Suction head assembly

Abstract

The embodiment of the utility model discloses a suction head assembly, which is characterized in that a first suction head and two second suction heads are arranged on a body, and the first suction head and the two second suction heads are arranged around a central area. Therefore, on one hand, the first suction head and the two second suction heads are arranged separately through the body, and when the suction head assembly is driven by the displacement mechanism to move to the position above the workpiece, the pickup part can adsorb a dielectric plate and two connecting lines of the workpiece. Therefore, the success rate of workpiece picking is improved. And meanwhile, when the position changing mechanism moves the workpieces between the work stations, the situation that the workpieces fall off can be avoided. And on the other hand, the first suction head and the two second suction heads which are independently arranged are used, so that damage to the connecting line and the dielectric plate when the suction head assembly adsorbs the workpiece can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automation, in particular to a suction head assembly. Background Art

[0002] The parts of electronic products are relatively small. During assembly, a suction head is usually used to pick up the parts to facilitate the movement of the parts. However, when the structure of the parts is complex, for example, a connection line is fixedly connected to a dielectric board to electrically connect the connection line to the electronic components on the dielectric board. A workpiece composed of a dielectric board, electronic components, and a connection line is difficult to be picked up by the suction head. How to ensure the success rate of the suction head picking and avoid the workpiece from falling during movement has become a problem to be solved. Summary of the Utility Model

[0003] In view of this, an embodiment of the utility model provides a suction head assembly, which uses a first suction head and two second suction heads to adsorb at different positions of the workpiece respectively, improving the success rate of the suction head assembly picking and avoiding the workpiece from falling easily.

[0004] The suction head assembly of the embodiment of the utility model includes:

[0005] A picking part, including a body and a first suction head and two second suction heads arranged on the body. The body includes a central area, and the central area is spaced between the first suction head and the two second suction heads. The first suction head and the two second suction heads face the same side of the body. The two second suction heads are symmetrically arranged relative to the central area. The arrangement direction of the first suction head and the central area is perpendicular to the arrangement direction of the two second suction heads.

[0006] Further, the body includes a first mounting beam and a second mounting beam. The center of the second mounting beam includes the central area. The two second suction heads are located at both ends of the second mounting beam. The first suction head is arranged at one end of the first mounting beam. The other end of the first mounting beam is connected to the central area.

[0007] Further, the first mounting beam and the second mounting beam are perpendicularly connected;

[0008] The first suction head includes a plurality of first suction holes, and the second suction head includes a plurality of second suction holes. The arrangement direction of the plurality of first suction holes is consistent with the length direction of the first mounting beam, and the arrangement direction of the plurality of second suction holes is consistent with the length direction of the second mounting beam.

[0009] Further, the plurality of first suction holes include two groups of first suction holes, and the two groups of first suction holes are spaced and symmetrically arranged relative to the first mounting beam.

[0010] Further, the first suction head includes an avoidance groove, the orientation of the avoidance groove is the same as that of the first suction hole, and the avoidance groove is located between two groups of the first suction holes.

[0011] Further, the first suction head includes a first abutting surface, and the first suction hole is arranged on the first abutting surface;

[0012] The second suction head includes a second abutting surface, the second suction hole is arranged on the second abutting surface, and the distance from the first abutting surface to the body is less than the distance from the second abutting surface to the body.

[0013] Further, the first suction head includes two of the first abutting surfaces, and both the first abutting surface and the second abutting surface are strip-shaped;

[0014] Two groups of the first suction holes are respectively arranged on two of the first abutting surfaces, and a plurality of the first suction holes are arranged at intervals along the length direction of the first abutting surface, and a plurality of the second suction holes are arranged at intervals along the length direction of the corresponding second abutting surface.

[0015] Further, the suction head assembly includes:

[0016] An elastic part; and

[0017] A driving part, which is arranged on the side of the body away from the first suction head and is elastically connected to the body through the elastic part, and when the picking part is in contact with the workpiece, the elastic part has an elastic deformation amount.

