Vacuum suction multi-angle testing device

Abstract

The invention discloses a vacuum suction multi-angle testing device which comprises a supporting assembly, a force applying assembly and a connecting assembly, the supporting assembly comprises a frame body and a test plate, the test plate is connected with the frame body in a turnover mode, a limiting part on the frame body is connected with a fixing part on the test plate so that the test plate can be fixed at a preset angle, and the force applying assembly is connected with the connecting assembly. The force application assembly comprises a force sensor and a jack, the jack is arranged on the force sensor and transmits force in the vertical direction, the connection assembly comprises a cross beam and a hoisting element, the cross beam is connected with the jack, the hoisting element is connected with the cross beam, and the hoisting element is used for being connected with a suction cup adsorbed on a test plate. According to the testing device, the force sensor is adopted to directly test the pulling-out force of the vacuum suction cup adsorbed on the test plate, and the actual suction force of the vacuum suction cup is verified through parameters reserved by a peak value, so that theoretical calculation errors and virtual height misleading in the actual use performance of a product are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum suction cups, and in particular to a vacuum suction multi-angle testing device. Background Art

[0002] With the development of science and technology, vacuum suction is increasingly used in many fields, such as the grabbing and handling of automated equipment. However, similar products such as vacuum pressure gauges, negative pressure gauges, and vacuum gauges currently on the market have certain limitations in measuring vacuum suction. Although these instruments can measure gas pressure, they cannot directly test the actual suction of the vacuum cup. Instead, they indirectly calculate the suction force on the surface of the object by measuring parameters such as pressure data and vacuum volume. This method may cause errors or false highs between the actual force value and the theoretical calculated force value, which in turn affects operational safety.

[0003] In addition, although the existing magnetic field pull-off force tester can be applied to the test of vacuum suction to a certain extent, its test plate form and gantry structure are not suitable for testing vacuum suction. The magnetic field pull-off force tester is mainly used to test the magnetic field pull-off force of materials. The test plate must have a certain thickness, the structure must be bulky and strong, and the test range is wide, while the vacuum suction cup test force range is relatively small. Therefore, the existing testing equipment has certain defects in measuring vacuum suction. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention proposes a vacuum suction multi-angle testing device for testing the adsorption capacity of a lifting vacuum suction cup at any angle, verifying whether the actual data of the vacuum suction meets the prescribed surplus parameter value of at least twice the rated load, and providing real technical data and witness materials for the safe management and use of suction lifting.

[0006] The vacuum suction multi-angle testing device of the embodiment of the present invention comprises:

[0007] A support assembly, the support assembly comprising a frame and a test plate, the test plate is connected to the frame in a flippable manner, the frame has a plurality of limiting parts, the test plate has a plurality of fixing parts corresponding to the plurality of limiting parts, the fixing parts are connected to the corresponding limiting parts so that the test plate is fixed at a preset angle;

[0008] A force-applying assembly, the force-applying assembly comprising a force sensor and a jack, the jack being placed on the force sensor, and the jack transmitting force in a vertical direction;

[0009] A connecting assembly comprises a crossbeam and a hanging element, wherein the crossbeam is arranged in a horizontal direction and is detachably connected to the jack, and the hanging element is connected to the crossbeam, and the hanging element is used to connect a suction cup adsorbed on the test plate.

[0010] The vacuum suction multi-angle testing device of the embodiment of the present invention uses a force sensor to directly perform a pull-off force test on the vacuum suction cup adsorbed on the test plate, and verifies the actual suction force of the vacuum suction cup through the peak retention parameters, thereby avoiding theoretical calculation errors and false misleading in the actual performance of the product.

[0011] In some embodiments, the plurality of limiting portions include a first limiting portion and a second limiting portion, the plurality of fixing portions include a first fixing portion and a second fixing portion, the first limiting portion is connected to the first fixing portion so that the test plate is horizontally or tilted, and the second limiting portion is connected to the second fixing portion so that the test plate is vertically set.

[0012] In some embodiments, the first limiting portion includes a support column and a first clamping bolt, the support column is arranged in a vertical direction, the first fixing portion includes a first mounting hole, the first clamping bolt passes through the first mounting hole in a vertical direction and is connected to the support column, so that the test plate is directly clamped on the upper end of the support column, and the test plate is arranged horizontally.

