Vacuum suction device capable of quickly replacing suction head

Abstract

The utility model discloses a vacuum suction device capable of quickly replacing a suction head. The vacuum suction device comprises a fixed seat, the suction head, a sliding piece and an elastic piece, a mounting cavity is formed in the fixed seat, the sliding part is axially arranged in the mounting cavity in a sliding mode, a lower opening allowing the lower end of the sliding part to stretch out and draw back is formed in the mounting cavity, and the elastic part is axially connected between the fixed seat and the upper end of the sliding part in an abutting mode; a first magnetic part is arranged at the upper end of the suction head, a second magnetic part is arranged at the lower end of the sliding part, and the suction head and the sliding part attract each other through magnetic attraction force or are separated when the magnetic attraction force fails; vacuum channels which are communicated with each other are arranged on the suction head and the sliding piece, and the vacuum channels are connected with a vacuum source, so that a suction source is provided for the suction head. The suction head of the device can be quickly replaced and is provided with an independent buffering mechanism, so that the time of equipment shutdown caused by replacement of the vacuum suction head can be shortened, and the sealing performance and stability of the suction head in the working process can be ensured through effective buffering of a spring structure.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum suction, in particular to a vacuum suction device with a suction head that can be quickly disassembled. Background Art

[0002] In the fields of industrial automation and precision manufacturing, as a key component, the vacuum suction device is widely used in multiple links such as material handling, product assembly, and quality inspection. The suction head design on traditional vacuum suction devices often adopts an integral structure. Although this design ensures a certain degree of structural compactness and manufacturing simplicity to a certain extent, many drawbacks are exposed in the actual use process. Especially when the suction head needs to be replaced due to wear, blockage, or to adapt to workpieces of different sizes, the entire suction head must be removed and reinstalled as a whole. This process is not only time-consuming and laborious but also greatly increases the equipment downtime and reduces the production efficiency.

[0003] In addition, the traditional suction head lacks a buffering mechanism. As a result, during the suction process, especially when facing an uneven surface or a lateral force, it is difficult to ensure the sealing between the suction head and the workpiece, and air leakage is likely to occur, which in turn affects the stability and reliability of the suction. Air leakage not only reduces the suction efficiency but may also cause the workpiece to fall off due to insufficient suction force, resulting in production accidents or product damage.

[0004] In view of the above problems, a vacuum suction device with a more reasonable design and more convenient maintenance is needed. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a vacuum suction device with a suction head that can be quickly replaced. The vacuum suction head can be quickly replaced and has an independent buffering mechanism, which can not only shorten the equipment downtime caused by replacing the vacuum suction head but also ensure the sealing and stability of the suction head during the working process through the effective buffering of the spring structure.

[0006] To achieve the above object, the solution of the utility model is: a vacuum suction device with a suction head that can be quickly replaced, including a fixed seat, a suction head, a sliding member, and an elastic member;

[0007] An installation cavity is provided on the fixed seat. The sliding member is axially slidably arranged in the installation cavity. The installation cavity is provided with a lower opening for the lower end of the sliding member to expand and contract. The elastic member is axially abutted between the fixed seat and the upper end of the sliding member;

[0008] A first magnetic attraction part is provided at the upper end of the suction head, and a second magnetic attraction part is provided at the lower end of the sliding member. The suction head and the sliding member are mutually adsorbed by magnetic attraction or separated when the magnetic attraction fails;

[0009] Vacuum channels that communicate with each other are provided on both the suction head and the sliding member. The vacuum channels are connected to a vacuum source to provide a suction force source for the suction head.

[0010] Furthermore, the first magnetic attraction portion at the upper end of the suction head includes a plurality of first magnetic steels, and the second magnetic attraction portion at the lower end of the sliding member includes a plurality of second magnetic steels. The suction head and the sliding member are mutually adsorbed and connected through the magnetic attraction force of the first magnetic steels and the second magnetic steels. When the magnetic attraction force fails, the suction head is separated from the sliding member.

[0011] Furthermore, a concave cavity is provided at the connection between the suction head and the sliding member, and the sliding member is provided with a boss at a position corresponding to the concave cavity. When the suction head is connected to the sliding member, the boss is embedded in the concave cavity, and the vacuum channel passes through the concave cavity and the boss.

