CN211402114U

CN211402114U - Solder joint detection device based on SMT paster

Info

Publication number: CN211402114U
Application number: CN202021565082.1U
Authority: CN
Inventors: 刘红妮
Original assignee: Guangzhou Tata Electronic Technology Service Co ltd
Current assignee: Shenzhen Efficient Technology Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2020-09-01
Anticipated expiration: 2030-07-31

Abstract

The utility model relates to a SMT paster solder joint detects technical field, especially relates to a solder joint detection device based on SMT paster, including rotary disk, location box, slide rail, ratch, servo motor, drive gear, connecting rod, locating plate, detection platform, fixed plate, guide bar, installation piece, sliding sleeve, rack, walking gear, walking motor and RGB three-colour light source, the top of rotary disk and the bottom fixed connection of location box, both sides respectively with the bottom fixed connection of two slide rails around the location box inner wall bottom, one side of ratch and the free end fixed connection of slide rail. The utility model discloses reached and carried out the centre gripping to the circuit board and freely change the purpose of paster orientation, can make the circuit board that waits to detect more stable when detecting, improve the precision demand that detects, the whole aspect carries out the all-round detection of shining in a certain paster solder joint simultaneously, and then has avoided the phenomenon of detection blind area, has guaranteed the quality of paster solder joint.

Description

Solder joint detection device based on SMT paster

Technical Field

The utility model relates to a SMT paster solder joint detects technical field, especially relates to a solder joint detection device based on SMT paster.

Background

The patch is one of the basic units of modern circuit boards to realize functions. The development trend of the current patch is the precision and miniaturization, and an accurate and efficient detection method of the printed circuit board is needed. The modern PCB detection industry widely adopts RGB three-colour light source to shine the paster, reflects different colors to the soldering tin of different gradients to the soldering tin surface property has been reflected. The image obtained by irradiating the soldering tin by using the RGB three-color light source is used for image recognition, and common defects of the patch, such as missing parts, wrong parts, component offset, tombstone, welding spot defects and the like, can be detected. The user uses the template patch to calculate the threshold value according to the algorithm program, and the detection of the defects of the patch can be realized.

And at present, the solder joint is detected in the mode of irradiating the patch by using the RGB three-color light source, because the circuit board is always in a fixed position and can not be stably placed on the circuit board to be detected, the irradiation state of the RGB three-color light source on the position of the patch is insufficient, the detection can not reach the comprehensive requirement easily, the detection blind area is easy to occur, the detection precision is not accurate enough, and the quality standard of the solder joint of the patch is difficult to ensure.

Disclosure of Invention

Technical problem to be solved

Not enough to prior art, the utility model provides a solder joint detection device based on SMT paster has reached and has carried out the centre gripping to the circuit board and freely change the purpose of paster orientation, can make the circuit board that waits to detect more stable when examining, improves the precision demand that detects, and the full aspect carries out the all-round detection of shining to a certain paster solder joint simultaneously, and then has avoided the phenomenon of detection blind area, has guaranteed the quality of paster solder joint.

(II) technical scheme

In order to realize the technical problem, the utility model provides a following technical scheme: a solder joint detection device based on SMT paster comprises a rotary disk, a positioning box, slide rails, a toothed bar, a servo motor, a driving gear, a connecting rod, a positioning plate, a detection table, a fixing plate, a guide bar, an installation block, a sliding sleeve, a rack, a walking gear, a walking motor and an RGB (red, green and blue) three-color light source, wherein the top of the rotary disk is fixedly connected with the bottom of the positioning box, the front side and the back side of the bottom of the inner wall of the positioning box are respectively fixedly connected with the bottoms of the two slide rails, one side of the toothed bar is fixedly connected with the free ends of the slide rails, the bottom of the servo motor is fixedly connected with the middle position of the bottom of the inner wall of the positioning box, the driving gear is fixedly installed at the output end of the servo motor, the front side and the back side of the outer edge of the driving gear are respectively in meshing transmission connection with, the two positioning plates are respectively positioned at two sides of the top of the positioning box, the positioning plates are connected with the positioning box in a sliding manner, and the bottoms of the positioning plates are fixedly connected with the top end of the connecting rod.