[0013] In some embodiments, the first limiting portion also includes a washer, which is mounted on the upper end of the support column. The first clamping bolt passes through the first mounting hole and the washer in sequence along the vertical direction and is connected to the support column, so that the test plate is clamped on the upper end of the support column through the washer, and the test plate is arranged at an angle.

[0014] In some embodiments, the second limiting portion includes a limiting tube and a second clamping bolt, the second fixing portion includes a second mounting hole, the second clamping bolt passes through the second mounting hole in a horizontal direction and is connected to the limiting tube, so that the test plate is pressed on the limiting tube, and the test plate is vertically arranged.

[0015] In some embodiments, a rotating shaft is provided on the frame, the rotating shaft is arranged in a horizontal direction, the rotating shaft is connected to the test plate, and ring-handle bolts are respectively provided at both ends of the rotating shaft.

[0016] In some embodiments, the force-applying assembly further includes a hydraulic piston cylinder, the jack is connected to the crossbeam via the hydraulic piston cylinder, and the hydraulic piston cylinder is used to adjust the height of the crossbeam.

[0017] In some embodiments, there are two force-applying components, and the two force-applying components are respectively located at two ends of the beam.

[0018] In some embodiments, the lifting element includes a fine-tuning bolt and a hook, the fine-tuning bolt is installed on the beam, the hook is connected to the fine-tuning bolt, the fine-tuning bolt is used to adjust the height of the hook, and the hook is used to connect to the lifting ear on the suction cup.

[0019] In some embodiments, the lifting element further comprises a lifting ring and a lifting chain, wherein the lifting ring is sleeved on the crossbeam, the lifting chain is connected to the lifting ring, and the lifting chain is used to connect to the lifting ear on the suction cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of vertical vacuum suction test of the testing device according to an embodiment of the present invention.

[0021] Figure 2 Schematic diagram of vacuum suction tilt test of the testing device according to an embodiment of the present invention.

[0022] Figure 3 4 is a first schematic diagram of a vacuum suction level test of a testing device according to an embodiment of the present invention.

[0023] Figure 4 4 is a second schematic diagram of a vacuum suction level test of a testing device according to an embodiment of the present invention.

[0024] Reference numerals:

[0025] 1-frame, 101-support column, 102-first clamping bolt, 103-washer, 104-limiting tube, 105-second clamping bolt, 106-rotating shaft, 107-ring handle bolt, 108-guard ring, 2-test plate, 201-first mounting hole, 202-second mounting hole, 3-force sensor, 301-data wiring port, 4-jack, 401-hydraulic oil nozzle, 5-hydraulic piston cylinder, 6-crossbeam, 601-screw bolt, 7-fine-tuning bolt, 8-hook, 9-lifting ring, 10-lifting chain, 11-lifting ear, 12-suction cup. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0027] The vacuum suction multi-angle testing device according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0028] like Figures 1 to 4 As shown, the vacuum suction multi-angle testing device of the embodiment of the present invention includes: a supporting assembly, a force applying assembly and a connecting assembly.

[0029] The support assembly includes a frame 1 and a test plate 2, the test plate 2 is connected to the frame 1 in a flippable manner, and the test plate 2 is used to adsorb the vacuum suction cup 12 to be tested. Optionally, a rotating shaft 106 is provided on the frame 1, and the rotating shaft 106 is arranged in the horizontal direction. The rotating shaft 106 is connected to the test plate 2, so that the inclination angle of the test plate 2 can be quickly adjusted through the rotating shaft 106, so that the actual suction force that the vacuum suction cup 12 can provide under various working conditions can be tested, providing a credible safety margin for weight estimation and suction transportation, and meeting the basic requirements of the safety factor.

