Vacuum adsorption device

Abstract

The utility model discloses a vacuum adsorption device which comprises an assembly bottom plate, a plurality of groups of adsorption fixing components and a plurality of groups of buffer limiting components. The adsorption fixing assembly comprises an assembly fixing part, a guide rod is slidably assembled in the assembly fixing part, the lower end of the guide rod is sleeved with a connecting air guide part, and the lower portion of the connecting air guide part is sleeved with an elastic suction nozzle. The buffering limiting assembly comprises a buffering air cylinder, a compression piston block is assembled in the buffering air cylinder in a sliding mode, the compression piston block is fixedly assembled above the guide rod, a plurality of evenly-distributed second damping exhaust holes are formed in the outer side of the compression piston block, and a supporting spring is arranged between the compression piston block and the buffering air cylinder. According to the vacuum adsorption device disclosed by the utility model, the buffer limiting assembly is arranged, so that the compression and reset states of the vacuum suction nozzle can be buffered and limited, the adverse effect of the vacuum suction nozzle on the vacuum adsorption state in the compression and reset processes is reduced, and the use reliability of the vacuum adsorption device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum adsorption and transportation, and particularly relates to a vacuum adsorption device. Background Art

[0002] A vacuum suction device is a device that uses a vacuum between the suction cup and the object to transport and transfer objects. It usually uses the vacuum pressure generated by a vacuum pump or vacuum generator as the power source. It is suitable for electronic and electrical production and product packaging, especially for objects with smooth surfaces that are not suitable for clamping and transportation.

[0003] Among them, FPC (flexible circuit board) refers to a printed circuit made of flexible insulating base material. During the FPC production and processing, a vacuum adsorption device is also used to adsorb and transport the FPC. The vacuum adsorption device plays a vital role in the automated production of FPC.

[0004] Currently, the common vacuum adsorption device for adsorbing and transporting FPC is mainly composed of a mobile transport component, a vacuum generating system, a nozzle fixing plate and a vacuum nozzle. In actual application, the movement is controlled by the mobile transport component, and the vacuum generating system is used to control the vacuum nozzle to generate vacuum pressure, thereby realizing vacuum adsorption and transport of FPC.

[0005] The vacuum nozzle is the key to the stable operation of the vacuum suction device. In order to ensure that the vacuum suction nozzle can fully contact the FPC, most vacuum suction nozzles in the existing technology use a sleeve spring to provide the suction nozzle with telescopic movement space, thereby ensuring that the vacuum suction nozzle can fully contact the FPC. However, since the spring does not have a buffering function in actual application, the vacuum suction device is prone to rebounding during the process of vacuum suction and lifting and transporting, resulting in vacuum suction failure. At the same time, the spring does not have a buffering function, which makes it easy for the vacuum suction nozzle to have a large downward force during the downward pressure adsorption process, causing the contact position between the FPC and the vacuum suction nozzle to deform, making the vacuum suction device less reliable in vacuum suction and transportation of the FPC.

[0006] Therefore, in view of the above technical problems, it is necessary to provide a vacuum adsorption device.

[0007] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0008] The purpose of the utility model is to provide a vacuum adsorption device, which can play a buffering and limiting role on the vacuum suction nozzle, thereby improving the reliability of the vacuum adsorption device in vacuum adsorption and transportation of FPC.

[0009] In order to achieve the above-mentioned purpose, a specific embodiment of the present invention provides a vacuum adsorption device, including: an assembly base plate, multiple groups of adsorption and fixing components, and multiple groups of buffer and limit components.

[0010] Multiple groups of the adsorption and fixing components are fixedly assembled under the assembly base plate. The adsorption and fixing components include assembly fixing parts. The assembly fixing parts are arranged through the assembly base plate. A guide rod is slidably assembled in the assembly fixing parts. The lower end of the guide rod is fitted with a connecting air guide part, and an elastic suction nozzle is fitted under the connecting air guide part.

[0011] Multiple groups of the buffer limit assemblies are assembled above the assembly base plate, and the buffer limit assemblies include a buffer gas cylinder, which is fixedly assembled above the assembly fixing part. A compression piston block is slidably assembled in the buffer gas cylinder, and the compression piston block is fixedly assembled above the guide rod. A plurality of evenly distributed second damping exhaust holes are provided on the outer side of the compression piston block, and a support spring is arranged between the compression piston block and the buffer gas cylinder.