Further, the rotary disk is installed at the top of examining test table, examine and install the drive arrangement that the cooperation rotary disk rotated and used on the test table, it is provided with the cabinet to examine on the test table.

Furthermore, the bottom of the fixed plate is fixedly mounted at the top of the detection table, the fixed plate is located on the left side of the rotating disc, the number of the guide rods is two, one ends of the two guide rods are fixedly connected with the top of the detection table, and the top ends of the guide rods are fixedly connected with the fixed plate.

Furthermore, the number of sliding sleeves is two, and two equal fixed mounting of sliding sleeves are on the installation piece, the sliding sleeve cover is established on the surface of guide bar, sliding sleeve and guide bar sliding connection.

Further, the rack is fixedly installed in the middle of the right side of the fixing plate, the installation block is provided with an installation groove, the walking gear is rotatably installed inside the installation groove, and the walking gear is in meshed transmission connection with the rack.

Furthermore, the walking motor is fixedly installed on the installation block, and the output end of the walking motor is in transmission connection with the walking gear.

Further, RGB three-colour light source passes through support fixed mounting on the right side of installation piece, RGB three-colour light source is located the location box top directly over.

(III) advantageous effects

The utility model provides a solder joint detection device based on SMT paster possesses following beneficial effect:

1. the utility model drives the driving gear to rotate by the operation of the servo motor, the matching driving gear is respectively meshed with the two toothed bars to drive the two toothed bars to synchronously displace in opposite directions, the sliding capacity of the toothed bars matching with the sliding rail keeps linear motion, and the toothed bars can play a supporting role, the toothed bars are matched with the connecting rod to drive the positioning plates to synchronously move while moving, the circuit board to be detected is placed between the two positioning plates, the two positioning plates can be clamped by moving in opposite directions, and the rotating disk is matched to drive the positioning box to rotate, thereby achieving the purposes of clamping the circuit board and freely changing the direction of the paster, enabling the circuit board to be detected to be more stable during detection, improving the requirement of detection precision, and simultaneously carrying out all-dimensional irradiation detection on a certain paster welding spot, thereby avoiding the phenomenon of a detection blind area and ensuring the quality of the welding spot of the surface mount device.

2. The utility model discloses a running drive walking gear of walking motor rotates, the meshing state of cooperation walking gear and rack, combine simultaneously and the sliding capacity of sliding sleeve on the guide bar, consequently, can make whole installation piece position adjustment about going on the fixed plate, it carries out the position adjustment on the height to drive RGB three-colour light source simultaneously, consequently, the interval that can make between RGB three-colour light source and the circuit board changes according to shining the demand, the effect of fully shining of RGB three-colour light source to the paster has been guaranteed, not only can improve the precision that detects, improve the irradiation range of RGB three-colour light source simultaneously, make the paster fully expose under light, thereby improved to lacking the piece, wrong piece, the component skew, found the tablet, the detection accuracy of solder joint defect phenomenon.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a top cross-sectional view of the structural positioning box of the present invention;

fig. 3 is a top view of the structure mounting block of the present invention.

