Workbench exchange mechanism and mass spectrometry leak detection equipment

Abstract

The present invention discloses a workbench exchange mechanism and a mass spectrometry leak detection device. The workbench exchange mechanism includes: a frame; a first carrier, movably connected to the frame and disposed at a first preset height; a second carrier, movably connected to the frame and disposed at a second preset height; a driving device; a lifting device, disposed on the frame, driving the workbench to rise from the first preset height at the first station to a third preset height; a control device, electrically connected to the driving device and the lifting device respectively, controlling the lifting device to drive the workbench to rise to the third preset height before the first carrier and the second carrier move towards each other, so that the workbench can be exchanged between the first carrier and the second carrier. The workbench exchange mechanism of the present invention has the advantages of simple and compact structure, fast exchange, stable operation, and firm structure.

Description

Technical Field

[0001] The present invention relates to the field of automation technology, and particularly to a workbench exchange mechanism and a mass spectrometry leak detection device. Background Art

[0002] Mass spectrometry leak detection technology has been widely used in scientific research and industrial sectors. Its main advantages are that it can achieve quantitative detection of leakage rate under various detection conditions, and it has high leak detection resolution and a wide measurement range, especially suitable for accurate determination of tiny leakage rates. However, existing mass spectrometry leak detection devices all have a single workbench. It is necessary to clamp the material to be tested and the corresponding pipelines on the workbench to seal the cavity and evacuate it for mass spectrometry leak detection. When clamping the material to be tested, the expensive mass spectrometry leak detection components are in a standby state, which seriously affects the utilization rate of the relevant components of mass spectrometry leak detection and the overall working efficiency.

[0003] Therefore, a workbench exchange mechanism is needed to rotate workbenches for two or more independently installable workpieces. By exchanging workbenches, the time of the overall processing flow can be saved and the production efficiency can be improved. There is a rotary workbench in the prior art. Parts can be loaded on both sides of it. When the parts on one side are in the processing state, automatic loading and unloading can be carried out on the other side. After processing, the workbench rotates 180 degrees to achieve the exchange of processing. However, since it needs to rotate the workbench, the overall structure is complex, huge and bulky, occupying a large area, resulting in low utilization rate of the factory building land. Therefore, providing a workbench exchange mechanism with a simple and compact structure, quick and convenient exchange, and stable operation has become a problem that must be solved at present. Summary of the Invention

[0004] The technical problem solved by the present invention is to provide a workbench exchange mechanism and a mass spectrometry leak detection device with a simple and compact structure, quick and convenient exchange, and stable operation.

[0005] On the one hand, the present invention discloses a workbench exchange mechanism for the exchange of workbenches, which includes:

[0006] A frame;

[0007] A first carrier, movably connected to the frame and arranged at a first preset height to carry and move the workbench at the first preset height;

[0008] A second carrier, movably connected to the frame and arranged at a second preset height to carry and move the workbench at the second preset height;

[0009] A driving device for driving the first carrier and the second carrier to move towards each other between a first working position and a second working position;

[0010] A lifting device is arranged on the frame and drives the workbench to rise from the first preset height at the first working position to the third preset height; the third preset height is higher than the second preset height and the first preset height;

[0011] A control device is electrically connected to the driving device and the lifting device respectively, and controls the lifting device to drive the workbench to rise to the third preset height before the first carrier and the second carrier move towards each other, so that the workbench can be exchanged between the first carrier and the second carrier.

[0012] Preferably, the lifting device is further configured to drive the workbench to rise from the second preset height at the second working position to the fourth preset height; the fourth preset height is higher than the second preset height and the first preset height.

[0013] Preferably, a first guide rail is arranged on the frame, and the workbench exchange mechanism further includes:

[0014] A carrier, the second carrier is arranged on the first end of the carrier, and the second end of the carrier is movably connected to the first guide rail.

[0015] Preferably, a second guide rail arranged side by side with the first guide rail is further arranged on the frame, and a first sliding table cooperating with the second guide rail is arranged on the carrier, and the first sliding table is located between the first end and the second end of the carrier.

[0016] Preferably, a third guide rail arranged side by side with the first guide rail is further arranged on the frame, and the first carrier is movably connected to the third guide rail.

[0017] Preferably, the number of the carriers is two; the two carriers are respectively arranged on both sides of the frame, and the first carrier is located between the two carriers; the second preset height is higher than the first preset height.

[0018] Preferably, the workbench exchange mechanism further includes:

[0019] A first connecting frame is arranged at the bottom of the frame, and both ends of the first connecting frame are respectively connected to the two carriers.