[0012] In one or more embodiments of the present invention, a plurality of assembly holes are provided above the assembly base plate, the plurality of assembly holes being provided corresponding to a plurality of adsorption and fixing components, and the assembly fixing member passing through the assembly arrangement. The provision of the assembly holes provides an assembly foundation for the adsorption and fixing components.

[0013] In one or more embodiments of the present invention, the assembly fixture consists of a base and a threaded sleeve. The base is fixedly assembled below the threaded sleeve, and an external thread is provided on the outer side of the threaded sleeve.

[0014] In one or more embodiments of the present invention, a fixing nut is threadedly connected to the outer side of the threaded sleeve, and the fixing nut and the base are respectively arranged on the upper and lower sides of the assembly base. The fixing nut and the base cooperate with each other to fix the assembly fixture to the assembly base.

[0015] In one or more embodiments of the present invention, the connecting air guide piece is composed of an air guide block, an air inlet nozzle air delivery pipe and a sleeve connecting piece, the air inlet nozzle is fixedly assembled on one side of the air guide block, the air delivery pipe is integrally formed below the air guide block, and the connecting air guide piece is sleeved on the outside of the air delivery pipe.

[0016] In one or more embodiments of the present invention, the air guide block is hollow, the air inlet nozzle and the air delivery pipe are both connected to the air guide block, the set connector is fixedly assembled above the air guide block, and the set connector is set below the guide rod.

[0017] In one or more embodiments of the present invention, a return spring is mounted below the guide rod and disposed between the assembly fixture and the connecting air guide. The contraction and return of the return spring support and reset the connecting air guide. A buffer airbag cushion is mounted outside the return spring, with its ends connected to the assembly fixture and the connecting air guide, respectively. The buffer airbag cushion provides cushioning, support, and position limiting for the connecting air guide.

[0018] In one or more embodiments of the present invention, the outer side of the airbag cushion is provided with a plurality of evenly distributed first damping vent holes. The first damping vent holes provide electrical communication between the inner and outer sides of the airbag cushion. The diameter of one end of each of the plurality of first damping vent holes within the airbag cushion is smaller than the diameter of the other end. This facilitates the air within the airbag cushion to be discharged through the first damping vent holes at a velocity that is lower than the velocity of the air entering the cushion, thereby buffering the airbag cushion from contraction.

[0019] In one or more embodiments of the present invention, a closure cap is fixedly connected to each of the upper and lower ends of the buffer gas cylinder. The closure cap serves to seal and limit the buffer gas cylinder. The compression piston block divides the buffer gas cylinder into a compression chamber and a return chamber, and the support spring is disposed within the compression chamber. The compression piston block is buffered and limited by changes in the volume of the compression and return chambers.

[0020] In one or more embodiments of the present invention, the ends of the plurality of second damping exhaust holes are connected to the compression chamber and the reset chamber, respectively. The plurality of second damping exhaust holes connect the compression chamber and the reset chamber. The diameter of the plurality of second damping exhaust holes at one end of the compression chamber is larger than that at the other end. This facilitates controlling the extrusion and exhaust state of the compression piston block through the second damping exhaust holes, thereby providing a buffered position limit for the compression piston block.

[0021] Compared with the prior art, the vacuum adsorption device disclosed in the present invention can buffer and limit the compression and reset states of the vacuum suction nozzle by setting a buffer limit component, thereby reducing the adverse effects of the vacuum suction nozzle on the vacuum adsorption state during the compression and reset process, and improving the reliability of the vacuum adsorption device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some of the embodiments described in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts.

[0023] Figure 1 This is a three-dimensional diagram of a vacuum adsorption device in one embodiment of the present utility model;

[0024] Figure 2 This is a front cross-sectional view of a vacuum adsorption device in one embodiment of the present utility model;

[0025] Figure 3 for Figure 2 Schematic diagram of the structure at A in the middle;

[0026] Figure 4 for Figure 2 Schematic diagram of the structure at B in the middle;

[0027] Figure 5 This is a partial structural diagram of a vacuum adsorption device in one embodiment of the present utility model;

[0028] Figure 6 for Figure 5 Schematic diagram of the structure at point C in the middle.

