Ceramic ball hardness detection device

Abstract

The utility model relates to the technical field of hardness detection devices, and discloses a ceramic ball hardness detection device which comprises a detection supporting table, bottom supporting legs are evenly arranged on the periphery of the bottom end of the detection supporting table, a fixing support is arranged at the top end of the detection supporting table, and an air cylinder installation groove is formed in the end of the fixing support. The bottom end of the driving push rod is provided with a hardness detection abutting head, and the detection supporting table is provided with a ceramic ball fastening assembly used for clamping and fixing to-be-detected ceramic balls with different diameters. A fastening push plate in the ceramic ball fastening assembly can enable the two sides of the top end of a ceramic ball placed in a ceramic ball embedding groove to be extruded and fixed under the rotation of a fastening screw rod by a user, and due to the adjustability of the fastening push plate, even if ceramic balls with different specifications and sizes are placed in the ceramic ball embedding groove, the ceramic balls can be clamped and fixed.

Description

Technical Field

[0001] This utility model relates to the technical field of hardness testing devices, specifically a ceramic ball hardness testing device. Background Technology

[0002] Currently, testing the hardness of ceramic balls is very important. Generally, hardness testing devices use probes to press the object being tested onto a flat surface to obtain hardness data. However, ceramic balls are spherical in shape and have high hardness, making it impossible to press them onto a flat surface for stable hardness testing.

[0003] A search revealed a Chinese patent publication number, CN 216013027 U, which discloses a hardness testing device for wear-resistant balls. The device includes: a stage, a first lifting mechanism, a second lifting mechanism, a pressing mechanism, a hardness tester body, a mounting plate, and a base. The first lifting mechanism is mounted on the base, and the mounting plate is mounted on the first lifting mechanism. The second lifting mechanism is located at the bottom of the mounting plate, and the hardness tester body is mounted on the second lifting mechanism. The stage is mounted on the base and located below the mounting plate. A spherical positioning groove matching the wear-resistant ball to be tested is formed at the top of the stage corresponding to the pressure head of the hardness tester body. The pressing mechanism includes a fixing ring and multiple sets of elastic connecting components. The fixing ring is coaxially arranged below the pressure head, and its inner diameter is smaller than the diameter of the wear-resistant ball to be tested. The multiple sets of elastic connecting components are evenly distributed along the circumference of the fixing ring, and each set of elastic connecting components is connected between the fixing ring and the mounting plate. This invention can effectively fix the wear-resistant ball, effectively ensuring measurement accuracy.

[0004] The wear-resistant ball hardness testing device in the aforementioned patent still has certain shortcomings. In actual use, the existing wear-resistant ball hardness testing device has a fixed ball groove on its extrusion base. As a result, when users need to perform hardness testing on ceramic balls of different sizes, it is difficult to adapt to different sizes of ceramic balls and cannot stably fix ceramic balls of various specifications and sizes, thus causing inconvenience to the hardness testing of ceramic balls. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a ceramic ball hardness testing device. This solves the problem that existing ceramic ball hardness testing devices, due to the fixed size of the ball groove on the extrusion base, are difficult to adapt to different sizes of ceramic balls when users need to perform hardness testing on different ceramic balls. They cannot stably fix ceramic balls of various sizes, thus causing inconvenience in ceramic ball hardness testing.

[0006] This utility model provides the following technical solution: a ceramic ball hardness testing device, including a testing support platform, bottom legs evenly arranged around the bottom of the testing support platform, a fixed bracket at the top of the testing support platform, a cylinder mounting groove at the end of the fixed bracket, a driving cylinder mounted on the cylinder mounting groove, and two symmetrically arranged fastening bolts fixing the driving cylinder to both sides of the cylinder mounting groove, a driving push rod connected to the driving end of the driving cylinder, a hardness testing contact head at the bottom end of the driving push rod, and a ceramic ball fastening assembly for clamping and fixing ceramic balls of different diameters on the testing support platform;

[0007] The ceramic ball fastening assembly includes a ceramic ball placement seat fixedly mounted on the top of the testing support platform. A top placement groove is provided in the middle of the top of the ceramic ball placement seat. A ceramic ball embedding groove is provided in the bottom wall of the top placement groove. Two side movable grooves are symmetrically provided on both sides of the top placement groove. A fastening push plate is provided in each side movable groove. A fastening screw is rotatably inserted into the inner wall of the side movable groove. The end of the fastening screw is rotatably connected to the side of the fastening push plate through a rotatably mounted rotating connecting block.

