A test device for the impact resistance of glass covers

Abstract

This utility model discloses a glass cover plate impact resistance testing device, including a base plate, a locking mechanism, a support plate, a suspension mechanism, a slider, a lifting mechanism, a pull wire, and an impact hammer. The locking mechanism locks the glass cover plate to the upper side of the base plate. The support plate is vertically fixed to the upper side of the base plate. The slider is located at the upper end of the support plate and is slidably connected to the support plate, driven by the lifting mechanism. The slider is connected to the impact hammer via a pull wire. The suspension mechanism is installed in the middle of the support plate and is detachably connected to the impact hammer. This utility model proposes a glass cover plate impact resistance testing device, which provides more accurate impact force when the impact hammer strikes the glass cover plate.

Description

Technical Field

[0001] This utility model relates to the field of glass cover plate testing technology, and in particular to a glass cover plate impact resistance testing device. Background Technology

[0002] Glass covers are widely used in mobile phones, tablets, and other fields. After their development, existing glass covers need to undergo impact resistance testing. Existing impact resistance testing devices for glass covers, as shown in patent application number CN202420250227.0, include a guide rod, an impact hammer, a pull wire, a winding cylinder, and a motor. During testing, the glass cover to be tested is placed under the impact hammer. The motor drives the winding cylinder, which winds the pull wire, lifting the impact hammer. When the impact hammer strikes the glass cover, the motor reverses direction, driving the winding cylinder to release the pull wire. The impact hammer then strikes the glass cover downwards along the guide rod, completing the test.

[0003] In existing glass cover impact resistance testing devices, there is damping between the impact hammer and the guide rod during the falling process. In addition, the winding cylinder needs to release the pull wire accordingly when the impact hammer falls. If the pull wire release speed is not fast enough, the impact hammer is easily subjected to the tension of the pull wire, resulting in a smaller impact force of the impact hammer hitting the glass cover, thus affecting the test results. Utility Model Content

[0004] To address the shortcomings of existing glass cover impact resistance testing devices where the impact force of the impact hammer hitting the glass cover is often too small, this invention proposes a glass cover impact resistance testing device that provides a more accurate assessment of the impact force exerted by the impact hammer on the glass cover.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A glass cover plate impact resistance testing device includes a base plate, a locking mechanism, a support plate, a suspension mechanism, a slider, a lifting mechanism, a pull wire, and an impact hammer. The locking mechanism is used to lock the glass cover plate to the upper side of the base plate. The support plate is vertically fixedly connected to the upper side of the base plate. The slider is set at the upper end of the support plate and is slidably connected to the support plate. It is driven by the lifting mechanism. The slider is connected to the impact hammer through the pull wire. The suspension mechanism is installed in the middle of the support plate and is detachably connected to the impact hammer.

[0007] With the above settings, when the suspension mechanism is connected to the impact hammer, the slider can move downward in advance to loosen the cable, separate the suspension mechanism from the impact hammer, and the impact hammer is basically not subject to the tension of the cable during its fall. The impact hammer's falling resistance is smaller, preventing the impact hammer from falling with too little impact, thus making the impact force of the impact hammer on the glass cover plate more accurate.

[0008] Furthermore, the locking mechanism includes a support block, a pressure plate, and a first electric cylinder. There are two support blocks and two pressure plates, with each support block corresponding to one of the two pressure plates. The support blocks are fixedly connected to the upper side of the base plate, and the pressure plates are located on the upper side of the support blocks. The first electric cylinder is vertically mounted on the base plate and connected to the pressure plates.

[0009] With the above setup, the first electric cylinder drives the pressure plate to move up and down to loosen or tighten the glass cover, making operation convenient.

[0010] Furthermore, the impact hammer includes an impact hammer body, a connecting rod and a connector, the lower end of the connecting rod is detachably connected to the impact hammer body, the upper end of the connecting rod is fixedly connected to the connector, and a pull wire is connected to the upper side of the connector.

[0011] The suspension mechanism includes a support plate, a sleeve, a second electric cylinder, and a fork. The support plate is horizontally fixed to the middle of the support plate, and the sleeve is vertically fixed to the lower side of the support plate. A through hole is provided on the side of the sleeve, and the connector is located in the sleeve. The second electric cylinder is horizontally installed on the side of the sleeve, and the output shaft of the second electric cylinder is connected to the fork. The fork extends into the sleeve through the through hole and supports the connector.

