Ultra-thin porous vacuum chuck and numerical control machine tool

Abstract

The utility model discloses an ultra-thin porous vacuum chuck and a numerical control machine tool, the ultra-thin porous vacuum chuck comprises a chuck body, a connecting pipeline and a negative pressure maintaining device, the chuck body is provided with a plurality of suction holes and a vacuum cavity, the vacuum cavity is communicated with the suction holes, the suction holes are used for sucking workpieces, the connecting pipeline is arranged on the chuck body, and the negative pressure maintaining device is arranged on the connecting pipeline. The connecting pipeline extends outwards from the suction cup body and is used for being communicated with the vacuum cavity, the negative pressure maintaining device is provided with a negative pressure cavity, the negative pressure cavity is communicated with a negative pressure source, and the negative pressure cavity is communicated with the vacuum cavity through the connecting pipeline. The height of the suction cup can be greatly reduced, an avoiding space can be provided for machining of a workpiece, and the suction cup is simple in structure, convenient to disassemble and assemble, convenient to use and high in practicability.

Description

Technical Field

[0001] The present application relates to the technical field of porous vacuum suction cups, and more specifically, to an ultra-thin porous vacuum suction cup and a CNC machine tool. Background Art

[0002] In the traditional machining industry, workpiece clamping requires the use of 502, AB glue, double-sided tape, pressure plates, vises, sealing strip suction cups and other processes. Not only is the clamping process cumbersome, but the efficiency is also very low. Especially when encountering single parts or a small number of diverse parts processing, a lot of tooling / fixture design, processing and assembly are wasted, which is very costly.

[0003] A porous vacuum suction cup is disclosed in Chinese patent application No. 202310665291.5, which is a device that uses the vacuum principle to adsorb, move or fix objects. The device includes a suction cup seat body. At this time, the suction cup seat body is configured as a multi-layer structure, which is sequentially configured from top to bottom as a high-precision rubber plate layer and an adsorption main board layer. A vacuum pressure maintaining cavity layer is provided in the adsorption main board layer; the vacuum pressure maintaining cavity layer is interconnected with multiple groups of air storage chambers.

[0004] Its defect is at least that: from top to bottom, there are adsorption main board layer, multiple groups of air storage chambers and vacuum pressure holding cavity layer, and the air storage chamber and vacuum pressure holding cavity layer are stacked, resulting in the height of the suction cup being high, which may interfere with the cutting of the workpiece during the machining process.

[0005] Therefore, the existing technology needs to be improved. Utility Model Content

[0006] The purpose of this application is to provide an ultra-thin porous vacuum suction cup and a CNC machine tool, aiming to solve the technical problem of how to provide an ultra-thin porous vacuum suction cup in the prior art.

[0007] To achieve the above objectives, the technical solution adopted in this application is:

[0008] In a first aspect, the present application provides an ultra-thin porous vacuum suction cup, comprising:

[0009] A suction cup body, wherein the suction cup body has a plurality of suction holes and a vacuum cavity, wherein the vacuum cavity is connected to the suction holes, and the suction holes are used to absorb the workpiece;

[0010] a connecting pipe, the connecting pipe being provided on the suction cup body and extending outward from the suction cup body, the connecting pipe being used to communicate with the vacuum chamber;

[0011] The negative pressure maintainer has a negative pressure chamber, the negative pressure chamber is connected to the negative pressure source, and the negative pressure chamber is connected to the vacuum chamber through the connecting pipe.

[0012] In one embodiment, the suction cup body comprises:

[0013] A suction cup base, wherein the vacuum chamber is provided on the suction cup base, and the vacuum chamber includes a plurality of independent parallel vacuum unit chambers, each of the vacuum unit chambers is connected to an independent connecting pipe, and the vacuum unit chamber is used to communicate with the suction hole;

[0014] A suction cup cover plate, the suction cup cover plate is arranged on the suction cup base, and a plurality of suction holes are opened on the suction cup cover plate;

[0015] A vacuum logic valve is installed on the suction hole.

[0016] In one embodiment, a sealing groove is provided on the top of the suction cup base, a sealing gasket is embedded in the sealing groove, and the sealing gasket is used to seal the suction cup base and the suction cup cover.