[0029] Description of main reference numerals:

[0030] 1-Assembly base plate, 2-Adsorption fixing component, 201-Assembly fixing part, 2011-Base, 2012-Threaded sleeve, 202-Guide rod, 203-Connecting air guide part, 2031-Air guide block, 2032-Air inlet nozzle, 2033-Air delivery pipe, 2034-Suited connecting part, 204-Elastic suction nozzle, 205-Fixing nut, 206-Reset spring, 207-Buffer airbag cushion, 208-First damping exhaust hole, 3-Buffer limiting component, 301-Buffer air cylinder, 302-Compression piston block, 303-Second damping exhaust hole, 304-Support spring, 305-Closing cover, 306-Compression chamber, 307-Reset chamber. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0032] like Figures 1 to 6 As shown, a vacuum adsorption device in one embodiment of the present invention includes: an assembly base plate 1, multiple groups of adsorption and fixing components 2, and multiple groups of buffer and limit components 3.

[0033] Specifically, a plurality of assembly holes are provided on the top of the assembly base plate 1, and the plurality of assembly holes are provided corresponding to the plurality of adsorption and fixing components 2, and the assembly fixing piece 201 passes through the assembly arrangement. The assembly holes provide an assembly basis for the adsorption and fixing components 2.

[0034] like Figures 1 to 6 As shown, multiple adsorption and fixing components 2 are fixedly assembled below the assembly base 1. The adsorption and fixing components 2 include assembly fixing parts 201, which are set through the assembly base 1. The assembly fixing parts 201 play the role of assembly limit and movement guide for the guide rods 202 and the connecting air guide parts 203.

[0035] like Figures 5 and 6 As shown, the assembly fixture 201 consists of a base 2011 and a threaded sleeve 2012 . The base 2011 is fixedly assembled below the threaded sleeve 2012 , and an external thread is provided on the outer side of the threaded sleeve 2012 .

[0036] like Figures 5 and 6 As shown, the outer side of the threaded sleeve 2012 is threadedly connected with a fixing nut 205, and the fixing nut 205 and the base 2011 are respectively arranged on the upper and lower sides of the assembly base 1. The assembly fixture 201 is fixedly assembled with the assembly base 1 through the mutual cooperation of the fixing nut 205 and the base 2011.

[0037] like Figures 2 to 4 As shown, a guide rod 202 is slidably mounted in the assembly fixture 201. The guide rod 202 plays a role in assembling and fixing the connecting air guide 203. At the same time, the elastic suction nozzle 204 can be buffered and limited by buffering the guide rod 202.

[0038] like Figures 2 to 4As shown, the lower end of the guide rod 202 is covered with a connecting air guide 203. The connecting air guide 203 plays the role of connecting the guide rod 202 and the elastic suction nozzle 204, making it easy to conduct the elastic suction nozzle 204 through the connecting air guide 203.

[0039] like Figures 2 to 3 As shown, the connecting air guide part 203 is composed of an air guide block 2031, an air inlet nozzle 2032, an air delivery pipe 2033 and a set connecting part 2034. The air inlet nozzle 2032 is fixedly assembled on one side of the air guide block 2031, the air delivery pipe 2033 is integrally formed below the air guide block 2031, and the connecting air guide part 203 is set on the outside of the air delivery pipe 2033.

[0040] It is worth noting that the air guide block 2031 is hollow, the air inlet nozzle 2032 and the air delivery pipe 2033 are both connected to the air guide block 2031, the set connector 2034 is fixedly assembled above the air guide block 2031, and the set connector 2034 is set below the guide rod 202.

[0041] Specifically, the air inlet nozzle 2032 is externally connected to a vacuum pump or a vacuum generator during actual application.

[0042] like Figures 2 to 3 As shown, an elastic suction nozzle 204 is provided below the air guide 203. The elastic suction nozzle 204 is used to vacuum adsorb objects.

[0043] like Figures 2 to 3 As shown, a return spring 206 is sleeved below the guide rod 202, and the return spring 206 is arranged between the assembly fixture 201 and the connecting air guide 203. The connecting air guide 203 is supported and reset by the contraction and reset of the return spring 206.

