Vacuum adsorption adjusting device

Abstract

The invention relates to the technical field of vacuum adsorption, in particular to a vacuum adsorption adjusting device. The vacuum adsorption adjusting device comprises a vacuum shell, a piston assembly and a driving assembly, the vacuum shell is provided with a vacuum cavity and an adsorption hole, the adsorption hole is communicated with the vacuum cavity, the piston assembly is arranged in the vacuum cavity, the piston assembly and the vacuum shell jointly form an effective vacuum space, and the driving assembly comprises a driving mechanism and a line body. The line body is connected with the driving mechanism, the piston assembly is arranged on the line body, and the driving assembly can drive the line body to adjust the position of the piston assembly so as to adjust the size of an effective vacuum space, so that the size of a vacuum adsorption area is adjusted. According to the vacuum adsorption adjusting device, high-negative-pressure, accurate and smooth stepless adjustment can be achieved, the vacuum adsorption adjusting device is simple in structure and easy to manufacture and maintain, the equipment cost and the maintenance difficulty are reduced, wide application in the fields of industrial production and the like is facilitated, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum adsorption, and in particular to a vacuum adsorption adjustment device. Background Art

[0002] In existing vacuum adsorption application scenarios, such as the adsorption and handling of workpieces with different sizes on an industrial automation production line, or the grasping of precision components in electronic device manufacturing, etc., it is often necessary to flexibly adjust the size of the vacuum adsorption area according to the size change of the actual operation object.

[0003] However, for currently common vacuum adsorption adjustment devices, the adjustment methods of their adsorption areas are mostly limited. Usually, only stepped adjustment can be performed, and it is difficult to achieve continuous and precise stepless adjustment. This leads to the inability to efficiently and stably complete the adsorption task when facing diverse work requirements, affecting production efficiency and product quality.

[0004] Some existing vacuum adsorption adjustment devices can achieve continuous and precise stepless adjustment, such as a screw-type vacuum adsorption adjustment device and an internal and external magnetic ring type vacuum adsorption adjustment device. However, both of these two vacuum adsorption adjustment devices have their own limitations. For example, in the screw-type vacuum adsorption adjustment device, due to the gaps in the thread fit, the screw-type vacuum adsorption adjustment device is prone to air leakage and has a low negative pressure value; the internal and external magnetic ring type vacuum adsorption adjustment device has an internal magnetic ring and an external magnetic ring, and the internal magnetic ring and the external magnetic ring are prone to demagnetization and misalignment, resulting in unsmooth stepless adjustment.

[0005] Therefore, there is an urgent need to design a new vacuum adsorption adjustment device to improve the problem that the vacuum adsorption adjustment device cannot achieve high negative pressure, precise and smooth stepless adjustment. Summary of the Invention

[0006] The purpose of the present invention is to provide a vacuum adsorption adjustment device that can achieve high negative pressure, precise and smooth stepless adjustment.

[0007] To achieve this purpose, the present invention adopts the following technical solutions:

[0008] A vacuum adsorption adjustment device includes:

[0009] A vacuum housing having a vacuum cavity and provided with adsorption holes, and the adsorption holes are communicated with the vacuum cavity;

[0010] A piston assembly disposed in the vacuum cavity, and the piston assembly and the vacuum housing together form an effective vacuum space; and

[0011] The driving assembly includes a driving mechanism and a wire body. The wire body is connected to the driving mechanism. The piston assembly is disposed on the wire body. The driving assembly can drive the wire body to adjust the position of the piston assembly so as to adjust the size of the effective vacuum space.

[0012] As an alternative solution, the piston assembly includes a first piston and a second piston. The first piston and the second piston are respectively disposed on the wire bodies of the corresponding driving assemblies. The first piston and the second piston are arranged at intervals along a first preset direction. The vacuum housing, the first piston, and the second piston together form the effective vacuum space.

[0013] As an alternative solution, the driving mechanism includes a release end and a winding end. The wire body includes a first end and a second end. The first end is connected to the release end, and the second end is connected to the winding end.

[0014] As an alternative solution, the driving assembly further includes a commutation member. The wire body passes through the commutation member and changes direction. The release end and the winding end are coaxially fixed. The winding direction of the wire body with the release end is a first winding direction, and the winding direction of the wire body with the winding end is a second winding direction. The helix directions of the first winding direction and the second winding direction are opposite.