[0017] In one embodiment, the vacuum unit chamber comprises:

[0018] a vacuum trunk cavity, the vacuum trunk cavity being in communication with the connecting pipe;

[0019] A plurality of vacuum flow channels are arranged side by side, the vacuum flow channels are communicated with the vacuum trunk cavity, and a row of the suction holes is arranged above the vacuum flow channels.

[0020] In one embodiment, the negative pressure retainer comprises:

[0021] A pressure-maintaining base, wherein the pressure-maintaining base has the negative pressure cavity;

[0022] A pressure-maintaining cover plate, the pressure-maintaining cover plate being sealed and connected to the pressure-maintaining base;

[0023] a negative pressure air inlet pipe, the negative pressure air inlet pipe being connected to the negative pressure chamber and the negative pressure source;

[0024] a movable control valve, the movable control valve being connected to the vacuum unit chamber via the connecting pipe, the movable control valve being used to sequentially open and connect a plurality of the vacuum unit chambers;

[0025] A negative pressure monitoring meter is connected to the pressure maintaining base, and is used to monitor the negative pressure state in the negative pressure chamber.

[0026] In one embodiment, the movable control valve comprises:

[0027] a pneumatic valve body, the pneumatic valve body being arranged in the negative pressure chamber, the pneumatic valve body being provided with a vent pipe connected to the connecting pipe in a one-to-one correspondence;

[0028] A valve body driving source is provided in the negative pressure chamber, and is used to drive the pneumatic valve bodies to open and connect to the vent pipe in sequence.

[0029] In one embodiment, the pneumatic valve body comprises:

[0030] a valve cylinder, the valve cylinder being arranged in the negative pressure chamber, the valve cylinder having a first air inlet hole arranged at one end, and the vent pipes being arranged in sequence along the axial direction at the other end;

[0031] A piston, the piston being cooperatively connected with the valve cylinder;

[0032] A valve stem, one end of which is fixedly connected to the piston, and the other end of which is connected to the valve body drive source. With the help of the drive of the valve body drive source, the valve stem drives the piston to be movably arranged axially in the valve cylinder to realize the sequential opening and connection of the vent pipe.

[0033] In one embodiment, the pneumatic valve body further comprises:

[0034] An exhaust pipe is connected to one end of the valve cylinder away from the vent pipe, and is used for exhausting the negative pressure chamber.

[0035] In one embodiment, the invention further comprises: a suction cup negative pressure detection component, the suction cup negative pressure detection component comprising:

[0036] A detection connector, the detection connector being arranged on the surface of the suction cup body;

[0037] A detection pipe, the detection pipe is fixed to the inner side of the suction cup body and is connected to the detection joint;

[0038] An air pressure sensor is connected to the detection pipeline, and is used to detect the adsorption state of the suction hole when adsorbing the workpiece.

[0039] In the second aspect, the present application provides a CNC machine tool, which includes the ultra-thin porous vacuum suction cup described in the above embodiment, so that the CNC machine tool can have all the characteristics and beneficial effects of the above ultra-thin porous vacuum suction cup, which will not be repeated.

[0040] The ultra-thin porous vacuum chuck and CNC machine tool provided by the present application have at least the following beneficial effects:

[0041] The present application discloses an ultra-thin porous vacuum suction cup and a CNC machine tool, wherein the ultra-thin porous vacuum suction cup comprises: a suction cup body, a connecting pipe, and a negative pressure retainer. The suction cup body has a plurality of suction holes and a vacuum cavity, the vacuum cavity is connected to the suction holes, the suction holes are used to adsorb workpieces, the connecting pipe is provided on the suction cup body, and the connecting pipe extends outward from the suction cup body, the connecting pipe is used to connect to the vacuum cavity, the negative pressure retainer has a negative pressure cavity, the negative pressure cavity is connected to a negative pressure source, and the negative pressure cavity is connected to the vacuum cavity via the connecting pipe. The present application can greatly reduce the height of the suction cup, can provide avoidance space for machining workpieces, has a simple structure, is easy to disassemble and assemble, is easy to use, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0043] Figure 1 A schematic diagram of the structure of an ultra-thin porous vacuum suction cup provided in an embodiment of the present application;

[0044] Figure 2 A disassembly diagram of the ultra-thin porous vacuum suction cup provided in an embodiment of the present application;

[0045] Figure 3 A schematic diagram of the structure of the vacuum unit chamber provided in an embodiment of the present application;

[0046] Figure 4 This is a structural schematic diagram of a specific embodiment of the movable control valve provided in an embodiment of the present application.

