SMT feeding material pick-up and place system and feeding method thereof

Abstract

The present invention belongs to the technical field of manufacturing electrical component assemblies, and specifically relates to a material picking and placing system for SMT feeding and a feeding method thereof. The device comprises: a manipulator, one side of which has a material box, the axis of the reel is provided with a center hole, the center hole is provided with a plurality of slots along the axial direction, a material picking chuck, which is installed at the end of the manipulator, and the material picking chuck comprises two separate top columns, the outer side of the material picking chuck has a plurality of flexible columns, one end of the flexible column is connected to the material picking chuck, and the other end is connected to the manipulator, when the two top columns are contracted radially inward, the manipulator drives the two top columns to be inserted into the center hole, and then the two top columns are opened radially outward to align the flexible columns with the slots. The present invention sets the material picking chuck and the flexible column on the outer wall of the material picking chuck, so that when the reel is clamped, the material picking chuck extends outward, the flexible column is axially elongated and radially shortened, and then aligned with the slots of the reel, so as to prevent the reel from rotating while clamping the reel.

Description

Technical Field

[0001] The invention belongs to the technical field of manufacturing electrical component assemblies, and specifically relates to the installation technology of electrical component assemblies, and in particular to a SMT feeding pick-and-place system and a feeding method thereof. Background Art

[0002] SMT (Surface Mount Technology) is a commonly used assembly technology and process in the current electronic equipment production industry. In the patch process, a material tape is needed, and the material tape is wound on a reel. After the material tape is used up, the reel needs to be moved to the reel changing area by a robot.

[0003] In the related art, when a robot is carrying a reel, in order to place the reel for rotation, a slot is generally opened on the reel, and a card block is adaptively installed on the robot to cooperate with the slot to position the reel. However, since the slot is opened in a directional manner, the robot must ensure that the card block is aligned with the slot when clamping the reel, otherwise the robot will come into hard contact with the reel and damage the reel.

[0004] Therefore, it is urgent to design a material picking and placing system and a material feeding method for SMT feeding to solve the technical problem that the robot arm and the reel are difficult to align when the robot arm clamps the reel.

[0005] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0006] The embodiments of the present disclosure at least provide a material picking and placing system for SMT material feeding and a material feeding method thereof.

[0007] In a first aspect, an embodiment of the present disclosure provides a material pick-up and place system for SMT material feeding, comprising: a manipulator, one side of which has a material box; the material box is suitable for placing a plurality of reels, the axis of the reel is provided with a central hole, and the central hole is provided with a plurality of slots along the axial direction;

[0008] The material picking chuck is installed at the end of the manipulator. The material picking chuck includes two split top columns. The axes of the two top columns are arranged in parallel, and the top columns are suitable for sliding in the radial direction.

[0009] The outer side of the material picking chuck is provided with a plurality of flexible columns, one end of the flexible column is connected to the material picking chuck, and the other end is connected to the manipulator; and

[0010] When the two push pillars shrink radially inward, the robot drives the two push pillars to insert into the central hole, and then the two push pillars expand radially outward to align the flexible pillar with the card slot.

[0011] In an optional embodiment, the material picking chuck further includes a movable seat, and two top columns are slidably arranged at the end of the movable seat;

[0012] The movable seat is slidably connected to the manipulator; and

[0013] After the two top columns are inserted into the center hole, the two top columns open radially outward so that the flexible column is clamped with the inner wall of the reel. Then the movable seat drives the two top columns to extend axially outward, the flexible column is elongated and radially shortened, so that the flexible column is inserted into the corresponding slot.

[0014] In an optional embodiment, the end of the flexible column away from the robot arm has a guiding slope, and the guiding slope corresponds to the central hole of the reel.

[0015] In an optional embodiment, a positioning notch is formed on the outer wall of one end of the flexible column facing the manipulator.

[0016] In an optional embodiment, the end of the top column away from the robot arm has an interlaced arc surface.

[0017] In an optional embodiment, the reel includes a reel seat and a matching piece that are separately arranged, and the reel seat and the matching piece are arranged in parallel;

[0018] The coiling disc seat is elastically connected to the matching piece.

[0019] In an optional embodiment, the coil reel seat has a positioning ring on one side facing the matching piece, and a ring groove is formed on the positioning ring;

[0020] The side of the matching piece facing the coiling disc seat is provided with a matching protrusion, and the matching protrusion is inserted into the annular groove.

[0021] In an optional embodiment, a matching spring is provided in the annular groove, and two ends of the matching spring are respectively connected to the annular groove and the matching protrusion.

[0022] In an optional embodiment, a snap-fit ​​groove is provided in the annular groove;

[0023] The outer wall of the matching protrusion is provided with a spring plunger, and the spring plunger corresponds to the clamping groove.