[0012] Furthermore, a limit groove is provided at the connection between the suction head and the sliding member, and the sliding member is provided with a limit key at a position corresponding to the limit groove, and the limit key is embedded in the limit groove to limit the circumferential rotation of the suction head relative to the sliding member.

[0013] Furthermore, the outer side wall of the sliding member radially extends to form a clearance block, and the side wall of the installation cavity is correspondingly provided with a clearance groove for the clearance block to slide.

[0014] Furthermore, a guide sleeve is axially fixed in the installation cavity, and the guide sleeve is arranged on the outer periphery of the lower end of the sliding member, the outer diameter of the upper end of the sliding member is larger than the outer diameter of the lower end, the inner diameter of the guide sleeve matches the outer diameter of the lower end of the sliding member, the upper end of the guide sleeve abuts against the connection between the upper and lower ends of the sliding member, and the outer diameter of the guide sleeve matches the inner wall of the installation cavity.

[0015] Furthermore, a baffle is provided at the lower opening of the mounting cavity on the fixing seat, and a through hole is opened on the baffle for the sliding member to extend and retract. The diameter of the through hole is smaller than the outer diameter of the guide sleeve, thereby limiting the guide sleeve from escaping from the lower opening of the mounting cavity.

[0016] Furthermore, the installation cavity also has an upper opening for the sliding member to enter and exit, and a cover plate is covered on the upper opening, and the elastic member abuts between the cover plate and the sliding member.

[0017] Furthermore, an upper abutting hole and a lower abutting hole are respectively formed on the cover plate and the sliding member at positions abutting against the elastic member, and the upper end and the lower end of the elastic member are respectively embedded in the corresponding abutting holes.

[0018] Furthermore, the fixing seat is provided with a plurality of installation cavities, each installation cavity has a sliding member, and each sliding member is respectively connected to a suction head.

[0019] After adopting the above scheme, the beneficial effects of the utility model are:

[0020] The utility model provides a vacuum suction head device that can be quickly replaced and has an independent spring structure. Through the magnetic attraction structure design, the quick detachable connection between the suction head and the fixed seat is realized, greatly simplifying the operation process of replacing the suction head. Users only need to perform simple operations to complete the replacement of the suction head, without complex tools or professional skills, significantly shortening the replacement time, improving work efficiency, reducing maintenance costs and equipment downtime, and bringing higher flexibility and continuity to enterprise production.

[0021] In addition, an independent spring structure (i.e., an elastic member) is ingeniously incorporated between each sliding member and the fixed seat. This design plays an effective buffering role during the operation of the suction head. It can effectively absorb and disperse the vibration and impact generated during the operation, prevent air leakage problems caused by external forces, and thus ensure the stable working performance of the vacuum suction head device in high-intensity or complex environments, improving the reliability and service life of the product. Brief Description of the Drawings

[0022] Figure 1 is a three-dimensional view of a vacuum suction device according to an embodiment of the utility model;

[0023] Figure 2 is a three-dimensional view of the suction head separation state of a vacuum suction device according to an embodiment of the utility model;

[0024] Figure 3 is an exploded view of the structure of a vacuum suction device according to an embodiment of the utility model;

[0025] Figure 4 is a three-dimensional structural schematic diagram of a sliding member according to an embodiment of the utility model;

[0026] Figure 5 is a three-dimensional structural schematic diagram of a suction head according to an embodiment of the utility model;

[0027] Figure 6 is a cross-sectional view (one) of a vacuum suction device according to an embodiment of the utility model;

[0028] Figure 7 is a cross-sectional view (two) of a vacuum suction device according to an embodiment of the utility model.

