CN210100036U

CN210100036U - Internal stay formula anchor clamps with buffer structure

Info

Publication number: CN210100036U
Application number: CN201920289469.XU
Authority: CN
Inventors: 鲍磊; 张凌峰; 赵元瑞; 牟行浩
Original assignee: Suzhou Software Robot Technology Co Ltd
Current assignee: Beijing Software Robot Technology Co ltd
Priority date: 2019-03-07
Filing date: 2019-03-07
Publication date: 2020-02-21
Anticipated expiration: 2029-03-07

Abstract

The embodiment of the application discloses interior supporting formula anchor clamps with buffer structure, including buffer structure and with the anchor clamps head that buffer structure is connected. The jig head includes a support member and a first elastic member sealingly provided on the support member in such a manner as to cover a part or all of the outer side of the support member. A first air channel is arranged on the first elastic piece and/or the supporting component; in the installation state, the air channel is communicated with the air charging and discharging device, so that the first elastic piece can expand outwards under the action of the air charging and discharging device. The beneficial effects that may be brought by the embodiments of the present application include, but are not limited to: the clamp has simple structure and low cost, can quickly and stably clamp fragile and soft objects with different sizes, regular or irregular internal shapes, such as rings, bottles and the like in a certain range, and does not damage the clamped objects; and by providing a cushioning structure that functions to protect the clip and reduce possible damage to the article.

Description

Internal stay formula anchor clamps with buffer structure

Technical Field

The application relates to a clamp, in particular to an internal support type clamp with a buffering structure.

Background

In industrial production and daily life, some objects need to be picked up, and sometimes the objects can only be picked up in a mode of supporting the inner wall of the object from the inner side because the object is inconvenient to directly contact the outer surface of the object. Some objects cannot be clamped by using a metal or other rigid clamp because of thin wall thickness, weak strength or easy damage to the inner surface, or the objects may be damaged. Or some objects have small internal space or complex profile, are customized with special rigid clamps, have high cost and cannot be simultaneously applied to other objects. And if the design is improper, the clamping stability is poor and the clamping is easy to fall off. Therefore, there is a need for a technique to provide internal support for gripping in various industrial processes and daily life, or to support and fix objects internally.

Although the internal-supporting type clamp has appeared in the prior art, the internal-supporting type clamp adopts the cylinder to pull the elastic structure to generate deformation, so that the internal-supporting type clamp clamps the workpiece, and is not suitable for internal-supporting type clamping scenes of fragile and soft workpieces due to the limitation of the cylinder diameter and air pressure of the cylinder. Such as thin-walled glass articles, ceramic ware blanks, and the like.

In addition, since the internal bracing type clamp needs to extend into the article when the article is clamped, in some cases (such as batch clamping), if the internal bracing type clamp does not accurately extend into the article to be clamped, damage may be caused to the article or the clamp.

SUMMERY OF THE UTILITY MODEL

The application provides an internal stay formula anchor clamps with buffer structure. The internally supporting clamp with the buffer structure can comprise the buffer structure and a clamp head connected with the buffer structure. Wherein the clamp head may include a first elastic member and a support member. The first elastic member may be sealingly provided on the support member so as to cover a part or all of the outer side of the support member. A first air channel is arranged on the first elastic piece and/or the supporting component; in the installation state, the first air channel is communicated with the inflation and deflation device, so that the first elastic piece can expand outwards under the action of the inflation and deflation device.

According to some preferred embodiments of the present application, the buffer structure is a buffer or an elastic buffer.

According to some preferred embodiments of the present application, the buffer structure includes a telescopic mechanism, a pressure sensor, and a controller. The telescopic mechanism and the pressure sensor are connected with the controller, the supporting part is connected to the telescopic mechanism, and the pressure sensor is arranged at the joint of the supporting part and the telescopic mechanism.

According to some preferred embodiments of the present application, the first elastic member is made of silicone or rubber.

According to some preferred embodiments of the present application, a reinforcing structure is provided on an outer wall and/or an inner wall of the first elastic member.

According to some preferred embodiments of the present application, the reinforcing structure includes at least one of a bead or a rough surface formed on the first elastic member.

According to some preferred embodiments of the present application, the reinforcing beads are at least one of strip-shaped protrusions, wave-shaped protrusions, and saw-toothed protrusions.

According to some preferred embodiments of the present application, a texture and/or a micro bump is provided on the first elastic member such that an outer wall and/or an inner wall surface of the first elastic member is formed as the rough surface.

According to some preferred embodiments of the present application, at least one of an abrasion resistant layer, a trace resistant layer, an oil resistant layer, or an antistatic layer is disposed on an outer wall of the first elastic member.

According to some preferred embodiments of the present application, in the installed state, the waist portion of the first elastic member is concave; alternatively, the first resilient member may be "conformal" in the installed state.

According to some preferred embodiments of the present application, the support member is formed with an inner recess at a middle portion thereof, so that an inner cavity can be formed between the first elastic member and an outer side of the support member.

According to some preferred embodiments of the present application, a snap-fit portion is provided on the support member. In the mounted state, an end portion of the first elastic member is engaged with the engaging portion, so that the first elastic member is hermetically provided on the support member so as to cover a part or all of the outer side of the support member.

According to some preferred embodiments of the present application, the support member is detachably connected to the buffer structure by a screw connection structure and/or a snap connection structure, so that the clamp head is detachably connected to the buffer structure.

According to some preferred embodiments of the present application, the clamp head further comprises a connecting member. The supporting part is connected with the connecting part through a first detachable connecting structure; the connecting part is connected with the buffering structure through a second detachable connecting structure; such that the clamp head is removably attached to the cushioning structure.

According to some preferred embodiments of the present application, the first detachable connection structure and the second detachable connection structure are a screw connection structure and/or a snap connection structure.

According to some preferred embodiments of the present application, the connection member includes an upper connection portion for connection with the buffer structure, a lower connection portion for connection with the support member, and a crimping portion. The crimping portion is a protruding portion formed between the upper connection portion and the lower connection portion in such a manner as to protrude radially outward. In the mounted state, the crimping portion can press the first elastic member against the support member to ensure the sealing property between the first elastic member and the support member.