[0030] Ring handle bolts 107 are provided at both ends of the rotating shaft 106, so that the tilt angle of the test plate 2 can be quickly locked by the ring handle bolts 107. The frame 1 has a plurality of limiting parts, and the test plate 2 has a plurality of fixing parts corresponding to the plurality of limiting parts. The fixing parts are connected to the corresponding limiting parts so that the test plate 2 is fixed at a preset angle. That is, according to the preset angle of the test plate 2, the corresponding limiting parts are connected to the fixing parts, so as to further fix and lock the test plate 2, and ensure the necessary rigidity and stability of the vacuum suction cup 12 during the force value test.

[0031] For example, the plurality of limiting portions include a first limiting portion and a second limiting portion, and the plurality of fixing portions include a first fixing portion and a second fixing portion. Figure 1 or Figure 2 As shown, the first limiting portion is connected to the first fixing portion so that the test plate 2 is arranged horizontally or tilted. Figure 3 and Figure 4 As shown, the second limiting portion is connected to the second fixing portion so that the test plate 2 is arranged vertically.

[0032] The force-applying assembly includes a force sensor 3 and a jack 4. The jack 4 is placed on the force sensor 3 and transmits force in the vertical direction. The data line interface on the force sensor 3 is connected to an external display and a computer to obtain force value data. The hydraulic oil nozzle 401 on the jack 4 is connected to an external hydraulic station.

[0033] Optionally, the force sensor 3 is placed on the frame 1, and a retaining ring 108 is provided on the frame 1, and the retaining ring 108 is sleeved on the jack 4, so that the jack 4 is stably placed on the force sensor 3. In addition, there are two force-applying components, which are respectively located at both ends of the crossbeam 6, so as to improve the stability of the force applied to the suction cup 12.

[0034] The connection assembly includes a crossbeam 6 and a hanging element. The crossbeam 6 is arranged in the horizontal direction and is detachably connected to the jack 4. The hanging element is connected to the crossbeam 6 and is used to connect the suction cup 12 adsorbed on the test plate 2. In addition, the height of the hanging element is adjustable and movable along the length direction of the crossbeam 6 to adapt to the connection of different centers of gravity and ensure the accuracy of the test force value.

[0035] It can be understood that when the vacuum suction cup 12 is adsorbed on the test plate 2, it is connected vertically, tilted at a certain angle (usually 6°) or horizontally to the beam 6 through a movable and adjustable lifting element. When the jack 4 is started to rise by the hydraulic station, the force sensor 3 is subjected to pressure, and the data is transmitted to the external display screen. The peak values ​​at the moment of pulling off are the vertical suction, inclined suction and horizontal suction tested by the vacuum suction cup 12, respectively.

[0036] Therefore, the vacuum suction multi-angle testing device of the embodiment of the present invention uses the force sensor 3 to directly perform a pull-off force test on the vacuum suction cup 12 adsorbed on the test plate 2, and verifies the actual suction force of the vacuum suction cup 12 through the peak retention parameters, thereby avoiding theoretical calculation errors and false misleading in the actual performance of the product.

[0037] It should be noted that verifying the actual value of vacuum suction by force test is more accurate and intuitive than theoretical calculation of vacuum suction, and the verification material is more authentic and correct. Verifying the actual suction force of vacuum suction cup 12 by tilting the test plate 2 can further enhance the intrinsic safety of suction lifting.

[0038] In addition, the crossbeam 6 above the test plate 2 can be quickly disassembled and assembled by bolts, so that the plane of the test plate 2 is directly exposed under the suction cup 12. The large combined suction cup 12 can directly stop the entire machine above the testing device of the present invention. After the suction cup 12 is close to the test plate 2, the crossbeam 6 is quickly installed, and the hanging elements on the crossbeam 6 are quickly connected to the suction cup 12. After the vacuum is turned on, the jack 4 is started, and the actual force value can be quickly measured, which provides the possibility for on-site testing of the vacuum suction force using the vacuum suction cup 12, filling the gap in the industry.

[0039] In some embodiments, Figure 1 and Figure 2 As shown, the first limiting portion includes a support column 101 , a washer 103 and a first clamping bolt 102 , and the support column 101 is arranged along the vertical direction. The first fixing portion includes a first mounting hole 201 .

[0040] like Figure 1 As shown, when testing the horizontal suction force of the vacuum suction cup 12 (essentially the vertical pull-off force commonly defined), the first clamping bolt 102 passes through the first mounting hole 201 in the vertical direction and is connected to the support column 101, so that the test plate 2 is directly clamped on the upper end of the support column 101. At this time, the test plate 2 is set horizontally.