[0015] As an alternative solution, a through commutation channel is formed in the commutation member, and the wire body is inserted into the commutation channel; and / or

[0016] The commutation member is inserted into the vacuum housing, and the commutation member is made of an elastically deformable material.

[0017] As an alternative solution, the commutation channel includes a first introduction section, a communication section, and a second introduction section that are arranged along a second preset direction and are connected. The cross-sectional area of the first introduction section gradually decreases along the second preset direction, and the cross-sectional area of the second introduction section gradually increases along the second preset direction; and / or

[0018] The vacuum adsorption adjustment device further includes a sealing member. A receiving groove and a through hole that are communicated are further provided on the sealing member. Part of the commutation member is inserted into the receiving groove, and the commutation channel is communicated with the through hole.

[0019] As an alternative solution, a guiding groove is further formed in the sealing member. The guiding groove is communicated with the through hole, and at least part of the wire body is received in the guiding groove; and / or

[0020] The vacuum adsorption adjustment device further includes a fixing member that connects the sealing member to the vacuum housing; and / or

[0021] The cross-sectional shape of the accommodation groove is circular or non-circular; and / or

[0022] The cross-sectional area of the perforation gradually increases along the second preset direction; and / or

[0023] The vacuum adsorption adjustment device further includes a vacuum connector, the vacuum connector is inserted into the vacuum housing and communicated with the vacuum cavity, an avoidance groove is formed in the seal, and at least part of the vacuum connector is accommodated in the avoidance groove.

[0024] As an optional solution, the driving mechanism further includes a base and a rotary driving member, the release end and the winding end are rotatably connected to the base, the rotary driving member is connected to the release end or the winding end, and the rotary driving member can drive the release end and the winding end to rotate synchronously; and / or

[0025] The wire body includes a first sub-wire body and a second sub-wire body, the first sub-wire body includes the first end and the third end, the third end is detachably connected to the piston assembly, the second sub-wire body includes the second end and the fourth end, and the fourth end is detachably connected to the piston assembly.

[0026] As an optional solution, the piston assembly includes:

[0027] A piston body disposed in the vacuum housing; and

[0028] A sealing body disposed on the outer periphery of the piston body, and the sealing body abuts against the inner wall of the vacuum housing.

[0029] As an optional solution, at least two sealing bodies are provided, and at least two sealing bodies are arranged at intervals along the first preset direction; and / or

[0030] The sealing body is a ring structure; and / or

[0031] The sealing body is an elastically deformable structure.

[0032] Advantages of the present invention:

[0033] The present invention provides a vacuum adsorption adjustment device, which includes a vacuum housing, a piston assembly and a driving assembly. Among them, the vacuum housing has a vacuum cavity and is provided with an adsorption hole, the adsorption hole is communicated with the vacuum cavity, the piston assembly is disposed in the vacuum cavity, the piston assembly and the vacuum housing together form an effective vacuum space, the driving assembly includes a driving mechanism and a wire body, the wire body is connected to the driving mechanism, the piston assembly is disposed on the wire body, and the driving assembly can drive the wire body to adjust the position of the piston assembly to adjust the size of the effective vacuum space, so as to adjust the size of the vacuum adsorption area.

[0034] Compared with the screw-type vacuum adsorption adjustment device, since there are no gaps formed by screw fits, this vacuum adsorption adjustment device is not prone to air leakage and has a relatively high negative pressure value. The vacuum adsorption adjustment device has a better adsorption effect on the actual operation object.

[0035] Compared with the internal and external magnetic ring type vacuum adsorption adjustment device, this vacuum adsorption adjustment device eliminates the internal magnetic ring and the external magnetic ring. Each part of the vacuum adsorption adjustment device is not prone to demagnetization and misalignment, and can ensure smooth and precise stepless adjustment of the vacuum adsorption adjustment device.

[0036] This vacuum adsorption adjustment device has a simple structure, is easy to manufacture and maintain, reduces equipment costs and maintenance difficulties, is conducive to wide application in industrial production and other fields, and improves production efficiency and product quality.