[0047] Among them, the reference numerals in the figures are:

[0048] 100, suction cup body; 200, connecting pipe; 300, negative pressure maintainer; 400, suction cup negative pressure detection assembly; 500, CNC machine tool; 110, suction cup base; 120, suction cup cover; 130, vacuum logic valve; 140, suction hole; 111, vacuum chamber; 112, vacuum unit chamber; 113, sealing groove; 114, sealing gasket; 115, vacuum trunk chamber; 116, vacuum flow channel; 310, pressure maintaining base; 320, pressure maintaining cover; 3 30. Negative pressure air inlet pipe; 340. Movable control valve; 350. Negative pressure monitoring meter; 360. Pneumatic valve body; 370. Valve body drive source; 380. Ventilation pipe; 311. Negative pressure chamber; 341. Valve seat; 361. Valve cylinder; 362. Piston; 363. Valve stem; 364. Exhaust pipe; 365. First air outlet; 366. First exhaust hole; 367. First air inlet; 410. Detection joint; 420. Detection pipe; 430. Air pressure sensor. DETAILED DESCRIPTION

[0049] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, the present application 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 only used to explain this application and are not intended to limit this application.

[0050] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be located directly or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and cannot be understood as limitations on this technical solution. The terms "first" and "second" are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0051] Example 1:

[0052] See also Figure 1 and Figure 2This embodiment provides an ultra-thin porous vacuum suction cup, which includes: a suction cup body 100, a connecting pipe 200 and a negative pressure maintainer 300. The suction cup body 100 has multiple suction holes 140 and a vacuum cavity 111. The vacuum cavity 111 is connected to the suction holes 140. The suction holes 140 are used to adsorb workpieces. The connecting pipe 200 is set on the suction cup body 100, and the connecting pipe 200 extends outward from the suction cup body 100. The connecting pipe 200 is used to connect to the vacuum cavity 111. The negative pressure maintainer 300 has a negative pressure cavity 311. The negative pressure cavity 311 is connected to a negative pressure source, and the negative pressure cavity 311 is connected to the vacuum cavity 111 through the connecting pipe 200.

[0053] Regarding the negative pressure chamber 311 of the negative pressure retainer 300, it is used to store a certain amount of negative pressure gas to ensure the strength and stability of the suction force of the suction hole 140. For example, the negative pressure source sequentially passes negative pressure gas through the negative pressure chamber 311 and the vacuum chamber 111 into the suction hole 140, thereby evacuating the air inside the suction hole 140 and creating a negative pressure. The atmospheric pressure outside the suction hole 140 can firmly press the workpiece against the suction cup, thereby achieving the purpose of adsorbing and securing the workpiece.

[0054] A connecting pipe 200 is provided on one side wall of the suction cup body 100. The connecting pipe 200 extends outward from the suction cup body 100 and is connected to the negative pressure retainer 300 at its extended end. The connecting pipe 200 is used to connect the vacuum chamber 111 and the negative pressure chamber 311 to allow air inside the suction hole 140 to be extracted. Thus, by separating the negative pressure chamber 311 from the suction cup body 100 without affecting the suction performance of the suction cup, the height of the suction cup body 100 can be reduced. For example, placing this ultra-thin porous vacuum suction cup on a CNC machine tool 500 can provide clearance for machining workpieces.

[0055] Therefore, the suction cup body 100 of this embodiment is connected to the negative pressure retainer 300 through the connecting pipe 200, so that the negative pressure retainer 300 can be independent of the suction cup body 100, avoiding the stacking of the vacuum chamber 111 and the negative pressure chamber 311, which is equivalent to reducing the height of the negative pressure chamber 311 on the suction cup. Compared with the existing technology, the height of the suction cup can be greatly reduced, and avoidance space can be provided for the machining of the workpiece. The structure is simple, the disassembly and assembly are convenient, the use is convenient, and the practicality is strong.

[0056] Specifically, see Figure 2 and Figure 3The suction cup body 100 includes: a suction cup base 110, a suction cup cover 120 and a vacuum logic valve 130. A vacuum chamber 111 is provided on the suction cup base 110, and the vacuum chamber 111 includes a plurality of independent and parallel vacuum unit chambers 112. The vacuum unit chambers 112 are connected to independent connecting pipes 200 one by one. The vacuum unit chambers 112 are used to communicate with the suction holes 140. The suction cup cover 120 is covered on the suction cup base 110. A plurality of suction holes 140 are opened on the suction cup cover 120, and the vacuum logic valve 130 is installed on the suction holes 140.

