Ceramic suction cup suction testing device

Abstract

The invention relates to the technical field of suction cup testing, and discloses a ceramic suction cup suction testing device which comprises a suction cup, a testing piece, a testing box, a testing assembly, a reset assembly, a material changing assembly and a vacuum pump. The test assembly comprises a push-pull dynamometer and a power assembly, and the power assembly is used for driving the push-pull dynamometer to apply thrust to the test piece; the reset assembly comprises a reset plate, a first air cylinder, a guide plate and two limiting plates, the top of the guide plate is flush with the top of the suction cup, and a first sliding way is defined between the two limiting plates so as to guide the test piece; the material changing assembly comprises a discharging groove, a feeding cylinder and a discharging plate, the discharging groove is used for receiving the test piece, the top of the feeding cylinder is communicated with the outside of the test box, a discharging hole communicated with the discharging plate is formed in the bottom of the feeding cylinder, and the discharging plate is communicated with the first sliding way. The test piece can be pushed back to the suction cup again, the suction force of the suction cup can be repeatedly tested, the damaged test piece can be replaced, and the test accuracy can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of suction cup testing, and more specifically, to a suction force testing device for a ceramic suction cup. Background Art

[0002] Due to its excellent high temperature resistance, corrosion resistance, high hardness and stable chemical properties, ceramic vacuum suction cups are widely used in fields such as semiconductor manufacturing, precision electronic assembly, and optical component processing. In scenarios such as wafer handling and glass substrate fixing, ceramic suction cups achieve non-destructive clamping of workpieces through vacuum adsorption, and the reliability of their adsorption performance is directly related to production efficiency and product yield.

[0003] In related technologies, when testing the suction force of a ceramic suction cup, usually a chip is placed on the top of the suction cup, then the inside of the ceramic vacuum suction cup is evacuated, and then a push-pull force gauge is used to apply pressure to the chip. By observing and recording the change in the force on the push-pull force gauge during the movement of the chip, the suction force of the ceramic vacuum suction cup is judged. However, after each test, the operator needs to place the chip back in place, which requires opening the test chamber, and then a large amount of air will re-enter the test chamber, and a long-time evacuation operation needs to be carried out again. The overall operation is rather cumbersome. Summary of the Invention

[0004] The present invention provides a suction force testing device for a ceramic suction cup, which solves the technical problem that after each test process in related technologies, the operator needs to place the chip back in place, which requires opening the test chamber and then re-performing the evacuation operation, and the operation is rather cumbersome.

[0005] The present invention provides a suction force testing device for a ceramic suction cup, including a suction cup, a test piece and a vacuum pump; the suction force testing device for a ceramic suction cup further includes a test chamber, which includes a bottom plate, and the suction cup is arranged on the bottom plate; a test assembly, which is arranged in the test chamber and includes: a push-pull force gauge and a power assembly, and the power assembly is used to drive the push-pull force gauge to apply a thrust to the test piece; a reset assembly, which is arranged in the test chamber and on the side of the suction cup away from the test assembly, and includes: a reset plate, a first cylinder connected to the reset plate, a guide plate and two limit plates, the guide plate is arranged on the bottom plate, and its top is flush with the top of the suction cup, the two limit plates are arranged on the guide plate, and a first slideway is defined between the two limit plates to guide the test piece, and the first cylinder drives the reset plate to move to selectively push the test piece located in the first slideway back onto the suction cup; a material changing assembly, which includes: a discharge chute, a feed cylinder and a discharge plate, the discharge chute is opened on the bottom plate for receiving the test piece, the top of the feed cylinder is communicated with the outside of the test chamber, and a discharge hole communicated with one end of the discharge plate is opened at its bottom, and the other end of the discharge plate is communicated with the first slideway.

