A grinding steel ball impact resistance testing fixture

Abstract

The utility model belongs to the technical field of grinding steel ball detection, and is particularly a grinding steel ball impact resistance detection fixture, including a base, a clamping table fixedly connected to the top of the base, a placement slot provided on the top of the clamping table, a fixture assembly provided on the clamping table, a mounting frame fixedly connected to the top of the base, and a grinding steel ball impact assembly provided on the mounting frame. The utility model has a reasonable structural design, and the grinding steel ball can be fully clamped and fixed from all sides by synchronizing the four clamping plates to approach each other, thereby improving the stability of the fixation, and the grinding steel ball can be pushed toward the center so that it is aligned with the impact plate up and down to avoid offset and affect the accuracy of the impact resistance detection, and the grinding steel ball can be elastically clamped at the same time, and during the impact resistance detection, the deformation of the grinding steel ball caused by the impact will not be affected, thereby ensuring the accuracy of the impact resistance detection data.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding steel ball detection, in particular to a grinding steel ball impact resistance detection fixture. Background Art

[0002] Grinding steel balls used in metallurgy, mining, building materials, cement, thermal power generation and other industries require not only good corrosion resistance and wear resistance, but also impact toughness. After the grinding steel balls are produced, they need to be tested for impact resistance. During the test, they need to be clamped and fixed with fixtures for testing.

[0003] However, the relevant grinding steel ball impact resistance testing fixture still has some shortcomings when used. Because the grinding steel ball is spherical, it is inconvenient to clamp it comprehensively, and the clamping is prone to loose fixation. When the grinding steel ball is subjected to impact resistance testing, if it is rigidly clamped, it will affect the shape variables of the grinding steel ball and reduce the accuracy of the impact resistance testing. Therefore, we propose a grinding steel ball impact resistance testing fixture to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings and proposes a grinding steel ball anti-impact detection fixture.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A grinding steel ball impact resistance testing fixture comprises a base, the top of the base is fixedly connected to a clamping table, the top of the clamping table is provided with a placement groove, the clamping table is provided with a fixture assembly, the top of the base is fixedly connected to a mounting frame, and the mounting frame is provided with a grinding steel ball impact assembly.

[0007] Preferably, the tooling fixture assembly includes a driving motor fixedly connected to the bottom of the base and threaded rods rotatably connected to the inner side of the clamping table. The ends of the four threaded rods close to each other are fixedly connected to driven bevel gears. A driving shaft is fixedly connected to the output shaft of the driving motor. The top of the driving shaft is fixedly connected to an active bevel gear. The active bevel gear is meshed with four driven bevel gears. A movable plate is threadedly sleeved on the outer sides of the four threaded rods.

[0008] Preferably, the top of the movable plate is fixedly connected to a mounting plate, one side of the mounting plate is fixedly connected to a sleeve, a buffer spring is fixedly connected to an inner wall of one side of the sleeve, one end of the buffer spring is fixedly connected to a slide plate, the inner side of the slide plate is fixedly connected to a connecting rod, and the ends of the four connecting rods close to each other are fixedly connected to a splint.

[0009] Preferably, four rectangular openings are opened on the top of the clamping platform, and four movable plates are slidably mounted in the corresponding rectangular openings respectively.

[0010] Preferably, the four slide plates and the four connecting rods are slidably mounted in corresponding sleeves respectively.

[0011] Preferably, the grinding steel ball impact assembly includes a hydraulic cylinder fixedly connected to the top of the mounting frame, a top plate fixedly connected to the output shaft of the hydraulic cylinder, a vertical spring fixedly connected to the bottom of the top plate, a pressure sensor fixedly connected to the bottom end of the vertical spring, and an impact plate provided on the outer fixed sleeve of the pressure sensor.

[0012] Preferably, a same telescopic rod is fixedly connected between the top plate and the pressure sensor, and the vertical spring is sleeved on the outer side of the telescopic rod.