[0020] Preferably, a first positioning ring cooperating with the workbench is arranged on the first carrier, and a second positioning ring cooperating with the workbench is arranged on the second carrier; when the first carrier and the second carrier move towards each other to a stacked state, the projection of the first positioning ring on the moving plane of the first carrier coincides with the projection of the second positioning ring on the moving plane of the first carrier.

[0021] Preferably, the driving device includes:

[0022] A driving sprocket, movably connected to the frame;

[0023] A driven sprocket, arranged side by side with the driving sprocket and movably connected to the frame;

[0024] A transmission chain, sleeved on the driving sprocket and the driven sprocket; the first carrier and the second carrier are respectively connected to the upper and lower sides of the transmission chain;

[0025] A driving motor, drivingly connected to the driving sprocket; driving the transmission chain to drive the first carrier and the second carrier to move towards each other.

[0026] On the other hand, the present invention also discloses a mass spectrometry leak detection device, including a workbench exchange mechanism, and the workbench exchange mechanism is the workbench exchange mechanism described above.

[0027] In summary, the present invention provides a workbench exchange mechanism and a mass spectrometry leak detection device. The workbench exchange mechanism includes: a frame; a first carrier, movably connected to the frame and arranged at a first preset height to carry and move the workbench at the first preset height; a second carrier, movably connected to the frame and arranged at a second preset height to carry and move the workbench at the second preset height; a driving device, driving the first carrier and the second carrier to move towards each other between a first working position and a second working position; a lifting device, arranged on the frame; a control device, electrically connected to the driving device and the lifting device respectively, controlling the lifting device to drive the workbench at the first working position to rise to the third preset height before the first carrier and the second carrier move towards each other, and after the first carrier and the second carrier move towards each other to exchange working positions, the lifting mechanism descends. Thus, the workbench can be exchanged on the first carrier and the second carrier. Therefore, the workbench exchange mechanism provided by the present invention has the advantages of simple and compact structure, fast exchange, and stable operation. Description of the Drawings

[0028] Figure 1 is a schematic structural diagram of a preferred embodiment of the workbench exchange mechanism of the present invention.

[0029] Figure 2 is a schematic structural diagram of the workbench exchange mechanism of the present invention with the lifting device removed. Detailed Embodiments

[0030] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that if there is no conflict, the embodiments of the present invention and the various features in the embodiments can be combined with each other, and all are within the protection scope of the present invention.

[0031] Please refer to Figures 1 to 2 , the present invention discloses a workbench exchange mechanism, which includes:

[0032] The present invention discloses a workbench 13 exchange mechanism for the exchange of the workbench 13, which includes:

[0033] A frame 10;

[0034] A first carrier 11, which is movably connected to the frame 10 and is set at a first preset height to stably carry and move the workbench 13 at the first preset height;

[0035] A second carrier 12, which is movably connected to the frame 10 and is set at a second preset height to stably carry and move the workbench 13 at the second preset height; the height difference between the first preset height and the second preset height is greater than the total height of the workbench 13 and the materials carried thereon; so that the workbench 13 moving at the first preset height and the workbench 13 moving at the second preset height are staggered from each other.

[0036] A driving device 20, which drives the first carrier 11 and the second carrier 12 to move towards each other between a first station 51 and a second station 52;

[0037] A lifting device 30, which is arranged at the first station 51 on the frame 10 and drives the workbench 13 to rise from the first preset height at the first station 51 to a third preset height; the third preset height is higher than the second preset height and the first preset height; so that after the workbench 13 rises to the third preset height, the first carrier 11 or the second carrier 12 is moved under the workbench 13 to facilitate the exchange of the workbench 13 between the first carrier 11 and the second carrier 12;

[0038] A control device (not shown in the figure), which is electrically connected to the driving device 20 and the lifting device 30 respectively, and controls the lifting device 30 to drive the workbench 13 to rise to the third preset height before the first carrier 11 and the second carrier 12 move towards each other, so that the workbench 13 can be exchanged on the first carrier 11 and the second carrier 12. Therefore, the workbench 13 exchange mechanism has the advantages of simple and compact structure, convenient exchange, etc.

[0039] In one embodiment, the lifting device 30 is further configured to drive the workbench 13 to rise from the second preset height at the second working position 52 to a fourth preset height; the fourth preset height is higher than the second preset height and the first preset height. So that the workbench 13 exchanging mechanism can simultaneously exchange two workbenches 13 respectively located on the first carrier 11 and the second carrier 12.

