Vacuum grabbing suction cup

Abstract

The utility model provides a vacuum grabbing suction cup, and mainly relates to the technical field of vacuum suction cups. A vacuum grabbing suction cup comprises a top plate, the bottom of the top plate is fixedly connected with a lifting device, the bottom of the lifting device is fixedly connected with a bottom plate, the bottom of the bottom plate is fixedly connected with a suction cup frame, a negative pressure suction structure is fixedly installed at the bottom of the suction cup frame, and a negative pressure pipeline is fixedly installed in the suction cup frame. Compared with the prior art, the suction cup has the advantages that due to the design of the negative pressure suction structure, each negative pressure hole rapidly pumps away gas in the corresponding turning-back groove to manufacture a negative pressure area, each turning-back groove corresponds to the first through holes and the second through holes, during negative pressure suction, the negative pressure uniformity of the suction face of the suction cup can be effectively improved, and the suction efficiency of the suction cup is improved. And meanwhile, excessive negative pressure holes and corresponding negative pressure pipelines do not need to be designed, when a plurality of objects with small areas are grabbed, the problem that vacuum pressures in the through holes in the adjacent areas interfere with one another can be effectively solved, and the grabbing stability is improved.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of vacuum suction cups, in particular to a vacuum grabbing suction cup. Background Art

[0002] The existing vacuum gripping suction cups are commonly used in industrial production to achieve palletizing. In order to grasp products of different sizes, the sizes of vacuum suction cups vary greatly. Vacuum suction cups with larger adsorption areas are usually more widely used. For objects with larger and flatter surfaces, vacuum suction cups can easily grasp them stably. However, if you want to grasp some objects with smaller surface areas at the same time, if the negative pressure on the suction cup surface is unevenly distributed, it is easy to cause some grasped objects to fall off.

[0003] Some existing vacuum suction cups use an integral negative pressure chamber. The advantage of this type of suction cup is that the negative pressure suction is uniform overall. However, when grasping objects with a small surface area, if some air inlets are not covered by the grasped objects, it will affect the suction in other areas, and there may be uneven suction. Utility Model Content

[0004] In order to solve the deficiencies of the prior art, the utility model provides a vacuum grabbing suction cup, which can effectively improve the stability of the vacuum grabbing suction cup when grabbing a number of relatively small objects.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical solutions:

[0006] A vacuum grabbing suction cup comprises a top plate, the bottom of the top plate is fixedly connected to a lifting device, the bottom of the lifting device is fixedly connected to a bottom plate, the bottom of the bottom plate is fixedly connected to a suction cup frame, the bottom of the suction cup frame is fixedly installed with a negative pressure suction structure, and a negative pressure pipeline is fixedly installed in the suction cup frame.

[0007] The lifting device includes an upper frame, a slide rail is fixedly installed on the inner side of the upper frame, a plurality of slide seats are slidably installed on the slide rail, the slide seat is fixedly connected to the lower frame, the bottom of the lower frame is fixedly connected to the base plate, a driving motor is fixedly installed on the lower frame, a driving gear is installed on the outer end of the driving motor shaft passing through the lower frame, and a rack is fixedly installed on the upper frame, and the driving gear is meshed with the rack.

[0008] The suction cup frame includes a connecting plate, which is fixedly connected to the bottom plate, and support plates are fixedly connected to both sides of the connecting plate. A reinforcing plate is fixedly installed between the support plate and the connecting plate, and side plates are symmetrically fixedly installed on both sides of the support plate. A negative pressure suction structure is fixedly installed on the inner side of the reinforcing plate and the side plate.