[0018] Further, the driving part includes a main air passage, the picking part includes a shunt air passage, and the main air passage is communicated with a plurality of the first suction holes and a plurality of the second suction holes through the shunt air passage.

[0019] Further, the driving part includes two positioning bodies and a telescopic rod, the telescopic rod includes part of the main air passage, the elastic part is a compression spring, the compression spring is sleeved on the telescopic rod and abuts against the two positioning bodies at both ends;

[0020] When the picking part is in contact with the workpiece, the two positioning bodies approach each other, and part of the telescopic rod extends into the body.

[0021] Further, the material of the first suction head is aluminum, and the material of the second suction head is polyetheretherketone.

[0022] The suction head assembly of the embodiment of the utility model arranges the first suction head and the two second suction heads on the main body, and arranges the first suction head and the two second suction heads around the central area. Therefore, on the one hand, the first suction head and the two second suction heads are arranged separately from each other through the main body, and when the suction head assembly is moved above the workpiece driven by the displacement mechanism, the picking part can adsorb the dielectric plate and the two connecting lines of the workpiece respectively. Thereby, the success rate of picking up the workpiece is improved. At the same time, when the displacement mechanism moves the workpiece between workstations, the situation where the workpiece falls can be avoided. On the other hand, the use of the independently arranged first suction head and the two second suction heads can avoid damage to the connecting lines and the dielectric plate when the suction head assembly adsorbs the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0024] Figure 1 It is a schematic diagram of the structure of a workpiece in an embodiment of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the suction head assembly of an embodiment of the utility model;

[0026] Figure 3 yes Figure 2 A schematic diagram of the structure in the direction indicated by the arrow B;

[0027] Figure 4 yes Figure 2 A schematic diagram of the structure in the direction indicated by the arrow C;

[0028] Figure 5 This is a schematic diagram of the positional relationship between a workpiece and a suction head assembly according to an embodiment of the utility model;

[0029] Figure 6 It is a structural schematic diagram of the elastic part of an embodiment of the utility model.

[0030] Description of reference numerals:

[0031] 1- Pickup unit;

[0032] 11-first suction head; 111-avoidance groove;

[0033] 12- second suction head;

[0034] 13-Ontology;

[0035] 14-Diverter airway;

[0036] 131 - first mounting beam; 132 - second mounting beam; 133 - central area;

[0037] 21 - First suction hole; 22 - Second suction hole;

[0038] 31 - First abutting surface; 32 - Second abutting surface;

[0039] 4 - Elastic part;

[0040] 5 - Driving part; 51 - Main air duct; 52 - Positioning body; 53 - Telescopic rod;

[0041] A - Workpiece;

[0042] A1 - Dielectric plate; A11 - Electronic component; A2 - Connection line; A3 - Connection end. Detailed implementation mode

[0043] The present utility model will be described below based on embodiments, but the present utility model is not limited to these embodiments. In the following detailed description of the present utility model, some specific details are described in detail. Those skilled in the art can fully understand the present utility model without the description of these details. In order to avoid confusing the essence of the present utility model, well-known methods, processes, procedures, components and circuits are not described in detail.

[0044] In addition, those of ordinary skill in the art should understand that the drawings provided herein are for illustrative purposes only, and the drawings are not necessarily drawn to scale.

[0045] Unless the context clearly requires otherwise, the words such as "including", "comprising" and the like in the whole application document shall be interpreted as the meaning of including rather than exclusive or exhaustive; that is, the meaning of "including but not limited to".

[0046] In the description of the present utility model, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0047] Figure 1 It is a schematic structural diagram of the workpiece A in this embodiment. The workpiece A in this embodiment includes a dielectric plate A1, two connection lines A2 and a connection end A3. Electronic components A11 are arranged on the dielectric plate A1. One end of the connection line A2 is fixed to the dielectric plate A1 and electrically connected to the electronic components A11, and the other end is connected to the connection end A3.