[0006] As a further improvement of the present invention, the test chamber further includes: a top plate, a first side plate, a second side plate, a third side plate, a fourth side plate, a partition plate, a support plate and a plurality of support legs. The top plate is arranged parallel to the bottom plate. The first side plate and the second side plate are arranged parallel to each other. The third side plate and the fourth side plate are arranged parallel to each other. The upper and lower sides of the first side plate to the fourth side plate are respectively fixedly connected to the top plate and the bottom plate to form a cuboid with a hollow interior. One end of the partition plate is fixedly connected to the third side plate and is parallel to the top plate. The bottom of the feeding cylinder is arranged on the partition plate, and one end of the discharging plate is fixedly connected to the other end of the partition plate. The support plate is connected to both the bottom plate and the partition plate at the same time. A plurality of support legs are arranged at intervals at the bottom of the bottom plate. The first cylinder is fixedly connected to the support plate.

[0007] As a further improvement of the present invention, the power assembly includes: a first bracket, a second bracket, a screw, a nut seat, a connecting seat and a motor. The first bracket and the second bracket are both fixedly connected to the bottom plate. The two ends of the screw are respectively rotatably connected to the first bracket and the second bracket. One end of the screw sequentially passes through the second bracket and the fourth side plate and is fixedly connected to the motor. The motor is fixedly connected to the outside of the fourth side plate. The nut seat is threadedly connected to the screw. The two ends of the connecting seat are respectively fixedly connected to the push-pull force gauge and the nut seat.

[0008] As a further improvement of the present invention, a second chute inclined downward is formed inside the bottom plate. The bottom of the discharge chute is inclined, and the top of the second chute is communicated with the bottom of the discharge chute. The bottom of the second chute is communicated with the outside of the test chamber. The test piece located in the discharge chute slides out of the test chamber through the second chute under the action of gravity.

[0009] As a further improvement of the present invention, the distance between the two limiting plates is less than or equal to the diameter size of the suction cup.

[0010] As a further improvement of the present invention, the end of the limiting plate close to the suction cup is provided with an arc structure. The arc structure is concentric with the suction cup and the diameter size is larger than the diameter size of the suction cup.

[0011] As a further improvement of the present invention, a baffle is provided on the top of the limiting plate. The baffle cooperates with the upper surface of the test piece to limit the test piece.

[0012] As a further improvement of the present invention, a push plate is provided at the end of the push-pull force gauge. The structure of the push plate is an arc structure, and the curvature of the push plate is the same as the curvature of the test piece; and / or the structure of the reset plate is an arc structure, and the curvature of the reset plate is the same as the curvature of the test piece.

[0013] As a further improvement of the present invention, a sliding hole is formed on one side of the feeding cylinder away from the discharging hole; the ceramic suction cup suction force testing device further includes: a driving assembly, and the driving assembly includes: a second cylinder and a driving plate. The second cylinder is fixedly connected to the third side plate, and the telescopic end of the second cylinder is fixedly connected to the driving plate. The second cylinder drives the driving plate to selectively pass through the sliding hole, so as to push the test piece in the feeding cylinder into the discharging plate through the discharging hole and then into the first slideway; and / or the driving plate is in a plate-like structure, and its width is greater than the radius size of the feeding cylinder.

[0014] As a further improvement of the present invention, in the vertical direction, the size of the driving plate is smaller than the size of the test piece; and the size of the discharging hole is greater than the size of one test piece and smaller than the size of two test pieces.

[0015] The beneficial effects of the present invention are as follows: 1. By arranging a suction cup inside the test box in the present invention, the test piece is adsorbed on the suction cup, and the power assembly is used to drive the push-pull force gauge to apply pressure to the test piece, so that the suction force of the suction cup can be measured. In addition, two limiting plates are arranged on the guiding plate, and the first slide formed between the two limiting plates can enable the test piece to move directionally after separating from the suction cup. Furthermore, the first cylinder can be used to drive the reset plate to push the test piece back onto the suction cup, so as to facilitate repeatedly testing the suction force of the suction cup, which is more convenient to use and is beneficial to improving the accuracy of the test.