[0012] The above setup allows for easy replacement of the impact hammer body to perform tests with different impact forces; the second electric cylinder drives the fork to disengage the impact hammer.

[0013] Furthermore, the fork is U-shaped, the output shaft of the second electric cylinder is connected to the middle of the fork, and the two ends of the fork are set on opposite sides of the connecting rod and support the connecting head.

[0014] Furthermore, the connector is conical in shape.

[0015] Specifically, it facilitates the insertion of the connector into the sleeve.

[0016] Furthermore, the support plate is provided with a guide groove extending vertically, the slider passes through the guide groove and is slidably connected to the guide groove, the lifting mechanism includes a pulley, a motor and a belt, the belt extends vertically, the slider is connected to the belt, the pulley supports both ends of the belt and is rotatably connected to the support plate, the motor is mounted on the support plate and is connected to the pulley.

[0017] With the above setup, the motor drives the slider to move up and down via a belt.

[0018] Furthermore, the motor is configured as a servo motor.

[0019] The above settings increase the accuracy of the lifting mechanism. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the test apparatus for an embodiment.

[0021] Figure 2This is another schematic diagram of the test apparatus for an embodiment.

[0022] Figure 3 This is a front view of the test apparatus in an embodiment.

[0023] Figure 4 This is a cross-sectional view of the test apparatus in an embodiment.

[0024] Figure 5 for Figure 4 Enlarged view of point A.

[0025] Figure 6 for Figure 5 BB cross-sectional view.

[0026] Figure 7 This is a schematic diagram of the impact hammer falling as shown in the embodiment.

[0027] Figure 8 for Figure 7 Enlarged view of point C. Detailed Implementation

[0028] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0029] like Figures 1 to 8 A glass cover plate impact resistance testing device includes a base plate 3, a locking mechanism 4, a support plate 5, a suspension mechanism 6, a slider 7, a lifting mechanism 8, a pull wire 10, and an impact hammer 9. The locking mechanism 4 is used to lock the glass cover plate to the upper side of the base plate 3. The support plate 5 is vertically fixedly connected to the upper side of the base plate 3. The slider 7 is set at the upper end of the support plate 5 and is slidably connected to the support plate 5. It is driven by the lifting mechanism 8. The slider 7 is connected to the impact hammer 9 through the pull wire 10. The suspension mechanism 6 is installed in the middle of the support plate 5 and is detachably connected to the impact hammer 9.

[0030] With the above settings, when the suspension mechanism 6 is connected to the impact hammer 9, the slider 7 can move downward in advance to loosen the pull wire 10, and the suspension mechanism 6 is separated from the impact hammer 9. During the fall of the impact hammer 9, it is basically not subject to the tension of the pull wire 10, and the falling resistance of the impact hammer 9 is smaller, which prevents the impact of the impact hammer 9 from being too small, thereby making the impact force of the impact hammer 9 on the glass cover plate more accurate.

[0031] The base plate 3 of this application is horizontally set. The locking mechanism 4 can take various forms, such as an electric clamp, to horizontally lock the glass cover to be tested onto the upper side of the base plate 3. The support plate 5 is vertically fixed to the upper side of the base plate 3. The locking mechanism 4 is located on the front side of the support plate 5. The slider 7 is set as a long strip structure. The rear end of the slider 7 is slidably connected to the support plate 5. The front end of the slider 7 is connected to the impact hammer 9 through a pull line 10. The pull line 10 is made of cotton thread or kite string, which is lighter and less prone to knotting, further reducing the falling resistance of the impact hammer 9. The suspension mechanism 6 is manually or electrically disengaged from the impact hammer 9. Initially, such as Figure 1 The lifting mechanism 8 raises the slider 7, and the slider 7 raises the impact hammer 9 via the pull wire 10. The impact hammer 9 is detachably connected to the suspension mechanism 6. The distance between the lower side of the impact hammer 9 and the upper side of the glass cover to be tested is set according to the required impact force. In this application, the distance between the lower side of the impact hammer 9 and the upper side of the glass cover is 30cm. During the test, the lifting mechanism 8 drives the slider 7 to move downward. The slider 7 moves to the suspension mechanism 6, and the pull wire 10 is completely slack. Figure 7 and Figure 8 The suspension mechanism 6 releases the impact hammer 9, which moves downward under gravity. During its descent, the impact hammer 9 drives the lower end of the pull cable 10 downward. Although the lower end of the pull cable 10 remains connected to the impact hammer 9, the length of the pull cable 10 is greater than the distance from the slider 7 to the glass cover. That is, when the impact hammer 9 strikes the glass cover, the pull cable 10 is still slack. During its descent, the impact hammer 9 is essentially unaffected by the tension of the pull cable 10, ensuring that the resistance during the fall of the impact hammer 9 is minimized, thus ensuring the accuracy of the impact force when the impact hammer 9 strikes the glass cover. Observe the condition of the glass cover after the impact to determine whether the impact resistance of the glass cover is qualified. After removing the glass cover from the locking mechanism 4 and replacing it, the lifting mechanism 8 drives the slider 7 upward. After the impact hammer 9 is reconnected to the suspension mechanism 6, it is ready for the next test.