[0048] Specifically, the workpiece A in this embodiment can be used in a camera module of a mobile phone. The dielectric plate A1 is a ceramic substrate, and the connecting line A2 is a flexible printed circuit board (FPC). The two connecting lines A2 are bent into an L shape and are symmetrically arranged. The electronic component A11 includes a plurality of capacitors arranged on the ceramic substrate. The electronic component A11 is attached to the ceramic substrate by a flip chip process, and the ceramic substrate can withstand a higher reflow temperature during the reflow soldering process.

[0049] Figure 2 : is a schematic diagram of the structure of the suction head assembly of this embodiment. The suction head assembly in this embodiment is used to suck the above-mentioned workpiece A through negative pressure. At the same time, under the drive of the displacement mechanism, the suction head assembly can suck up the workpiece A from the loading tray and move it to the next workstation.

[0050] Figure 3 yes Figure 2 Schematic diagram of the structure in the direction indicated by arrow B. Figure 4 yes Figure 2 Schematic diagram of the structure in the direction indicated by arrow C. Figure 5 Schematic diagram of the positional relationship between the workpiece A and the suction head assembly of this embodiment. Figure 5 The outline of the pick-up portion 1 in FIG. 1 is shown with a dotted line.

[0051] In some embodiments, Figures 1 - 3 As shown, the suction head assembly in this embodiment includes a picking portion 1. The picking portion 1 includes a body 13 and a first suction head 11 and two second suction heads 12 arranged on the body 13.

[0052] Specifically, in this embodiment, the first suction head 11 and the second suction head 12 can be connected to a negative pressure gas source to generate negative pressure through the negative pressure gas source, so that the first suction head 11 and the second suction head 12 can adsorb the workpiece A.

[0053] Further reference Figure 4 As shown, the body 13 includes a central area 133, and the central area 133 is arranged between the first suction head 11 and the two second suction heads 12. The first suction head 11 and the two second suction heads 12 face the same side of the body 13, and the two second suction heads 12 are symmetrically arranged relative to the central area 133. The arrangement direction of the first suction head 11 and the central area 133 is perpendicular to the arrangement direction of the two second suction heads 12. That is, the line connecting the first suction head 11 and the central area 133 is perpendicular to the line connecting the two second suction heads 12.

[0054] Further reference Figure 5As shown, in this embodiment, when the first suction head 11 is adsorbed on the medium plate A1, the two second suction heads 12 can be adsorbed on the tail ends of the two connecting lines A2, that is, the position of the connecting line A2 close to the connecting end A3. As a result, the workpiece A is fixed by the third point in the horizontal direction. As a result, the stability of the suction head assembly in the process of picking up the workpiece A is increased. At the same time, the two second suction heads 12 are close to the end of the connecting line A2, which can prevent the connecting line A2 from sagging below the suction head assembly due to the dead weight of the connecting end A3.

[0055] In summary, the suction head assembly of this embodiment sets the first suction head 11 and the two second suction heads 12 on the main body 13, and sets the first suction head 11 and the two second suction heads 12 around the central area 133. Therefore, on the one hand, the first suction head 11 and the two second suction heads 12 are set separately from each other through the main body 13, and when the suction head assembly moves to the top of the workpiece A under the drive of the displacement mechanism, the picking part 1 can adsorb the dielectric plate A1 and the two connecting lines A2 of the workpiece A respectively. Thereby, the success rate of picking up the workpiece A is improved. At the same time, when the displacement mechanism moves the workpiece A between the workstations, the situation where the workpiece A falls can be avoided. On the other hand, the use of the independently set first suction head 11 and the two second suction heads 12 can avoid damage to the connecting line A2 and the dielectric plate A1 when the suction head assembly adsorbs the workpiece A.