According to some preferred embodiments of the present application, a second air passage is provided in the connection member. In the installation state, the second air passage is communicated with the first air passage to form an air passage.

According to some preferred embodiments of the present application, the clamp head further comprises a sealing member. The sealing member is disposed at a connection of the first elastic member and the support member.

Additional features of the present application will be set forth in part in the description which follows. Additional features of some aspects of the present application will be apparent to those of ordinary skill in the art in view of the following description and accompanying drawings, or in view of the production or operation of the embodiments. The features disclosed in this application may be realized and attained by practice or use of various methods, instrumentalities and combinations of the specific embodiments described below.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. Like reference symbols in the various drawings indicate like elements.

FIG. 1 is a schematic diagram of a chuck head according to some embodiments of the present application.

FIG. 2 is a schematic diagram of a chuck head according to further embodiments of the present application.

FIG. 3 is a cross-sectional view of a front view of a chuck head according to other embodiments of the present application.

Fig. 4 is a schematic view of a gripper head according to some embodiments of the present application, with a first resilient member expanded to engage an inside surface of an object to be gripped.

FIG. 5 is a schematic view of an air channel in a fixture head according to some embodiments of the present application.

Fig. 6, 7 are perspective and cross-sectional views of a first elastic member shown in an expanded state according to some embodiments of the present application.

Fig. 8 and 9 are schematic structural views of a clamp head according to other embodiments of the present application.

Fig. 10 is an enlarged view at I in fig. 9.

Figures 11, 12 are front and cross-sectional views of a clamp head assembly shown in accordance with some embodiments of the present application.

Figures 13 and 14 are front views of a clamp head assembly shown in use in both contracted and expanded configurations according to further embodiments of the present application.

Fig. 15 and 16 are schematic structural views of an inner support type clamp with a telescopic mechanism according to some embodiments of the application.

Fig. 17 and 18 are schematic structural views of an inner-supporting clamp with a buffering structure according to some embodiments of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in order to provide a better understanding of the present invention to the public, certain specific details are set forth in the following detailed description of the invention. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details.

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only examples or embodiments of the application, from which the application can also be applied to other similar scenarios without inventive effort for a person skilled in the art. It should be understood that these exemplary embodiments are given solely for the purpose of enabling those skilled in the relevant art to better understand and thereby implement the present invention, and are not intended to limit the scope of the present invention in any way. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements. The term "based on" is "based, at least in part, on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment". "plurality" means two or more. "at least one" means one or more than one. "first," "second," … …, and the like are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order.

The application provides an internal stay formula anchor clamps with buffer structure. The internally supporting jig having a buffering structure may include a buffering structure 20 and a jig head 100 connected to the buffering structure 20. Among them, the clamp head 100 may include the first elastic member 2 and the support member 3.

In some embodiments, the first elastic member 2 may be sealingly disposed on the support member 3 in such a manner as to cover the entire outer side of the support member 3.

Illustratively, the support member 3 is provided with an engaging portion 31. In the attached state, the upper and lower ends of the first elastic element 2 may be engaged with the engaging portions 31, respectively, so that the first elastic element 2 may be hermetically provided on the support member 3 so as to cover the entire outer side of the support member 3. For example, as shown in fig. 1, the engaging portions 31 are provided on both the top and bottom of the support member 3. In the mounted state, the first elastic element 2 is sleeved on the supporting part 3. The upper end of the first elastic element 2 is mounted on the engaging part 31 on the top of the support member 3; the lower end of the first elastic member 2 is attached to an engaging portion 31 at the bottom of the support member 3. The upper end and the lower end of the first elastic element 2 can be respectively connected with the clamping part of the supporting component 3 in a sealing way through bonding sealing, compression sealing, clamping sealing, sealing element sealing and the like, so that the first elastic element 2 can be sleeved on the supporting component 3 in a mode of covering the whole outer side of the supporting component 3 and is connected with the supporting component 3 in a sealing way. The first elastic part 2 is completely covered on the horizontal outer side of the supporting part 3, and after inflation (in a positive air pressure state), the internal support type clamp is in a lantern shape, an ellipsoid shape or a drum shape, as shown in fig. 6 and 7, the first elastic part 2 can horizontally contact with the inner side surface of an object to be clamped by 360 degrees, and a single internal support type clamp can clamp the object.

In some embodiments, the first elastic element 2 may also be arranged on the support element 3 in a sealing manner so as to cover a portion of the outside of the support element 3.

Illustratively, the support member 3 is provided with an engaging portion 31. In the attached state, the upper and lower ends of the first elastic element 2 may be engaged with the engaging portions 31, respectively, so that the first elastic element 2 may be sealingly provided on the support member 3 so as to cover a portion of the outer side of the support member 3. For example, as shown in fig. 2, the engaging portions 31 are provided on both the outer middle portion and the bottom portion of the support member 3. In the mounted state, the first elastic element 2 is sleeved on the supporting part 3. The upper end of the first elastic element 2 is arranged on the clamping part 31 at the middle part of the outer side of the supporting component 3; the lower end of the first elastic member 2 is attached to an engaging portion 31 at the bottom of the support member 3. The upper end and the lower end of the first elastic element 2 can be respectively connected with the clamping part of the supporting component 3 in a sealing way through bonding sealing, pressure welding sealing, clamping sealing, sealing element sealing and the like, so that the first elastic element 2 can be sleeved on the supporting component 3 in a mode of covering partial outer side of the supporting component 3 and is connected with the supporting component 3 in a sealing way.

In some embodiments, the first elastic member 2 may be a cylindrical elastic member formed in an integrally molded manner or in a curled manner by an elastic sheet.