[0037] In summary, this vacuum adsorption adjustment device can achieve high negative pressure, precise and smooth stepless adjustment. In addition, the vacuum adsorption adjustment device has a simple structure, is easy to manufacture and maintain, reduces equipment costs and maintenance difficulties, is conducive to wide application in industrial production and other fields, and improves production efficiency and product quality. Description of the Drawings

[0038] Figure 1 is the first structural schematic diagram of the vacuum adsorption adjustment device provided by the embodiment of the present invention;

[0039] Figure 2 is the first cross-sectional view of the vacuum adsorption adjustment device provided by the embodiment of the present invention;

[0040] Figure 3 is the second cross-sectional view of the vacuum adsorption adjustment device provided by the embodiment of the present invention;

[0041] Figure 4 is the second structural schematic diagram of the vacuum adsorption adjustment device provided by the embodiment of the present invention;

[0042] Figure 5 is the structural schematic diagram of the commutator provided by the embodiment of the present invention.

[0043] In the figure:

[0044] 100. Vacuum adsorption adjustment device;

[0045] 10. Vacuum housing; 11. Vacuum cavity; 111. Effective vacuum space; 12. Adsorption hole;

[0046] 20. Piston assembly; 21. First piston; 211. First piston body; 2111. First connecting portion; 2112. First connecting hole; 212. First seal; 22. Second piston; 221. Second piston body; 2211. Second connecting portion; 2212. Second connecting hole; 222. Second seal;

[0047] 30. Driving assembly; 31. Driving mechanism; 311. Release end; 312. Rewinding end; 313. Base; 314. Rotary driving member; 32. Wire body; 321. First sub-wire body; 3211. First end; 3212. Third end; 322. Second sub-wire body; 3221. Second end; 3222. Fourth end; 33. Commutator; 331. Commutation channel; 3311. First introduction section; 3312. Connecting section; 3313. Second introduction section;

[0048] 40. Seal; 41. Accommodating groove; 42. Perforation; 43. Guide groove; 44. Avoidance groove;

[0049] 50. Fixing member;

[0050] 60. Vacuum connector. Detailed implementation manners

[0051] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and implementation manners. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the convenience of description, only the parts related to the present invention are shown in the drawings, rather than all of them.

[0052] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0053] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0054] In the description of the embodiments of the present disclosure, the orientation or positional relationships such as "upper", "lower", "left" and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0055] In existing vacuum adsorption application scenarios, such as the adsorption and handling of workpieces with different sizes on an industrial automation production line, or the grasping of precision components in the manufacture of electronic devices, etc., it is often necessary to flexibly adjust the size of the vacuum adsorption area according to the size change of the actual operation object.

[0056] However, in currently common vacuum adsorption adjustment devices, the adjustment methods of their adsorption areas are mostly rather limited. Usually, only stepped adjustment can be performed, and it is difficult to achieve continuous and precise stepless adjustment. This results in the inability to efficiently and stably complete the adsorption task when facing diverse work requirements, affecting production efficiency and product quality.

[0057] Some existing vacuum adsorption adjustment devices can achieve continuous and precise stepless adjustment, such as screw-type vacuum adsorption adjustment devices and internal and external magnetic ring-type vacuum adsorption adjustment devices. However, both of these two vacuum adsorption adjustment devices have their own limitations. For example, in a screw-type vacuum adsorption adjustment device, due to the gaps in the screw thread fit, the screw-type vacuum adsorption adjustment device is prone to air leakage and has a low negative pressure value; the internal and external magnetic ring-type vacuum adsorption adjustment device has an internal magnetic ring and an external magnetic ring, and the internal magnetic ring and the external magnetic ring are prone to demagnetization and misalignment, resulting in unsmooth stepless adjustment.

[0058] To solve the above problems, as Figures 1 to 2As shown in the figure, an embodiment of the present disclosure provides a vacuum adsorption adjustment device 100. The vacuum adsorption adjustment device 100 includes a vacuum housing 10, a piston assembly 20, and a driving assembly 30. Among them, the vacuum housing 10 has a vacuum cavity 11 and is provided with an adsorption hole 12. The adsorption hole 12 communicates with the vacuum cavity 11. The piston assembly 20 is disposed in the vacuum cavity 11. The piston assembly 20 and the vacuum housing 10 together form an effective vacuum space 111. The driving assembly 30 includes a driving mechanism 31 and a wire body 32. The wire body 32 is connected to the driving mechanism 31. The piston assembly 20 is disposed on the wire body 32. The driving assembly 30 can drive the wire body 32 to adjust the position of the piston assembly 20 so as to adjust the size of the effective vacuum space 111, thereby adjusting the size of the vacuum adsorption area.