[0008] Preferred technical solution 1: Two anti-splash baffles are symmetrically slidably embedded on both sides of the ceramic ball placement seat; four push-insertion holes are evenly opened on the detection support platform; a drive motor is provided in the middle of the bottom end of the detection support platform; a lifting screw is provided at the bottom end of the drive motor; a lifting sleeve is sleeved on the lifting screw; and a bottom push plate is provided at the bottom of the detection support platform.

[0009] Preferred technical solution 2: The middle part of the lifting screw passes through the middle part of the bottom push plate, and the bottom push plate and the lifting screw sleeve are fixedly connected by a number of fixed connecting columns. Limiting push rods are evenly arranged around the top of the bottom push plate, and the top of each limiting push rod passes through the push insertion hole and is fixedly connected to the bottom end of the anti-splash baffle.

[0010] Preferred technical solution three: The ceramic ball embedding groove is semi-circular arc-shaped.

[0011] Preferred technical solution four: The ceramic ball embedding groove is located directly below the hardness detection contact head.

[0012] Preferred technical solution five: The end of the fastening screw is provided with a handle for easy rotation.

[0013] Preferred technical solution six: The side of the fastening push plate is in a curved arc shape that facilitates contact.

[0014] Preferred technical solution seven: The push-insertion holes are evenly distributed on the sides around the ceramic ball placement base.

[0015] This design enables the limiting push rod, driven by the drive motor, to push upwards the two splash-proof baffles that are slidably embedded on the side of the ceramic ball placement seat.

[0016] Preferred technical solution eight: A baffle is provided at the bottom end of the lifting screw.

[0017] This solution effectively prevents the lifting screw sleeve from falling off when the lifting screw moves upward.

[0018] Preferred technical solution nine: The bottom push plate has a through hole in the middle, and the lifting screw passes through the middle of the through hole.

[0019] This solution enables the lifting screw to drive the lifting sleeve to better move the bottom push plate upward.

[0020] Compared with the prior art, this utility model provides a ceramic ball hardness testing device, which has the following beneficial effects:

[0021] (1) This utility model provides a ceramic ball fastening assembly on the testing support platform. The fastening push plate in the ceramic ball fastening assembly can compress and fix the top two sides of the ceramic ball placed in the ceramic ball embedding groove under the rotation of the fastening screw by the user. Due to the adjustability of the fastening push plate, ceramic balls of different sizes can be clamped and fixed even when placed in the ceramic ball embedding groove. The anti-splash baffle set on the outside of the ceramic ball placement seat can be driven by the drive motor to the lifting screw, so that the lifting screw pushes the limit push rod through the bottom push plate, pushing the anti-splash baffle set on the side of the ceramic ball placement seat upward. This can protect the side of the ceramic ball during hardness testing and ensure the safety of the operator. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 For the present utility model Figure 1 Enlarged view of the structure with the slot placed at the top center;

[0024] Figure 3 This is a schematic diagram of the bottom of the structure of this utility model;

[0025] Figure 4 For the present utility model Figure 3 Enlarged view of the structure of the lifting screw.

[0026] In the diagram: 1. Testing support platform; 2. Bottom support leg; 3. Fixed bracket; 4. Cylinder mounting slot; 5. Drive cylinder; 6. Fastening bolt; 7. Drive push rod; 8. Hardness testing contact head; 9. Ceramic ball fastening assembly; 901. Ceramic ball placement seat; 902. Top placement slot; 903. Ceramic ball embedding slot; 904. Side movable slot; 905. Fastening push plate; 906. Fastening screw; 907. Rotating connecting block; 908. Anti-splash baffle; 909. Push insertion hole; 910. Drive motor; 911. Lifting screw; 912. Lifting screw sleeve; 913. Bottom push plate; 914. Fixed connecting column; 915. Limiting push rod. Detailed Implementation

[0027] Please see Figure 1-4 ,

[0028] Example 1: A ceramic ball hardness testing device includes a testing support platform 1. Bottom support legs 2 are evenly arranged around the bottom of the testing support platform 1. A fixed bracket 3 is provided at the top of the testing support platform 1. A cylinder mounting groove 4 is opened at the end of the fixed bracket 3. A drive cylinder 5 is installed on the cylinder mounting groove 4. The two sides of the cylinder mounting groove 4 are fixed to the drive cylinder 5 by two symmetrically arranged fastening bolts 6. The drive end of the drive cylinder 5 is connected to a drive push rod 7. A hardness testing contact head 8 is provided at the bottom end of the drive push rod 7. A ceramic ball fastening assembly 9 for clamping and fixing ceramic balls of different diameters is provided on the testing support platform 1.