[0057] In this embodiment, a vacuum logic valve 130 is installed in a suction hole 140. The function of the vacuum logic valve 130 is that when there is no workpiece on the suction hole 140, the vacuum logic valve 130 is closed to close the suction hole 140, so that the negative pressure gas (actually the suction process, for the purpose of describing the process vividly, it is represented by negative pressure gas) will not escape from the suction hole 140 and be wasted. When there is a workpiece on the suction hole 140, the vacuum logic valve 130 is opened to open the suction hole 140, so that the negative pressure in the suction hole 140 can firmly suck the workpiece.

[0058] In this embodiment, the vacuum chamber 111 includes a plurality of independent and parallel vacuum unit chambers 112, and the vacuum unit chambers 112 are connected to independent connecting pipes 200 one by one. When the amount of negative pressure gas (negative pressure) introduced by the negative pressure source into the negative pressure chamber 311 is constant, each suction hole 140 will evenly distribute the negative pressure in the initial stage. The vacuum unit chamber 112 can make the suction holes 140 on the suction cup body 100 gradually generate negative pressure in different areas. The limited negative pressure gas in the negative pressure chamber 311 is first dispersed to a small part of the suction holes 140, and avoids dispersing the limited negative pressure gas to all the suction holes 140 at one time. In this way, the suction holes 140 have greater suction force in the initial stage of generating negative pressure, thereby improving the negative pressure suction force on the suction holes 140 in the initial stage of adsorption, thereby generating stronger suction force at the initial moment of adsorption of the processed object, and achieving good adsorption effect.

[0059] Specifically, see Figure 3 The vacuum unit chamber 112 includes: a vacuum trunk chamber 115 and a plurality of vacuum flow channels 116 arranged side by side. The vacuum trunk chamber 115 is connected to the connecting pipe 200. The vacuum flow channels 116 are connected to the vacuum trunk chamber 115. A row of suction holes 140 is provided above the vacuum flow channels 116.

[0060] In this embodiment, several side-by-side vacuum channels 116 are connected to the connecting pipe 200 through the vacuum trunk cavity 115. This reduces the length of the fluid flow path, effectively reduces flow resistance, increases fluid velocity, and ensures the stability of the suction force of the suction hole 140. For example, a vacuum cavity 111 is divided into eight independent vacuum unit cavities 112, each of which is connected to the connecting pipe 200. The vacuum unit cavity 112 includes a vacuum trunk cavity 115. Instead of having three vacuum channels 116, each vacuum channel 116 is provided with a row of suction cups above it. Under a certain negative pressure, this ensures that the suction hole 140 has a strong suction force.

[0061] Specifically, see Figure 3 A sealing groove 113 is provided on the top of the suction cup base 110 , and a sealing gasket 114 is embedded in the sealing groove 113 . The sealing gasket 114 is used to seal the suction cup base 110 and the suction cup cover 120 .

[0062] In this embodiment, the suction cup base 110 and the suction cup cover 120 are sealedly connected through a sealing gasket 114. For example, the suction cup base 110 and the suction cup cover 120 can be fixedly connected by multiple bolts, so that the suction cup base 110 and the suction cup cover 120 are sealedly connected, which is convenient for disassembly and assembly and maintenance.

[0063] Specifically, see Figure 2 The negative pressure maintainer 300 includes: a pressure maintaining base 310, a pressure maintaining cover 320, a negative pressure air inlet pipe 330, an active control valve 340 and a negative pressure monitoring gauge 350. The pressure maintaining base 310 has a negative pressure chamber 311. The pressure maintaining cover 320 is sealed and connected to the pressure maintaining base 310. The negative pressure air inlet pipe 330 is connected to the negative pressure chamber 311 and the negative pressure source. The active control valve 340 is connected to the vacuum unit chamber 112 via the connecting pipe 200. The active control valve 340 is used to open and connect several vacuum unit chambers 112 in sequence. The negative pressure monitoring gauge 350 is connected to the pressure maintaining base 310. The negative pressure monitoring gauge 350 is used to monitor the negative pressure state in the negative pressure chamber 311.