[0024] In a second aspect, an embodiment of the present disclosure further provides a feeding method for an SMT pick-and-place system, comprising: the pick-up chuck extends outwardly along the axial direction, and the flexible column is elongated and radially shortened so that the flexible column is aligned with the card slot.

[0025] The beneficial effect of the present invention is that, by providing a material picking chuck and a flexible column on the outer wall of the material picking chuck, when clamping the reel, the material picking chuck extends outward, the flexible column is axially elongated and radially shortened, and then aligned with the clamping slot of the reel to clamp the reel while preventing the reel from rotating.

[0026] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A three-dimensional diagram of a SMT material feeding and placing system provided in an embodiment of the present disclosure;

[0030] Figure 2 A schematic diagram of the structure of a material picking chuck provided in an embodiment of the present disclosure;

[0031] Figure 3 A schematic diagram of the structure of a material box provided in an embodiment of the present disclosure;

[0032] Figure 4 A cross-sectional view of a material box provided in an embodiment of the present disclosure;

[0033] Figure 5 for Figure 4 A partial enlarged view of part A.

[0034] In the figure:

[0035] 1. Robotic arm;

[0036] 2. Material box; 20. Reel; 21. Center hole; 22. Clamping slot; 23. Reel seat; 231. Positioning ring; 232. Ring groove; 233. Clamping slot; 24. Matching piece; 241. Matching protrusion; 242. Spring plunger; 25. Matching spring;

[0037] 3. Material picking chuck; 312. Positioning notch; 32. Movable seat; 33. Top column; 331. Interlaced arc surface;

[0038] 4. Retrieval rod;

[0039] 5. Flexible column; 51. Guide slope. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] After research, it was found that in the related technology, when the robot is carrying the reel, in order to place the reel to rotate, a slot is generally opened on the reel, and a card block is adaptively installed on the robot to cooperate with the slot to position the reel. However, since the opening of the slot is directional, the robot must ensure that the card block is aligned with the slot when clamping the reel, otherwise, the robot will come into hard contact with the reel and damage the reel.

[0042] The defects existing in the above solutions are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present disclosure for the above problems below should be the contributions made by the inventor to the present disclosure during the disclosure process.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0044] Based on the above research, Figure 1 The embodiment of the present disclosure provides a material pick-up and place system for SMT material feeding, including: an equipment box, a manipulator 1 is provided inside the equipment box, a material box 2 is provided on one side of the manipulator 1, a plurality of reels 20 are suitable for being placed inside the material box 2, and a material tape for feeding is wound on the reel 20. A recovery rod 4 is provided above the material box 2, the recovery rod 4 is tilted, and the lower end of the recovery rod 4 is fixedly connected to a component extending downward from the top of the equipment box, and the recovery rod 4 is suitable for recovering the reel 20. When the tape on the reel 20 is pulled out, the manipulator 1 carries away the empty reel 20 and hangs it on the recovery rod 4.

[0045] Reference Figure 3 The axis of the reel 20 is provided with a central hole 21, which is matched with the recovery rod 4. At the same time, since the recovery rod 4 is inclined, after the reel 20 is inserted into the recovery rod 4 through the central hole 21, the reel 20 will slide downward along the axial direction of the recovery rod 4. In this way, the reel 20 can be recovered in sequence.

[0046] Reference Figure 2In order to achieve the effect of the manipulator 1 carrying the reel 20, in at least one embodiment, a material picking chuck 3 is installed at the end of the manipulator 1. The material picking chuck 3 includes two top columns 33 that are separately arranged. The axes of the two top columns 33 are arranged in parallel, and the top columns 33 are suitable for sliding in the radial direction. The end of the top column 33 away from the manipulator 1 has an interlaced arc surface 331, and the interlaced arc surface 331 is suitable for guiding the material picking chuck 3 to be inserted into the center hole 21. The outside of the material picking chuck 3 also has a plurality of flexible columns 5. The end of the flexible column 5 facing the manipulator 1 is a hard section, and the end away from the manipulator 1 is a flexible section. The flexible section of the flexible column 5 protrudes from the outer contour cylindrical surface of the material picking chuck 3, and the end of the flexible section of the flexible column 5 is connected to the material picking chuck 3, and the end of the hard section of the flexible column 5 is connected to the manipulator 1. When the reel 20 is transported, the two top posts 33 are first radially brought together until they fit together, and then the two top posts 33 are inserted into the center hole 21 while being kept closed under the drive of the robot 1. At this time, the two top posts 33 will not touch the inner wall of the center hole 21, and then the two top posts 33 are radially opened outward. Figure 3 The center hole 21 is also provided with a plurality of slots 22 along the axial direction. When the two top columns 33 are opened radially outward, the flexible column 5 is aligned with the slots 22 .