[0032] As one implementation, the locking mechanism 4 includes a support block 41, a pressure plate 42, and a first electric cylinder 43. There are two support blocks 41 and two pressure plates 42, with each support block 41 corresponding to one pressure plate 42. The support block 41 is fixedly connected to the upper side of the base plate 3, and the pressure plate 42 is set on the upper side of the support block 41. The first electric cylinder 43 is vertically installed on the base plate 3 and connected to the pressure plate 42.

[0033] With the above settings, the first electric cylinder 43 drives the pressure plate 42 to move up and down to loosen or tighten the glass cover, making operation convenient.

[0034] The application provides two support blocks 41, which are arranged left and right and fixedly connected to the upper side of the base plate 3. During testing, the left and right ends of the glass cover are placed on the support blocks 41. The first electric cylinder 43 drives the pressure plate 42 to move downward. The pressure plate 42 presses the two ends of the glass cover onto the support plate 5 to prevent the glass cover from moving.

[0035] As one implementation, the impact hammer 9 includes an impact hammer body 91, a connecting rod 92 and a connector 93. The lower end of the connecting rod 92 is detachably connected to the impact hammer body 91, and the upper end of the connecting rod 92 is fixedly connected to the connector 93. The pull wire 10 is connected to the upper side of the connector 93.

[0036] The suspension mechanism 6 includes a support plate 61, a sleeve 62, a second electric cylinder 63, and a fork 64. The support plate 61 is horizontally fixed to the middle of the support plate 5, and the sleeve 62 is vertically fixed to the lower side of the support plate 61. A through hole is provided on the side of the sleeve 62, and the connector 93 is located in the sleeve 62. The second electric cylinder 63 is horizontally installed on the side of the sleeve 62. The output shaft of the second electric cylinder 63 is connected to the fork 64. The fork 64 extends into the sleeve 62 through the through hole and supports the connector 93.

[0037] The above setup facilitates the replacement of the impact hammer body 91 for testing different impact forces; the second electric cylinder 63 drives the fork 64 to disengage the impact hammer 9.

[0038] Specifically, the lower end of the connecting rod 92 is threadedly connected to the upper side of the impact hammer body 91. By rotating the impact hammer body 91, different sizes of impact hammer bodies 91 can be replaced to perform tests with different impact forces. The outer diameter of the connector 93 is larger than the outer diameter of the connecting rod 92. When the suspension mechanism 6 is connected to the impact hammer 9, the connecting rod 92 and the connector 93 are set in the sleeve 62. The fork 64 is forked on the connecting rod 92 and supports the connector 93 to prevent the impact hammer 9 from falling. The support plate is used to support the pull line. After the slider moves downward, the support plate can support the pull line to prevent it from falling to the ground. The second electric cylinder 63 drives the fork 64 to move outward. After the fork 64 moves away from the lower side of the connector 93, the impact hammer 9 moves downward under the action of gravity.

[0039] In one implementation, the fork 64 is U-shaped, the output shaft of the second electric cylinder 63 is connected to the middle of the fork 64, and the two ends of the fork 64 are set on opposite sides of the connecting rod 92 and support the connecting head 93.