By providing the cylindrical elastic member on the support member 3 in a sealing manner so as to cover at least a part of the outside of the support member 3, that is, so as to cover a part or all of the outside of the support member 3, it is possible to form an airbag-like structure between the first elastic member 2 and the outside of the support member 3. In the mounting or using state, the first elastic piece 2 is communicated with the outer side of the supporting component 3 through an air charging and discharging device, so that air can be charged between the first elastic piece 2 and the outer side of the supporting component 3 to expand the first elastic piece 2 outwards and the air between the first elastic piece 2 and the outer side of the supporting component 3 is discharged to contract the first elastic piece 2. When the first elastic part 2 is in an uninflated or air-pumped state, the internal-supporting type clamp of the application can extend into the object 200 to be clamped, and then air is filled between the first elastic part 2 and the outer side of the supporting part 3 through the inflation and deflation device to enable the first elastic part 2 to expand outwards until the first elastic part 2 can form a proper clamping force for the object 200 to be clamped inside, so that the object 200 to be clamped can be clamped from the inside, as shown in fig. 4; after the clamping is completed, the gas between the outer sides of the first elastic part 2 and the supporting part 3 is exhausted, so that the first elastic part 2 contracts, and the internal support type clamp can be taken out of the object 200 to be clamped. Because the air pressure between the first elastic part 2 and the outer side of the supporting part 3 can be set and adjusted according to the needs, the force of the inner support can be adjusted, and the thin-wall or easily damaged workpieces can be safely picked up.

In some embodiments, the first elastic element 2 may also be directly applied to the balloon.

Similarly, by sealing the airbag on the supporting component 3 in a manner of covering part or all of the outer side of the supporting component 3, in the installation or use state, the airbag is communicated with the inflation and deflation device, so that the airbag can be inflated by inflating gas to expand outwards and the gas in the airbag is exhausted to contract the first elastic member 2, thereby clamping the object 200 to be clamped from the inside.

In some embodiments, the waist of the first elastic element 2 has a concave shape in the installed state.

Illustratively, as shown in fig. 3, when not inflated or evacuated (negative pressure state), the first elastic member 2 is in a relaxed or contracted state, in which the first elastic member 2 assumes a concave shape in the vertical direction (in the radial direction). The design of the concave shape can increase the surface area of the first elastic element 2 in the case of the same size, so as to further increase the extension range of the first elastic element 2 after expansion.

In some embodiments, the first elastic member 2 may be "conformal". By way of example, "conformal" may refer to a shape that provides a better fit of the surface of the first elastic member 2 to the surface of the article. For example, the inner supporting surface of the first elastic element 2 can be designed to be matched with the surface texture of the object; as another example, the shape of the first elastic member 2 may be custom designed, as shown in FIG. 4, to be the same as the shape of the object to be grasped. Alternatively, by designing the characteristics or texture of the surface of the first elastic member 2, the direction in which the first elastic member 2 expands can be restricted, and the frictional force can be increased, as shown in fig. 15.

In some embodiments, the first elastic member 2 is made of a highly elastic material. The elasticity of the high-elasticity material is very good, the deformation of the first elastic member 2 made of the high-elasticity material can be realized by the pressure of gas, and the deformation speed of the first elastic member 2 made of the high-elasticity material is high, so that the high-elasticity material is suitable for industrial application.

For example, the material of the first elastic element 2 may be silicone. For example, a heat-vulcanized solid silicone rubber, a fluorosilicone rubber, a liquid silicone rubber, and the like. Compared with the conventional organic elastomer, the silica gel is particularly easy to process and manufacture, can be molded, calendered and extruded under the condition of low energy consumption, and has high production efficiency. Tensile strength refers to the force per unit of area required to cause a sample of silicone material to tear. The tensile strength range of the hot vulcanization type solid organic silica gel is between 4.0 and 12.5 MPa; the tensile strength range of the fluorosilicone gel is between 8.7 and 12.1 MPa; the tensile strength range of the liquid silica gel is between 3.6 and 11.0 MPa. Elongation refers to the "ultimate elongation at break" or the percentage increase relative to the original length when the sample breaks. The elongation rate of the hot vulcanization type solid silica gel is generally between 90% and 1120%; the general elongation of the fluorine-silicon adhesive is between 159% and 699%; the liquid silica gel generally has an elongation of 220% to 900%. The selection of different processing methods, curing agents and temperatures can vary the elongation of the sample to a large extent.

Through selecting the material of first elastic component 2 for silica gel, can effectually solve among the prior art based on the above-mentioned technical problem of the internal stay formula anchor clamps of gasbag. For example, as shown in fig. 4, when the inner side surface of the object to be gripped is a complex contour, since the silica gel can be greatly deformed and can be effectively attached to the inner side surface of the target object, the gripping can be realized without complex design in advance. Therefore, the internal support type clamp based on the high-elasticity air bag can be suitable for objects to be clamped with complex inner contours, has strong universality, is low in production cost and high in efficiency, and is suitable for industrial scenes and life scenes.

For example, the material of the first elastic element 2 may also be rubber. For example, natural rubber, styrene-butadiene rubber, isoprene rubber, etc.

For example, the material of the first elastic element 2 may also be thermoplastic elastomer or elastic composite material. For example, the first elastic member 2 may be a styrene-based TPE thermoplastic elastomer (e.g., SBS, SEBS, SEPS, EPDM/styrene, BR/styrene, CI-IIR/styrene, NP/styrene, etc.), an olefin-based TPE thermoplastic elastomer (e.g., dynamically vulcanized TPO), a diene-based TPE thermoplastic elastomer, etc. For another example, the first elastic member 2 may be made of POE elastic composite material.

In some embodiments, a reinforcing structure 9 is provided on the outer and/or inner wall of the first resilient element 2.

In some embodiments, the reinforcing structure 9 may comprise a bead formed on the first resilient member 2.

Illustratively, the reinforcing ribs are at least one of strip-shaped protrusions, wave-shaped protrusions, and saw-toothed protrusions. For example, as shown in fig. 1, the reinforcing rib may be an annular protrusion structure formed by extending a circle along the circumferential direction on the outer surface of the first elastic member 2 and protruding outward in the radial direction. For another example, the rib may be a rib structure that is axially arranged on the outer surface of the first elastic member 2 and radially outwardly protruded. In some embodiments, the number of ribs may be 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 or more. When the number of the reinforcing ribs is plural, the plural reinforcing ribs may be uniformly provided on the outer surface of the first elastic member 2. When the number of the reinforcing ribs is plural, the plural reinforcing ribs may be arranged on the outer surface of the first elastic member 2 in different manners as needed.