[0059] Compared with the screw-type vacuum adsorption adjustment device, the vacuum adsorption adjustment device 100 of the embodiment of the present disclosure is not prone to air leakage and has a relatively high negative pressure value because there is no gap formed by screw fitting. The vacuum adsorption adjustment device 100 has a better adsorption property for the actual operation object.

[0060] In addition, compared with the internal and external magnetic ring type vacuum adsorption adjustment device, the vacuum adsorption adjustment device 100 of the embodiment of the present disclosure eliminates the internal magnetic ring and the external magnetic ring. Each part of the vacuum adsorption adjustment device 100 is not prone to demagnetization and misalignment, and can ensure smooth and accurate stepless adjustment of the vacuum adsorption adjustment device 100.

[0061] In addition, the vacuum adsorption adjustment device 100 of the embodiment of the present disclosure has a simple structure, is easy to manufacture and maintain, reduces the equipment cost and the maintenance difficulty, is conducive to wide application in industrial production and other fields, and improves the production efficiency and the product quality.

[0062] In summary, the vacuum adsorption adjustment device 100 of the embodiment of the present disclosure can achieve high negative pressure, accurate and smooth stepless adjustment. In addition, the vacuum adsorption adjustment device 100 has a simple structure, is easy to manufacture and maintain, reduces the equipment cost and the maintenance difficulty, is conducive to wide application in industrial production and other fields, and improves the production efficiency and the product quality.

[0063] Exemplarily, the wire body 32 of the embodiment of the present disclosure can be a nylon rope, a metal wire body, a steel wire rope, etc. All linear structures that can be connected to the driving mechanism 31 and the piston assembly 20 are within the protection scope of the embodiment of the present disclosure.

[0064] It should be noted that during the adjustment process of the vacuum adsorption adjustment device 100, parameters such as the effective vacuum space 111 and the vacuum degree can be monitored in real time through devices such as sensors to ensure the accuracy and stability of the adjustment.

[0065] As an optional embodiment, such as Figure 1 andFigure 2 As shown, the piston assembly 20 includes a first piston 21 and a second piston 22. The first piston 21 and the second piston 22 are respectively disposed on the wire bodies 32 of the corresponding drive assemblies 30. The first piston 21 and the second piston 22 are arranged at intervals along a first preset direction. The vacuum housing 10, the first piston 21 and the second piston 22 together form an effective vacuum space 111. By simultaneously arranging the first piston 21 and the second piston 22 and adjusting at least one of the first piston 21 and the second piston 22, the formation of vacuum adsorption areas with more different positions and sizes can be realized. The use of the vacuum adsorption adjustment device 100 in the embodiments of the present disclosure is more flexible and diversified, and can achieve better coordination and adaptation to different scenarios.

[0066] In addition, if the first piston 21 and the second piston 22 are adjusted simultaneously, rapid adjustment of the corresponding vacuum adsorption area can be achieved.

[0067] Specifically, as Figure 1 and Figure 2 shown, when at least one of the first piston 21 and the second piston 22 moves, the adjustment of the effective vacuum space 111 and the corresponding vacuum adsorption area can be realized. Among them, the first piston 21 and the second piston 22 move away from each other to increase the effective vacuum space 111 and the corresponding vacuum adsorption area; the first piston 21 and the second piston 22 move closer to each other to decrease the effective vacuum space 111 and the corresponding vacuum adsorption area.

[0068] As an optional embodiment, as Figure 2 shown, the first piston 21 includes a first piston body 211 and a first seal 212. Among them, the first piston body 211 is disposed in the vacuum housing 10, and the first seal 212 is provided on the outer periphery of the first piston body 211. The first seal 212 abuts against the inner wall of the vacuum housing 10. By providing the first seal 212, the air leakage of the vacuum adsorption adjustment device 100 can be further avoided, ensuring a higher negative pressure value inside the vacuum adsorption adjustment device 100 and realizing better adsorption of the vacuum adsorption adjustment device 100 to the actual operation object.

[0069] As an optional embodiment, as Figure 2 shown, the first seal 212 is provided with at least two, and the at least two first seals 212 are arranged at intervals along the first preset direction. By providing more first seals 212, the air leakage of the vacuum adsorption adjustment device 100 can be further avoided, ensuring a higher negative pressure value inside the vacuum adsorption adjustment device 100 and realizing better adsorption of the vacuum adsorption adjustment device 100 to the actual operation object.