[0013] Preferably, a same reinforcing plate is fixedly connected between the top inner wall and one side inner wall of the mounting frame.

[0014] In the utility model, the grinding steel ball anti-impact detection fixture is described, the grinding steel ball is placed in the placement groove, and then the driving motor is started, the driving motor drives the rotation of the driving shaft and the active bevel gear, the active bevel gear drives the rotation of four driven bevel gears and the threaded rod, the four threaded rods drive four movable plates, the mounting plate, the connecting rod and the clamping plate to synchronously approach each other, when the clamping plate abuts against the outer side of the grinding steel ball, it continues to start, at this time the buffer spring is compressed, under the rebound force of the buffer spring, the firmness of the clamping and fixing of the grinding steel ball can be further improved, and because the four clamping plates are synchronously approaching each other, the grinding steel ball can be pushed toward the center, so that it is just aligned with the upper and lower impact plates, avoiding deviation and affecting the accuracy of anti-impact detection;

[0015] In the utility model, the described grinding steel ball anti-impact detection fixture is started with a hydraulic cylinder, which drives the top plate and the impact plate to move downward to perform impact detection on the grinding steel ball. The impact force can be measured by setting a pressure sensor, because the impact force that causes the grinding steel ball to deform is relatively large. If the grinding steel ball is deformed, the force on the grinding steel ball is much greater than the squeezing force of the buffer spring on the grinding steel ball, and thus the deformation of the grinding steel ball is not affected, thereby ensuring the accuracy of the anti-impact detection data.

[0016] The utility model has a reasonable structural design. The four clamping plates are synchronously brought close to each other, so the grinding steel ball can be fully clamped and fixed from all sides, which improves the stability of the fixation. The grinding steel ball can be pushed toward the center to be aligned with the impact plate up and down, avoiding deviation and affecting the accuracy of impact resistance detection. At the same time, the grinding steel ball can be elastically clamped, and during the impact resistance detection, the deformation of the grinding steel ball caused by the impact will not be affected, thereby ensuring the accuracy of the impact resistance detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a grinding steel ball impact resistance testing fixture proposed by the utility model;

[0018] Figure 2 A cross-sectional view of a clamping table of a grinding steel ball impact resistance testing fixture proposed by the utility model;

[0019] Figure 3 This is a structural schematic diagram of part A of a grinding steel ball impact resistance testing fixture proposed by the utility model;

[0020] Figure 4 The utility model is a schematic structural diagram of the B part of the grinding steel ball impact resistance testing fixture.

[0021] In the figure: 1. base; 2. mounting frame; 3. clamping table; 4. hydraulic cylinder; 5. moving plate; 6. placement groove; 7. rectangular opening; 8. sleeve; 9. mounting plate; 10. connecting rod; 11. clamping plate; 12. impact plate; 13. pressure sensor; 14. telescopic rod; 15. top plate; 16. vertical spring; 17. driving motor; 18. driving shaft; 19. active bevel gear; 20. driven bevel gear; 21. threaded rod; 22. buffer spring; 23. slide plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-4 A grinding steel ball impact resistance testing fixture comprises a base 1, a clamping platform 3 is fixedly connected to the top of the base 1, a placement groove 6 is opened on the top of the clamping platform 3, a fixture assembly is arranged on the clamping platform 3, a mounting frame 2 is fixedly connected to the top of the base 1, and a grinding steel ball impact assembly is arranged on the mounting frame 2.

[0024] In the utility model, the fixture assembly includes a driving motor 17 fixedly connected to the bottom of the base 1 and threaded rods 21 rotatably connected to the inner side of the clamping table 3. The ends of the four threaded rods 21 close to each other are fixedly connected to the driven bevel gears 20. The output shaft of the driving motor 17 is fixedly connected to the driving shaft 18. The top of the driving shaft 18 is fixedly connected to the active bevel gear 19. The active bevel gear 19 is meshed with the four driven bevel gears 20. The outer sides of the four threaded rods 21 are all threadedly sleeved with a movable plate 5.