[0056] In some embodiments, Figure 2 , Figure 4 and Figure 5 As shown, the body 13 includes a first mounting beam 131 and a second mounting beam 132. The center of the second mounting beam 132 includes a central area 133, and the two second suction heads 12 are located at both ends of the second mounting beam 132. The first suction head 11 is arranged at one end of the first mounting beam 131, and the other end of the first mounting beam 131 is connected to the central area 133. In this embodiment, by providing the first mounting beam 131 and the second mounting beam 132, the weight of the picking part 1 can be reduced, and the load brought by the suction head assembly to the displacement mechanism can be reduced.

[0057] In some embodiments, Figure 4 As shown, the first mounting beam 131 and the second mounting beam 132 are vertically connected. The first suction head 11 includes a plurality of first suction holes 21, and the second suction head 12 includes a plurality of second suction holes 22. The arrangement direction of the plurality of first suction holes 21 is consistent with the length direction of the first mounting beam 131, and the arrangement direction of the plurality of second suction holes 22 is consistent with the length direction of the second mounting beam 132.

[0058] Thus, the arrangement direction of the multiple second suction holes 22 in this embodiment can well adapt to the extension direction of the connection line A2, which helps to increase the adsorption area of the second suction head 12 on the connection line A2. On the contrary, the arrangement direction of the multiple second suction heads 12 can adapt to the side length of the dielectric plate A1, which helps to increase the adsorption area of the first suction head 11 on the dielectric plate A1.

[0059] In some embodiments, as Figures 3 - 5 shown, the multiple first suction holes 21 include two groups of first suction holes 21, and the two groups of first suction holes 21 are arranged at intervals and symmetrically arranged with respect to the first mounting beam 131. The two groups of first suction holes 21 in this embodiment can well avoid the electronic components A11 arranged on the dielectric plate A1, and prevent the first suction head 11 and the second suction head 12 from crushing the electronic components A11 during the process of the suction head assembly contacting the workpiece A.

[0060] In some embodiments, as Figures 4 - 5 shown, the first suction head 11 includes an avoidance groove 111, the orientation of the avoidance groove 111 is the same as that of the first suction hole 21, and the avoidance groove 111 is located between the two groups of first suction holes 21.

[0061] Specifically, the avoidance groove 111 is recessed from the bottom of the suction head assembly in a direction away from the workpiece A, and the depth of the avoidance groove 111 is configured to be greater than the height of the electronic component A11 on the dielectric plate A1. Thus, it can be avoided that the top of the electronic component A11 contacts the bottom surface of the avoidance groove 111 when the suction head assembly sucks the workpiece A.

[0062] In some embodiments, as Figure 4 and Figure 5 shown, the first suction head 11 includes a first abutting surface 31, and the first suction hole 21 is arranged on the first abutting surface 31.

[0063] Referring further to Figure 2 shown, the second suction head 12 includes a second abutting surface 32, the second suction hole 22 is arranged on the second abutting surface 32, and the distance from the first abutting surface 31 to the body 13 is less than the distance from the second abutting surface 32 to the body 13 (as shown by the thin dotted line in Figure 2 ).

[0064] It is easy to understand that the thickness of the dielectric plate A1 of the workpiece A is less than the thickness of the flexible printed circuit board. In this embodiment, the height of the second abutting surface 32 is configured to be lower than the height of the first abutting surface 31, so that when the first suction head 11 contacts the dielectric plate A1, the second suction head 12 can also contact the flexible printed circuit board. This can prevent the first suction head 11 from crushing the dielectric plate A1 or the second suction head 12 from being unable to effectively adsorb the connection line A2.

[0065] In some embodiments, as Figures 4 - 5As shown, the first suction head 11 includes two first abutting surfaces 31, and both the first abutting surface 31 and the second abutting surface 32 are strip-shaped.