[0044] like Figures 2 to 3 As shown, a buffer airbag cushion 207 is sheathed on the outer side of the return spring 206, and the two ends of the buffer airbag cushion 207 are respectively connected to the assembly fixing member 201 and the connecting air guide 203. The buffer airbag cushion 207 plays a role of buffering, supporting and limiting the connecting air guide 203.

[0045] like Figures 2 to 3 As shown, the outer side of the airbag cushion 207 is provided with a plurality of evenly distributed first damping vent holes 208. The first damping vent holes 208 provide electrical communication between the inner and outer sides of the airbag cushion 207. The diameter of the first damping vent holes 208 at one end within the airbag cushion 207 is smaller than that at the other end. This ensures that the air within the airbag cushion 207, when discharged through the first damping vent holes 208, has an exhaust velocity that is lower than the intake velocity, thereby buffering the airbag cushion 207 from contraction.

[0046] like Figures 2 to 6 As shown, multiple groups of buffer limiter assemblies 3 are assembled above the assembly base 1. The buffer limiter assemblies 3 include a buffer gas cylinder 301, which is fixedly assembled above the assembly fixture 201. The buffer gas cylinder 301 plays a buffering and limiting role for the compression piston block 302.

[0047] like Figure 5 As shown, the upper and lower ends of the buffer cylinder 301 are fixedly connected with a closing cover 305. The closing cover 305 plays a role of closing and limiting the buffer cylinder 301.

[0048] like Figures 2 to 6 As shown, a compression piston block 302 is slidably mounted in the buffer cylinder 301, and the compression piston block 302 is fixedly mounted above the guide rod 202. The guide rod 202 is buffered and limited by the compression piston block 302.

[0049] like Figures 2 to 4 As shown, the compression piston block 302 divides the buffer cylinder 301 into a compression chamber 306 and a reset chamber 307, and the support spring 304 is arranged in the compression chamber 306. The compression piston block 302 is buffered and limited by the change in the volume of the compression chamber 306 and the reset chamber 307.

[0050] like Figures 2 to 4 As shown, a plurality of evenly distributed second damping exhaust holes 303 are provided on the outer side of the compression piston block 302. The compression chamber 306 and the reset chamber 307 are connected and conducted through the plurality of second damping exhaust holes 303.

[0051] like Figures 2 to 4 As shown, two ends of the plurality of second damping exhaust holes 303 are respectively connected to the compression chamber 306 and the reset chamber 307. The compression chamber 306 and the reset chamber 307 are connected and conducted through the plurality of second damping exhaust holes 303.

[0052] It is worth noting that the diameter of the plurality of second damping exhaust holes 303 at one end of the compression chamber 306 is larger than that at the other end, so as to facilitate controlling the extrusion exhaust state of the compression piston block 302 through the second damping exhaust holes 303, thereby buffering and limiting the compression piston block 302.

[0053] like Figures 2 to 4 As shown, a support spring 304 is arranged between the compression piston block 302 and the buffer gas cylinder 301. The compression piston block 302 is supported and reset by the contraction and reset of the support spring 304.

[0054] During specific use, the assembly fixing part 201 is assembled through the assembly hole on the assembly base plate 1, and the assembly fixing part 201 is fixedly connected to the assembly base plate 1 by threading the fixing nut 205 and the threaded sleeve 2012. The elastic suction nozzle 204 is assembled under the connecting air guide part 203 by plugging, and the air inlet nozzle 2032 is connected to the vacuum pump or vacuum generator, so that the vacuum system is connected to the elastic suction nozzle 204.

[0055] When the elastic suction nozzle 204 presses down and absorbs the transported object, the return spring 206 will be compressed under the action of the assembly fixture 201. At this time, the buffer airbag cushion 207 will deform accordingly with the movement of the assembly fixture 201, and the gas in the buffer airbag cushion 207 can be discharged along the first damping exhaust hole 208. Since the diameter of the first damping exhaust hole 208 at one end of the buffer airbag cushion 207 is smaller than the diameter at the other end, the exhaust speed of the buffer airbag cushion 207 is greater than the intake speed. By controlling the exhaust speed of the buffer airbag cushion 207, the buffer airbag cushion 207 can assist the return spring 206 to buffer and limit the downward pressing process of the elastic suction nozzle 204.