[0041] like Figure 2As shown, when the tilt suction force of the vacuum suction cup 12 is tested (referring to the pulling force applied from the side of the suction cup 12), the washer 103 is sleeved on the upper end of the support column 101, and the first clamping bolt 102 passes through the first mounting hole 201 and the washer 103 in sequence in the vertical direction and is connected to the support column 101, so that the test plate 2 is pressed against the upper end of the support column 101 through the washer 103, and the test plate 2 is tilted at this time. In addition, the tilt angle of the test plate 2 is controlled according to the size or number of the washer 103.

[0042] In some embodiments, Figure 3 and Figure 4 As shown, the second limiting portion includes a limiting tube 104 and a second clamping bolt 105. The second fixing portion includes a second mounting hole 202. When the vertical suction force (essentially the horizontal pull-off force generally defined) of the vacuum suction cup 12 is tested, the second clamping bolt 105 passes through the second mounting hole 202 in the horizontal direction and is connected to the limiting tube 104, so that the test plate 2 is pressed against the limiting tube 104. At this time, the test plate 2 is vertically arranged.

[0043] In some embodiments, Figures 1 to 4 As shown, the force-applying assembly further includes a hydraulic piston cylinder 5 , through which the jack 4 is connected to the crossbeam 6 , and the hydraulic piston cylinder 5 is used to adjust the height of the crossbeam 6 in a large range.

[0044] Optionally, both ends of the cross beam 6 are detachably connected to the hydraulic piston cylinder 5 via screw bolts 601 , which not only realizes the function of rapid disassembly and assembly of the cross beam 6 , but also realizes small-range adjustment of the height of the cross beam 6 .

[0045] Therefore, the spatial height of the crossbeam 6 can be adjusted by the screw bolt 601 and hydraulically adjusted by the hydraulic piston cylinder 5 to meet the effective connection of vacuum suction cups 12 with different heights and different test inclination angles.

[0046] Furthermore, if Figures 1 to 4 As shown, the lifting elements include a fine-adjusting bolt 7 , a lifting hook 8 , a lifting ring 9 and a lifting chain 10 .

[0047] like Figure 1 and Figure 2 As shown, when testing the horizontal suction and tilted suction of the vacuum suction cup 12, the fine-tuning bolt 7 is installed on the crossbeam 6, and the hook 8 is connected to the fine-tuning bolt 7, and the hook 8 is used to connect the ear 11 on the suction cup 12. The fine-tuning bolt 7 is used to adjust the height of the hook 8 to suitably hoist the suction cup 12 set horizontally or the suction cup 12 set tilted.

[0048] like Figure 3 and Figure 4 As shown, when testing the vertical suction force of the vacuum suction cup 12 , the lifting ring 9 is sleeved on the crossbeam 6 , and the lifting chain 10 is connected to the lifting ring 9 . The lifting chain 10 is used to connect the lifting ear 11 on the suction cup 12 .

[0049] It can be understood that the crossbeam 6 can be disassembled and assembled, and the height can be adjusted by means of the screw bolt 601 and the hydraulic piston cylinder 5. The lifting ring 9 can be moved laterally to adjust the load-bearing point (to avoid oblique pulling errors). The suction cups 12 can be removed one by one from the whole machine for testing, and the whole machine with a relatively small volume can be directly tested to meet the needs of rapid detection on site without affecting production.

[0050] For example, the vacuum suction cup 12 for sucking curtain wall glass is generally a compact combination of 4-5 suction cups 12, with a small area and concentrated suction force. The curtain wall glass needs to be tilted or vertically lifted to a height of tens or hundreds of meters. If the suction cup 12 is only tested to see whether the horizontal suction force exceeds 2 times, without testing the tilt and vertical suction force, it will often mislead the user to estimate the lower limit of the excess safety factor, which will cause certain safety risks.