[0070] As an optional embodiment, as Figure 2As shown, the first seal body 212 is a ring structure, which can further prevent air leakage of the vacuum adsorption adjustment device 100, ensure a relatively high negative pressure value inside the vacuum adsorption adjustment device 100, and achieve a better adsorption of the vacuum adsorption adjustment device 100 to the actual operation object.

[0071] As an optional embodiment, as Figure 2 shown, the first seal body 212 is an elastically deformable structure. The structure of the first seal body 212 is simple, and the first seal body 212 can achieve a good sealing effect on the effective vacuum space 111. Exemplarily, the material of the elastically deformable structure can be rubber, elastic alloy, etc. All materials with elastic deformation are within the protection scope of this optional embodiment.

[0072] As an optional embodiment, as Figure 2 shown, the second piston 22 includes a second piston body 221 and a second seal body 222. Among them, the second piston body 221 is arranged in the vacuum housing 10, the second seal body 222 is arranged on the outer periphery of the second piston body 221, and the second seal body 222 abuts against the inner wall of the vacuum housing 10. The setting of the second seal body 222 can further prevent air leakage of the vacuum adsorption adjustment device 100, ensure a relatively high negative pressure value inside the vacuum adsorption adjustment device 100, and achieve a better adsorption of the vacuum adsorption adjustment device 100 to the actual operation object.

[0073] As an optional embodiment, as Figure 2 shown, the second seal body 222 is set to at least two, and at least two second seal bodies 222 are arranged at intervals along a first preset direction. By setting more second seal bodies 222, air leakage of the vacuum adsorption adjustment device 100 can be further prevented, the negative pressure value inside the vacuum adsorption adjustment device 100 can be ensured to be relatively high, and a better adsorption of the vacuum adsorption adjustment device 100 to the actual operation object can be achieved.

[0074] As an optional embodiment, as Figure 2 shown, the second seal body 222 is a ring structure, and the second seal body 222 can further prevent air leakage of the vacuum adsorption adjustment device 100, ensure a relatively high negative pressure value inside the vacuum adsorption adjustment device 100, and achieve a better adsorption of the vacuum adsorption adjustment device 100 to the actual operation object.

[0075] As an optional embodiment, as Figure 2 shown, the second seal body 222 is an elastically deformable structure. The structure of the second seal body 222 is simple, and the second seal body 222 can achieve a good sealing effect on the effective vacuum space 111. Exemplarily, the material of the elastically deformable structure can be rubber, elastic alloy, etc. All materials with elastic deformation are within the protection scope of this optional embodiment.

[0076] As an alternative embodiment, as Figure 1 and Figure 2 shown, the wire body 32 includes a first sub-wire body 321 and a second sub-wire body 322. The first sub-wire body 321 includes a first end 3211 and a third end 3212. The third end 3212 is detachably connected to the piston assembly 20. The second sub-wire body 322 includes a second end 3221 and a fourth end 3222. The fourth end 3222 is detachably connected to the piston assembly 20, enabling quick disassembly and assembly of the wire body 32 and the piston assembly 20.

[0077] Specifically, as Figure 2 shown, the first piston body 211 includes a first connecting portion 2111, and a first connecting hole 2112 is formed in the first connecting portion 2111. Among them, the third end 3212 passes through the first connecting hole 2112 and is knotted, so as to achieve quick disassembly and assembly of the first sub-wire body 321 and the first piston 21; among them, the fourth end 3222 passes through the first connecting hole 2112 and is knotted, so as to achieve quick disassembly and assembly of the second sub-wire body 322 and the first piston 21. In other alternative embodiments, the wire body 32 can also be fixedly connected to the structure to be fixed by means of gluing, welding, screw fixing, etc.

[0078] Specifically, as Figure 2 shown, the second piston body 221 includes a second connecting portion 2211, and a second connecting hole 2212 is formed in the second connecting portion 2211. Among them, the third end 3212 passes through the second connecting hole 2212 and is knotted, so as to achieve quick disassembly and assembly of the first sub-wire body 321 and the second piston 22; among them, the fourth end 3222 passes through the second connecting hole 2212 and is knotted, so as to achieve quick disassembly and assembly of the second sub-wire body 322 and the second piston 22. In other alternative embodiments, the wire body 32 can also be fixedly connected to the structure to be fixed by means of gluing, welding, screw fixing, etc.