By arranging the reinforcing ribs on the outer surface of the first elastic part 2, on one hand, the friction coefficient of the surface of the first elastic part 2 can be increased, so that the friction force between the surface of the first elastic part and the inner side surface of the object to be clamped can be increased in the using process, and the clamp head 100 can clamp the object to be clamped more stably; on the other hand, the reinforcing ribs can reinforce the first elastic part 2, so that the strength, the local rigidity and the service life of the air bag are increased. In addition, the shape of the first elastic member 2 in the expanded state can be adjusted by adjusting the number, size and/or arrangement of the reinforcing ribs. For example, when it is required that the first elastic member 2 is integrally expanded outward, one or more reinforcing ribs may be uniformly provided on the outer surface of the first elastic member 2, and the size of the reinforcing ribs is set to be small so that the first elastic member 2 can be integrally expanded outward when inflated. For another example, when a plurality of sections of expansions with different lengths and/or different diameters are to be formed when the first elastic member 2 is expanded, a plurality of ribs may be arranged at a desired interval length, and the size of the ribs is set to be large, so that a plurality of sections of expansions with different lengths and/or different diameters (as shown in fig. 7 and 15) may be formed when the first elastic member 2 is expanded, for example, so that the first elastic member 2 is formed with a structure having a small upper diameter and a large lower diameter when it is expanded.

In some embodiments, a reinforcing structure may also be formed on the inner surface of the first elastic member 2. A reinforcing structure formed on the inner surface of the first elastic part 2 can be matched with a reinforcing structure on the outer surface of the first elastic part 2, so that the first elastic part 2 is reinforced, the strength, the local rigidity and the service life of the air bag are increased; in addition, the shape of the first elastic member 2 in the expanded state may be adjusted.

In some embodiments, the reinforcing structure 9 may comprise a roughened surface formed on the first elastomeric member 2.

Illustratively, the rough surface may be formed by a plurality of ridges and/or micro-bumps provided on the first elastic member 2. For example, a plurality of spherical crown-shaped protrusions and/or textures may be provided on the surface of the first elastic member 2 in a uniform or non-uniform manner such that the outer wall and/or inner wall surface of the first elastic member 2 is formed as a rough surface. Through setting up to the mat surface at the surface of first elastic component 2, can increase the coefficient of friction on first elastic component 2 surface for can increase in the use and wait to press from both sides the frictional force of getting the medial surface of object, thereby make the anchor clamps head 100 of this application can treat more firmly and press from both sides and get the object and carry out the centre gripping.

In some embodiments, an abrasion resistant layer, an antistatic layer, an oil-proof layer, and/or a trace-proof layer, etc. may be further disposed on the first elastic member 2.

For example, other materials may be added to the outer surface of the first elastic element 2 (for example, a film made of other materials may be added by spraying or soaking), so that functions of wear resistance, no trace, oil resistance, static electricity resistance, and the like may be achieved. For example, the wear-resistant layer may be formed on the outer surface of the first elastic member 2 by spraying with a wear-resistant paint (e.g., KN17 high-molecular ceramic polymer paint, KN7051 silicon carbide ceramic paint, etc.). For another example, an oil repellent layer may be formed on the outer surface of the first elastic member 2 by immersing an oil repellent agent (such as a chromium complex of perfluorocarboxylic acid, an acrylic fluorocarbon ester resin, an organic fluorine compound such as acrylic fluorocarbon sulfonamide ethyl ester). For example, the antistatic layer may be formed on the outer surface of the first elastic member 2 by spraying or dipping an antistatic material (e.g., an antistatic carbon-based paint, an antistatic metal oxide-based paint, an alkyd type, an acrylic type, an epoxy type, a urethane type, or other antistatic paint); alternatively, an antistatic film made of a metal oxide-based filling type antistatic material or the like may be provided on the outer surface of the first elastic member 2. Also for example, an anti-indentation layer may be formed on the outer surface of the first elastic member 2 by spraying or dipping an anti-fingerprint coating agent, or the like; alternatively, a pressure-resistant film is provided on the outer surface of the first elastic member 2, thereby providing an anti-indentation layer.

In some embodiments, a connection structure 32 for connecting with the outside is formed on the support member 3, as shown in fig. 1, 2, and 3.

Illustratively, the connection structure 32 may be a threaded connection structure or a snap connection structure. For example, the support member 3 may be directly connected to the outside by a screw connection or a snap connection by means of a screw connection or a snap connection. For example, the support member 3 may be connected to the connection member 4 by a screw connection structure or a snap connection structure by a screw connection or a snap connection, and then connected to the outside through the connection member 4.

In some embodiments, an inner recess 33 is formed in the middle of the support member 3.

Illustratively, the middle portion of the support member 3 may be formed with an inner recess 33 recessed radially inward, as shown in fig. 1, 2, and 3. So that the support member 3 can take a shape of a small waist and large ends. That is, the support member 3 has a shape in which the diameter is gradually increased from the middle portion toward the top and the bottom, respectively. By forming the concave portion 33 in the middle of the supporting member 3, when the first elastic member 2 is sleeved on the supporting member 3 in a manner of covering at least a part of the outer side of the supporting member 3, an inner cavity can be formed between the first elastic member 2 and the outer side of the supporting member 3. So that an air bag-like structure can be formed between the first elastic member 2 and the outer side of the support member 3. In addition, when the internal bracing type clamp finishes clamping the object to be clamped and is expected to be separated from the object, the first elastic part 2 in the internal bracing type clamp can not be separated in time due to electrostatic adsorption and the like. And by forming the concave part 33 in the middle of the supporting part 3, the inflation and deflation device can fully or partially pump out the air between the first elastic member 2 and the concave part 33, so that the first elastic member 2 is inwardly contracted and sunken, and the first elastic member 2 is separated from the object which is clamped completely.

In some embodiments, a first air duct 1 is provided within the support member 3, as shown in fig. 1, 2, 3, 5.

The first elastic element 2 is communicated with the outer side of the supporting component 3 through a first air channel 1 and an air charging and discharging device. Or the inflation and deflation device can be communicated with the inside of the air bag through the first air passage 1.