[0066] Two groups of first suction holes 21 are respectively arranged on the two first abutting surfaces 31, and a plurality of first suction holes 21 are arranged at intervals along the length direction of the first abutting surface 31, and a plurality of second suction holes 22 are arranged at intervals along the length direction of the corresponding second abutting surface 32.

[0067] Specifically, as shown in Region I of Figure 5 , when the suction head assembly is suction-engaged with the workpiece A, the first abutting surface 31 contacts the dielectric plate A1, and the distance between the first abutting surface 31 and the adjacent electronic component A11 is 0.4 mm. When the displacement mechanism drives the suction head assembly to repeatedly pick up the workpiece A, the tolerance between the electronic component A11 and the first abutting surface 31 can ensure that the first abutting surface 31 will not interfere with the electronic component A11. At the same time, the width of the second abutting surface 32 is configured to be adapted to the width of the flexible printed circuit board. For example, the width of the second abutting surface 32 is slightly larger than the width of the flexible printed circuit board to reduce the indentation generated by the second abutting surface 32 on the flexible printed circuit board.

[0068] In some embodiments, as shown in Figures 2 - 3 , the suction head assembly includes an elastic part 4 and a driving part 5. In this embodiment, the driving part 5 is used to connect with the displacement mechanism, so that the displacement mechanism can move the suction head assembly through the driving part 5.

[0069] Figure 6 is a schematic structural diagram of the elastic part 4 of this embodiment. Further referring to Figure 6 , the driving part 5 is arranged on the side of the main body 13 away from the first suction head 11 and is elastically connected to the main body 13 through the elastic part 4, and when the picking part 1 is in a state of abutting against the workpiece A, the elastic part 4 has an elastic deformation amount.

[0070] Specifically, in the process of the picking part 1 approaching the workpiece A until it abuts against the workpiece A, the length of the elastic part 4 is reduced from the distance L1 to the distance L2. In this form, the elastic part 4 still maintains a certain elastic deformation space to avoid rigid contact between the picking part 1 and the workpiece A and damaging the workpiece A.

[0071] In some embodiments, as shown in Figure 2 , the driving part 5 includes a main air duct 51. The picking part 1 includes a shunt air duct 14, and the main air duct 51 is communicated with a plurality of first suction holes 21 and a plurality of second suction holes 22 through the shunt air duct 14 (as shown by the thick dotted line in the figure).

[0072] Thus, a negative pressure air source can be used to provide negative pressure for multiple first suction holes 21 and multiple second suction holes 22 simultaneously. At the same time, it can also ensure that the suction forces of the first suction head 11 and the second suction head 12 acting on the workpiece A are the same.

[0073] In some embodiments, as Figure 2 and Figure 3 shown, the driving part 5 includes two positioning bodies 52 and a telescopic rod 53. The telescopic rod 53 includes a partial main air duct 51. The elastic part 4 is a compression spring, which is sleeved on the telescopic rod 53 and its two ends are abutted against the two positioning bodies 52. When the picking part 1 is in contact with the workpiece A, the two positioning bodies 52 approach each other, and a part of the telescopic rod 53 extends into the main body 13.

[0074] In this embodiment, two positioning bodies 52 are used to limit the compression amount of the compression spring, and at the same time, the telescopic rod 53 is used to prevent the compression spring from slipping out between the two positioning bodies 52 when the compression spring is compressed.

[0075] Furthermore, the material of the first suction head 11 is aluminum, and the material of the second suction head 12 is polyether ether ketone, that is, PEEK. Thus, it ensures that the first suction head 11 has sufficient mechanical strength. At the same time, the second suction head 12 can not only have sufficient strength, but also utilize its own self-lubricating property to avoid impacting and tearing the flexible printed circuit board.

