A ceramic suction cup suction force testing device

Abstract

The present invention relates to the field of suction cup testing technology, and discloses a ceramic suction cup suction test device, including a suction cup, a test piece, a test box, a test assembly, a reset assembly, a material changing assembly and a vacuum pump. The test assembly 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 thrust to the test piece; the reset assembly includes a reset plate, a first cylinder, a guide plate and two limit plates, the top of the guide plate is flush with the top of the suction cup, and a first slide is defined between the two limit plates to guide the test piece; the material changing assembly includes a discharge chute, a feed barrel and a discharge plate, the discharge chute is used to receive the test piece, the top of the feed barrel is connected to the outside of the test box, and the bottom is provided with a discharge hole connected to the discharge plate, and the discharge plate is connected to the first slide. The present invention can push the test piece back onto the suction cup, which is convenient for repeatedly testing the suction of the suction cup, and can replace damaged test pieces, which is beneficial to improving the accuracy of the test.

Description

Technical Field

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

[0002] Ceramic vacuum chucks, due to their excellent high-temperature and corrosion resistance, high hardness, and stable chemical properties, are widely used in semiconductor manufacturing, precision electronics assembly, and optical component processing. In applications such as wafer handling and glass substrate fixturing, ceramic chucks achieve non-destructive clamping of workpieces through vacuum adsorption. 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, the chip is usually placed on top of the cup, and then the inside of the ceramic vacuum cup is evacuated. A force gauge is then used to apply pressure to the chip. The force changes on the force gauge during the movement of the chip are observed and recorded to determine the suction force of the ceramic vacuum cup. However, after each test, the operator needs to put the chip back in place, which requires opening the test chamber. This will allow a large amount of air to re-enter the test chamber, requiring a long vacuum operation to be repeated, making the overall operation more cumbersome. Summary of the Invention

[0004] The present invention provides a ceramic suction cup suction test device, which solves the technical problem in the related art that after each test process, the operator needs to put the chip back to its original position, which requires opening the test box and re-performing the vacuum operation, which is a relatively cumbersome operation.

[0005] The present invention provides a ceramic suction cup suction test device, comprising a suction cup, a test piece and a vacuum pump; the ceramic suction cup suction test device also includes a test box, which includes a bottom plate, and the suction cup is arranged on the bottom plate; a test assembly, which is arranged in the test box, 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 box and is located 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, and the guide plate The plate is arranged on the bottom plate, and its top is flush with the top of the suction cup, two limit plates are arranged on the guide plate, and a first slide 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 slide back to the suction cup; the material changing assembly includes: a discharge trough, a feed barrel and a discharge plate, the discharge trough is opened on the bottom plate for receiving the test piece, the top of the feed barrel is connected to the outside of the test box, and a discharge hole connected to one end of the discharge plate is opened at its bottom, and the other end of the discharge plate is connected to the first slide.

[0006] As a further improvement of the present invention, the test box also includes: a top plate, a first side plate, a second side plate, a third side plate, a fourth side plate, a partition, a support plate and multiple 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 to fourth side plates are respectively fixedly connected to the top plate and the bottom plate to form a rectangular parallelepiped with a hollow interior, one end of the partition is fixedly connected to the third side plate and is parallel to the top plate, the bottom of the feed barrel is arranged on the partition, and one end of the unloading plate is fixedly connected to the other end of the partition, the support plate is connected to the bottom plate and the partition at the same time, multiple support legs are arranged at intervals at the bottom of the bottom plate, and 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 fixedly connected to the base plate, and the two ends of the screw are respectively rotatably connected to the first bracket and the second bracket. One end of the screw passes through the second bracket and the fourth side plate in turn and is fixedly connected to the motor. The motor is fixedly connected to the outer side of the fourth side plate. The nut seat is threadedly connected to the screw, and 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 slide inclined downward is provided inside the bottom plate, the bottom of the discharge trough is inclined, and the top of the second slide is connected to the bottom of the discharge trough, and the bottom of the second slide is connected to the outside of the test box. The test piece located in the discharge trough slides out from the second slide to the outside of the test box 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 of the suction cup.

[0010] As a further improvement of the present invention, one end of the limiting plate close to the suction cup is configured as an arc structure, and the arc structure is concentrically arranged with the suction cup and has a diameter larger than the diameter of the suction cup.