[0064] In this embodiment, the pressure-maintaining cover plate 320 is sealed and connected to the pressure-maintaining base 310. The pressure-maintaining base 310 has a negative pressure chamber 311. One end of the negative pressure chamber 311 is connected to the negative pressure source through the negative pressure air inlet pipe 330. The other end of the negative pressure chamber 311 is connected to the vacuum chamber 111 in turn through the movable control valve 340 and the connecting pipe 200. The movable control valve 340 is axially connected to a plurality of connecting pipes 200. The movable control valve 340 is connected to a plurality of vacuum unit chambers 112 in a one-to-one correspondence through the plurality of connecting pipes 200. The movable control valve 340 can be opened and connected in turn to several vacuum unit chambers 112. For example, the vacuum chamber 111 includes 8 vacuum unit chambers 112 arranged side by side. The movable control valve 340 can connect to the first vacuum unit chamber 112, the second vacuum unit chamber 112, the third vacuum unit chamber 112 in turn... until the eighth vacuum unit chamber 112 is connected. When the first vacuum unit cavity 112 is opened and connected, the negative pressure in the negative pressure chamber 311 within the suction cup body 100 is concentrated and supplied to the suction holes 140 connected to the first vacuum unit cavity 112, thereby achieving suction through the suction holes 140 in this area. Similarly, all subsequent vacuum unit cavities 112 can be opened in sequence, and the corresponding vacuum unit cavities 112 are filled with negative pressure gas in turn, until all vacuum unit cavities 112 are filled with negative pressure gas.

[0065] This makes the suction hole 140 have a greater suction force in the initial stage of generating negative pressure, improves the negative pressure suction force on the suction hole 140 in the initial stage of adsorption, and thus can generate a stronger suction force at the initial moment of adsorption of the workpiece, and the adsorption effect is good. At the same time, by opening the connected vacuum unit cavities 112 in sequence, it can be ensured that the suction hole 140 corresponding to each vacuum unit cavity 112 has a relatively strong suction force. Then, as long as more vacuum unit cavities 112 are opened, the adsorption area of the suction cup can be theoretically expanded infinitely. It is particularly convenient for processing large plates and is more practical. Alternatively, multiple suction cup bodies 100 can be connected side by side, and the negative pressure retainer 300 of each suction cup body 100 is independently set outside the suction cup body 100. In this way, a large-area suction cup can be achieved by splicing the suction cup body 100, and the suction cup adsorption effect can be automatically controlled by the negative pressure retainer 300.

[0066] Specifically, see Figure 2 The movable control valve 340 includes: a pneumatic valve body 360 and a valve body driving source 370. The pneumatic valve body 360 is arranged in the negative pressure chamber 311. The pneumatic valve body 360 is provided with a ventilation pipe 380 connected to the connecting pipe 200 in a one-to-one correspondence. The valve body driving source 370 is arranged in the negative pressure chamber 311. The valve body driving source 370 is used to drive the pneumatic valve body 360 to open the connecting ventilation pipe 380 in sequence.

[0067] In this embodiment, the valve body driving source 370 is driven and connected to the pneumatic valve body 360. The pneumatic valve body 360 is provided with multiple ventilation pipes 380 in sequence along the axial direction. The ventilation pipes 380 are connected to the connecting pipes 200 one by one. The valve body driving source 370 can drive the piston 362 of the pneumatic valve body 360 to move axially, thereby realizing the sequential opening of the connecting ventilation pipes 380, replacing the design of multiple manual switch valves in the prior art, which is convenient to operate and easy to use.

[0068] Specifically, see Figure 4 The pneumatic valve body 360 includes a valve seat 341, a valve cylinder 361, a piston 362, a valve stem 363, and an exhaust pipe 364. The valve cylinder 361 is disposed in the negative pressure chamber 311. A first air inlet 367 is disposed at one end of the valve cylinder 361. Ventilation pipes 380 are sequentially disposed axially along the other end of the valve cylinder 361. The piston 362 is coupled to the valve cylinder 361. One end of the valve stem 363 is fixedly connected to the piston 362. The other end of the valve stem 363 is connected to a valve body drive source 370. Driven by the valve body drive source 370, the valve stem 363 drives the piston 362 to be axially movable within the valve cylinder 361, thereby sequentially opening and connecting the vent pipes 380. The exhaust pipe 364 is connected to the end of the valve cylinder 361 away from the vent pipe 380 and is used to exhaust the negative pressure chamber 311.