In the figure: 1. rotating the disc; 2. a positioning box; 3. a slide rail; 4. a rack bar; 5. a servo motor; 6. a drive gear; 7. a connecting rod; 8. positioning a plate; 9. a detection table; 10. a fixing plate; 11. a guide bar; 12. mounting blocks; 13. a sliding sleeve; 14. a rack; 15. mounting grooves; 16. a traveling gear; 17. a travel motor; 18. RGB three-color light source.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a welding spot detection device based on SMT paster comprises a rotary disk 1, a positioning box 2, slide rails 3, toothed bars 4, a servo motor 5, a driving gear 6, a connecting rod 7, a positioning plate 8, a detection platform 9, a fixing plate 10, a guide rod 11, an installation block 12, a sliding sleeve 13, a rack 14, a walking gear 16, a walking motor 17 and RGB three-color light sources 18, wherein the top of the rotary disk 1 is fixedly connected with the bottom of the positioning box 2, the front side and the rear side of the bottom of the inner wall of the positioning box 2 are respectively and fixedly connected with the bottoms of the two slide rails 3, one side of each toothed bar 4 is fixedly connected with the free end of each slide rail 3, the bottom of the servo motor 5 is fixedly connected with the middle position of the bottom of the inner wall of the positioning box 2, the driving gear 6 is fixedly installed on the output end of the servo motor 5, the front side and the rear side of the outer edge of the driving gear 6 are, the top end of the connecting rod 7 extends to the top of the positioning box 2, the two positioning plates 8 are respectively positioned at two sides of the top of the positioning box 2, the positioning plates 8 are connected with the positioning box 2 in a sliding manner, the bottom of the positioning plates 8 is fixedly connected with the top end of the connecting rod 7, the driving gear 6 is driven to rotate through the operation of the servo motor 5, the two gear rods 4 can be driven to synchronously displace in opposite directions by matching with the meshing state of the driving gear 6 and the two gear rods 4 respectively, the gear rods 4 keep linear motion by matching with the sliding capacity of the sliding rail 3 and can support the gear rods 4, the positioning plates 8 are driven to synchronously move by matching with the connecting rod 7 while the gear rods 4 move, a circuit board to be detected is placed between the two positioning plates 8, two sides of the two positioning plates 8 can be clamped by moving in opposite directions, and the positioning box 2 is driven to rotate, consequently reached and carried out the centre gripping to the circuit board and freely changed the purpose of paster orientation, can make the circuit board that waits to detect more stable when detecting, improve the precision demand that detects, the whole aspect carries out the all-round detection of shining to a certain paster solder joint simultaneously, and then has avoided the phenomenon of detection blind area, has guaranteed the quality of paster solder joint.

The rotary disk 1 is arranged at the top of the detection table 9, a driving device matched with the rotary disk 1 for rotation is arranged on the detection table 9, a storage cabinet is arranged on the detection table 9, the bottom of a fixing plate 10 is fixedly arranged at the top of the detection table 9, the fixing plate 10 is positioned at the left side of the rotary disk 1, the number of guide rods 11 is two, one end of each guide rod 11 is fixedly connected with the top of the detection table 9, the top end of each guide rod 11 is fixedly connected with the fixing plate 10, the number of sliding sleeves 13 is two, the two sliding sleeves 13 are fixedly arranged on an installation block 12, the sliding sleeves 13 are sleeved on the outer surfaces of the guide rods 11, the sliding sleeves 13 are in sliding connection with the guide rods 11, a rack 14 is fixedly arranged at the middle position at the right side of the fixing plate 10, an installation groove 15 is formed in the installation block 12, a walking gear, the walking motor 17 is fixedly arranged on the mounting block 12, the output end of the walking motor 17 is in transmission connection with the walking gear 16, the RGB three-color light source 18 is fixedly arranged on the right side of the mounting block 12 through a bracket, the RGB three-color light source 18 is positioned right above the top of the positioning box 2, the walking gear 16 is driven to rotate through the running of the walking motor 17, the meshing state of the walking gear 16 and the rack 14 is matched, and the sliding capacity of the sliding sleeve 13 on the guide rod 11 is combined, so that the whole mounting block 12 can be adjusted in the vertical position on the fixing plate 10, and the RGB light source 18 is driven to be adjusted in height, therefore, the distance between the RGB three-color light source 18 and the circuit board can be changed according to the irradiation requirement, the sufficient irradiation effect of the RGB three-color light source 18 on the paster is ensured, the detection accuracy can be improved, and the irradiation range of, the patch is fully exposed to light, so that the detection accuracy of the phenomena of missing parts, wrong parts, component deviation, tombstone and welding spot defects is improved.