[0011] As a further improvement of the present invention, a baffle is provided on the top of the limiting plate, and 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 dynamometer, and the push plate is constructed as an arc structure, and the curvature of the push plate is the same as the curvature of the test piece; and / or the reset plate is constructed as 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 provided on the side of the feed barrel away from the discharge hole; the ceramic suction cup suction test device also includes: a driving assembly, the driving assembly includes: a second cylinder and a driving plate, the second cylinder is fixedly connected to the third side plate, 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 to push the test piece in the feed barrel from the discharge hole to the unloading plate and then into the first slide; and / or the driving plate is a plate-like structure, and its width is greater than the radius of the feed barrel.

[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 discharge hole is larger 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:

[0016] 1. The present invention arranges a suction cup inside the test box, adsorbs the test piece on the suction cup, and uses a power component to drive a push-pull dynamometer to apply pressure to the test piece, thereby measuring the suction force of the suction cup. In addition, two limit plates are arranged on the guide plate. The first sliding formed between the two limit plates can enable the test piece to move in a directional manner after it is separated from the suction cup, and then the first cylinder can be used to drive the reset plate to push the test piece back onto the suction cup, thereby facilitating repeated testing of the suction force of the suction cup, being more convenient to use, and being conducive to improving the accuracy of the test.

[0017] 2. The present invention provides a discharge chute on the bottom plate, the discharge chute is connected to the outside of the test box through a second slide, and a feed cylinder connected to the outside is provided on the partition plate. The feed cylinder is used to store the test pieces and is connected to the first slide through a discharge plate. In this way, when the test piece is damaged, the damaged test piece can be unloaded from the second slide by using the test assembly, and the new test piece in the feed cylinder can be pushed onto the suction cup by using the cooperation between the driving assembly and the reset assembly for retesting, thereby avoiding the influence of the damaged test piece on the test result, which is beneficial to improving the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a ceramic suction cup suction force testing device according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of a first main cross-sectional three-dimensional structure of a ceramic suction cup suction force testing device according to an embodiment of the present invention;

[0020] Figure 3 1 is a schematic diagram of a front cross-sectional structure of a ceramic suction cup suction force testing device according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of a second main cross-sectional three-dimensional structure of a ceramic suction cup suction force testing device according to an embodiment of the present invention;

[0022] Figure 5 1 is a schematic top view of a cross-sectional structure of a ceramic suction cup suction force testing device according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of a first top-view cross-sectional three-dimensional structure of a ceramic suction cup suction force testing device according to an embodiment of the present invention;

[0024] Figure 7 2 is a schematic diagram of a second top-view cross-sectional three-dimensional structure of a ceramic suction cup suction force testing device according to an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of a first side-view cross-sectional three-dimensional structure of a ceramic suction cup suction force testing device according to an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of a second side-view cross-sectional three-dimensional structure of a ceramic suction cup suction force testing device according to an embodiment of the present invention.

[0027] In the figure: 1. Suction cup; 2. Test piece; 3. Test box; 31. Top plate; 32. Bottom plate; 321. Second slide; 33. First side plate; 34. Second side plate; 35. Third side plate; 36. Fourth side plate; 37. Partition plate; 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 slide; 6. Material changing assembly; 61. Discharge chute; 62. Feed barrel; 621. Discharge hole; 622. Sliding hole; 63. Unloading plate; 7. Baffle; 8. Push plate; 9. Drive assembly; 91. Second cylinder; 92. Drive plate; 10. Vacuum pump; 11. One-way valve. DETAILED DESCRIPTION

[0028] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed solely to enable those skilled in the art to better understand and implement the subject matter described herein, and that the functions and arrangements of the elements discussed may be varied without departing from the scope of this specification. Various examples may omit, substitute, or add various processes or components as needed. In addition, features described with respect to some examples may also be combined in other examples.

