[0031] In this embodiment, the second connecting block 20 is a "Z"-shaped bent plate, which includes a first straight section, a second straight section, and a vertical section. The surface of the first straight section is provided with three through holes, and the three through holes are used for the screw 14 and the guide column 16 to pass through respectively. A connecting sleeve 19 is provided between the through holes of the first straight section and the screw 14 and the guide column 16. The connecting sleeve 19 includes a flat plate and a sleeve column. The sleeve column is fixed to the surface of the flat plate. The bottom surface of the sleeve column is provided with a through hole, and the through hole is used for the guide column 16 or the screw 14 to pass through. The first straight section of the second connecting block 20 is sleeved on the outer wall of the sleeve column through the through holes on its surface, and the first straight section and the flat plate are fixedly connected by bolts.

[0032] In this embodiment, the rotating mechanism includes a servo motor 10, which is installed on a fixed seat located on the second straight section. The output end of the servo motor 10 is connected to the mounting block 21 through a coupling 11, and the mounting block 21 is connected to the glue gun 23 through an adjustment mechanism.

[0033] In this embodiment, the adjustment mechanism includes an adjustment plate 22 and a connecting seat 24. The surface of the adjustment plate 22 is provided with an arc-shaped slot, and the adjustment plate 22 is connected to the mounting block 21 by bolts passing through the slot.

[0034] The connecting seat 24 is an "L"-shaped bent plate, the surface of its vertical section is fixedly connected to the adjustment plate 22 by bolts, and the surface of its straight section is provided with a mounting hole for inserting the glue gun 23. The surface of the straight section is provided with a notch running through its upper and lower end faces, the notch is connected to the mounting hole, and connecting ears are provided on both sides of the notch, which are connected by bolts.

[0035] Working principle: The overall structure includes a base 1, the upper end surface of the base 1 is provided with a bottom plate 2, the upper end surface of the bottom plate 2 is provided with four columns 7, the columns 7 are provided with two parallel and opposite mounting plates 8, the two mounting plates 8 are provided with sliding guide rails and sliders, the upper end surfaces of the two sliders are fixedly connected to the lower end surface of the connecting plate 9, and the upper end surface of the connecting plate 9 is provided with another set of sliders and guide rails;

[0036] A screw 14 mechanism is provided on one of the mounting plates 8 and the connecting plate 9. The screw 14 mechanism on the mounting plate 8 drives the slider on the mounting plate 8 to move, the slider drives the connecting plate 9 to move, the screw 14 mechanism on the connecting plate 9 drives the slider to move, and the slider drives the mounting seat 15 to move. The mounting seat 15 is also provided with a screw 14 mechanism. The screw 14 mechanism drives the connecting block to move, and the second connecting block 20 drives the fixed seat to move, so that the glue gun 23 connected to the rotating mechanism moves, and the glue gun 23 is moved along the X, Y, and Z axes. The glue gun 23 is rotated by the rotating mechanism, and the angle of the glue gun 23 is adjusted by the adjusting plate 22 and the mounting block 21.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A PCBA three-proof glue automatic dispensing equipment, characterized by: It includes a base plate, on which a displacement mechanism is provided. The displacement mechanism includes a translation mechanism and a rotation mechanism. The translation mechanism includes a lateral displacement mechanism, a longitudinal displacement mechanism, and a vertical displacement mechanism. The lateral displacement mechanism is used to control the glue gun to move along the X-axis, the longitudinal displacement mechanism is used to control the glue gun to move along the Y-axis, the vertical displacement mechanism is used to control the glue gun to move along the Z-axis, and the rotation mechanism is used to control the rotation of the glue gun.

2. The PCBA three-proof glue automatic dispensing equipment according to claim 1 is characterized in that: The longitudinal displacement mechanism includes a servo motor, a screw, a first connecting block, a guide rail, and a slider. The output end of the servo motor is connected to one end of the screw, the first connecting block is threadedly connected to the screw, and a slider is provided below the first connecting block, which cooperates with the guide rail slide.