[0029] The ceramic ball fastening assembly 9 includes a ceramic ball placement seat 901 fixedly mounted on the top of the testing support platform 1. A top placement groove 902 is provided in the middle of the top of the ceramic ball placement seat 901. A ceramic ball embedding groove 903 is provided on the bottom wall of the top placement groove 902. Two side movable grooves 904 are symmetrically provided on both sides of the top placement groove 902. A fastening push plate 905 is provided in each side movable groove 904. A fastening screw 906 is rotatably inserted into the inner wall of the side movable groove 904. The end of the fastening screw 906 is rotatably connected to the side of the fastening push plate 905 through a rotatably provided rotating connecting block 907. Two anti-splash baffles 908 are symmetrically slidably embedded on both sides of the ceramic ball placement seat 901.

[0030] Four push-in holes 909 are evenly provided on the testing support platform 1. A drive motor 910 is provided in the middle of the bottom end of the testing support platform 1. A lifting screw 911 is provided at the bottom end of the drive motor 910. A lifting sleeve 912 is fitted on the lifting screw 911. A bottom push plate 913 is provided at the bottom of the testing support platform 1. The middle of the lifting screw 911 passes through the middle of the bottom push plate 913. The bottom push plate 913 and the lifting sleeve 912 are fixedly connected by several fixed connecting posts 914. Limiting push rods 915 are evenly provided around the top of the bottom push plate 913. The top of each limiting push rod 915 passes through the push-in hole 909 and is fixedly connected to the bottom end of the anti-splash baffle 908.

[0031] The ceramic ball is embedded in the groove 903 in a semi-circular arc shape.

[0032] The ceramic ball embedding groove 903 is located directly below the hardness testing contact head 8.

[0033] The end of the fastening screw 906 is provided with a handle for easy rotation.

[0034] The side of the fastening push plate 905 is in a curved arc shape to facilitate contact.

[0035] Example 2: The difference between this example and Example 1 is that the push-insertion holes 909 are evenly distributed on the sides around the ceramic ball placement seat 901.

[0036] This allows the limiting push rod 915, driven by the drive motor 910, to push the two splash guards 908 that are slidably embedded on the side of the ceramic ball placement seat 901 upwards.

[0037] Example 3: The difference between this example and Example 1 is that a baffle is provided at the bottom end of the lifting screw 911.

[0038] This effectively prevents the lifting screw sleeve 912 from falling off when the lifting screw 911 moves upward. Example 4: The difference between this example and Example 1 is that a through hole is provided in the middle of the bottom push plate 913, and the lifting screw 911 passes through the middle of the through hole.

[0039] This allows the lifting screw 911 to drive the lifting sleeve 912 to better move the bottom push plate 913 upward.

[0040] In this embodiment, because the existing ceramic ball hardness testing device has a fixed size ball groove on its extrusion base, it is difficult to adapt to different sizes of ceramic balls when the user needs to perform hardness testing on ceramic balls of different sizes. It cannot stably fix ceramic balls of various sizes, which brings inconvenience to the hardness testing of ceramic balls.

[0041] In summary, in practical implementation, when a user needs to test the hardness of ceramic balls of different sizes, the user can first place the ceramic ball to be tested into the ceramic ball embedding groove 903. Then, the user can tighten the fastening screw 906 so that the fastening screw 906 can push the fastening push plate 905 to abut against the two sides of the top of the ceramic ball. Since the fastening push plate 905 can be pushed in the side movable groove 904, ceramic balls of different sizes placed in the ceramic ball embedding groove 903 can be abutted and fixed, so that the fixed and clamped ceramic ball can be pressed and squeezed by the hardness testing contact head 8.

[0042] Furthermore, by symmetrically sliding and embedding two anti-splash baffles 908 on both sides of the ceramic ball placement seat 901, before the fixed ceramic ball is squeezed, the user can start the drive motor 910, so that the drive motor 910 can drive the lifting sleeve 912 sleeved on the lifting screw 911 to move upward. Since the lifting sleeve 912 is fixedly connected to the bottom push plate 913 by the fixed connecting post 914, and the bottom push plate 913 is uniformly provided with limit push rods 915 around the top of the bottom push plate 913, and the top of the limit push rod 915 passes through the push insertion hole 909 and is fixedly connected to the bottom end of the anti-splash baffle 908, the bottom push plate 913 can be limited, so that the lifting sleeve 912 will not rotate with the rotation of the lifting screw 911, so that the lifting sleeve 912 can move upward on the lifting screw 911, and at the same time drive the bottom push plate 913 to push upward.