In some embodiments, the first airway 1 may include a main airway 11 and a plurality of branch airways 12. The first elastic member 2 is communicated with the main air passage 11 through a plurality of air dividing passages 12 between the outside of the support member 3 or inside the air bag. The main air passage 11 can communicate with an inflation/deflation device. Illustratively, the main air duct 11 is arranged in the support part 3, and one port is connected with an air charging and discharging device; the gas-dividing passages 12 are provided between the main gas passage 11 and the inner chamber or the inside of the airbag, and one port of each gas-dividing passage 12 is connected to the main gas passage 11 and the other port of the gas-dividing passage 12 is connected to the inner chamber. As shown in fig. 5, the primary airway 1 includes a main airway 11 and six branch airways 12, one port of each branch airway 12 is connected to the main airway 11, and the other port of each branch airway 12 is connected to the lumen. Through a plurality of ports of the air distributing channel, the gas exchange efficiency in the air bag can be improved.

In some embodiments, the internal bracing clamp may further comprise a connecting member 4. The connecting member 4 may be used for external connection of the jig head 100.

As shown in fig. 3, 7, 8, and 10, the connection member 4 is connected to the support member 3 such that the support member 3 and the first elastic member 2 can be connected to the outside through the connection member 4.

Illustratively, the connecting member 4 may include an upper connecting portion 44 for connecting with the outside and a lower connecting portion 45 for connecting with the connecting structure 32 on the support member 3.

For example, as shown in FIG. 10, the upper coupling portion 44 may be a threaded coupling portion or a snap-fit coupling portion. The lower connecting portion 45 may be a screw connecting portion or a snap connecting portion. In the mounted state, the connecting part 4 can be connected to the connecting structure 32 on the support part 3 by means of a screw connection or a snap connection via the lower connecting part 45. In some embodiments, the connecting member 4 and the support member 3 may be detachable. By arranging the connecting part 4 to be detachably connected with the supporting part 3, when the first elastic part 2, the supporting part 3 or the connecting part 4 is damaged, the damaged part can be replaced without being scrapped completely, so that the use cost is saved. Of course, the connecting member 4 and the supporting member 3 may not be detachable, or the connecting member 4 and the supporting member 3 may be integrally formed, so that the connecting member 4 and the supporting member 3 are more stable and firm. In some embodiments, as shown in fig. 8 and 10, the connecting part 4 can be connected with the vertical outer side of the supporting part 3 in a way of improving the fitting area of the first elastic part 2 and the inner side surface of the object to be gripped, and the use of the clamp is further facilitated. In some embodiments, as shown in fig. 3 and 4, the connecting part 4 can also pass through the first elastic part 2 to be connected with the horizontal side of the supporting part 3, when the connecting part 4 is inflated, the air bag (the inner air bag) passing through the connecting part is freely expanded, and the outer air bag is contacted with the inner side surface of the object to be clamped.

In some embodiments, the connecting part 4 further comprises a crimp 46.

Illustratively, the crimping portion 46 is a protrusion formed between the upper connection portion 44 and the lower connection portion 45 in such a manner as to project radially outward. As shown in fig. 10, in the mounted state, the crimping portion 46 can press the first elastic member 2 against the support member 3 to ensure the sealing property between the first elastic member 2 and the support member 3. In some embodiments, a sealing ring or a gasket may be further disposed between the engaging portion of the first elastic member 2 and the supporting member 3 to further ensure the sealing property between the first elastic member 2 and the supporting member 3.

In some embodiments, a second air passage is provided within the connecting member 4.

The first elastic part 2 and the outer side of the supporting part 3 or the inner part of the air bag can be communicated through a second air passage and an inflation and deflation device. Illustratively, as shown in fig. 3 and 10, in the installation state, the second air passage can be communicated with the first air passage 1 arranged in the supporting component 3, so that the first elastic piece 2 can be communicated with the outer side of the supporting component 3 or the inner part of the air bag can be communicated with the inflation and deflation device.

In some embodiments, in order to further ensure the sealing performance of the internal stay type clamp, especially prevent the air bag from leaking and generating undesired deformation, as shown in fig. 1, 3 and 10, the internal stay type clamp further comprises a sealing component 5.

The sealing member 5 may adopt a static seal or a dynamic seal. The sealing components of the static seal mainly comprise a sealing gasket, a sealing glue and other direct contact seals. The sealing parts of the dynamic seal can be a rotary sealing part and a reciprocating sealing part. If the sealing part is contacted with the parts which move relatively, the sealing part can be divided into contact type and non-contact type; depending on the sealing element and the contact position, these can be further divided into circumferential sealing and end face sealing, which are also referred to as mechanical seals. In general, the seal member in the embodiment of the present application mainly employs a seal member of an end face seal in consideration of ease of attachment and detachment of the member. The corresponding sealing member 5 may be designed, for example, in a ring shape, a concavo-convex shape, etc., according to the contact shape of the first elastic member 2 with the inner side of the support member 3, when the outer surface of the sealing member 5 is sealingly connected with the coinciding inner walls of the first elastic member 2 and the support member 3. The sealing member 5 may also be arranged outside the first elastic member 2 and/or the support member 3, for example, by using a gasket or sealant to be sealingly connected to the outside of the first elastic member 2 and/or the support member 3. The sealing member 5 may also be a sealing press 51, as shown in fig. 3, where the inner wall of the sealing press 51 is sealingly connected with the outer walls of the first elastic member 2 and the support member 3. Illustratively, the sealing press 51 includes an upper sealing press which may be disposed at a junction of the upper end of the first elastic member 2 and the top of the support member 3, and/or a lower sealing press which may be disposed at a junction of the lower end of the first elastic member 2 and the bottom of the support member 3. Compared with other sealing parts, the sealing pressing block is simpler and more convenient to mount and dismount, and is more suitable for industrial use. For example, as shown in fig. 1 and 3, the sealing pressing piece 51 may be connected to the support member 3 by the fastening screw 8, and an inner wall of the sealing pressing piece 51 is sealingly connected to the first elastic member 2 and an outer wall of the support member 3. In some embodiments, as shown in fig. 12, the seal component 5 may also include a seal sub-component 52. The seal sub-assembly 52 may be a seal screw, and the seal sub-assembly 52 may connect the upper and lower seals of the internal bracing clamp together, pressing further against the edge of the middle resilient first elastomeric member 2 to achieve a physical connection and gas-tight seal. For example, the sealing member 52 may be a long screw as shown in fig. 12, or may be a short screw, and the sealing member 52 further connects the sealing member 5 and the supporting member 3, and presses the edge of the intermediate elastic member 2 to achieve physical connection and air tightness, which is not limited by the embodiment of the present application.