[0029] like Figures 1-9As shown, a ceramic suction cup suction force testing device includes a suction cup 1, a cylindrical test piece 2, a test chamber 3, a reset assembly 5, a material replacement assembly 6, and a vacuum pump 10. The suction cup 1 is a ceramic suction cup 1, which is conventional technology. To determine whether the suction force of the suction cup 1 meets the qualified standard, the suction force of the suction cup 1 needs to be tested. The ceramic suction cup 1 can be used in the semiconductor field, so the test piece 2 can be a chip. In this embodiment, the test piece 2 is 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 air from the suction cup 1, so that the suction cup 1 can absorb the test piece 2. The test chamber 3 mainly serves as a mounting and support carrier, providing a mounting and support carrier for 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 back onto the suction cup 1 after it has been separated from the suction cup 1, thereby facilitating repeated suction force testing of the suction cup 1 and improving the accuracy of the test results. During the suction test of the suction cup 1, the test piece 2 may be damaged. The material replacement component 6 is mainly used to replace the damaged test piece 2, thereby reducing the impact of the damaged test piece 2 on the suction test result of the suction cup 1.

[0030] Specifically, if Figure 1-Figure 3 As 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 is disposed above the bottom plate 32. The first side plate 33 and the second side plate 34 are arranged parallel to each other, and 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 to fourth side plates 33 to 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 end of the third side plate 35 and the fourth side plate 36, and 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 form a rectangular parallelepiped with a hollow interior. In addition, one end of the partition 37 is fixedly connected to the third side plate 35, and the partition 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 37, which makes the installation of the partition 37 more secure and stable. A plurality of support legs 39 are fixedly connected to the bottom of the bottom plate 32 at intervals to support the bottom plate 32, thereby making the testing operation more stable. The vacuum pump 10 can be fixedly connected to the fourth side plate 36, or of course, it can be connected to other suitable installation locations.

[0031] 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 component 4 is used to push the test piece 2 until the test piece 2 detaches from the suction cup 1, and the change in pressure in the test component 4 is collected and observed.

[0032] 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.

[0033] In addition, as Figure 2-Figure 5 shown, the test component 4 is arranged in the test box 3. The test component 4 includes: a push-pull force gauge 41 and a power component 42, and the power component 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 contacted with the test piece 2, and the power component 42 drives the push-pull force gauge 41 to apply pressure to the test piece 2. [[ID=#]]

[0034] Specifically, the power component 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 U-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. The two ends of the screw 423 are respectively rotationally connected to the first bracket 421 and the second bracket 422, and 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 4 . The nut seat 424 is threadedly connected to the screw 423, and the two ends of the connecting seat 425 are respectively fixedly connected to the push-pull force gauge 41 and the nut seat 424.

[0035] 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.

[0036] 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. The guide rod 427 has a guide hole 428 formed along the axis of the screw 423. The nut seat 424 is slidably connected to the guide hole 428. This prevents the nut seat 424 from swinging as the screw 423 rotates, thereby making the movement of the push-pull dynamometer 41 more stable.

[0037] 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, the push plate 8 is fixedly connected to the test head of the push-pull force gauge 41. The push plate 8 is constructed in an arc-shaped structure, and the curvature of the push plate 8 is the same as the curvature of the test piece 2. This can increase the contact area between the push plate 8 and the test piece 2, thereby protecting the test piece 2 and extending the service life of the test piece 2.

[0038] In addition, if Figure 2-Figure 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.

[0039] It should be noted that the initial position of the reset plate 51 can be set at the end of the first slide 55 away from the push-pull force gauge 41, so as to prevent the test piece 2 from escaping from the first slide 55, thereby facilitating the test piece 2 to be pushed back onto the suction cup 1. The length of the first slide 55 can be set according to the 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.

[0040] During use, when the test piece 2 is pushed by the dynamometer 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 and no damage occurs, 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.

[0041] As an optional embodiment, the reset plate 51 is constructed as an arc-shaped structure, and the curvature of the reset plate 51 is the same as the curvature 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.

[0042] Furthermore, if Figure 2-Figure 4 as well as Figure 6 As shown, the material changing assembly 6 includes a discharge chute 61, a feed cylinder 62 and a discharge plate 63. The discharge chute 61 is provided on the bottom plate 32 for receiving the test piece 2. It should be noted that the discharge chute 61 is provided near 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, and 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.

[0043] The top of the feed barrel 62 is connected to the outside of the test box 3, and the bottom of the feed barrel 62 is fixedly connected to the partition 37. Specifically, the top of the feed barrel 62 is connected to the outside through the top plate 31, which makes it easy to load the test piece 2 into the feed barrel 62. The bottom of the feed barrel 62 is provided with a discharge hole 621 that is connected to one end of the discharge plate 63. It should be noted that the discharge plate 63 is arranged at an angle, and the height of the discharge hole 621 is higher than the height of the first slide 55. One end of the discharge plate 63 is fixedly connected to one end of the partition 37, and the other end of the discharge plate 63 is connected to the first slide 55, but does not contact it, that is, the other end of the discharge plate 63 is located above the first slide 55.