[0016] 2. By arranging a discharging groove on the bottom plate in the present invention, the discharging groove is communicated with the outside of the test box through the second slideway, and a feeding cylinder communicated with the outside is arranged on the partition plate. The feeding cylinder is used to store the test pieces and is communicated with the first slide through the discharging plate. In this way, when the test piece is damaged, the damaged test piece can be unloaded from the second slideway by using the test assembly, and the new test piece in the feeding cylinder can be pushed onto the suction cup through the cooperation between the driving assembly and the reset assembly for re-testing, so as to avoid the influence of the damaged test piece on the test result and is beneficial to improving the accuracy of the test. Description of the Drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of a ceramic suction cup suction force testing device according to an embodiment of the present invention; Figure 2 is a first main view sectional three-dimensional structural schematic diagram of a ceramic suction cup suction force testing device according to an embodiment of the present invention; Figure 3 is a main view sectional structural schematic diagram of a ceramic suction cup suction force testing device according to an embodiment of the present invention; Figure 4 is a second main view sectional three-dimensional structural schematic diagram of a ceramic suction cup suction force testing device according to an embodiment of the present invention; Figure 5 It is a schematic top-down sectional structure view of a ceramic suction cup suction force testing device according to an embodiment of the present invention; Figure 6 It is a first schematic top-down sectional three-dimensional structure view of a ceramic suction cup suction force testing device according to an embodiment of the present invention; Figure 7 It is a second schematic top-down sectional three-dimensional structure view of a ceramic suction cup suction force testing device according to an embodiment of the present invention; Figure 8 It is a first schematic side sectional three-dimensional structure view of a ceramic suction cup suction force testing device according to an embodiment of the present invention; Figure 9 It is a second schematic side sectional three-dimensional structure view of a ceramic suction cup suction force testing device according to an embodiment of the present invention.

[0018] In the figure: 1, suction cup; 2, test piece; 3, test box; 31, top plate; 32, bottom plate; 321, second slideway; 33, first side plate; 34, second side plate; 35, third side plate; 36, fourth side plate; 37, partition; 38, support plate; 39, support leg; 4, test assembly; 41, push-pull force gauge; 42, power assembly; 421, first bracket; 422, second bracket; 423, screw; 424, nut seat; 425, connecting seat; 426, motor; 427, guide rod; 428, guide hole; 5, reset assembly; 51, reset plate; 52, first cylinder; 53, guide plate; 54, limit plate; 55, first slideway; 6, material changing assembly; 61, discharge chute; 62, feed cylinder; 621, discharge hole; 622, sliding hole; 63, discharge plate; 7, baffle; 8, push plate; 9, drive assembly; 91, second cylinder; 92, drive plate; 10, vacuum pump; 11, check valve. Specific Embodiments

[0019] Now, the subject matter described herein will be discussed with reference to example embodiments. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein. Without departing from the scope of protection of the content of this specification, changes can be made to the functions and arrangements of the elements discussed. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described relative to some examples can also be combined in other examples.

[0020] As Figures 1-9As shown in the figure, a suction force testing device for a ceramic suction cup includes a suction cup 1, a cylindrical test piece 2, a test box 3, a reset assembly 5, a material changing assembly 6, and a vacuum pump 10. Among them, the suction cup 1 is the ceramic suction cup 1, which is an existing technology. In order to detect whether the suction force of the suction cup 1 meets the qualified standard, it is necessary to test the suction force of the suction cup 1. The ceramic suction cup 1 can be applied in the semiconductor field, so the test piece 2 can be a chip. In this embodiment, the test piece 2 is selected as a chip. Of course, the test piece 2 can also be made of other suitable materials. The vacuum pump 10 cooperates with the suction cup 1 to extract the air inside the suction cup 1, so that the suction cup 1 can adsorb the test piece 2. The test box 3 mainly plays a role in installation and support, and can provide a carrier for installing and supporting other components. The test assembly 4 is mainly used to apply pressure to the test piece 2 to measure the suction force of the suction cup 1. The reset assembly 5 is mainly used to push the test piece 2 that has separated from the suction cup 1 back onto the suction cup 1 again, so as to facilitate repeatedly testing the suction force of the suction cup 1 and improve the accuracy of the test results. During the process of testing the suction force of the suction cup 1, the test piece 2 may be damaged. The material changing assembly 6 is mainly used to replace the damaged test piece 2, so as to reduce the influence of the damaged test piece 2 on the suction force test results of the suction cup 1.