[0040] The middle part of the fork 64 of this application is located outside the sleeve 62. Both ends of the fork 64 extend into the sleeve 62 through the through hole to support the connector 93. When the second electric cylinder 63 drives the fork 64 to move outward, after the end of the fork 64 separates from the connector 93, the impact hammer 9 separates from the sleeve 62 and moves downward.

[0041] As one implementation method, connector 93 is conical in shape.

[0042] Specifically, it facilitates the insertion of connector 93 into sleeve 62.

[0043] As one implementation, the support plate 5 is provided with a guide groove 11 extending vertically, the slider 7 passes through the guide groove 11 and is slidably connected to the guide groove 11, the lifting mechanism 8 includes a pulley 81, a motor 82 and a belt 83, the belt 83 extends vertically, the slider 7 is connected to the belt 83, the pulley 81 supports both ends of the belt 83 and is rotatably connected to the support plate 5, the motor 82 is mounted on the support plate 5 and is connected to the pulley 81.

[0044] With the above settings, motor 82 drives slider 7 to move up and down via belt 83.

[0045] In this application, the motor 82 is installed in the middle of the support plate 5. When the motor 82 drives the pulley 81 on the lower side to rotate, the belt 83 starts to run. The slider 7 is connected to one side of the belt 83 and moves up and down with the belt 83.

[0046] As one implementation method, motor 82 is configured as a servo motor.

[0047] The above settings increase the accuracy of the lifting mechanism 8.

[0048] The motor 82 in this application is a servo motor. The servo motor has the characteristic of high motion precision, which makes the up and down movement of the slider 7 more precise, and enables the impact hammer 9 to be stably supported to the suspension mechanism 6 and connected by the suspension mechanism 6.

[0049] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A device for testing the impact resistance of a glass cover plate, characterized by, It includes a base plate, a locking mechanism, a support plate, a suspension mechanism, a slider, a lifting mechanism, a pull wire, and an impact hammer. The locking mechanism is used to lock the glass cover plate to the upper side of the base plate. The support plate is vertically fixed to the upper side of the base plate. The slider is set at the upper end of the support plate and is slidably connected to the support plate. It is driven by the lifting mechanism. The slider is connected to the impact hammer through the pull wire. The suspension mechanism is installed in the middle of the support plate and is detachably connected to the impact hammer.

2. The glass cover plate impact resistance testing device of claim 1, wherein, The locking mechanism includes a support block, a pressure plate, and a first electric cylinder. There are two support blocks and two pressure plates, with each support block corresponding to one pressure plate. The support block is fixedly connected to the upper side of the base plate, and the pressure plate is located on the upper side of the support block. The first electric cylinder is vertically mounted on the base plate and connected to the pressure plate.

3. The glass cover plate impact resistance testing apparatus of claim 2, wherein, The impact hammer includes an impact hammer body, a connecting rod, and a connecting head. The lower end of the connecting rod is detachably connected to the impact hammer body, and the upper end of the connecting rod is fixedly connected to the connecting head. The pull wire is connected to the upper side of the connecting head. The suspension mechanism includes a support plate, a sleeve, a second electric cylinder, and a fork. The support plate is horizontally fixed to the middle of the support plate, and the sleeve is vertically fixed to the lower side of the support plate. A through hole is provided on the side of the sleeve, and the connector is located in the sleeve. The second electric cylinder is horizontally installed on the side of the sleeve, and the output shaft of the second electric cylinder is connected to the fork. The fork extends into the sleeve through the through hole and supports the connector.

4. The glass cover plate impact resistance testing apparatus of claim 3, wherein, The fork is U-shaped, and the output shaft of the second electric cylinder is connected to the middle of the fork. The two ends of the fork are located on opposite sides of the connecting rod and support the connecting head.

5. The glass cover plate impact resistance testing apparatus of claim 3, wherein, The connector is conical in shape.

6. The glass cover plate impact resistance testing apparatus of claim 1, wherein, The support plate is provided with a guide groove extending vertically. The slider passes through the guide groove and is slidably connected to the guide groove. The lifting mechanism includes a pulley, a motor and a belt. The belt extends vertically. The slider is connected to the belt. The pulley supports both ends of the belt and is rotatably connected to the support plate. The motor is mounted on the support plate and is connected to the pulley.

7. The glass cover plate impact resistance testing apparatus of claim 6, wherein, The motor is configured as a servo motor.

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