[0044] During use, a new test piece 2 can be placed in the feed barrel 62 through the top of the feed barrel 62, and then unloaded 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 from the other end of the discharge plate 63 into the first slide 55 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.

[0045] As an optional embodiment, the distance between the two limiting plates 54 is less than or equal to the diameter of the suction cup 1 . That is, the width of the first slideway 55 is less than or equal to the diameter of the suction cup 1 . Since the diameter of the test piece 2 is typically smaller than that of the suction cup 1 , this allows the width of the first slideway 55 to better match the diameter of the test piece 2 , thereby enabling better directional sliding of the test piece 2 . During design, the width of the first slideway 55 can be set based on actual operating conditions.

[0046] As an optional embodiment, Figure 2 and Figure 5 As shown, the end of the limit plate 54 near the suction cup 1 is configured as an arc-shaped structure. The arc structure is arranged concentrically with the suction cup 1 and has a larger diameter than the suction cup 1. The design of the arc structure mainly serves as a transition. The arc structure is arranged concentrically with the suction cup 1 and has a larger diameter than the suction cup 1. This facilitates the test piece 2 to smoothly enter the first slide 55 under the action of the push-pull force gauge 41, reducing interference between the test piece 2 and the limit plate 54.

[0047] As an optional embodiment, Figure 2 and Figure 6 As shown, a baffle 7 is provided on the top of the limiting plate 54. The baffle 7 cooperates with the upper surface of the test piece 2 to limit the position of the test piece 2. The baffle 7 primarily serves as a limiter, limiting the vertical movement of the test piece 2 and preventing the test piece 2 from escaping from the first slide 55. This further enables the test piece 2 to move in a directional manner.

[0048] In addition, if Figure 1 and Figure 9 As shown, a downwardly sloping second slide 321 is defined within the bottom plate 32. The bottom of the discharge chute 61 is tilted, and the top of the second slide 321 communicates with the bottom of the discharge chute 61. The bottom of the second slide 321 communicates with the exterior of the test chamber 3. This allows the test piece 2 within the discharge chute 61 to slide out of the test chamber 3 under the action of gravity. In other words, when the dynamometer 41 pushes a damaged test piece 2 into the discharge chute 61, the tilted bottom of the discharge chute 61 and the second slide 321 allow the test piece 2 to slide out of the test chamber 3 under the action of gravity.

[0049] In addition, if Figure 3 、 Figure 4 and Figure 6 As shown, a sliding hole 622 is defined on the side of the feed barrel 62 away from the discharge hole 621. The device for testing the suction force of a ceramic suction cup 1 further includes a drive assembly 9, which includes a second cylinder 91 and a drive plate 92. The second cylinder 91 is fixedly connected to the third side plate 35, and the telescopic end of the second cylinder 91 is fixedly connected to the drive plate 92. The second cylinder 91 drives the drive plate 92 to selectively pass through the sliding hole 622, thereby pushing the test piece 2 in the feed barrel 62 through the discharge hole 621 to the discharge plate 63 and then into the first slide 55.

[0050] During use, when the damaged test piece 2 is discharged to the outside of the test box 3 through the second slide 321, the second cylinder 91 is started at this time, and the second cylinder 91 drives the driving plate 92 to extend into the feed barrel 62 through the sliding hole 622, and pushes the test piece 2 in the feed barrel 62 from the discharge hole 621 to the discharge plate 63, and then can slide from the discharge plate 63 to the first slide 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.

[0051] In addition, in the vertical direction, the size of the drive 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. It should be noted that in order to save operation, multiple test pieces 2 can be loaded into the feed barrel 62 at one time. In the vertical direction, the size of the drive 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. In other words, the drive plate 92 can only push the test piece 2 at the bottom layer of the feed barrel 62 out of the discharge hole 621 at a time, which makes the operation more accurate and convenient.