[0079] As an alternative embodiment, as Figure 1 and Figure 2 shown, the drive mechanism 31 includes a release end 311 and a winding end 312. The wire body 32 includes a first end 3211 and a second end 3221. The first end 3211 is connected to the release end 311, and the second end 3221 is connected to the winding end 312. The release end 311 can release the wire body 32, and the winding end 312 can wind the wire body 32. Through the cooperation of the release end 311 and the winding end 312, that is, one end of the wire body 32 is wound and the other end is released, so as to achieve better driving of the piston assembly 20 to move along the first preset direction, and ensure smooth and precise stepless adjustment of the vacuum adsorption adjustment device 100.

[0080] As an alternative embodiment, as Figure 1 andFigure 2 As shown, the driving assembly 30 further includes a reversing member 33. The wire body 32 passes through the reversing member 33 and changes its direction. The release end 311 and the winding end 312 are coaxially fixed. The winding direction of the wire body 32 around the release end 311 is the first winding direction (such as clockwise rotation), and the winding direction of the wire body 32 around the winding end 312 is the second winding direction (such as counterclockwise rotation). The helix directions of the first winding direction and the second winding direction are opposite. Since the release end 311 and the winding end 312 are fixedly connected to form an integral structure, only by driving this integral structure can the release of the wire body 32 by the release end 311 and the winding of the wire body 32 by the winding end 312 be synchronized. Through a simple structural design, the stepless adjustment of the effective vacuum space 111 and the corresponding vacuum adsorption area is ingeniously achieved, and it can more accurately and flexibly adapt to the adsorption requirements of objects of different sizes.

[0081] Due to the simple structure and ingenious layout of this driving assembly 30, the overall space occupied by the driving assembly 30 is small, and a small-volume and lightweight design of the driving assembly 30 can be achieved. Moreover, the driving assembly 30 is easy to manufacture and maintain, reducing the equipment cost and maintenance difficulty, which is beneficial to wide application in industrial production and other fields, improving production efficiency and product quality.

[0082] As an optional embodiment, as Figures 1 to 4 shown, the driving mechanism 31 further includes a base 313 and a rotary driving member 314. The release end 311 and the winding end 312 are rotatably connected to the base 313, and the release end 311 or the winding end 312 is connected to the output end of the rotary driving member 314. The rotary driving member 314 can drive the release end 311 and the winding end 312 to rotate synchronously, thereby realizing the rapid and accurate automatic adjustment of the positions of the first piston 21 and the second piston 22, effectively reducing the manpower, and improving the accuracy and automation degree of the adjustment of the vacuum adsorption adjustment device 100.

[0083] Exemplarily, the rotary driving member 314 can be a rotary motor, a rotary cylinder, etc. All rotary driving members 314 that can achieve rotational output are within the protection scope of this optional embodiment.

[0084] As an optional embodiment, the release end 311 and the winding end 312 can also be manually driven to achieve the synchronous driving of the release end 311 and the winding end 312.

[0085] As an optional embodiment, the driving mechanism 31 can also include a bearing (not shown in the figure). The integral structure and the base 313 can be connected through the bearing, which can ensure the relatively smooth rotation of the integral structure and avoid the jamming problem of the integral structure during rotation.

[0086] As an optional embodiment, as Figure 2 andFigure 5 As shown in Figure 5 , a through commutation channel 331 is provided on the commutation member 33, and the wire body 32 is inserted into the commutation channel 331. Through the arrangement of the commutation channel 331, the commutation of the wire body 32 can be realized. The structure of the commutation member 33 is simple, ingeniously designed and easy to process and manufacture.

[0087] As an optional embodiment, as Figure 2 and Figure 5 shown, the commutation member 33 is inserted into the vacuum housing 10. The commutation member 33 is made of an elastically deformable material. The commutation member 33 can achieve a good sealing effect on the vacuum housing 10, can prevent the vacuum adsorption adjustment device 100 from leaking air, ensure a high negative pressure value of the vacuum adsorption adjustment device 100, and achieve a good adsorption effect of the vacuum adsorption adjustment device 100 on the actual operation object. Exemplarily, the elastically deformable material can be rubber, elastic alloy, etc. All materials with elastic deformation are within the protection scope of this optional embodiment.