[0021] Specifically, as Figures 1-3 shown, the test box 3 includes: a bottom plate 32, a top plate 31, a first side plate 33, a second side plate 34, a third side plate 35, a fourth side plate 36, a partition plate 37, a support plate 38, and a plurality of support legs 39. The top plate 31 is arranged parallel to the bottom plate 32, and the top plate 31 is arranged on the upper side of the bottom plate 32. The first side plate 33 and the second side plate 34 are arranged parallel to each other, the third side plate 35 and the fourth side plate 36 are arranged parallel to each other. The upper and lower sides of the first side plate 33 to the fourth side plate 36 are respectively fixedly connected to the top plate 31 and the bottom plate 32. The two sides of the first side plate 33 are respectively fixedly connected to one ends of the third side plate 35 and the fourth side plate 36. The two sides of the second side plate 34 are respectively fixedly connected to the other ends of the third side plate 35 and the fourth side plate 36. In this way, the bottom plate 32, the top plate 31, the first side plate 33, the second side plate 34, the third side plate 35, and the fourth side plate 36 can form a cuboid with a hollow interior. In addition, one end of the partition plate 37 is fixedly connected to the third side plate 35, and the partition plate 37 is arranged parallel to the top plate 31. The support plate 38 is fixedly connected to both the bottom plate 32 and the partition plate 37 at the same time, so that the arrangement of the partition plate 37 can be more reliable and stable. A plurality of support legs 39 are fixedly connected to the bottom of the bottom plate 32 at intervals, and are used to support the bottom plate 32, so that the test work can be more stable. The vacuum pump 10 can be fixedly connected to the fourth side plate 36, and of course, it can also be connected to other suitable installation positions.

[0022] In use, the suction cup 1 is fixedly connected to the bottom plate 32, and the test piece 2 is placed on the top of the suction cup 1. The vacuum pump 10 is started to make the suction cup 1 adsorb the test piece 2, and then the test assembly 4 is used to push the test piece 2 until the test piece 2 is separated from the suction cup 1, and the change in pressure in the test assembly 4 is collected and observed.

[0023] It should be noted that the first side plate 33 to the fourth side plate 36 and the top plate 31 can be made of acrylic material, which is convenient for observing the internal situation. Of course, other suitable transparent materials can also be selected.

[0024] In addition, as Figures 2-5 shown, the test assembly 4 is arranged in the test box 3. The test assembly 4 includes: a push-pull force gauge 41 and a power assembly 42, and the power assembly 42 is used to apply a thrust to the test piece 2. Among them, the push-pull force gauge 41 is a prior art, and a PMF-30 digital display push-pull force gauge 41 can be selected. Of course, other suitable models of push-pull force gauges 41 can also be selected. In use, the test head of the push-pull force gauge 41 is in contact with the test piece 2, and the power assembly 42 drives the push-pull force gauge 41 to apply pressure to the test piece 2.

[0025] Specifically, the power assembly 42 includes: a first bracket 421, a second bracket 422, a screw 423, a nut seat 424, a connecting seat 425 and a motor 426. Both the first bracket 421 and the second bracket 422 are fixedly connected to the bottom plate 32. Among them, the first bracket 421 can be a C-shaped structure with an opening facing the bottom plate 32, which can play a role of avoidance, and the second bracket 422 can be a straight plate structure. Both ends of the screw 423 are rotatably connected to the first bracket 421 and the second bracket 422 respectively. One end of the screw 423 passes through the second bracket 422 and the fourth side plate 36 in sequence and is fixedly connected to the motor 426, and the motor 426 is fixedly connected to the outside of the fourth side plate 36. Fixing the motor 426 to the outside of the fourth side plate 36 can, on the one hand, reduce the influence of the motor 426 on the test environment, and on the other hand, facilitate the heat dissipation of the motor 426. The nut seat 424 is threadedly connected to the screw 423, and both ends of the connecting seat 425 are fixedly connected to the push-pull force gauge 41 and the nut seat 424 respectively.

[0026] In use, after starting the suction cup 1 to adsorb the test piece 2, the motor 426 is started. The motor 426 drives the screw 423 to rotate, and the rotation of the screw 423 will drive the nut seat 424 to move along the axis of the screw 423. Therefore, the push-pull force gauge 41 can be driven by the connecting seat 425 to move along the axis of the screw 423, so as to apply pressure to the test piece 2. It should be noted that the axis of the screw 423 can be set to pass through the center of the suction cup 1, and the test piece 2 is placed close to the center of the suction cup 1, so that the acting point of the push-pull force gauge 41 is close to the middle position of the test piece 2, reducing the phenomenon of slipping between the push-pull force gauge 41 and the test piece 2.