[0051] An experiment was conducted on a powered vacuum suction cup 12 with a rated load of 400kg for transporting glass. The suction force of the suction cup 12 in the horizontal direction was 11.6kN (1183.2kg), but the suction force of the suction cup 12 in the vertical direction was 10.27kN (1047.54kg), with a force difference of 125.66kg and a suction force reduction of 11.47%.

[0052] Therefore, the vacuum suction multi-angle testing device of the embodiment of the present invention can not only test the horizontal suction when the test plate 2 is horizontal, but also test the inclined suction at any rotation angle, and especially can test the vertical suction when the test plate 2 is upright at 90°, thereby obtaining accurate, safe and ideal force value reference results.

[0053] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0054] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0057] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0058] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A vacuum suction multi-angle testing device, characterized in that: include: A support assembly, the support assembly comprising a frame and a test plate, the test plate is connected to the frame in a flippable manner, the frame has a plurality of limiting parts, the test plate has a plurality of fixing parts corresponding to the plurality of limiting parts, the fixing parts are connected to the corresponding limiting parts so that the test plate is fixed at a preset angle; A force-applying assembly, the force-applying assembly comprising a force sensor and a jack, the jack being placed on the force sensor, and the jack transmitting force in a vertical direction; A connecting assembly comprises a crossbeam and a hanging element, wherein the crossbeam is arranged in a horizontal direction and is detachably connected to the jack, and the hanging element is connected to the crossbeam, and the hanging element is used to connect a suction cup adsorbed on the test plate.

2. The vacuum suction multi-angle testing device according to claim 1, characterized in that: The plurality of limiting parts include a first limiting part and a second limiting part, the plurality of fixing parts include a first fixing part and a second fixing part, the first limiting part is connected to the first fixing part so that the test plate is horizontally set or tilted, and the second limiting part is connected to the second fixing part so that the test plate is vertically set.

3. The vacuum suction multi-angle testing device according to claim 2, characterized in that: The first limiting portion includes a support column and a first clamping bolt, the support column is arranged in a vertical direction, the first fixing portion includes a first mounting hole, the first clamping bolt passes through the first mounting hole in a vertical direction and is connected to the support column, so that the test plate can be directly clamped on the upper end of the support column, and the test plate is arranged horizontally.

4. The vacuum suction multi-angle testing device according to claim 3, characterized in that: The first limiting portion also includes a washer, which is mounted on the upper end of the support column. The first clamping bolt passes through the first mounting hole and the washer in sequence along the vertical direction and is connected to the support column, so that the test plate is clamped on the upper end of the support column through the washer, and the test plate is arranged at an angle.

5. The vacuum suction multi-angle testing device according to claim 2, characterized in that: The second limiting portion includes a limiting tube and a second clamping bolt, the second fixing portion includes a second mounting hole, the second clamping bolt passes through the second mounting hole in a horizontal direction and is connected to the limiting tube, so that the test plate is pressed on the limiting tube, and the test plate is vertically arranged.

6. The vacuum suction multi-angle testing device according to claim 1, characterized in that: The frame is provided with a rotating shaft, which is arranged in a horizontal direction and connected to the test plate. Both ends of the rotating shaft are respectively provided with ring-handle bolts.

7. The vacuum suction multi-angle testing device according to claim 1, characterized in that: The force-applying assembly further comprises a hydraulic piston cylinder, the jack is connected to the crossbeam via the hydraulic piston cylinder, and the hydraulic piston cylinder is used to adjust the height of the crossbeam.

8. The vacuum suction multi-angle testing device according to claim 7, characterized in that: There are two force-applying components, and the two force-applying components are respectively located at two ends of the crossbeam.

9. The vacuum suction multi-angle testing device according to claim 1, characterized in that: The hanging element comprises a fine-tuning bolt and a hook, wherein the fine-tuning bolt is installed on the crossbeam, the hook is connected to the fine-tuning bolt, the fine-tuning bolt is used to adjust the height of the hook, and the hook is used to connect to the lifting ear on the suction cup.

10. The vacuum suction multi-angle testing device according to claim 9, characterized in that: The lifting element further comprises a lifting ring and a lifting chain. The lifting ring is sleeved on the crossbeam, the lifting chain is connected to the lifting ring, and the lifting chain is used to connect the lifting ears on the suction cup.

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