In some embodiments, the internal bracing clamp further comprises a gas supply interface 6.

The first elastic element 2 and the outer side of the supporting part 3 or the inner part of the air bag can be communicated through an air supply interface 6 and an air charging and discharging device.

Illustratively, the air supply port 6 may be provided directly on the first elastic member 2. One end of the air supply interface 6 is communicated with the inside of the first elastic part 2, and the other end of the air supply interface can be communicated with the air charging and discharging device, so that the inside of the first elastic part 2 can be communicated with the air charging and discharging device, and the air supply interface can expand when the air charging and discharging device supplies air and recover or contract when air is discharged or exhausted.

For example, the air supply connection 6 can also be provided on the connecting part 4 or the support part 3. As shown in fig. 3, the air passage on the connecting part 4 and/or the supporting part 3 is communicated with one end of the air supply connector 6, and the other end of the air supply connector 6 is communicated with the air charging and discharging device, so that the first elastic member 2 can be communicated with the air charging and discharging device, thereby being capable of expanding when the air charging and discharging device supplies air and recovering or contracting when the air discharging or exhausting device exhausts air.

In some embodiments, the inflation and deflation device may be an electric inflation and deflation device, a cyclic inflation and deflation device, a gas pumping and deflation device, a gas generator or a gas storage tank, and the like.

One port of the air supply port 6 is connected to one port of the air passage of the connecting member 4 and/or the support member 3, and the other port of the air supply port 6 is connected to the air charging and discharging device. For example, the air tank may be connected to the air supply interface 6 by a device or a joint having an air charging and discharging function such as a solenoid valve. For example, the gas generator is connected to the gas supply interface 6 through a device or a joint having a charging and discharging function such as a solenoid valve; the gas generator may also be disposed within the first resilient member 2. The pneumatic system can control the air pressure state of the first elastic element 2 through an inflation and deflation device (not shown), and the expansion of the first elastic element 2 can be accurately controlled.

In some embodiments, the internal supporting type clamp in the above embodiments can be used alone or in combination.

For example, a screw or snap connection is provided on the connecting part 4, so that the connecting part 4 can be connected with the outside by means of the screw or snap connection. The connecting part 4 may include an upper connecting part and/or a lower connecting part, and for an internal stay type clamp, may include an upper connecting part or a lower connecting part, and may further include an upper connecting part and a lower connecting part, depending on the external connection requirement in the actual use scene. The internal support type clamp can be used independently or in combination. In some embodiments, another clamp may be connected by the connecting member 4 of the internal stay clamp.

As shown in fig. 11 and 12, a plurality of internal-supporting clamps are connected in series through the connecting part 4, and as an integral clamp, the internal-supporting clamps can be conveniently mounted and dismounted based on the serial connection of the connecting part 4, and can be spliced into a length required in an actual use scene. Fig. 11 is a front view of a plurality of internally bracing clamps used "in series", and fig. 12 is a cross-sectional view of fig. 11. Here, the connecting member 4 specifically includes an adapter fitting 41 and an adapter connector 42, the adapter fitting 41 is used for connecting the integral clamp with another clamp, and the adapter connector 42 is used for connecting two internal supporting clamps. Optionally, the connecting part 4 may further include a transfer screw 43. As shown in fig. 12, the adapter screws 43 are long screws that connect one internally bracing clamp to the last internally bracing clamp or adapter mount. The adapter screw 43 here can be a short screw, physically connecting only the support parts 3 of the two internal bracing clamps. The main air ducts of a plurality of internally supporting clamps extend through the connecting part 4 to be connected, and the pneumatic control of all the internally supporting clamps can be completed through one air supply interface 6. Optionally, a sealing component 5 such as a sealing ring 53 is added at the joint of the main air passage and other components, so as to further ensure the sealing performance of the internal support type clamp.

Because the first elastic member 2 deforms based on the change of air pressure, for an internal-support type clamp, the pressure in the first elastic member 2 is the same everywhere, the pressure of the first elastic member 2 on the inner side surface of the object to be clamped is also the same everywhere, and if the thickness of the object to be clamped is different in the vertical direction, the object to be clamped can be damaged by using the integral clamp. Therefore, the integral clamp formed by connecting the plurality of internal support type clamps in series can also comprise an air passage control component for controlling the communication of the air passages of the plurality of internal support type clamps. An airway control component, such as a gas valve, may be provided in the adapter connector 42 shown in fig. 12 to allow for individual control of the evacuation or inflation of each of the internal bracing clamps. Of course, in order to realize the independent control of the air suction or inflation of the plurality of internal-support clamps, the plurality of internal-support clamps with the air supply interfaces 6 can be directly connected through the connecting part 4, at this time, the air passage control part can be arranged between the air supply interfaces and the air inflation and deflation devices, and the air passage control parts are controlled to control the air suction or inflation of the corresponding internal-support clamps.

In some embodiments, as shown in fig. 13 and 14, the internal stay type clamp further includes a bracket 7, and the bracket 7 is connected with the connecting part 4 for connecting another clamp. The combination including the bracket can be seen as a "parallel" use of multiple clamps compared to the former combination. At the moment, the air bag of each internal support type clamp only needs to partially cover the horizontal outer side of the supporting component, an integral type clamp matched with actual use needs is formed by selecting and combining the support and the plurality of clamps, and a plurality of contact points or contact surfaces are formed by the integral type clamp and the inner side surface of an object to be clamped. As shown in fig. 13 and 14, the three internal-supporting clamps are connected by the bracket 7, and the combined integral clamp can form three contact surfaces with the inner side surface of the object to be clamped. FIG. 13 is a front view of the internally bracing clip assembly when it is collapsed for use, and FIG. 14 is a front view of the internally bracing clip assembly shown in FIG. 13 when it is expanded for use. For an object to be clamped with a large inner size, the combination mode of parallel use does not need to carry out complex design on a single internal support type clamp, and a proper integral clamp is combined by means of a flexible and changeable support. Further, the bracket has a dimension adjusting function, such as adjusting the size of the bracket through the length change of the bracket connecting arm.