[0027] As an optional embodiment, Figure 5 As shown, a guide rod 427 is fixedly connected between the first bracket 421 and the second bracket 422, and a guide hole 428 is opened on the guide rod 427 along the axial direction of the screw rod 423, and the nut seat 424 is slidably connected to the guide hole 428. In this way, the nut seat 424 can be prevented from swinging as the screw rod 423 rotates, so that the movement of the push-pull dynamometer 41 can be more stable.

[0028] As an optional embodiment, Figure 4 and Figure 7 As shown, a push plate 8 is provided at the end of the push-pull force gauge 41, that is, a push plate 8 is fixedly connected to the test head of the push-pull force gauge 41, and the push plate 8 is an arc-shaped structure, and the curvature of the push plate 8 is the same as the curvature of the test piece 2. In this way, the contact area between the push plate 8 and the test piece 2 can be increased, so that the test piece 2 can be protected and the service life of the test piece 2 can be extended.

[0029] In addition, if Figures 2-4 As shown, the reset assembly 5 is arranged in the test box 3 and is located on the side of the suction cup 1 away from the test assembly 4, so as to facilitate the recovery work of the test piece 2. Specifically, the reset assembly 5 includes a reset plate 51, a first cylinder 52 fixedly connected to the reset plate 51, a guide plate 53 and two limit plates 54. Among them, the first cylinder 52 is fixedly connected to the support plate 38. The guide plate 53 is fixedly connected to the bottom plate 32, and the top of the guide plate 53 is flush with the top of the suction cup 1, so that the test piece 2 can smoothly transition between the guide plate 53 and the suction cup 1. The two limit plates 54 are fixedly connected to the guide plate 53, and a first slide 55 is defined between the two limit plates 54 to guide the test piece 2. The first cylinder 52 drives the reset plate 51 to move to selectively push the test piece 2 located in the first slide 55 back to the suction cup 1.

[0030] It should be noted that the initial position of the reset plate 51 can be set at an end of the first slide 55 away from the push-pull force gauge 41, so that the test piece 2 can be prevented from escaping from the first slide 55, thereby facilitating pushing the test piece 2 back onto the suction cup 1. The length of the first slide 55 can be set according to actual working conditions, so that the test piece 2 does not contact the initial position of the reset plate 51 in the final sliding position, so as to protect the test piece 2.

[0031] During use, when the test piece 2 is pushed by the push-pull force gauge 41 to separate from the suction cup 1, the test piece 2 will enter the first slide 55 to slide. When it slides to the final position without damage, the first cylinder 52 is started. The first cylinder 52 will drive the reset plate 51 to push the test piece 2 toward the suction cup 1, so that the test piece 2 can be pushed back onto the suction cup 1.

[0032] As an alternative embodiment, the reset plate 51 is configured as an arc structure, and the curvature of the reset plate 51 is the same as that of the test piece 2. This can increase the contact area between the reset plate 51 and the test piece 2, thereby protecting the test piece 2 and extending the service life of the test piece 2.

[0033] Further, as Figures 2-4 and Figure 6 shown, the refueling assembly 6 includes a discharge chute 61, a feed cylinder 62, and a discharge plate 63. The discharge chute 61 is opened on the bottom plate 32 for receiving the test piece 2. It should be noted that the discharge chute 61 is arranged close to the side of the guide plate 53 away from the suction cup 1. When the test piece 2 is damaged during the test, at this time, the first cylinder 52 is started to move the reset plate 51 to the side away from the suction cup 1, so that the discharge chute 61 can be exposed. Then, the test assembly 4 is continued to be started, and the push-pull force gauge 41 will continue to push the test piece 2 to move until the test piece 2 falls into the discharge chute 61, and then the push-pull force gauge 41 is reset.