[0029] Label Description:

[0030] 1. Fixed seat; 11. Installation cavity; 12. Relief groove;

[0031] 2. Cover plate; 21. Upper abutting hole;

[0032] 3. Suction head; 31. First magnetic attraction part; 311. First magnet; 32. Limit groove; 33. First channel; 34. Suction port; 35. First contact platform; 36. Concave cavity;

[0033] 4. Sliding member; 41. Yielding block; 42. Second magnetic attraction part; 421. Second magnet; 43. Limit key; 44. Lower abutting hole; 45. Second channel; 46. Vacuum extraction port; 47. Second contact platform; 48. Boss

[0034] 5. Elastic member; 6. Guide sleeve; 7. Baffle; 71. Through hole Detailed implementation manner

[0035] The following describes the present utility model in detail with reference to the accompanying drawings and specific embodiments

[0036] The present utility model provides a vacuum suction device with a replaceable suction head quickly, as Figures 1 to 7 shown, which includes a fixed seat 1, a suction head 3, a sliding member 4 and an elastic member 5

[0037] With key reference to Figure 2 and Figure 6 , an installation cavity 11 is provided on the fixed seat 1, the sliding member 4 is slidably arranged in the installation cavity 11, the installation cavity 11 is provided with a lower opening, the lower end of the sliding member 4 can extend or retract from the lower opening into the installation cavity 11, and the lower end of the sliding member 4 is used to connect the suction head 3. Here, in order to prevent the sliding member 4 from unnecessary circumferential rotation in the installation cavity 11. In this design, a yielding block 41 is radially extended on the outer side wall of the sliding member 4, and a yielding groove 12 for the yielding block 41 to slide is correspondingly provided on the side wall of the installation cavity 11. When the sliding member 4 slides in the installation cavity 11, the yielding block 41 moves along the track of the yielding groove 12. This design effectively restricts the freedom degree of the sliding member 4 in the circumferential direction and avoids its rotation due to uneven force or external interference

[0038] The key of the present utility model lies in that: the suction head 3 and the sliding member 4 are detachably and replaceably connected through a magnetic attraction structure. As Figures 2 to 5 shown, a first magnetic attraction part 31 is provided at the upper end of the suction head 3, and a second magnetic attraction part 42 is provided at the lower end of the sliding member 4. When the suction head 3 approaches the sliding member 4, the magnetic attraction force between the two makes them tightly adsorbed together, forming a stable connection, ensuring the smooth progress of vacuum suction; and when it is necessary to replace the suction head 3, only an appropriate external force needs to be applied to pull out the suction head 3, so that the magnetic attraction force fails and the two are easily separated, which provides great convenience for replacing suction heads 3 of different specifications or types and meets the requirements of diverse working scenarios

[0039] In this embodiment, the magnetic attraction structures on the suction head 3 and the sliding member 4 both adopt the method of arranging permanent magnets. Specifically, the first magnetic attraction portion 31 at the upper end of the suction head 3 includes a plurality of first permanent magnets 311, and the first permanent magnets 311 are annularly and spacedly distributed on the suction head 3. Correspondingly, the second magnetic attraction portion 42 at the lower end of the sliding member 4 includes a plurality of second permanent magnets 421. The suction head 3 and the sliding member 4 are adsorbed and connected to each other through the magnetic attraction force of the first permanent magnets 311 and the second permanent magnets 421. When the magnetic attraction force fails, the suction head 3 is separated from the sliding member 4. Of course, other magnetic attraction structures can also be adopted here, and this case is not limited.

[0040] To limit the circumferential rotation of the suction head 3 relative to the sliding member 4. As Figure 2 shown, a limiting groove 32 is provided at the connection of the suction head 3 and the sliding member 4, and a limiting key 43 is provided at the position of the sliding member 4 corresponding to the limiting groove 32. The limiting key 43 is fitted and embedded in the limiting groove 32, which can simultaneously limit the circumferential rotation and radial movement of the suction head 3 relative to the sliding member 4.

[0041] The vacuum system of this suction device is as follows. As Figure 5 and Figure 1 shown, a first channel 33 and a suction port 34 communicating with the first channel 33 are provided inside the suction head 3, and the suction port 34 is used to directly adsorb the target object; as Figure 4 shown, a second channel 45 is provided inside the sliding member 4, and a vacuum extraction port 46 communicating with the second channel 45 is also provided on the sliding member 4. The vacuum extraction port 46 is used to connect a vacuum generator (not shown in the figure) to obtain the suction force source. When the suction head 3 is connected to the sliding member 4, the first channel 33 and the second channel 45 are automatically aligned and communicate with each other, forming a continuous and unobstructed vacuum channel. With the start of the vacuum generator, the suction force is transmitted to the suction head 3 through the vacuum extraction port 46 and the vacuum channel, enabling it to adsorb the target object, thereby achieving the stable adsorption and handling of the target object.