In some embodiments, the air passages of the plurality of inner-supporting jigs may be communicated, for example, the main air passages of the plurality of inner-supporting jigs may be directly connected, or the air supply interfaces of the plurality of inner-supporting jigs may be directly connected, and at this time, the air suction or the air inflation of the plurality of inner-supporting jigs may be completed by using one air-inflating and-deflating device. And for the integral clamp formed by combining the plurality of internal support type clamps communicated with the air passage, the integral clamp also comprises an air passage control component for controlling the communication of the air passages of the plurality of internal support type clamps. The air hole control part can be arranged at the air passage connection part of the internal support type clamps and also can be arranged at the air supply interface connection part of the internal support type clamps.

For the combination of multiple clamps mentioned above into a unitary clamp, the individual independent clamps may be of the same type or of different types, and may include both internally and externally supported clamps. And the single independent clamp can also be an independent combined clamp, and the embodiment of the application is not limited. For example, a "tandem" of individual integrated clamps may be added in combination with a "parallel" of individual integrated clamps. The dimensions of the first elastic member 2, the support member 3, the connecting member 4, and the bracket 7 according to the embodiment of the present application may be selected in different specifications and combinations according to different objects to be gripped.

In some embodiments, the internal bracing clamp may further include a telescoping mechanism 10, as shown in fig. 15, 16.

The support member 3 may be connected to the telescopic mechanism 10 directly or through a connecting member 4 or the like. So that the first elastic member 2 can move with the extension and contraction of the extension and contraction mechanism 10. For example, as shown in fig. 15 and 16, the connecting member 4 may be connected to the telescopic end of the telescopic mechanism 10 by a screw connection structure, so that the first elastic member 2 can move with the telescopic mechanism.

Illustratively, the telescoping mechanism 10 may be a telescoping rod, such as an electric telescoping rod, a hydraulic telescoping rod, a pneumatic telescoping rod, or the like.

In some embodiments, the connecting member 4 may form part of the telescopic mechanism 10. Illustratively, the connecting member 4 may be a part on the telescopic end of the telescopic mechanism. For example, the connecting member 4 may be part of the telescopic end of a telescopic rod.

Through setting up internal stay formula anchor clamps into the telescopic form, can realize that the article under the special scene are got and are got. For example, when the objects to be gripped are densely stacked and part of the objects are lower than the height of the objects around the objects (for example, densely stacked bottled objects), the objects are not suitable for being gripped directly from the outside by the gripper because there is not enough space, and the middle part of the objects cannot be gripped in batch by the internal support type gripper because the height of the middle part of the objects is low, and the internal support type gripper can be extended and contracted by arranging the telescopic mechanism 10, so that batch gripping of the densely stacked objects is completed under the above conditions.

In some embodiments, the support member 3 is attached to the cushion structure 20 directly or through the connecting member 4 or the like. For example, as shown in fig. 17, the connecting member 4 is directly connected to the cushion structure 20. The buffer structure 20 may also be connected to the connecting member 4 by the telescopic mechanism 10. The cushioning structure 20 may be a unitary structure with the telescoping mechanism 10, as shown in fig. 18. For example, the connecting member 4 is connected to one end of the telescopic mechanism, and the other end of the telescopic mechanism is connected to the buffer structure 20.

When the clamp is acted by external force, the buffer structure 20 can play a role of buffering to protect the clamp and the object to be clamped. For example, when the internal bracing type clamp extends into the object to be clamped, the first elastic member 2 collides with the object to be clamped due to inaccurate positioning, and the buffer structure 20 can play a role in buffering to protect the clamp and the object to be clamped.

Illustratively, the buffer structure 20 may be a buffer, a cushion pad, a buffer sheet, a buffer spring, or the like. The buffer can also be a buffer which can be automatically adjusted, and when the collision stress of the first elastic part 2 and the object to be clamped exceeds a preset threshold value, the buffer can be automatically contracted. Illustratively, the buffer structure 20 includes a telescoping mechanism, a pressure sensor, and a controller; telescopic machanism and pressure sensor are connected with the controller, and support component 3 connects on telescopic machanism, and pressure sensor sets up in the junction of support component 3 and telescopic machanism. The telescopic mechanism can be an electric telescopic rod, a hydraulic telescopic rod, a pneumatic telescopic rod and the like. When the first elastic part 2 collides with the object to be clamped and the stress exceeds a preset threshold value, the telescopic mechanism automatically contracts.

Illustratively, the cushioning structure 20 may also be a cushioning member. Such as a spring pad, a spring plate, a spring, etc.

In some cases (e.g., batch picking), if the internal stay gripper does not extend into the item to be picked, there is a possibility of damage to the item or the gripper. Through the arrangement of the buffer structure 20 (such as a spring, or other reasonable structures such as a telescopic rod and the like), the internal support type clamp can be passively contracted, and can be retracted when touching an article, so that possible damage to the article is reduced. In addition, when an object is gripped in a batch (e.g., a matrix type of gripping work) there may be a case where the work guide is not entered. For example, there may be 59 that can be inserted, but 1 that cannot be inserted, for 60 parts. In this way, 59 of the inserted workpieces can be removed by means of the buffer structure without damaging the inserted workpiece. Furthermore, the first elastic element 2 can be protected by providing the buffer structure 20. Specifically, when the first elastic member 2 extends into the object to be gripped, if the first elastic member 2 encounters a relatively large resistance force due to incorrect positioning or excessive insertion, and the resistance force is not buffered, a destructive force is formed, and the first elastic member 2 is damaged due to increased friction of the first elastic member 2.