[0047] Reference Figure 2 The structure of the material picking chuck 3 is further described below. The material picking chuck 3 also includes a movable seat 32. The two top columns 33 are slidably arranged at the ends of the movable seat 32. The movable seat 32 is slidably connected to the manipulator 1. When the two top columns 33 are inserted into the central hole 21, the two top columns 33 are opened radially outward so that the flexible column 5 is engaged with the inner wall of the reel 20. Then the movable seat 32 drives the two top columns 33 to extend outward axially, and the flexible column 5 is elongated and radially shortened so that the flexible column 5 is inserted into the corresponding slot 22. At this time, the flexible column 5 is aligned with the slot 22 of the reel 20, so that the material picking chuck 3 can position and clamp the reel 20, and prevent the reel 20 from rotating.

[0048] Reference Figure 4In at least one embodiment, the reel 20 includes a reel seat 23 and a matching piece 24 which are separately arranged. The reel seat 23 and the matching piece 24 are arranged in parallel, and the reel seat 23 is elastically connected to the matching piece 24. The reel seat 23 has a positioning ring 231 on the side facing the matching piece 24, and a ring groove 232 is provided on the positioning ring 231. The matching piece 24 has a matching protrusion 241 on the side facing the reel seat 23, and the matching protrusion 241 is inserted into the ring groove 232. In order to achieve the elastic connection between the reel seat 23 and the matching piece 24, preferably, a matching spring 25 is provided in the ring groove 232, and the two ends of the matching spring 25 are respectively connected to the ring groove 232 and the matching protrusion 241 to achieve this effect. Therefore, under the influence of the elasticity of the matching spring 25, when the matching spring 25 is compressed, the convex head of the matching protrusion 241 will not collide with the bottom of the annular groove 232, that is, the matching piece 24 and the coiling disc seat 23 will not collide in the axial direction of the coiling disc 20, thereby achieving the protection effect of the coiling disc seat 23 and the matching piece 24. When the matching spring 25 is stretched, since the matching protrusion 241 and the annular groove 232 are respectively connected by the two ends of the matching spring 25, the matching protrusion 241 will not completely separate from the annular groove 232, thereby avoiding the matching piece 24 and the coiling disc seat 23 from being completely separated. In order to further strengthen the connection effect between the coiling disc seat 23 and the matching piece 24.

[0049] Reference Figure 5 A snap-fit ​​groove 233 is also provided in the annular groove 232, and a spring plunger 242 is provided on the outer wall of the mating protrusion 241, and the spring plunger 242 corresponds to the snap-fit ​​groove 233. When the mating protrusion 241 is inserted into the annular groove 232 to a certain depth, the spring plunger 242 will be snapped into the snap-fit ​​groove 233, which to a certain extent limits the movement of the coil reel seat 23 and the mating piece 24 in the axial direction of the reel 20, and to a certain extent prevents the mating protrusion 241 from being completely separated from the annular groove 232, thereby achieving the above-mentioned effect of strengthening the connection.

[0050] When the reel 20 is recovered, the reel 20 slides from the higher end of the recovery rod 4 to the lower end along the recovery rod 4 until one side of the reel 20 collides with the component connected to the recovery rod 4, and the reel 20 recovered after the first recovered reel 20 will collide with the last recovered reel 20. Therefore, in order to prevent the reel from being damaged, the buffering problem during the collision of the reel is particularly important. Therefore, in at least one embodiment, referring to Figure 2The end of the flexible column 5 away from the manipulator 1 has a guiding slope 51, which corresponds to the central hole 21 of the reel 20. The guiding slope 51 is suitable for pushing the matching piece 24 away to realize the spring plunger 242 to be disengaged from the clamping groove 233. Therefore, it should be noted that when the material picking chuck 3 is inserted into the central hole 21 of the reel 20, it first passes through the reel seat 23 and then passes through the matching piece 24. In order to achieve the above-mentioned detachment effect, a positioning notch 312 is provided between the flexible column 5 and the manipulator 1. When the material picking chuck 3 is inserted into the central hole 21 of the reel 20 and the flexible column 5 is completely located between the reel seat 23 and the matching piece 24, the positioning notch 312 passes through the central hole 21 on the reel seat 23. Then the two top columns 33 are opened radially outward, and the movable seat 32 drives the two top columns 33 to extend axially outward. The flexible column 5 is elongated and radially shortened, and the guiding slope 51 will push the edge of the slot 22 on the matching piece 24. Because the matching piece 24 is connected to the reel seat 23, when the matching piece 24 is pushed away from the reel seat 23, the reel seat 23 will also move in the direction where the matching piece 24 is pushed away. However, due to the presence of the positioning notch 312 and the flexibility of the flexible section of the flexible column 5, the end position of the flexible section close to the hard section of the flexible column 5 will not move after being stretched, and the coiling disc seat 23 will be blocked by the end of the flexible section when it moves, resulting in the inability to move. At this time, the matching piece 24 will be pushed away from the coiling disc seat 23, and the spring plunger 242 will be disengaged from the clamping groove 233 until the flexible column 5 is clamped into the clamping groove of the reel 20, so that the material taking chuck 3 can clamp the reel 20 and prevent the reel 20 from rotating, and the spring plunger 242 can be disengaged from the clamping groove 233, that is, the matching piece 24 is no longer in a completely tight connection state with the reel seat 23. In this state, when the reel 20 is recovered by the recovery rod and collides, the matching piece 24 and the reel seat 23 will be buffered by the matching spring 25, preventing the reel 20 from being damaged by the collision.