[0043] This allows the limiting push rod 915 on the bottom push plate 913 to push the anti-splash baffle 908, which in turn blocks the side of the ceramic ball placement seat 901. This prevents the hardness testing contact head 8 from being driven by the drive cylinder 5 to the drive push rod 7. Even if the compressed ceramic ball breaks due to excessive pressure, the anti-splash baffle 908 can prevent the fragments from injuring the operator, ensuring greater safety during ceramic ball hardness testing. At the same time, it can also be adapted to the testing of ceramic balls of different sizes, making it more convenient and flexible for users.

Claims

1. A ceramic ball hardness testing device, comprising a testing support platform (1), characterized in that: Bottom support legs (2) are evenly arranged around the bottom of the testing support platform (1). A fixed bracket (3) is provided at the top of the testing support platform (1). A cylinder mounting groove (4) is opened at the end of the fixed bracket (3). A drive cylinder (5) is installed on the cylinder mounting groove (4). The two sides of the cylinder mounting groove (4) are fixed to the drive cylinder (5) by two symmetrically arranged fastening bolts (6). A drive push rod (7) is connected to the drive end of the drive cylinder (5). A hardness detection contact head (8) is provided at the bottom end of the drive push rod (7). A ceramic ball fastening assembly (9) for clamping and fixing ceramic balls of different diameters is provided on the testing support platform (1). The ceramic ball fastening assembly (9) includes a ceramic ball placement seat (901) fixedly installed at the top of the detection support platform (1). A top placement groove (902) is provided in the middle of the top of the ceramic ball placement seat (901). A ceramic ball embedding groove (903) is provided on the bottom wall of the top placement groove (902). Two side movable grooves (904) are symmetrically opened on both sides of the top placement groove (902). A fastening push plate (905) is provided in each of the side movable grooves (904). A fastening screw (906) is rotatably inserted into the inner wall of the side movable groove (904). The end of the fastening screw (906) is rotatably connected to the side of the fastening push plate (905) through a rotatably installed rotating connecting block (907).

2. The ceramic ball hardness testing device according to claim 1, characterized in that: Two anti-splash baffles (908) are symmetrically slidably embedded on both sides of the ceramic ball placement seat (901). Four push-insertion holes (909) are evenly opened on the detection support platform (1). A drive motor (910) is provided in the middle of the bottom end of the detection support platform (1). A lifting screw (911) is provided at the bottom end of the drive motor (910). A lifting screw sleeve (912) is sleeved on the lifting screw (911). A bottom push plate (913) is provided at the bottom of the detection support platform (1).

3. The ceramic ball hardness testing device according to claim 2, characterized in that: The middle part of the lifting screw (911) passes through the middle part of the bottom push plate (913). The bottom push plate (913) and the lifting screw sleeve (912) are fixedly connected by a number of fixed connecting posts (914). Limiting push rods (915) are evenly arranged around the top of the bottom push plate (913). The top of each limiting push rod (915) passes through the push insertion hole (909) and is fixedly connected to the bottom of the splash guard (908).

4. The ceramic ball hardness testing device according to claim 3, characterized in that: The ceramic ball embedding groove (903) is semi-circular arc-shaped.

5. The ceramic ball hardness testing device according to claim 4, characterized in that: The ceramic ball embedding groove (903) is located directly below the hardness detection contact head (8).

6. The ceramic ball hardness testing device according to claim 5, characterized in that: The end of the fastening screw (906) is provided with a handle for easy rotation.

7. The ceramic ball hardness testing device according to claim 6, characterized in that: The side of the fastening push plate (905) is in a curved arc shape to facilitate contact.

8. The ceramic ball hardness testing device according to claim 7, characterized in that: The push-in holes (909) are evenly distributed around the sides of the ceramic ball holder (901).

9. The ceramic ball hardness testing device according to claim 8, characterized in that: A baffle is provided at the bottom end of the lifting screw (911).

10. A ceramic ball hardness testing device according to claim 9, characterized in that: The bottom push plate (913) has a through hole in the middle, and the lifting screw (911) passes through the middle of the through hole.

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