[0052] Furthermore, if Figure 5 As shown, the driving plate 92 can be a plate-shaped structure, and its width is greater than the radius of the feed barrel 62. In this way, the driving plate 92 can more stably support the test piece 2 on the upper side while pushing the test piece 2 at the bottom layer of the feed barrel 62 to move, thereby making the entire device more stable during use.

[0053] It should be noted that sealing plugs are provided at the top of the feed barrel 62 and the bottom of the second slide 321 to enhance the sealing of the interior of the test chamber 3. Furthermore, a one-way valve 11 can be provided on the third side panel 35. After multiple vacuum pumping operations have completely evacuated the air from the test chamber 3, a pressure differential is unlikely to form between the suction cup 1 and the test piece 2. Alternatively, when the test chamber 3 needs to be opened, air can be replenished into the test chamber 3 through the one-way valve 11, providing flexibility and convenience.

[0054] The above describes the embodiments of this embodiment, but this embodiment is not limited to the above specific implementation methods. The above specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms based on the inspiration of this embodiment, all of which are protected by 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), wherein the ceramic suction cup suction force testing device further comprises: A test box (3) comprising a bottom plate (32) and a partition plate (37), wherein the suction cup (1) is arranged on the bottom plate (32); A test assembly (4) is arranged in the test box (3), and comprises: a push-pull force gauge (41) and a power assembly (42), wherein the power assembly (42) is used to drive the push-pull force gauge (41) to apply a thrust to the test piece (2); A reset assembly (5) is arranged in the test box (3) and is located on a side of the suction cup (1) away from the test assembly (4), comprising: a reset plate (51), a first cylinder (52) connected to the reset plate (51), a guide plate (53) and two limit plates (54), wherein 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), the reset plate (51) is arranged on one end of the first slideway (55) away from the push-pull dynamometer (41), 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) comprises: a discharge trough (61), a feed barrel (62) and a discharge plate (63); the discharge trough (61) is provided on the bottom plate (32), and the discharge trough (61) is arranged close to the guide plate (53) and away from the suction cup (1), for receiving the test piece (2); the top of the feed barrel (62) is connected to the outside of the test box (3); the bottom of the feed barrel (62) is fixedly connected to the partition (37); the bottom of the feed barrel (62) is provided with a discharge hole (621) connected to one end of the discharge plate (63); the other end of the discharge plate (63) is connected to the first slide (55); the discharge plate (63) is inclined, and the height of the discharge hole (621) is higher than the height of the first slide (55).

2. A ceramic suction cup suction test device according to claim 1, characterized in that: The test box (3) further comprises: 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 support plate (38) and a plurality of support legs (39), wherein the top plate (31) is arranged in parallel with the bottom plate (32), the first side plate (33) and the second side plate (34) are arranged in parallel, the third side plate (35) and the fourth side plate (36) are arranged in parallel, and 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 rectangular parallelepiped with a hollow interior, one end of the partition (37) is fixedly connected to the third side plate (35) and is parallel to the top plate (31), the bottom of the feed barrel (62) is set on the partition (37), and one end of the discharge plate (63) is fixedly connected to the other end of the partition (37), the support plate (38) is connected to the bottom plate (32) and the partition (37) at the same time, a 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. A ceramic suction cup suction force testing device 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) passes through the second bracket (422) and the fourth side plate (36) in sequence and is fixedly connected to the motor (426). The motor (426) is fixedly connected to the outer side 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 dynamometer (41) and the nut seat (424).

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

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 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 as an arc-shaped structure, and the arc-shaped structure is provided concentrically with the suction cup (1) and has a diameter larger than the diameter 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 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).

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 dynamometer (41), the push plate (8) is constructed in 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 constructed in 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 a side of the feed cylinder (62) away from the discharge hole (621); The ceramic suction cup suction force testing device further comprises: a driving assembly (9), the driving assembly (9) comprising: a second cylinder (91) and a driving plate (92), the second cylinder (91) being fixedly connected to the third side plate (35), the telescopic end of the second cylinder (91) being fixedly connected to the driving plate (92), the second cylinder (91) driving the driving plate (92) to selectively pass through the sliding hole (622) to push the test piece (2) in the feed barrel (62) from the discharge hole (621) to the discharge plate (63) and then into the first slideway (55); and / or The driving plate (92) is a plate-shaped structure, and its width is greater than the radius of the feeding cylinder (62).

10. The ceramic suction cup suction force testing device 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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