[0051] In addition, at least one embodiment also provides a feeding method for an SMT picking and placing system, which is performed using the SMT feeding picking and placing system described above. The feeding method includes: the picking chuck 3 extends axially outward, and the flexible column 5 is elongated and radially shortened so that the flexible column 5 is aligned with the slot 22.

[0052] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Inspired by the above-mentioned ideal embodiments of the present invention and through the above-mentioned description, relevant staff can make various changes and modifications without departing from the technical idea of ​​the present invention. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A material picking and placing system for SMT feeding, characterized in that: include: A robot arm (1) having a material box (2) on one side; The material box (2) is suitable for placing a plurality of reels (20), the reels (20) rotate around the material box (2) to release the material tape, the axis of the reels (20) is provided with a central hole (21), and the central hole (21) is provided with a plurality of slots (22) along the axial direction; A material picking chuck (3) is mounted at the end of the manipulator (1), the material picking chuck (3) comprising two top columns (33) which are separately arranged, the axes of the two top columns (33) being arranged in parallel, and the top columns (33) being suitable for sliding in the radial direction; wherein The outer side of the material picking chuck (3) is provided with a plurality of flexible columns (5), one end of the flexible column (5) is connected to the material picking chuck (3), and the other end is connected to the manipulator (1); and When the two top columns (33) are contracted radially inward, the robot (1) drives the two top columns (33) to be inserted into the central hole (21), and then the two top columns (33) are opened radially outward so that the flexible column (5) is aligned with the slot (22).

2. The SMT material feeding and placing system according to claim 1, characterized in that: The material taking chuck (3) further comprises a movable seat (32), and two top columns (33) are slidably arranged at the ends of the movable seat (32); The movable seat (32) is slidably connected to the manipulator (1); and After the two top columns (33) are inserted into the central hole (21), the two top columns (33) are opened radially outward so that the flexible column (5) is engaged with the inner wall of the reel (20). Then, the movable seat (32) drives the two top columns (33) to extend axially outward, and the flexible column (5) is elongated and radially shortened so that the flexible column (5) is inserted into the corresponding slot (22).

3. The SMT material feeding and placing system according to claim 1, characterized in that: The end of the flexible column (5) away from the robot (1) has a guiding slope (51), and the guiding slope (51) corresponds to the central hole (21) of the reel (20).

4. The SMT material feeding and placing system as claimed in claim 2, characterized in that: A positioning notch (312) is provided on the outer wall of one end of the flexible column (5) facing the robot arm (1).

5. The SMT material feeding and placing system according to claim 2, characterized in that: An end of the top column (33) away from the robot arm (1) has an interlaced arc surface (331).

6. The SMT material feeding and placing system according to claim 4, characterized in that: The reel (20) comprises a reel seat (23) and a matching piece (24) which are arranged separately, and the reel seat (23) and the matching piece (24) are arranged in parallel; The coiling disc seat (23) is elastically connected to the matching piece (24).

7. The SMT material feeding and placing system according to claim 6, characterized in that: The coiling disc seat (23) has a positioning ring (231) on one side facing the matching piece (24), and a ring groove (232) is formed on the positioning ring (231); The side of the matching piece (24) facing the coiling disc seat (23) has a matching protrusion (241), and the matching protrusion (241) is inserted into the annular groove (232).

8. The SMT material feeding and placing system according to claim 7, characterized in that: A matching spring (25) is provided in the annular groove (232), and two ends of the matching spring (25) are respectively connected to the annular groove (232) and the matching protrusion (241).

9. The SMT material feeding and placing system according to claim 7, characterized in that: A clamping groove (233) is provided in the annular groove (232); The outer wall of the matching protrusion (241) is provided with a spring plunger (242), and the spring plunger (242) corresponds to the clamping groove (233).

10. A feeding method for an SMT pick-and-place system, characterized in that: The feeding method is performed using the SMT feeding pick-and-place system as described in any one of claims 1 to 9, which includes the following steps: The material taking chuck (3) extends outwardly in the axial direction, and the flexible column (5) is elongated and shortened radially, so that the flexible column (5) is aligned with the clamping groove (22).

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