[0069] In this embodiment, the valve seat 341 can be mounted and fixed on the pressure-maintaining base 310. The valve seat 341 is used to fix the valve cylinder 361. A first air inlet 367 is provided at one end of the valve cylinder 361, and a plurality of first air outlet holes 365 are sequentially provided at the other end of the valve cylinder 361. The plurality of first air outlet holes 365 are connected to a plurality of vent pipes 380 in a one-to-one correspondence. The valve body drive source 370 can drive the piston 362 to move axially along the valve cylinder 361. The piston 362, by moving along the valve cylinder 361, sequentially connects to the plurality of vent pipes 380, thereby achieving sequential connection to the plurality of vacuum unit chambers 112, thereby achieving automated control of the pneumatic valve body 360. The valve body drive source 370 can be a cylinder or a ball screw mechanism. For example, the cylinder can drive the valve stem 363 to move axially along the valve cylinder 361, causing the piston 362 to sequentially pass through the plurality of first air outlet holes 365 to sequentially open and connect to the vent pipes 380. The structure is simple and easy to implement.

[0070] After the workpiece is processed, it is necessary to deflate each vacuum unit chamber 112 so that each suction hole 140 no longer generates negative pressure, thereby loosening the workpiece. Therefore, a first exhaust hole 366 can be provided at the end of the valve cylinder 361, and the first exhaust hole 366 is connected to the exhaust pipe 364 to exhaust the negative pressure chamber 311, wherein the exhaust pipe 364 is connected to the external air of the negative pressure retainer 300. For example, when the workpiece needs to be unloaded, the valve body drive source 370 drives the piston 362 to reset, so that the piston 362 moves from the end of the valve cylinder 361 to the side of the valve cylinder 361 close to the first air inlet 367, so that each vent pipe 380 is connected to the exhaust pipe 364, and the negative pressure gas in each vacuum unit chamber 112 is discharged through the exhaust pipe 364.

[0071] Specifically, see Figure 1 The ultra-thin porous vacuum suction cup also includes: a suction cup negative pressure detection component 400, the suction cup negative pressure detection component 400 includes: a detection joint 410, a detection pipe 420 and an air pressure sensor 430, the detection joint 410 is arranged on the surface of the suction cup body 100, the detection pipe 420 is fixed on the inner side of the suction cup body 100, and the detection pipe 420 is connected to the detection joint 410, the air pressure sensor 430 is connected to the detection pipe 420, and the air pressure sensor 430 is used to detect the adsorption state when the suction hole 140 adsorbs the workpiece.

[0072] In this embodiment, when the workpiece is placed on the upper surface of the suction cup body 100, the workpiece can be covered with the detection joint 410. If the adsorption of the workpiece fails, the air pressure sensor 430 can detect the negative pressure when the suction hole 140 adsorbs the workpiece through the detection joint 410, and provide real-time feedback on the adsorption status between the suction hole 140 and the workpiece, which is efficient and accurate.

[0073] Example 2:

[0074] See also Figure 1 The present application provides a CNC machine tool, which includes the ultra-thin porous vacuum suction cup as described above. Thus, the CNC machine tool can have all the features and beneficial effects of the ultra-thin porous vacuum suction cup described above, which will not be repeated here.

[0075] In summary, the present application discloses an ultra-thin porous vacuum suction cup and a CNC machine tool, wherein the ultra-thin porous vacuum suction cup comprises: a suction cup body, a connecting pipe and a negative pressure retainer, the suction cup body has a plurality of suction holes and a vacuum cavity, the vacuum cavity is connected to the suction holes, the suction holes are used to adsorb the workpiece, the connecting pipe is provided on the suction cup body, and the connecting pipe extends outward from the suction cup body, the connecting pipe is used to connect the vacuum cavity, the negative pressure retainer has a negative pressure cavity, the negative pressure cavity is connected to a negative pressure source, and the negative pressure cavity is connected to the vacuum cavity via the connecting pipe. The present application can greatly reduce the height of the suction cup, can provide avoidance space for machining of the workpiece, has a simple structure, is convenient to disassemble and assemble, is easy to use, and has strong practicality.