[0088] As an optional embodiment, as Figure 5 shown, the commutation channel 331 includes a first introduction section 3311, a communication section 3312 and a second introduction section 3313. Among them, the first introduction section 3311, the communication section 3312 and the second introduction section 3313 are arranged and connected along a second preset direction. The cross-sectional area of the first introduction section 3311 gradually decreases along the second preset direction, and the cross-sectional area of the second introduction section 3313 gradually increases along the second preset direction. Among them, through the settings of the first introduction section 3311 and the second introduction section 3313, it is convenient for the operator to insert the wire body 32 into the commutation channel 331. Among them, through the setting of the communication section 3312, a good guiding effect on the movement of the wire body 32 can be achieved, so as to prevent problems such as winding of the wire body 32 during movement, thereby ensuring accurate and rapid adjustment of the positions of the first piston 21 and the second piston 22.

[0089] As an optional embodiment, as Figure 2 shown, the vacuum adsorption adjustment device 100 further includes a seal 40. The seal 40 is also provided with a communicating accommodation groove 41 and a through hole 42. Part of the commutation member 33 is inserted into the accommodation groove 41, and the commutation channel 331 is connected to the through hole 42. Through the setting of the seal 40, a further sealing effect on the gap between the commutation member 33 and the vacuum housing 10 can be achieved, can prevent the vacuum adsorption adjustment device 100 from leaking air, ensure a high negative pressure value of the vacuum adsorption adjustment device 100, and achieve a good adsorption effect of the vacuum adsorption adjustment device 100 on the actual operation object.

[0090] As an optional embodiment, as Figure 2As shown, the vacuum adsorption adjustment device 100 further includes a fixing member 50. The fixing member 50 connects the sealing member 40 to the vacuum housing 10. The sealing member 40 and the vacuum housing 10 can achieve a good clamping effect on the commutation member 33, and can prevent the commutation member 33 from falling off the vacuum housing 10. Exemplarily, the fixing member 50 can be a screw, a pin, a snap component, etc. All structures that can realize the fixed connection between the sealing member 40 and the vacuum housing 10 are within the protection scope of this optional embodiment.

[0091] As an optional embodiment, as Figure 2 shown, the cross-sectional shape of the accommodation groove 41 is circular, with a simple structure and easy to manufacture.

[0092] As an optional embodiment, as Figure 2 shown, the cross-sectional shape of the accommodation groove 41 is non-circular, which can prevent the commutation member 33 from rotating in the accommodation groove 41 and ensure that the commutation member 33 always has a good commutation effect on the wire body 32. Exemplarily, the cross-sectional shape of the accommodation groove 41 can be triangular, rectangular, hexagonal, etc. All shapes that can prevent the commutation member 33 from rotating in the accommodation groove 41 are within the protection scope of this optional embodiment.

[0093] As an optional embodiment, as Figure 2 shown, the cross-sectional area of the through hole 42 gradually increases along the second preset direction, which is convenient for the operator to insert the wire body 32 into the through hole 42.

[0094] As an optional embodiment, as Figure 4 shown, the sealing member 40 is further provided with a guiding groove 43. The guiding groove 43 is communicated with the through hole 42. At least part of the wire body 32 is accommodated in the guiding groove 43. The guiding groove 43 can achieve a good guiding effect on the movement of the wire body 32 to prevent problems such as winding of the wire body 32 during movement, so as to ensure the accurate and rapid adjustment of the positions of the first piston 21 and the second piston 22.

[0095] As an optional embodiment, as Figure 4 shown, the vacuum adsorption adjustment device 100 further includes a vacuum connector 60. The vacuum connector 60 is inserted into the vacuum housing 10 and communicated with the vacuum cavity 11. The sealing member 40 is provided with an avoidance groove 44. At least part of the vacuum connector 60 is accommodated in the avoidance groove 44. In a limited space, it can prevent interference between the sealing member 40 and the vacuum connector 60.

[0096] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A vacuum adsorption adjustment device, characterized in that, Comprising: A vacuum housing (10), having a vacuum cavity (11) and provided with adsorption holes (12), the adsorption holes (12) being in communication with the vacuum cavity (11); A piston assembly (20), disposed in the vacuum cavity (11), the piston assembly (20) and the vacuum housing (10) jointly forming an effective vacuum space (111); and A driving assembly (30), including a driving mechanism (31) and a wire body (32), the wire body (32) being connected to the driving mechanism (31), the piston assembly (20) being disposed on the wire body (32), the driving assembly (30) being capable of driving the wire body (32) to adjust the position of the piston assembly (20) so as to adjust the size of the effective vacuum space (111).