[0040] Preferably, a first guide rail 14 is provided at the bottom of the frame 10, and the workbench 13 exchanging mechanism further includes:

[0041] A carrier 15, the carrier 15 is vertically arranged; the second carrier 12 is arranged at the first end of the carrier 15; a second sliding table 14a cooperating with the first guide rail 14 is arranged at the second end of the carrier 15, and the carrier 15 is movably connected to the first guide rail 14 through the second sliding table 14a. So that the second carrier 12 can move along the guidance of the first guide rail 14 together with the carrier 15.

[0042] In this embodiment, the second preset height is higher than the first preset height. By arranging the carrier 15, while the second carrier 12 is located at the preset height, the overall height and the center of gravity of the frame 10 are reduced, the structure is simplified, and the cost is reduced. Therefore, the workbench 13 exchanging mechanism has the advantages of simple and compact structure and stable operation.

[0043] Preferably, a second guide rail 16 arranged side by side with the first guide rail 14 is provided on the side of the frame 10, and a first sliding table 16a cooperating with the second guide rail 16 is provided on the side of the carrier 15, and the first sliding table 16a is located between the first end and the second end of the carrier 15. So that the carrier 15 can always be kept vertically arranged. Therefore, the workbench 13 exchanging mechanism has the advantages of stable structure, simple and compact, and stable operation.

[0044] Preferably, a third guide rail 17 arranged side by side with the first guide rail 14 is further provided on the frame 10, and a third sliding table 17a cooperating with the third guide rail 17 is provided at the bottom of the first carrier 11, and the first carrier 11 is movably connected to the third guide rail 17 through the third sliding table 17a and can move along the guidance of the first guide rail 14.

[0045] Preferably, the number of the carrier racks 15 is two; the two carrier racks 15 are respectively arranged on both sides of the frame 10, and the first carrier member 11 is located between the two carrier racks 15; the second preset height is higher than the first preset height. To avoid the mutual interference when the first carrier member 11 and the second carrier member 12 move towards each other; that is, when the first carrier member 11 drives the first workbench 13 to move from the first working position 51 to the second working position 52, it can simultaneously drive the second carrier member 12 to drive the second workbench 13 to move from the second working position 52 to the first working position 51, so as to improve the exchange efficiency.

[0046] Preferably, the number of the first carrier members 11 and the second carrier members 12 is two; the two first carrier members 11 are respectively movably connected to the two third guide rails 17 arranged on both sides of the frame 10 and move along their guides; when the first carrier member 11 carries the workbench 13, both ends of the workbench 13 are respectively mounted on the two first carrier members 11. The two second carrier members 12 are respectively arranged on the first ends of the two carrier racks 15, and the second ends of the two carrier racks 15 are respectively movably connected to the two first guide rails 14 arranged at the bottoms of both sides of the frame 10 and move along the guides of the first guide rails 14; when the second carrier member 12 carries the workbench 13, both ends of the workbench 13 are respectively mounted on the two second carrier members 12. The two first carrier members 11 are both located between the two carrier racks 15, and the lifting device 30 is located between the two first carrier members 11; so that the lifting device 30 can respectively or simultaneously lift the workbench 13 located on the first carrier member 11 and the second carrier member 12, and at the same time avoid interfering with the movement of the first carrier member 11 and the second carrier member 12 towards each other. Therefore, the workbench 13 exchange mechanism has the advantages of simple and compact structure, ingenious design, etc.

[0047] Preferably, the workbench 13 exchange mechanism further includes a first connecting frame 18 and a second connecting frame 19 arranged at the bottom of the frame 10, and both ends of the first connecting frame 18 are respectively connected to the two carrier racks 15; both ends of the second connecting frame 19 are respectively connected to the two first carrier members 11. To enable the two carrier racks 15 to move synchronously, that is, the second carrier member 12 arranged on the carrier rack 15 can move synchronously, and at the same time avoid the problem that the first connecting frame 18 or the second connecting frame 19 hinders the lifting device 30 from lifting the workbench 13 for lifting movement. Therefore, the workbench 13 exchange mechanism has the advantages of simple and compact structure, ingenious design, etc.