The beneficial effects that may be brought by the embodiments of the present application include, but are not limited to:

the internal support type clamp has the advantages of small volume, light weight, simple structure and low manufacturing cost, and can clamp objects with different sizes and similar shapes in a certain range due to the soft property of the silica gel air bag, and does not damage the clamped objects; the ring-shaped and bottle-shaped fragile and soft objects can be clamped quickly and stably without damaging the surfaces of the objects. After the clamp with the first elastic part of the internal support type clamp extends into the inner cavity of the object, the first elastic part expands to be attached to the inner surface of the object, and the object to be clamped can be clamped from the inside; furthermore, the first elastic part can be conformal, local stress concentration cannot be generated, and the inner surface of the object is not easy to damage. Furthermore, the air pressure in the air bag is adjustable, namely the force of the inner support can be adjusted, and thin-walled or easily damaged workpieces can be safely picked up; further, even if the pneumatic system is overloaded or the pneumatic system is not accurately positioned and collides, the articles cannot be damaged; further, when waiting to press from both sides and getting object medial surface for complicated profile, benefit from the characteristic that silica gel can produce very big deformation, need not carry out complicated design in advance, also can effectively laminate, realize pressing from both sides and get. In addition, the buffer structure is arranged to protect the clamp and reduce the possible damage to the article.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. An internal support type clamp with a buffer structure is characterized by comprising the buffer structure (20) and a clamp head (100) connected with the buffer structure (20);

wherein the clamp head (100) comprises a first elastic piece (2) and a support part (3);

the first elastic piece (2) is arranged on the supporting component (3) in a sealing mode in a mode of covering part or all of the outer side of the supporting component (3);

a first air channel (1) is arranged on the first elastic piece (2) and/or the supporting component (3); in the mounting state, the first air channel (1) is communicated with the inflation and deflation device, so that the first elastic piece (2) can expand outwards under the action of the inflation and deflation device.

2. The internally supporting jig with a buffering structure as claimed in claim 1, wherein the buffering structure (20) is a buffer or an elastic buffer.

3. The internally supporting jig with a buffering structure according to claim 1, wherein the buffering structure (20) comprises a telescoping mechanism (10), a pressure sensor and a controller;

the telescopic mechanism (10) and the pressure sensor are connected with the controller, the supporting part (3) is connected to the telescopic mechanism (10), and the pressure sensor is arranged at the joint of the supporting part (3) and the telescopic mechanism (10).

4. The internally-supporting clamp with the buffering structure as claimed in claim 1, 2 or 3, wherein the first elastic member (2) is made of silicone or rubber.

5. Internal stay clamp with buffer structure according to claim 1, 2 or 3 characterized in that a reinforcement structure (9) is provided on the outer and/or inner wall of the first spring (2).

6. The internally-supporting jig with a buffering structure as claimed in claim 5, wherein the reinforcing structure (9) comprises at least one of a rib or a rough surface formed on the first elastic member (2).

7. The internally supporting jig with a buffering structure as set forth in claim 6, wherein the reinforcing ribs are at least one of strip-shaped protrusions, wave-shaped protrusions and saw-toothed protrusions.

8. The internally-supporting jig with a buffering structure as claimed in claim 6, wherein a texture and/or micro-protrusions are provided on the first elastic member (2) so that the outer wall and/or inner wall surface of the first elastic member (2) is formed as the rough surface.

9. The internally-supporting clamp with the buffering structure according to claim 1, 2 or 3, wherein at least one of a wear-resistant layer, a trace-resistant layer, an oil-resistant layer or an antistatic layer is disposed on the outer wall of the first elastic member (2).

10. The internally-supporting clamp with the buffering structure as claimed in claim 1, 2 or 3, wherein in the installed state, the waist part of the first elastic member (2) is concave; or, in the installed state, the first elastic element (2) is conformal.

11. The internally-supporting jig with a buffering structure as claimed in claim 1, 2 or 3, wherein the supporting member (3) is formed with an inner recess (33) at its middle portion so that an inner cavity can be formed between the first elastic member (2) and the outside of the supporting member (3).

12. The internally-supporting jig with a shock-absorbing structure according to claim 1, 2 or 3, characterized in that an engaging portion (31) is provided on the support member (3);

in the mounted state, the end of the first elastic element (2) is engaged with the engaging portion (31) so that the first elastic element (2) is hermetically provided on the support member (3) so as to cover a part or all of the outer side of the support member (3).

13. Internally bracing clamp with buffer structure according to claim 1, 2 or 3, wherein the support part (3) is detachably connected with the buffer structure (20) by a screw connection and/or a snap connection so that the clamp head (100) is detachably connected on the buffer structure (20).

14. The internally-supporting jig with a buffering structure according to claim 1, 2 or 3, characterized in that the jig head (100) further comprises a connecting member (4);

the supporting part (3) is connected with the connecting part (4) through a first detachable connecting structure; the connecting part (4) is connected with the buffer structure (20) through a second detachable connecting structure; so that the clamp head (100) is detachably connected to the cushioning structure (20).

15. The internally bracing clamp with cushion structure according to claim 14, wherein the first detachable connection structure and the second detachable connection structure are a threaded connection structure and/or a snap connection structure.

16. The internally bracing clamp with a buffering structure according to claim 14, wherein the connecting part (4) comprises an upper connecting part (44) for connecting with the buffering structure (20), a lower connecting part (45) for connecting with the supporting part (3) and a crimping part (46);

the crimp portion (46) is a protruding portion formed between the upper connection portion (44) and the lower connection portion (45) in such a manner as to protrude radially outward;

in the mounted state, the crimping portion (46) is capable of pressing the first elastic member (2) against the support member (3) to ensure the tightness between the first elastic member (2) and the support member (3).

17. The internally-supporting jig with a shock-absorbing structure as set forth in claim 14, wherein a second air passage is provided in the connecting member (4);

in the installation state, the second air passage is communicated with the first air passage (1) to form an air passage.

18. The internally-supporting jig with a buffering structure according to claim 1, 2 or 3, characterized in that the jig head (100) further comprises a sealing member (5);

the sealing part (5) is arranged at the joint of the first elastic piece (2) and the supporting part (3).