[0025] In the utility model, the top of the movable plate 5 is fixedly connected with a mounting plate 9, one side of the mounting plate 9 is fixedly connected with a sleeve 8, a buffer spring 22 is fixedly connected to the inner wall of one side of the sleeve 8, one end of the buffer spring 22 is fixedly connected with a slide plate 23, the inner side of the slide plate 23 is fixedly connected with a connecting rod 10, and the ends of the four connecting rods 10 close to each other are fixedly connected with a clamping plate 11, the grinding steel ball is placed in the placement groove 6, and then the driving motor 17 is started, the driving motor 17 drives the rotation of the driving shaft 18 and the active bevel gear 19, the active bevel gear 19 drives the rotation of the four driven bevel gears 20 and the threaded rod 21, and the four threaded rods 21 drive the four movable plates 5, the mounting plate 6 ... The mounting plate 9, the connecting rod 10 and the clamping plate 11 are synchronously approached to each other. When the clamping plate 11 abuts against the outer sides of the grinding steel ball, it continues to start. At this time, the buffer spring 22 is compressed. Under the rebound force of the buffer spring 22, the firmness of the clamping and fixing of the grinding steel ball can be further improved. Moreover, because the four clamping plates 11 are synchronously approached to each other, the grinding steel ball can be pushed toward the center to be aligned with the impact plate 12 up and down, avoiding deviation and affecting the accuracy of the anti-impact detection. Due to the setting of the buffer spring 22, the purpose of clamping the grinding steel ball can be greatly achieved, and the deformation of the grinding steel ball caused by the impact will not be affected, thereby ensuring the accuracy of the anti-impact detection data.

[0026] In the utility model, four rectangular openings 7 are opened on the top of the clamping platform 3, and the four moving plates 5 are respectively slidably sleeved in the corresponding rectangular openings 7, so as to facilitate the guiding of the moving plates 5 and make their movement more stable.

[0027] In the present invention, the four slide plates 23 and the four connecting rods 10 are respectively slidably sleeved in the corresponding sleeves 8, so as to facilitate the guidance of the slide plates 23 and the connecting rods 10 and make their movement more stable and smooth.

[0028] In the utility model, the grinding steel ball impact assembly includes a hydraulic cylinder 4 fixedly connected to the top of the mounting frame 2, a top plate 15 is fixedly connected to the output shaft of the hydraulic cylinder 4, a vertical spring 16 is fixedly connected to the bottom of the top plate 15, a pressure sensor 13 is fixedly connected to the bottom end of the vertical spring 16, an impact plate 12 is fixedly sleeved on the outer side of the pressure sensor 13, and the hydraulic cylinder 4 is started, and the hydraulic cylinder 4 drives the top plate 15 and the impact plate 12 to move downward to perform impact detection on the grinding steel ball, and the impact force can be measured by setting the pressure sensor 13.

[0029] In the utility model, a telescopic rod 14 is fixedly connected between the top plate 15 and the pressure sensor 13, and the vertical spring 16 is sleeved on the outside of the telescopic rod 14, which is convenient for guiding the pressure sensor 13, the impact plate 12 and the vertical spring 16, making their movement more stable and smooth.

[0030] In the utility model, a reinforcing plate is fixedly connected between the top inner wall and one side inner wall of the mounting frame 2, so as to support and reinforce the top of the mounting frame 2.