[0048] Preferably, a first positioning ring 11a cooperating with the workbench 13 is provided on the first carrier 11, and a second positioning ring 12a cooperating with the workbench 13 is provided on the second carrier 12; guide conical surfaces 11b are provided on the end faces of the first positioning ring 11a and the second positioning ring 12a; positioning posts (not shown in the figure) cooperating with the first positioning ring 11a and the second positioning ring 12a are provided at the bottom of the workbench 13; when the first carrier 11 and the second carrier 12 move towards each other to a stacked state, the projection of the first positioning ring 11a on the movement plane of the first carrier 11 coincides with the projection of the second positioning ring 12a on the movement plane of the first carrier 11. This facilitates the exchange of the workbench 13 on the first carrier 11 and the second carrier 12, and also facilitates the limit fixation of the workbench 13.

[0049] In this embodiment, the driving device 20 includes:

[0050] A driving sprocket 21, movably connected to the frame 10;

[0051] A driven sprocket 22, arranged side by side with the driving sprocket 21 and movably connected to the frame 10;

[0052] A transmission chain 23, sleeved on the driving sprocket 21 and the driven sprocket 22; the first carrier 11 and the second carrier 12 are respectively connected to the upper and lower sides of the transmission chain 23; thus, only by driving the driving sprocket 21 to rotate, the opposite movement of the first carrier 11 and the second carrier 12 can be realized simultaneously, and the synchronization performance is good.

[0053] A driving motor 24, drivingly connected to the driving sprocket 21; driving the transmission chain 23 to drive the first carrier 11 and the second carrier 12 to move towards each other. Therefore, the workbench 13 exchange mechanism has the advantages of simple and compact structure, high driving efficiency, good synchronization performance, etc.

[0054] In other embodiments, a conveyor belt and belt pulleys can also be used to drive the first carrier 11 and the second carrier 12 to move towards each other, which is not specifically limited herein.

[0055] The present invention also discloses a mass spectrometry leak detection device, including a workbench 13 exchange mechanism, and the workbench 13 exchange mechanism is the workbench 13 exchange mechanism described above.

[0056] In one embodiment, the lifting device 30 is disposed between the two first carriers 11 and can simultaneously drive the worktables 13 located at the first station 51 and the second station 52 respectively to perform lifting motion. In another embodiment, the lifting device 30 may also be a first lifting unit and a second lifting unit respectively disposed at the first station 51 and the second station 52, and the first lifting unit and the second lifting unit respectively drive the worktables 13 located at the first station 51 and the second station 52 to perform lifting motion. In yet another embodiment, the lifting device 30 may also be disposed only at the first station 51 and only drive the worktable 13 located at the first station 51 to perform lifting motion; the worktable 13 at the second station 52 is driven to perform lifting motion by a lifting mechanism provided in the mass spectrometry leak detection device itself, and no specific limitation is made here.

[0057] The worktable 13 includes a first worktable 13 and a second worktable 13. The working principle of the worktable 13 exchange mechanism is as follows:

[0058] (1) Drive the first carrier 11 and the second carrier 12 to move to the first station 51 and the second working position respectively;

[0059] (2) Respectively drive the first worktable 13 on the first carrier 11 and the second worktable 13 on the second carrier 12 to rise to the third preset height and the fourth preset height;

[0060] (3) Drive the first carrier 11 and the second carrier 12 to move to the second station 52 and the first working position respectively;

[0061] (4) Respectively drive the first worktable 13 at the first station 51 and the second worktable 13 at the second station 52 to descend until the second carrier 12 and the first carrier 11 respectively carry the first worktable 13 and the second worktable 13; realize the exchange of the first worktable 13 and the second worktable 13 between the first carrier 11 and the second carrier 12;

[0062] (5) Drive the first carrier 11 and the second carrier 12 to drive the second worktable 13 and the first worktable 13 to move to the first station 51 and the second working position respectively; realize the exchange of the first worktable 13 and the second worktable 13 between the first station 51 and the second station 52.

[0063] (6) By cycling in this way, the first workbench 13 and the second workbench 13 are reciprocally exchanged between the first preset height at the first working position 51 and the second working position 52, so as to facilitate assembling the material to be processed and disassembling the processed material at the first preset height at the first working position 51, and processing the material to be processed at the second working position 52. While the material is being processed, other materials are clamped and disassembled, greatly improving the working efficiency.