[0009] The negative pressure suction structure includes an upper plate, a middle plate, and a lower plate. The upper plate is provided with a plurality of penetrating negative pressure holes, the bottom of the upper plate is provided with a plurality of folding grooves at equal intervals, each of the negative pressure holes is connected to a folding groove, the middle plate is provided with a plurality of through holes 1 at equal intervals, and the lower plate is provided with a plurality of through holes 2 at equal intervals.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model can, through the structural design of the upper plate, the middle plate and the lower plate in the negative pressure suction structure, each negative pressure hole can quickly draw away the gas in the corresponding folding groove to create a negative pressure area, and each folding groove corresponds to a plurality of through holes one and through holes two. During negative pressure suction, the negative pressure uniformity of the suction surface of the suction cup can be effectively improved. At the same time, there is no need to design too many negative pressure holes and corresponding negative pressure pipelines. When grabbing a number of smaller items, it can also effectively avoid the problem of mutual interference of vacuum pressures in the through holes in adjacent areas, thereby improving the grabbing stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the internal structure of the upper frame of the utility model;

[0014] Figure 3 This is a schematic diagram of the external structure of the lower frame of the utility model;

[0015] Figure 4 This is a schematic diagram of the upper perspective structure of the negative pressure suction structure of the utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the negative pressure suction structure of the utility model from the lower perspective;

[0017] Figure 6 It is a schematic diagram of the bottom structure of the upper plate of the utility model;

[0018] Figure 7 It is a schematic diagram of the upper structure of the upper plate of the utility model;

[0019] Figure 8 This is a schematic diagram of the structure of the intermediate plate of the utility model;

[0020] Fig. 9 It is a schematic diagram of the structure of the lower plate of the utility model.

[0021] Numbers shown in the accompanying drawings: 1. top plate; 2. lifting device; 3. bottom plate; 4. suction cup frame; 5. negative pressure suction structure; 21. upper frame; 22. slide rail; 23. slide seat; 24. lower frame; 25. drive motor; 26. drive gear; 27. rack; 41. connecting plate; 42. support plate; 43. reinforcement plate; 44. side plate; 51. upper plate; 52. middle plate; 53. lower plate; 510. negative pressure hole; 511. folding groove; 520. through hole one; 530. through hole two. DETAILED DESCRIPTION

[0022] The utility model is further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by this application.

[0023] Combined with Figure 1-9 A vacuum grabbing suction cup comprises a top plate 1, the bottom of the top plate 1 is fixedly connected to a lifting device 2, the bottom of the lifting device 2 is fixedly connected to a bottom plate 3, the bottom of the bottom plate 3 is fixedly connected to a suction cup frame 4, the bottom of the suction cup frame 4 is fixedly installed with a negative pressure suction structure 5, and a negative pressure pipeline is fixedly installed in the suction cup frame 4.

[0024] The lifting device 2 includes an upper frame 21, a slide rail 22 is fixedly installed on the inner side of the upper frame 21, a plurality of slide seats 23 are slidably installed on the slide rail 22, the slide seat 23 is fixedly connected to a lower frame 24, the bottom of the lower frame 24 is fixedly connected to the bottom plate 3, a driving motor 25 is fixedly installed on the lower frame 24, a rotating shaft of the driving motor 25 passes through the outer end of the lower frame 24 and a driving gear 26 is installed, a rack 27 is fixedly installed on the upper frame 21, and the driving gear 26 is meshed with the rack 27.

[0025] The suction cup frame 4 includes a connecting plate 41, which is fixedly connected to the bottom plate 3. Support plates 42 are fixedly connected to both sides of the connecting plate 41. A reinforcing plate 43 is fixedly installed between the support plate 42 and the connecting plate 41. Side plates 44 are symmetrically fixedly installed on both sides of the support plate 42. Negative pressure suction structures 5 are fixedly installed on the inner sides of the reinforcing plates 43 and the side plates 44.

[0026] The negative pressure suction structure 5 includes an upper plate 51, an intermediate plate 52, and a lower plate 53. The upper plate 51 is provided with a plurality of penetrating negative pressure holes 510. The bottom of the upper plate 51 is provided with a plurality of folding grooves 511 at equal intervals. Each of the negative pressure holes 510 is connected to a folding groove 511. The intermediate plate 52 is provided with a plurality of through holes 1 520 at equal intervals. The lower plate 53 is provided with a plurality of through holes 2 530 at equal intervals. The through holes 2 530 correspond one to one with the through holes 1 520.