[0042] As Figure 5 and Figure 4 shown, the upper end surface of the suction head 3 is the first contact platform 35, the lower end surface of the sliding member 4 is the second contact platform 47, a boss 48 axially extends in the middle of the second contact platform 47 of the sliding member 4, and the second channel 45 passes through the boss 48; a concave cavity 36 is axially recessed in the middle of the first contact platform 35 of the suction head 3, and the first channel 33 passes through the concave cavity 36. When the suction head 3 is connected to the sliding member 4, the first contact platform 35 and the second contact platform 47 are closely attached, and at the same time, the boss 48 is fitted and embedded in the concave cavity 36, and the outer side wall of the boss 48 is closely matched with the inner side wall of the concave cavity 36, and the first channel 33 and the second channel 45 communicate. This Z-shaped structure can effectively improve the airtightness.

[0043] As Figure 6As shown, the elastic member 5 with a buffering function is located within the installation cavity 11 and axially abuts between the upper ends of the fixed seat 1 and the sliding member 4. This design can not only effectively buffer the impact force during the movement of the sliding member 4, ensuring the sealing performance and stability of the suction head 3 during operation, thereby significantly improving production efficiency and product quality. It can also ensure that the sliding member 4 automatically returns to its initial position without external force, improving the automation level and service life of the device. The elastic member 5 is preferably a return spring.

[0044] As Figure 6 shown, the outer diameter of the upper end of the sliding member 4 is greater than that of the lower end. To enable the smooth sliding of the sliding member 4 within the installation cavity 11. As Figure 3 shown, a guide sleeve 6 is axially fixed within the installation cavity 11. The guide sleeve 6 is sleeved on the outer periphery of the lower end of the sliding member 4. The inner diameter of the guide sleeve 6 matches the outer diameter of the lower end of the sliding member 4. The upper end of the guide sleeve 6 abuts against the connection between the upper and lower ends of the sliding member 4. The outer diameter of the guide sleeve 6 matches the inner side wall of the installation cavity 11. In this embodiment, the guide sleeve 6 is also designed to be a detachable structure. That is, the guide sleeve 6 can enter and exit the installation cavity 11 through the lower opening of the installation cavity 11. Then, in order to fix the guide sleeve 6, a baffle 7 is designed. As Figure 3 and Figure 6 shown, the baffle 7 is located at the lower opening of the installation cavity 11 of the fixed seat 1 and is connected and fixed to the fixed seat 1 through fasteners such as screws. A through hole 71 for the telescopic movement of the sliding member 4 is provided on the baffle 7. The diameter of the through hole 71 is smaller than the outer diameter of the guide sleeve 6. In this way, the guide sleeve 6 can be restricted from slipping out of the lower opening of the installation cavity 11.

[0045] In addition, to facilitate the assembly and disassembly of the sliding member 4, an upper opening is also provided in the installation cavity 11. The sliding member 4 can enter the installation cavity 11 through this upper opening. A cover plate 2 is covered at the upper opening. As Figure 1 shown, the cover plate 2 is fixed to the fixed seat 1 through fasteners such as screws, so as to prevent the sliding member 4 from slipping out of the installation cavity 11 through the upper opening. Correspondingly, the elastic member 5 abuts between the cover plate 2 and the sliding member 4. Specifically, an upper abutting hole 21 is provided on the cover plate 2, and a lower abutting hole 44 is provided at the upper end of the sliding member 4. The upper end of the elastic member 5 is embedded in the upper abutting hole 21, and the lower end of the elastic member 5 is embedded in the lower abutting hole 44 to prevent the elastic member 5 from shifting.

[0046] It should be noted that the vacuum suction device of the present utility model has multiple suction heads 3. As Figure 1 shown, a plurality of installation cavities 11 are provided on the fixed seat 1. Each installation cavity 11 has a sliding member 4, and each sliding member 4 is respectively connected to a suction head 3. In this way, when adsorbing the same product, it has a strong suction force, and different products can also be respectively sucked simultaneously.