[0034] The top of the feed cylinder 62 is communicated with the outside of the test box 3, and the bottom of the feed cylinder 62 is fixedly connected to the partition plate 37. Specifically, the top of the feed cylinder 62 passes through the top plate 31 and is communicated with the outside, which is convenient for storing the test piece 2 in the feed cylinder 62. The bottom of the feed cylinder 62 is provided with a discharge hole 621 communicated with one end of the discharge plate 63. It should be noted that the discharge plate 63 is inclined, and the height of the discharge hole 621 is higher than the height of the first slideway 55. One end of the discharge plate 63 is fixedly connected to one end of the partition plate 37, and the other end of the discharge plate 63 is communicated with the first slideway 55 but does not contact, that is, the other end of the discharge plate 63 is located above the first slideway 55.

[0035] During use, a new test piece 2 can be placed in the feed cylinder 62 through the top of the feed cylinder 62, and then discharged into one end of the discharge plate 63 through the discharge hole 621. Since the discharge plate 63 is an inclined structure, the test piece 2 will fall into the first slideway 55 from the other end of the discharge plate 63 under the action of gravity. At this time, the first cylinder 52 is started to push the reset plate 51 to push the test piece 2 onto the suction cup 1, so as to facilitate repeated testing of the suction force of the suction cup 1.

[0036] As an alternative embodiment, the distance between the two limiting plates 54 is less than or equal to the diameter size of the suction cup 1. That is, the width of the first slideway 55 is less than or equal to the diameter size of the suction cup 1. Since the diameter size of the test piece 2 is usually smaller than the size of the suction cup 1, this can better adapt the width of the first slideway 55 to the diameter size of the test piece 2, so that the test piece 2 can slide directionally better. When designing, the width of the first slideway 55 can be set according to the actual working conditions.

[0037] As an alternative embodiment, as Figure 2 and Figure 5 shown, one end of the limiting plate 54 close to the suction cup 1 is arranged as an arc structure, and the arc structure is concentric with the suction cup 1 and has a diameter larger than that of the suction cup 1. The design of the arc structure mainly plays a role in transition. The arc structure is concentric with the suction cup 1 and has a diameter larger than that of the suction cup 1, which is beneficial to smoothly introduce the test piece 2 into the first slideway 55 under the action of the push-pull force gauge 41 and reduce the interference between the test piece 2 and the limiting plate 54.

[0038] As an alternative embodiment, as Figure 2 and Figure 6 shown, a baffle 7 is arranged on the top of the limiting plate 54, and the baffle 7 cooperates with the upper surface of the test piece 2 to limit the test piece 2. Among them, the baffle 7 mainly plays a role in limiting, and can limit the movement of the test piece 2 in the vertical direction to reduce the situation that the test piece 2 disengages from the first slideway 55. Thus, the test piece 2 can be further moved in a directed manner.

[0039] In addition, as Figure 1 and Figure 9 shown, a second slideway 321 inclined downward is formed inside the bottom plate 32. The bottom of the discharge chute 61 is inclined, and the top of the second slideway 321 is communicated with the bottom of the discharge chute 61, and the bottom of the second slideway 321 is communicated with the outside of the test box 3. The test piece 2 located in the discharge chute 61 can slide out of the test box 3 under the action of gravity. That is to say, when the push-pull force gauge 41 pushes the damaged test piece 2 into the discharge chute 61, since the bottom of the discharge chute 61 and the second slideway 321 are both inclined structures, the test piece 2 will slide out of the test box 3 under the action of gravity for collection and processing.

[0040] In addition, as Figure 3 、 Figure 4 and Figure 6 shown, a sliding hole 622 is formed on one side of the feed cylinder 62 away from the discharge hole 621. The ceramic suction cup 1 suction force testing device further includes: a driving assembly 9, and the driving assembly 9 includes a second air cylinder 91 and a driving plate 92. The second air cylinder 91 is fixedly connected to the third side plate 35, and the telescopic end of the second air cylinder 91 is fixedly connected to the driving plate 92. The second air cylinder 91 drives the driving plate 92 to selectively pass through the sliding hole 622 to push the test piece 2 in the feed cylinder 62 into the discharge hole 621 and then into the discharge plate 63 and further into the first slideway 55.