In the using process, the driving gear 6 is driven to rotate by the operation of the servo motor 5, the matching driving gear 6 is respectively meshed with the two toothed bars 4, the two toothed bars 4 can be driven to synchronously move in opposite directions, the toothed bars 4 keep linear motion by matching with the sliding capacity of the sliding rail 3, and can support the toothed bars 4, the toothed bars 4 are matched with the connecting rod 7 to drive the positioning plates 8 to synchronously move while moving, a circuit board to be detected is placed between the two positioning plates 8, the two positioning plates 8 can be clamped by moving in opposite directions, and the positioning boxes 2 are driven to rotate by matching with the rotating disc 1, so that the purposes of clamping the circuit board and freely changing the direction of a paster are achieved, the circuit board to be detected is more stable during detection, the detection precision requirement is improved, and meanwhile, all-directional irradiation detection is carried out on a certain paster welding spot in all directions, thereby avoiding the phenomenon of detection blind areas.

The utility model discloses a control mode comes automatic control through the controller, and the control circuit of controller can realize through the simple programming of technical staff in this field, and the supply also belongs to the common general knowledge in this field, and the utility model discloses mainly used protects mechanical device, so the utility model discloses no longer explain control mode and circuit connection in detail.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a solder joint detection device based on SMT paster, includes rotary disk (1), location box (2), slide rail (3), ratch (4), servo motor (5), drive gear (6), connecting rod (7), locating plate (8), examines test table (9), fixed plate (10), guide bar (11), installation piece (12), sliding sleeve (13), rack (14), walking gear (16), walking motor (17) and RGB light source (18), its characterized in that: the top of the rotating disc (1) is fixedly connected with the bottom of the positioning box (2), the front side and the rear side of the bottom of the inner wall of the positioning box (2) are respectively fixedly connected with the bottoms of the two sliding rails (3), one side of the toothed bar (4) is fixedly connected with the free ends of the sliding rails (3), the bottom of the servo motor (5) is fixedly connected with the middle position of the bottom of the inner wall of the positioning box (2), the driving gear (6) is fixedly installed on the output end of the servo motor (5), the front side and the rear side of the outer edge of the driving gear (6) are respectively in meshed transmission connection with one sides opposite to the two toothed bars (4), one end of the connecting rod (7) is fixedly connected with the top of the toothed bar (4), the top end of the connecting rod (7) extends to the top of the positioning box (2), and the two positioning plates (8) are respectively positioned on the two sides of, the positioning plate (8) is connected with the positioning box (2) in a sliding manner, and the bottom of the positioning plate (8) is fixedly connected with the top end of the connecting rod (7);

the rotary table (1) is installed at the top of a detection table (9), a driving device which is matched with the rotary table (1) to rotate for use is installed on the detection table (9), a storage cabinet is arranged on the detection table (9), the bottom of a fixed plate (10) is fixedly installed at the top of the detection table (9), the fixed plate (10) is located on the left side of the rotary table (1), the number of the guide rods (11) is two, one ends of the two guide rods (11) are fixedly connected with the top of the detection table (9), the top end of each guide rod (11) is fixedly connected with the fixed plate (10), the number of the sliding sleeves (13) is two, the two sliding sleeves (13) are fixedly installed on an installation block (12), the sliding sleeves (13) are sleeved on the outer surfaces of the guide rods (11), the sliding sleeves (13) are slidably connected with the guide rods (11), and the rack (14) is fixedly installed at the middle position on the right side of the fixed plate (10), mounting groove (15) have been seted up on installation piece (12), walking gear (16) rotate and install the inside in mounting groove (15), walking gear (16) are connected with rack (14) meshing transmission, walking motor (17) fixed mounting is on installation piece (12), the output and the walking gear (16) transmission of walking motor (17) are connected, RGB three-colour light source (18) are through support fixed mounting on the right side of installation piece (12), RGB three-colour light source (18) are located location box (2) top directly over.