[0064] In summary, the present invention provides a workbench 13 exchange mechanism and a mass spectrometry leak detection device. The workbench 13 exchange mechanism includes: a frame 10; a first carrier 11, movably connected to the frame 10 and arranged at a first preset height to carry and move the workbench 13 at the first preset height; a second carrier 12, movably connected to the frame 10 and arranged at a second preset height to carry and move the workbench 13 at the second preset height; a driving device 20, driving the first carrier 11 and the second carrier 12 to move towards each other between the first working position 51 and the second working position 52; a lifting device 30, arranged on the frame 10; a control device, electrically connected to the driving device 20 and the lifting device 30 respectively, controlling the lifting device 30 to drive the workbench 13 at the first working position 51 to rise to the third preset height before the first carrier 11 and the second carrier 12 move towards each other, and after the first carrier 11 and the second carrier 12 move towards each other to exchange working positions, the lifting mechanism descends. Thus, the workbench 13 can be exchanged between the first carrier 11 and the second carrier 12. Therefore, the workbench 13 exchange mechanism provided by the present invention has the advantages of simple and compact structure, quick exchange, etc.

[0065] It should be clear that the present invention is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, the detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present invention.

[0066] It should also be noted that in the exemplary embodiments mentioned in the present invention, some methods or systems are described based on a series of steps or devices. However, the present invention is not limited to the order of the above steps, that is, the steps can be executed in the order mentioned in the embodiments, or different from the order in the embodiments, or several steps can be executed simultaneously.

[0067] As described above, the above are only specific embodiments of the present invention. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein. It should be understood that the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. A workbench exchange mechanism for the exchange of workbenches, characterized in that, The workbench exchange mechanism includes: a frame; a first carrier, movably connected to the frame and disposed at a first preset height to carry and move a first workbench at the first preset height; a second carrier, movably connected to the frame and disposed at a second preset height to carry and move a second workbench at the second preset height, and the first workbench moving at the first preset height and the second workbench moving at the second preset height are staggered from each other; a driving device for driving the first carrier and the second carrier to move towards each other between a first working position and a second working position; a lifting device disposed on the frame to drive the first workbench to rise from the first preset height at the first working position to a third preset height; the third preset height is higher than the second preset height and the first preset height; a control device electrically connected to the driving device and the lifting device respectively, and controlling the lifting device to drive the first workbench to rise to the third preset height before the first carrier and the second carrier move towards each other, so that the first workbench can be exchanged on the first carrier and the second carrier.

2. The workbench exchange mechanism according to claim 1, characterized in that: The lifting device is further configured to drive the second workbench to rise from the second preset height at the second working position to a fourth preset height; the fourth preset height is higher than the second preset height and the first preset height.

3. The workbench exchange mechanism according to claim 1 or 2, characterized in that, A first guide rail is provided on the frame, and the workbench exchange mechanism further includes: a carrier frame, the second carrier is disposed at the first end of the carrier frame, and the second end of the carrier frame is movably connected to the first guide rail.

4. The workbench exchange mechanism according to claim 3, characterized in that: A second guide rail arranged side by side with the first guide rail is further provided on the frame, and a first sliding table cooperating with the second guide rail is provided on the carrier frame, and the first sliding table is located between the first end and the second end of the carrier frame.

5. The workbench exchange mechanism according to claim 3, characterized in that, A third guide rail arranged side by side with the first guide rail is further provided on the frame, and the first carrier is movably connected to the third guide rail.

6. The workbench exchange mechanism according to claim 5, characterized in that, The number of the carrier frames is two; the two carrier frames are respectively disposed on both sides of the frame, and the first carrier is located between the two carrier frames; the second preset height is higher than the first preset height.

7. The workbench exchange mechanism according to claim 6, characterized in that, The workbench exchange mechanism further includes: a first connecting frame disposed at the bottom of the frame, and both ends of the first connecting frame are respectively connected to the two carrier frames.

8. The workbench exchange mechanism according to claim 6, characterized in that, A first positioning ring cooperating with the first workbench is provided on the first carrier, and a second positioning ring cooperating with the second workbench is provided on the second carrier; when the first carrier and the second carrier move towards each other to a stacked state, the projection of the first positioning ring on the movement plane of the first carrier coincides with the projection of the second positioning ring on the movement plane of the first carrier.

9. The workbench exchange mechanism according to claim 1, characterized in that, The driving device includes: a driving sprocket movably connected to the frame; a driven sprocket arranged side by side with the driving sprocket and movably connected to the frame; The transmission chain is sleeved on the driving sprocket and the driven sprocket; the first bearing member and the second bearing member are respectively connected to the upper and lower sides of the transmission chain; The driving motor is in transmission connection with the driving sprocket; and drives the transmission chain to drive the first bearing member and the second bearing member to move towards each other.

10. A mass spectrometry leak detection device, including a workbench exchange mechanism, characterized in that: The workbench exchange mechanism is the workbench exchange mechanism according to any one of claims 1 to 9.

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