[0047] To further illustrate the embodiments, the present utility model provides attached drawings. These attached drawings are part of the disclosure of the present utility model, mainly used to illustrate the embodiments, and can be combined with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0048] Meanwhile, the front, rear, left, right and other orientations involved in this embodiment are only for reference of an orientation and do not represent the orientation in actual use. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0049] The above are only the preferred embodiments of the present utility model and do not limit the design of this case. All equivalent changes made according to the key design of this case fall within the protection scope of this case.

Claims

1. A vacuum suction device capable of quickly replacing suction tips, characterized in that: It includes a fixed seat, a suction head, a sliding part and an elastic part; The fixing seat is provided with an installation cavity, the sliding member is axially slidably arranged in the installation cavity, the installation cavity is provided with a lower opening for the lower end of the sliding member to extend and retract, and the elastic member is axially abutted between the fixing seat and the upper end of the sliding member; The upper end of the suction head is provided with a first magnetic attraction portion, and the lower end of the sliding member is provided with a second magnetic attraction portion, and the suction head and the sliding member are mutually attracted by magnetic attraction or separated when the magnetic attraction fails; The suction head and the sliding member are both provided with interconnected vacuum channels, and the vacuum channels are connected to a vacuum source, thereby providing a suction source for the suction head.

2. A vacuum suction device with a quick replaceable suction head as claimed in claim 1, characterized in that: The first magnetic attraction portion at the upper end of the suction head includes a plurality of first magnetic steels, and the second magnetic attraction portion at the lower end of the sliding member includes a plurality of second magnetic steels. The suction head and the sliding member are mutually adsorbed and connected by the magnetic attraction force of the first magnetic steels and the second magnetic steels. When the magnetic attraction force fails, the suction head is separated from the sliding member.

3. A vacuum suction device with a quick replaceable suction head as claimed in claim 1, characterized in that: A concave cavity is provided at the connection between the suction head and the sliding member, and a boss is provided on the sliding member at a position corresponding to the concave cavity. When the suction head is connected to the sliding member, the boss is embedded in the concave cavity, and the vacuum channel passes through the concave cavity and the boss.

4. A vacuum suction device with a quick replaceable suction head as claimed in claim 1, characterized in that: A limiting groove is provided at the connection between the suction head and the sliding member, and the sliding member is provided with a limiting key at a position corresponding to the limiting groove. The limiting key is embedded in the limiting groove to limit the circumferential rotation of the suction head relative to the sliding member.

5. A vacuum suction device with a quick replaceable suction head as claimed in claim 1, characterized in that: The outer side wall of the sliding member radially extends to form a clearance block, and the side wall of the installation cavity is correspondingly provided with a clearance groove for the clearance block to slide.

6. A vacuum suction device with a quick replaceable suction head as claimed in claim 1, characterized in that: A guide sleeve is axially fixed in the installation cavity, and the guide sleeve is arranged on the outer periphery of the lower end of the sliding member. The outer diameter of the upper end of the sliding member is larger than the outer diameter of the lower end. The inner diameter of the guide sleeve matches the outer diameter of the lower end of the sliding member. The upper end of the guide sleeve abuts against the connection between the upper and lower ends of the sliding member, and the outer diameter of the guide sleeve matches the inner wall of the installation cavity.

7. A vacuum suction device with a quick replaceable suction head as claimed in claim 1, characterized in that: A baffle is provided at the lower opening of the mounting cavity on the fixing seat. A through hole is provided on the baffle for the sliding member to extend and retract. The diameter of the through hole is smaller than the outer diameter of the guide sleeve, thereby limiting the guide sleeve from escaping from the lower opening of the mounting cavity.

8. A vacuum suction device with a quick replaceable suction head as claimed in claim 1, characterized in that: The installation cavity also has an upper opening for the sliding member to enter and exit, and a cover plate is covered on the upper opening, and the elastic member abuts between the cover plate and the sliding member.

9. A vacuum suction device with a quick replaceable suction head as claimed in claim 8, characterized in that: An upper abutting hole and a lower abutting hole are respectively formed on the cover plate and the sliding member at positions abutting against the elastic member, and the upper end and the lower end of the elastic member are respectively embedded in the corresponding abutting holes.

10. A vacuum suction device with a quick replaceable suction head as claimed in claim 1, characterized in that: The fixing seat is provided with a plurality of installation cavities, each of which has a sliding member in it, and each sliding member is respectively connected with a suction head.

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