[0041] In use, when the damaged test piece 2 is unloaded out of the test box 3 through the second slideway 321, the second cylinder 91 is started at this time. The second cylinder 91 drives the driving plate 92 to extend into the feeding cylinder 62 through the sliding hole 622, and pushes the test piece 2 in the feeding cylinder 62 from the discharging hole 621 onto the discharging plate 63. Then, it can slide from the discharging plate 63 into the first slideway 55, and then the first cylinder 52 drives the reset plate 51 to push the test piece 2 onto the suction cup 1 to cooperate with the suction cup 1.

[0042] In addition, in the vertical direction, the size of the driving plate 92 is smaller than that of the test piece 2, and the size of the discharging hole 621 is larger than the size of one test piece 2 and smaller than the size of two test pieces 2. It should be noted that, in order to save operation, multiple test pieces 2 can be stored in the feeding cylinder 62 at one time. In the vertical direction, the size of the driving plate 92 is smaller than that of the test piece 2, and the size of the discharging hole 621 is larger than the size of one test piece 2 and smaller than the size of two test pieces 2. That is to say, the driving plate 92 can only push one test piece 2 at the bottom layer in the feeding cylinder 62 out of the discharging hole 621 each time, and such operation is more accurate and convenient.

[0043] Furthermore, as Figure 5 shown, the driving plate 92 can be in a plate-like structure, and its width is larger than the radius size of the feeding cylinder 62. In this way, while the driving plate 92 pushes the test piece 2 at the bottom layer of the feeding cylinder 62 to move, it can more stably support the test piece 2 on the upper side, so that the whole device can be more stable during use.

[0044] It should be noted that sealing plugs are arranged at the top of the feeding cylinder 62 and the bottom of the second slideway 321 to improve the sealing performance inside the test box 3. In addition, a one-way valve 11 can be arranged on the third side plate 35. After the air inside the test box 3 is completely pumped out by multiple vacuum extractions, it is difficult to form a pressure difference between the suction cup 1 and the test piece 2, or when it is necessary to open the test box 3, at this time, air can be supplemented into the test box 3 through the one-way valve 11, which is flexible and convenient to use.

[0045] The above describes the embodiments of this embodiment, but this embodiment is not limited to the above specific implementation manners. The above specific implementation manners are only illustrative and not restrictive. Under the inspiration of this embodiment, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of this embodiment.

Claims

1. A ceramic suction cup suction force testing device, comprising: A suction cup (1), a test piece (2) and a vacuum pump (10), characterized in that the ceramic suction cup suction force testing device further comprises: A test chamber (3), which includes a bottom plate (32), and the suction cup (1) is arranged on the bottom plate (32); A test assembly (4), which is arranged in the test chamber (3) and includes: a push-pull force gauge (41) and a power assembly (42), and the power assembly (42) is used to drive the push-pull force gauge (41) to apply a thrust force to the test piece (2); A reset assembly (5), which is arranged in the test chamber (3) and on the side of the suction cup (1) away from the test assembly (4), and includes: a reset plate (51), a first cylinder (52) connected to the reset plate (51), a guide plate (53) and two limit plates (54), the guide plate (53) is arranged on the bottom plate (32), and its top is flush with the top of the suction cup (1), the two limit plates (54) are arranged on the guide plate (53), and a first slideway (55) is defined between the two limit plates (54) to guide the test piece (2), and the first cylinder (52) drives the reset plate (51) to move to selectively push the test piece (2) located in the first slideway (55) back onto the suction cup (1); A material changing assembly (6), which includes: a discharge chute (61), a feed cylinder (62) and a discharge plate (63), the discharge chute (61) is opened on the bottom plate (32) for receiving the test piece (2), the top of the feed cylinder (62) communicates with the outside of the test chamber (3), and a discharge hole (621) communicating with one end of the discharge plate (63) is opened at its bottom, and the other end of the discharge plate (63) communicates with the first slideway (55).