[0076] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An ultra-thin porous vacuum suction cup, characterized in that: include: A suction cup body, wherein the suction cup body has a plurality of suction holes and a vacuum cavity, wherein the vacuum cavity is connected to the suction holes, and the suction holes are used to absorb the workpiece; a connecting pipe, the connecting pipe being provided on the suction cup body and extending outward from the suction cup body, the connecting pipe being used to communicate with the vacuum chamber; The negative pressure maintainer has a negative pressure chamber, the negative pressure chamber is connected to the negative pressure source, and the negative pressure chamber is connected to the vacuum chamber through the connecting pipe.

2. The ultra-thin porous vacuum chuck according to claim 1, wherein: The suction cup body comprises: A suction cup base, wherein the vacuum chamber is provided on the suction cup base, and the vacuum chamber includes a plurality of independent parallel vacuum unit chambers, each of the vacuum unit chambers is connected to an independent connecting pipe, and the vacuum unit chamber is used to communicate with the suction hole; A suction cup cover plate, the suction cup cover plate is arranged on the suction cup base, and a plurality of suction holes are opened on the suction cup cover plate; A vacuum logic valve is installed on the suction hole.

3. The ultra-thin porous vacuum chuck according to claim 2, wherein: A sealing groove is provided on the top of the suction cup base, a sealing gasket is embedded in the sealing groove, and the sealing gasket is used for sealingly connecting the suction cup base and the suction cup cover.

4. The ultra-thin porous vacuum chuck according to claim 2, wherein: The vacuum unit chamber comprises: a vacuum trunk cavity, the vacuum trunk cavity being in communication with the connecting pipe; A plurality of vacuum flow channels are arranged side by side, the vacuum flow channels are communicated with the vacuum trunk cavity, and a row of the suction holes is arranged above the vacuum flow channels.

5. The ultra-thin porous vacuum chuck according to claim 2, wherein: The negative pressure maintainer comprises: A pressure-maintaining base, wherein the pressure-maintaining base has the negative pressure cavity; A pressure-maintaining cover plate, the pressure-maintaining cover plate being sealed and connected to the pressure-maintaining base; a negative pressure air inlet pipe, the negative pressure air inlet pipe being connected to the negative pressure chamber and the negative pressure source; a movable control valve, the movable control valve being connected to the vacuum unit chamber via the connecting pipe, the movable control valve being used to sequentially open and connect a plurality of the vacuum unit chambers; A negative pressure monitoring meter is connected to the pressure maintaining base, and is used to monitor the negative pressure state in the negative pressure chamber.

6. The ultra-thin porous vacuum chuck according to claim 5, wherein: The movable control valve comprises: a pneumatic valve body, the pneumatic valve body being arranged in the negative pressure chamber, the pneumatic valve body being provided with a vent pipe connected to the connecting pipe in a one-to-one correspondence; A valve body driving source is provided in the negative pressure chamber, and is used to drive the pneumatic valve bodies to open and connect to the vent pipe in sequence.

7. The ultra-thin porous vacuum chuck according to claim 6, wherein: The pneumatic valve body comprises: a valve cylinder, the valve cylinder being arranged in the negative pressure chamber, the valve cylinder having a first air inlet hole arranged at one end, and the vent pipes being arranged in sequence along the axial direction at the other end; A piston, the piston being cooperatively connected with the valve cylinder; A valve stem, one end of which is fixedly connected to the piston, and the other end of which is connected to the valve body drive source. With the help of the drive of the valve body drive source, the valve stem drives the piston to be movably arranged axially in the valve cylinder to realize the sequential opening and connection of the vent pipe.

8. The ultra-thin porous vacuum chuck according to claim 7, wherein: The pneumatic valve body also includes: An exhaust pipe is connected to one end of the valve cylinder away from the vent pipe, and is used for exhausting the negative pressure chamber.

9. The ultra-thin porous vacuum chuck according to claim 1, wherein: Also included: a suction cup negative pressure detection component, the suction cup negative pressure detection component includes: A detection connector, the detection connector being arranged on the surface of the suction cup body; A detection pipe, the detection pipe is fixed to the inner side of the suction cup body and is connected to the detection joint; An air pressure sensor is connected to the detection pipeline, and is used to detect the adsorption state of the suction hole when adsorbing the workpiece.

10. A CNC machine tool, characterized in that: The invention comprises the ultra-thin porous vacuum suction cup according to any one of claims 1 to 9.

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