[0027] The top plate 1 has four bottom corners fixedly mounted with slide seats, and the top plate 1 can be driven by a corresponding driving structure to make the entire device move laterally.

[0028] The side plate 44 is provided with a plurality of circular holes at equal intervals for passing and fixing a negative pressure pipeline, which is connected to the negative pressure hole 510 of the upper plate 51 . The vacuum pressure in the negative pressure pipeline comes from a vacuum pump, which is arranged on a mechanism for driving the device to move.

[0029] The upper plate 51, the middle plate 52 and the lower plate 53 in the negative pressure suction structure 5 are provided with bolt holes on their peripheries, and are fixedly installed on the bottom of the suction cup frame 4 by means of bolts passing through them; the lower plate 53 is relatively thin, and when the surface of the vacuum grabbing suction cup that contacts the object is worn after long-term use, it can be replaced with a new lower plate 53.

[0030] Through the structural design of the present solution, each negative pressure hole 510 will quickly draw out the gas in the corresponding folding groove 511 to create a negative pressure area. Each folding groove 511 corresponds to a number of through holes 1 520 and through holes 2 530. During negative pressure suction, the negative pressure uniformity of the suction surface of the suction cup can be effectively improved. At the same time, there is no need to design too many negative pressure holes 510 and corresponding negative pressure pipelines. When grasping a number of smaller objects, the problem of mutual interference of vacuum pressures in the through holes in adjacent areas can also be effectively avoided, thereby improving the grasping stability.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A vacuum gripping suction cup, comprising a top plate (1), characterized in that: The bottom of the top plate (1) is fixedly connected to the lifting device (2), the bottom of the lifting device (2) is fixedly connected to the bottom plate (3), the bottom of the bottom plate (3) is fixedly connected to a suction cup frame (4), the bottom of the suction cup frame (4) is fixedly installed with a negative pressure suction structure (5), and a negative pressure pipeline is fixedly installed in the suction cup frame (4).

2. A vacuum gripping suction cup according to claim 1, characterized in that: The lifting device (2) comprises an upper frame (21), a slide rail (22) is fixedly mounted on the inner side of the upper frame (21), a plurality of slide seats (23) are slidably mounted on the slide rail (22), the slide seats (23) are fixedly connected to a lower frame (24), the bottom of the lower frame (24) is fixedly connected to a bottom plate (3), a drive motor (25) is fixedly mounted on the lower frame (24), a rotating shaft of the drive motor (25) passes through the lower frame (24), a drive gear (26) is mounted on the outer end thereof, a rack (27) is fixedly mounted on the upper frame (21), and the drive gear (26) is meshed with the rack (27).

3. A vacuum gripping suction cup according to claim 1, characterized in that: The suction cup frame (4) comprises a connecting plate (41), the connecting plate (41) being fixedly connected to the bottom plate (3), support plates (42) being fixedly connected to both sides of the connecting plate (41), a reinforcing plate (43) being fixedly installed between the support plate (42) and the connecting plate (41), side plates (44) being symmetrically fixedly installed on both sides of the support plate (42), and a negative pressure suction structure (5) being fixedly installed on the inner sides of the reinforcing plate (43) and the side plates (44).

4. A vacuum gripping suction cup according to claim 1, characterized in that: The negative pressure suction structure (5) comprises an upper plate (51), an intermediate plate (52), and a lower plate (53); the upper plate (51) is provided with a plurality of penetrating negative pressure holes (510); the bottom of the upper plate (51) is provided with a plurality of folding grooves (511) at equal intervals, each of the negative pressure holes (510) is connected to a folding groove (511); the intermediate plate (52) is provided with a plurality of through holes 1 (520) at equal intervals; and the lower plate (53) is provided with a plurality of through holes 2 (530) at equal intervals.

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