2. The ceramic suction cup suction force testing device according to claim 1, characterized in that, The test chamber (3) further includes: a top plate (31), a first side plate (33), a second side plate (34), a third side plate (35), a fourth side plate (36), a partition plate (37), a support plate (38) and a plurality of support legs (39), the top plate (31) is arranged parallel to the bottom plate (32), the first side plate (33) and the second side plate (34) are arranged parallel to each other, the third side plate (35) and the fourth side plate (36) are arranged parallel to each other, the upper and lower sides of the first side plate (33) to the fourth side plate (36) are respectively fixedly connected to the top plate (31) and the bottom plate (32) to form a hollow cuboid inside, one end of the partition plate (37) is fixedly connected to the third side plate (35) and is parallel to the top plate (31), the bottom of the feed cylinder (62) is arranged on the partition plate (37), and one end of the discharge plate (63) is fixedly connected to the other end of the partition plate (37), the support plate (38) is connected to both the bottom plate (32) and the partition plate (37) at the same time, the plurality of support legs (39) are arranged at intervals at the bottom of the bottom plate (32), and the first cylinder (52) is fixedly connected to the support plate (38).

3. The suction force testing device for ceramic suction cups according to claim 2, characterized in that, The power assembly (42) includes: a first bracket (421), a second bracket (422), a screw (423), a nut seat (424), a connecting seat (425) and a motor (426). The first bracket (421) and the second bracket (422) are both fixedly connected to the bottom plate (32). The two ends of the screw (423) are respectively rotatably connected to the first bracket (421) and the second bracket (422). One end of the screw (423) sequentially passes through the second bracket (422) and the fourth side plate (36) and is fixedly connected to the motor (426). The motor (426) is fixedly connected to the outside of the fourth side plate (36). The nut seat (424) is threadedly connected to the screw (423). The two ends of the connecting seat (425) are respectively fixedly connected to the push-pull force gauge (41) and the nut seat (424).

4. A ceramic suction cup suction force testing device according to claim 1, characterized in that, A second chute (321) that slopes downward is provided inside the bottom plate (32). The bottom of the discharge chute (61) is inclined, and the top of the second chute (321) communicates with the bottom of the discharge chute (61). The bottom of the second chute (321) communicates with the outside of the test box (3). The test piece (2) located in the discharge chute (61) slides out of the second chute (321) under the action of gravity to the outside of the test box (3).

5. The ceramic suction cup suction force testing device according to claim 1, characterized in that, The distance between the two limiting plates (54) is less than or equal to the diameter size of the suction cup (1).

6. The ceramic suction cup suction force testing device according to claim 1, characterized in that, One end of the limiting plate (54) close to the suction cup (1) is provided with an arc-shaped structure. The arc-shaped structure is concentric with the suction cup (1) and has a diameter size larger than the diameter size of the suction cup (1).

7. The ceramic suction cup suction force testing device according to claim 1, characterized in that, A baffle (7) is provided at the top of the limiting plate (54). The baffle (7) cooperates with the upper surface of the test piece (2) to limit the test piece (2).

8. The ceramic suction cup suction force testing device according to claim 1, characterized in that, A push plate (8) is provided at the end of the push-pull force gauge (41). The push plate (8) is configured as an arc-shaped structure, and the curvature of the push plate (8) is the same as the curvature of the test piece (2); and / or The reset plate (51) is configured as an arc-shaped structure, and the curvature of the reset plate (51) is the same as the curvature of the test piece (2).

9. The ceramic suction cup suction force testing device according to claim 2, characterized in that, A sliding hole (622) is provided on one side of the feed cylinder (62) away from the discharge hole (621); The ceramic suction cup suction test device further includes: a driving assembly (9). The driving assembly (9) includes: a second air cylinder (91) and a driving plate (92). The second air cylinder (91) is fixedly connected to the third side plate (35). The telescopic end of the second air cylinder (91) is fixedly connected to the driving plate (92). The second air cylinder (91) drives the driving plate (92) to selectively pass through the sliding hole (622) to push the test piece (2) in the feed cylinder (62) from the discharge hole (621) into the discharge plate (63) and then into the first chute (55); and / or The driving plate (92) is a plate-shaped structure, and its width is greater than the radius size of the feed cylinder (62).

10. The suction force testing device for a ceramic suction cup according to claim 9, characterized in that, In the vertical direction, the size of the driving plate (92) is smaller than the size of the test piece (2); and The size of the discharge hole (621) is larger than the size of one test piece (2) and smaller than the size of two test pieces (2).

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