[0076] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A suction head assembly, characterized in that: The suction head assembly comprises: The picking portion (1) comprises a body (13) and a first suction head (11) and two second suction heads (12) arranged on the body (13); the body (13) comprises a central area (133); the central area (133) is arranged between the first suction head (11) and the two second suction heads (12); the first suction head (11) and the two second suction heads (12) face the same side of the body (13); the two second suction heads (12) are symmetrically arranged relative to the central area (133); and the arrangement direction of the first suction head (11) and the central area (133) is perpendicular to the arrangement direction of the two second suction heads (12).

2. The suction head assembly according to claim 1, characterized in that: The body (13) comprises a first mounting beam (131) and a second mounting beam (132); the center of the second mounting beam (132) comprises the central area (133); the two second suction heads (12) are located at two ends of the second mounting beam (132); the first suction head (11) is arranged at one end of the first mounting beam (131); and the other end of the first mounting beam (131) is connected to the central area (133).

3. The suction head assembly according to claim 2, characterized in that: The first mounting beam (131) and the second mounting beam (132) are vertically connected; The first suction head (11) comprises a plurality of first suction holes (21), and the second suction head (12) comprises a plurality of second suction holes (22); an arrangement direction of the plurality of first suction holes (21) is consistent with a length direction of the first mounting beam (131), and an arrangement direction of the plurality of second suction holes (22) is consistent with a length direction of the second mounting beam (132).

4. The suction head assembly according to claim 3, characterized in that: The plurality of first suction holes (21) include two groups of first suction holes (21), and the two groups of first suction holes (21) are arranged at intervals and are symmetrical relative to the first mounting beam (131).

5. The suction head assembly according to claim 4, characterized in that: The first suction head (11) comprises an avoidance groove (111), the direction of the avoidance groove (111) is consistent with the direction of the first suction holes (21), and the avoidance groove (111) is located between two groups of the first suction holes (21).

6. The suction head assembly according to claim 4, characterized in that: The first suction head (11) comprises a first abutting surface (31), and the first suction hole (21) is arranged on the first abutting surface (31); The second suction head (12) comprises a second abutting surface (32), the second suction hole (22) is arranged on the second abutting surface (32), and the distance from the first abutting surface (31) to the body (13) is smaller than the distance from the second abutting surface (32) to the body (13).

7. The suction head assembly according to claim 6, characterized in that: The first suction head (11) comprises two first abutting surfaces (31), and the first abutting surface (31) and the second abutting surface (32) are both in the shape of strips; Two groups of the first suction holes (21) are respectively arranged on two of the first abutting surfaces (31); a plurality of the first suction holes (21) are arranged at intervals along the length direction of the first abutting surface (31); and a plurality of the second suction holes (22) are arranged at intervals along the length direction of the corresponding second abutting surface (32).

8. The suction head assembly according to claim 3, characterized in that: The suction head assembly comprises: an elastic portion (4); and The driving part (5) is arranged on a side of the main body (13) away from the first suction head (11) and is elastically connected to the main body (13) through the elastic part (4), and when the picking part (1) and the workpiece (A) are in abutment state, the elastic part (4) has an elastic deformation amount.

9. The suction head assembly according to claim 8, characterized in that: The driving part (5) comprises a main air channel (51), and the picking part (1) comprises a branch air channel (14); the main air channel (51) is connected to the plurality of first suction holes (21) and the plurality of second suction holes (22) simultaneously through the branch air channel (14).

10. The suction head assembly according to claim 9, characterized in that: The driving part (5) comprises two positioning bodies (52) and a telescopic rod (53), the telescopic rod (53) comprises a portion of the main airway (51), the elastic part (4) is a compression spring, the compression spring is sleeved on the telescopic rod (53) and the two ends of the compression spring are in contact with the two positioning bodies (52); The picking portion (1) and the workpiece (A) are in abutment with each other, the two positioning bodies (52) are close to each other, and part of the telescopic rod (53) extends into the main body (13).

11. The suction head assembly according to any one of claims 1 to 10, characterized in that: The material of the first suction head (11) is aluminum, and the material of the second suction head (12) is polyetheretherketone.

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