[0056] At the same time, the compression piston block 302 will compress the compression chamber 306 under the action of the guide rod 202, and connect the compression chamber 306 and the reset chamber 307 through the second damping exhaust hole 303, and the gas reflux state of the compression chamber 306 and the reset chamber 307 is connected through the second damping exhaust hole 303 to assist in buffering and limiting the compression piston block 302 and the guide rod 202.

[0057] When the elastic suction nozzle 204 returns to its original position after suction, outside air can flow back into the buffer airbag cushion 207 through the first damping exhaust hole 208. The return of the buffer airbag cushion 207 and the return spring 206 assists in resetting the connecting air guide 203. At the same time, the compression piston block 302 returns to its original position under the action of the support spring 304. During the rebound process of the compression piston block 302, the multiple second damping exhaust holes 303 limit the air in the compression chamber 306 and the return chamber 307, thus buffering and limiting the compression piston block 302. By limiting the downward pressure and return state of the elastic suction nozzle 204, the reliability of the vacuum suction device is improved.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0059] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A vacuum adsorption device, characterized in that: include: Assemble the base plate; Multiple groups of adsorption and fixing components are fixedly assembled below the assembly base, and the adsorption and fixing components include assembly fixing parts, which are arranged through the assembly base, and a guide rod is slidably assembled in the assembly fixing parts. The lower end of the guide rod is sleeved with a connecting air guide, and the lower end of the connecting air guide is sleeved with an elastic suction nozzle; Multiple groups of buffer limit assemblies are assembled above the assembly base plate. The buffer limit assemblies include a buffer gas cylinder, which is fixedly assembled above the assembly fixing piece. A compression piston block is slidably assembled in the buffer gas cylinder, and the compression piston block is fixedly assembled above the guide rod. A plurality of evenly distributed second damping exhaust holes are provided on the outer side of the compression piston block, and a support spring is arranged between the compression piston block and the buffer gas cylinder.

2. A vacuum adsorption device according to claim 1, characterized in that: A plurality of assembly holes are provided above the assembly base plate, and the plurality of assembly holes are arranged corresponding to a plurality of groups of adsorption and fixing components, and the assembly fixing parts penetrate the assembly arrangement.

3. A vacuum adsorption device according to claim 1, characterized in that: The assembly fixing piece consists of a base and a threaded sleeve. The base is fixedly assembled below the threaded sleeve, and an external thread is provided on the outer side of the threaded sleeve.

4. A vacuum adsorption device according to claim 3, characterized in that: The outer side of the threaded sleeve is threadedly connected with a fixing nut, and the fixing nut and the base are respectively arranged on the upper and lower sides of the assembly base plate.

5. The vacuum adsorption device according to claim 1, characterized in that: The connecting air guide piece consists of an air guide block, an air inlet nozzle air delivery pipe and a sleeve connecting piece. The air inlet nozzle is fixedly assembled on one side of the air guide block, the air delivery pipe is integrally formed below the air guide block, and the connecting air guide piece is sleeved on the outside of the air delivery pipe.

6. A vacuum adsorption device according to claim 5, characterized in that: The air guide block is hollow, the air inlet nozzle and the air delivery pipe are both connected to the air guide block, the set connector is fixedly assembled above the air guide block, and the set connector is set below the guide rod.

7. The vacuum adsorption device according to claim 1, characterized in that: A return spring is provided below the guide rod and arranged between the assembly fixing part and the connecting air guide part. A buffer airbag cushion is provided on the outside of the return spring and the two ends of the buffer airbag cushion are respectively connected to the assembly fixing part and the connecting air guide part.

8. The vacuum adsorption device according to claim 7, characterized in that: A plurality of evenly distributed first damping exhaust holes are provided on the outer side of the buffer airbag cushion, and the diameter of one end of the plurality of first damping exhaust holes located inside the buffer airbag cushion is smaller than the diameter of the other end.

9. The vacuum adsorption device according to claim 1, characterized in that: The upper and lower ends of the buffer gas cylinder are fixedly connected with closing covers. The compression piston block divides the buffer gas cylinder into a compression chamber and a reset chamber. The support spring is arranged in the compression chamber.

10. The vacuum adsorption device according to claim 9, characterized in that: Both ends of the plurality of second damping exhaust holes are respectively connected to the compression chamber and the reset chamber, and the diameter of the plurality of second damping exhaust holes at one end of the compression chamber is larger than the diameter at the other end.

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