[0031] In the utility model, when in use, the grinding steel ball is placed in the placement groove 6, and then the driving motor 17 is started, the driving motor 17 drives the rotation of the driving shaft 18 and the active bevel gear 19, the active bevel gear 19 drives the rotation of the four driven bevel gears 20 and the threaded rod 21, and the four threaded rods 21 drive the four moving plates 5, the mounting plate 9, the connecting rod 10 and the clamping plate 11 to synchronously approach each other. When the clamping plate 11 abuts against the outer side of the grinding steel ball, it continues to start. At this time, the buffer spring 22 is compressed. Under the rebound force of the buffer spring 22, the firmness of the clamping and fixing of the grinding steel ball can be further improved, and due to the four clamping plates 11 The two plates 15 and 12 are moved closer to each other synchronously, so that the grinding steel ball can be pushed toward the center to be aligned with the impact plate 12 up and down, so as to avoid deviation and affect the accuracy of impact resistance detection. Then the hydraulic cylinder 4 is started, and the hydraulic cylinder 4 drives the top plate 15 and the impact plate 12 to move downward to perform impact detection on the grinding steel ball. Through the setting of the pressure sensor 13, the impact force can be measured. Because the impact force that causes the deformation of the grinding steel ball is relatively large, if the grinding steel ball is deformed, the force exerted on the deformation of the grinding steel ball is much greater than the squeezing force exerted on the grinding steel ball by the buffer spring 22, so as not to affect the deformation of the grinding steel ball, thereby ensuring the accuracy of the data of impact resistance detection.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grinding steel ball impact resistance testing fixture, characterized in that: The invention comprises a base (1), the top of the base (1) is fixedly connected to a clamping platform (3), the top of the clamping platform (3) is provided with a placement groove (6), the clamping platform (3) is provided with a tooling fixture assembly, the top of the base (1) is fixedly connected to a mounting frame (2), and the mounting frame (2) is provided with a grinding steel ball impact assembly.

2. The grinding steel ball impact resistance testing fixture according to claim 1 is characterized in that: The fixture assembly comprises a driving motor (17) fixedly connected to the bottom of the base (1) and threaded rods (21) rotatably connected to the inner periphery of the clamping platform (3); the ends of the four threaded rods (21) close to each other are fixedly connected to driven bevel gears (20); the output shaft of the driving motor (17) is fixedly connected to a driving shaft (18); the top end of the driving shaft (18) is fixedly connected to an active bevel gear (19); the active bevel gear (19) is meshed with the four driven bevel gears (20); and the outer sides of the four threaded rods (21) are threadedly sleeved with movable plates (5).

3. The grinding steel ball impact resistance testing fixture according to claim 2 is characterized in that: The top of the movable plate (5) is fixedly connected to a mounting plate (9), one side of the mounting plate (9) is fixedly connected to a sleeve (8), one side inner wall of the sleeve (8) is fixedly connected to a buffer spring (22), one end of the buffer spring (22) is fixedly connected to a slide plate (23), the inner side of the slide plate (23) is fixedly connected to a connecting rod (10), and the ends of the four connecting rods (10) that are close to each other are fixedly connected to a clamping plate (11).

4. The grinding steel ball impact resistance testing fixture according to claim 2 is characterized in that: The top of the clamping platform (3) is provided with four rectangular openings (7), and the four movable plates (5) are respectively slidably sleeved in the corresponding rectangular openings (7).

5. The grinding steel ball impact resistance testing fixture according to claim 3 is characterized in that: The four slide plates (23) and the four connecting rods (10) are respectively slidably sleeved in the corresponding sleeves (8).

6. The grinding steel ball impact resistance testing fixture according to claim 1 is characterized in that: The grinding steel ball impact assembly comprises a hydraulic cylinder (4) fixedly connected to the top of the mounting frame (2); a top plate (15) is fixedly connected to the output shaft of the hydraulic cylinder (4); a vertical spring (16) is fixedly connected to the bottom of the top plate (15); a pressure sensor (13) is fixedly connected to the bottom end of the vertical spring (16); and an impact plate (12) is fixedly sleeved on the outside of the pressure sensor (13).

7. The grinding steel ball impact resistance testing fixture according to claim 6 is characterized in that: A same telescopic rod (14) is fixedly connected between the top plate (15) and the pressure sensor (13), and the vertical spring (16) is sleeved on the outer side of the telescopic rod (14).

8. The grinding steel ball impact resistance testing fixture according to claim 1 is characterized in that: A reinforcing plate is fixedly connected between the top inner wall and one side inner wall of the mounting frame (2).

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