2. The vacuum adsorption adjustment device according to claim 1, characterized in that The piston assembly (20) includes a first piston (21) and a second piston (22), the first piston (21) and the second piston (22) being respectively disposed on the wire bodies (32) of the corresponding driving assemblies (30), the first piston (21) and the second piston (22) being arranged at intervals along a first preset direction, the vacuum housing (10), the first piston (21) and the second piston (22) jointly forming the effective vacuum space (111).

3. The vacuum adsorption adjustment device according to claim 1 or 2, characterized in that, The driving mechanism (31) includes a release end (311) and a winding end (312), the wire body (32) includes a first end (3211) and a second end (3221), the first end (3211) being connected to the release end (311), and the second end (3221) being connected to the winding end (312).

4. The vacuum adsorption adjustment device according to claim 3, wherein The driving assembly (30) further includes a commutation member (33), the wire body (32) passing through the commutation member (33) and being commutated, the release end (311) and the winding end (312) being coaxially fixed, the winding direction of the wire body (32) with respect to the release end (311) being a first winding direction, the winding direction of the wire body (32) with respect to the winding end (312) being a second winding direction, the first winding direction and the second winding direction having opposite helix directions.

5. The vacuum adsorption adjustment device according to claim 4, characterized in that, A through commutation channel (331) is provided on the commutation member (33), the wire body (32) being inserted through the commutation channel (331); and / or The commutation member (33) is plugged into the vacuum housing (10), the commutation member (33) being made of an elastically deformable material.

6. The vacuum adsorption adjustment device according to claim 5, wherein The commutation channel (331) includes a first introduction section (3311), a connection section (3312) and a second introduction section (3313) which are arranged along a second preset direction and are in communication with each other, the cross-sectional area of the first introduction section (3311) gradually decreasing along the second preset direction, and the cross-sectional area of the second introduction section (3313) gradually increasing along the second preset direction; and / or The vacuum adsorption adjustment device further includes a seal (40). A receiving groove (41) and a through hole (42) that communicate with each other are further provided on the seal (40). Part of the switching member (33) is inserted into the receiving groove (41), and the switching channel (331) communicates with the through hole (42).

7. The vacuum adsorption adjustment device according to claim 6, wherein A guiding groove (43) is further formed on the seal (40). The guiding groove (43) communicates with the through hole (42), and at least part of the wire body (32) is received in the guiding groove (43); and / or The vacuum adsorption adjustment device further includes a fixing member (50). The fixing member (50) connects the seal (40) to the vacuum housing (10); and / or The cross-sectional shape of the receiving groove (41) is circular or non-circular; and / or The cross-sectional area of the through hole (42) gradually increases along the second preset direction; and / or The vacuum adsorption adjustment device further includes a vacuum connector (60). The vacuum connector (60) is inserted into the vacuum housing (10) and communicates with the vacuum cavity (11). An avoidance groove (44) is formed on the seal (40), and at least part of the vacuum connector (60) is received in the avoidance groove (44).

8. The vacuum adsorption adjustment device according to claim 4, wherein, The driving mechanism (31) further includes a base (313) and a rotary driving member (314). The release end (311) and the winding end (312) are rotatably connected to the base (313). The rotary driving member (314) is connected to the release end (311) or the winding end (312), and the rotary driving member (314) can drive the release end (311) and the winding end (312) to rotate synchronously; and / or The wire body (32) includes a first sub-wire body (321) and a second sub-wire body (322). The first sub-wire body (321) includes a first end (3211) and a third end (3212). The third end (3212) is detachably connected to the piston assembly (20). The second sub-wire body (322) includes a second end (3221) and a fourth end (3222). The fourth end (3222) is detachably connected to the piston assembly (20).

9. The vacuum adsorption adjustment device according to claim 1 or 2, characterized in that, The piston assembly (20) includes: a piston body disposed in the vacuum housing (10); and a sealing body provided on the outer periphery of the piston body. The sealing body abuts against the inner wall of the vacuum housing (10).

10. The vacuum adsorption adjustment device according to claim 9, characterized in that, At least two sealing bodies are provided. At least two sealing bodies are arranged at intervals along a first preset direction; and / or The sealing body is an annular structure; and / or The sealing body is an elastically deformable structure.

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