3. The PCBA three-proof glue automatic dispensing equipment according to claim 2 is characterized in that: The two ends of the screw are respectively inserted into the bearings in the bearing seat, the output end of the servo motor is connected to one end of the screw through a coupling, and the servo motor is installed on the motor fixing plate.

4. The PCBA three-proof glue automatic dispensing equipment according to claim 3 is characterized in that: Limit sleeves are respectively provided at both ends of the screw rod, and the limit sleeves are used to limit the stroke of the first connecting block.

5. The PCBA three-proof adhesive automatic dispensing equipment according to claim 4 is characterized in that: The lateral displacement mechanism has the same structure as the longitudinal displacement mechanism.

6. The PCBA three-proof adhesive automatic dispensing equipment according to claim 5, characterized in that: The longitudinal displacement mechanism includes two sets of guide rails and sliders. The two sets of sliders and guide rails are arranged in parallel and opposite to each other. The upper end surfaces of the two sliders are fixedly connected to the two ends of the lower end surface of the connecting plate respectively. The transverse displacement structure is installed on the upper end surface of the connecting plate, and the first connecting block is fixedly installed on the connecting plate.

7. The PCBA three-proof adhesive automatic dispensing equipment according to claim 6, characterized in that: The vertical displacement mechanism includes a screw, a guide column, a bearing seat, a mounting seat, a servo motor, and a second connecting block. The mounting seat is a right-angle bent plate, the outer side surface of its vertical section is connected to the first connecting block of the lateral displacement mechanism, and two parallel and opposite bearing seats are provided on the inner side surface of the vertical section. The screw is passed through the bearing in the bearing seat, and the second connecting block is threadedly connected to the screw. The servo motor is installed on the outer side surface of the straight section of the mounting seat, and its output end is connected to one end of the screw through a coupling. A guide column is provided on each side of the screw, and the two ends of the guide column are respectively inserted into the bearing seat. The guide column is movably passed through the second connecting block, and the second connecting block is connected to the rotating mechanism.

8. The PCBA three-proof adhesive automatic dispensing equipment according to claim 7, characterized in that: The second connecting block is a "Z"-shaped bent plate, which includes a first straight section, a second straight section, and a vertical section. The surface of the first straight section is provided with three through holes, which are respectively used for the screw and the guide column to pass through. A connecting sleeve is provided between the through holes of the first straight section and the screw and the guide column. The connecting sleeve includes a flat plate and a sleeve column. The sleeve column is fixed to the surface of the flat plate. The bottom surface of the sleeve column is provided with a through hole, which is used for the guide column or the screw to pass through. The first straight section of the second connecting block is sleeved on the outer wall of the sleeve column through the through hole on its surface. The first straight section and the flat plate are fixedly connected by bolts. A photoelectric sensor sheet is provided on the second connecting block, and a photoelectric sensor is provided on the mounting seat.

9. The PCBA three-proof adhesive automatic dispensing equipment according to claim 8, characterized in that: The rotating mechanism includes a servo motor, which is installed on a fixing seat located on the second straight section. The output end of the servo motor is connected to the mounting block through a coupling, and the mounting block is connected to the glue gun through an adjusting mechanism.

10. The PCBA three-proof adhesive automatic dispensing equipment according to claim 9, characterized in that: The adjustment mechanism includes an adjustment plate and a connecting seat. The surface of the adjustment plate is provided with an arc-shaped slot, and the adjustment plate is connected to the mounting block by bolts passing through the slot. The connecting seat is an "L"-shaped bent plate, the surface of its vertical section is fixedly connected to the adjustment plate by bolts, the surface of its straight section is provided with a mounting hole for inserting a glue gun, and the surface of the straight section is provided with a notch running through its upper end face and lower end face, the notch is connected to the mounting hole, and connecting ears are provided on both sides of the notch, and the connecting ears are connected by bolts.

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