Height-adjustable high-precision steel ball impact test device

Abstract

The utility model belongs to the technical field of high-precision steel ball processing, and discloses a height-adjustable high-precision steel ball impact testing device, which comprises a bottom box, a ball falling structure and a ball receiving structure, and is characterized in that the bottom box is arranged on a bracket, a fixed frame is arranged on the bottom box, a driving structure is arranged in the fixed frame, and the driving structure is arranged on the bracket. The ball falling structure is movably connected with the driving structure, and the ball receiving structure is movably arranged in the bottom box. According to the utility model, high-precision steel balls to be subjected to an impact test are respectively placed in the ball falling cylinders, the blocking structures can play a role in blocking the steel balls to prevent the steel balls from directly falling from the ball falling cylinders, and on the other hand, the blocking structures can enable the high-precision steel balls in the plurality of ball falling cylinders to fall at the same time to prevent the steel balls from directly falling from the ball falling cylinders. And the same test condition is provided for the impact test of the high-precision steel ball, so that the accuracy of the test result is improved.

Description

Technical Field

[0001] This utility model relates to the field of high-precision steel ball processing technology, specifically a height-adjustable high-precision steel ball impact testing device. Background Technology

[0002] Before the processed steel balls leave the factory, they need to undergo strength testing to ensure quality. To improve their performance, impact testing is often performed to detect changes in the steel balls after impact. For example, patent application number 202220860447.6 discloses a steel ball impact strength testing machine, which solves the technical problem of excessive machine height. However, it has drawbacks such as the inability to adjust the impact height of the steel balls, the inability to perform impact tests on multiple steel balls simultaneously, and poor accuracy of the test results.

[0003] To address this, we propose a highly adjustable, high-precision steel ball impact testing device. Utility Model Content

[0004] The purpose of this invention is to overcome the problems of existing steel ball impact testing devices, such as the inability to adjust the impact height of the steel ball, the inability to conduct impact tests on multiple steel balls simultaneously, and the poor accuracy of the test results. The invention provides a high-precision steel ball impact testing device with adjustable height, reasonable structural design, adjustable impact height, the ability to conduct impact tests on multiple steel balls simultaneously, and high accuracy of the test results.

[0005] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0006] A height-adjustable high-precision steel ball impact testing device includes a base box, a ball dropping structure, and a ball receiving structure. The base box is mounted on a support, a fixed frame is mounted on the base box, and a drive structure is mounted inside the fixed frame. The ball dropping structure is movably connected to the drive structure, and the ball receiving structure is movably mounted inside the base box.

[0007] Preferably, the drive structure includes a dual-axis motor, a connecting screw ring, and a push rod. The dual-axis motor is equipped with a servo motor. A bearing is installed on the inner wall of the top of the fixed frame. The dual-axis motor is located at the top of the fixed frame. Rotating studs are installed on both sides of the dual-axis motor. The connecting screw ring is sleeved on the rotating studs on both sides of the dual-axis motor. An upper fixed plate is installed at the bottom of the connecting screw ring. Pins are installed at both ends of the push rod. The pin at the top of the push rod is connected to the upper fixed plate, and the pin at the bottom of the push rod is movably connected to the ball-dropping structure. The dual-axis motor drives the rotating studs to rotate forward or backward. The rotating studs push the connecting screw ring to move back and forth along the rotating studs. The connecting screw ring drives one end of the push rod to move via the pins, causing the other end of the push rod to raise or lower the feeding plate, adjusting the height of the ball-dropping cylinder. This allows high-precision steel balls to be dropped from different heights for impact testing, enriching the impact testing methods for steel balls.

[0008] Preferably, the ball-dropping structure includes a feeding plate and a ball-dropping cylinder. The feeding plate has a lower fixing plate at its top, and an inner cavity is provided inside the lower fixing plate. The lower fixing plate is connected to a pin at the bottom of the push rod. The ball-dropping cylinder passes vertically through the feeding plate, and a blocking structure is provided in the inner cavity to prevent the steel balls from falling. High-precision steel balls that need to be impact tested are placed in the ball-dropping cylinder. The blocking structure can, on the one hand, block the steel balls, preventing them from falling directly from the ball-dropping cylinder. On the other hand, the blocking structure can drop high-precision steel balls from multiple ball-dropping cylinders at the same time, providing the same test conditions for the impact test of high-precision steel balls, thereby improving the accuracy of the test results.

[0009] Preferably, the blocking structure includes a pull rod and a baffle. The baffle is mounted on the pull rod and corresponds one-to-one with the ball drop cylinders on the feed plate. Both ends of the pull rod extend out of the inner cavity, and limit plates are provided at both ends of the pull rod. A spring is sleeved on the pull rod between the limit plates and the side wall of the feed plate. The baffle is inserted into the ball drop cylinder in the inner cavity. The high-precision steel balls to be impact tested are placed on the baffle in the ball drop cylinder. Pulling the pull rod causes the pull rod to move the baffle, and multiple high-precision steel balls fall from the corresponding ball drop cylinders for impact testing. The spring between the limit plates and the side wall of the feed plate causes the pulled rod to quickly return to its original position, thereby causing the baffle to quickly move into the ball drop cylinder to block the steel balls.

[0010] Preferably, the ball drop tube in the inner cavity is provided with through slots on both sides for the baffle to pass through or move out, so that the baffle can be moved out of or into the ball drop tube.

[0011] Preferably, the ball-receiving structure includes an adjusting plate and an impact plate. An adjusting structure is provided on the base box. The adjusting plate is movably placed inside the base box and movably connected to the adjusting structure. The impact plate is movably placed on the adjusting plate. The position of the adjusting plate can be adjusted by the adjusting structure, thereby adjusting the position of the impact plate so that it moves directly below the ball-dropping tube. This facilitates the impact of the high-precision steel ball inside the ball-dropping tube on the impact plate. Placing the impact plate on the adjusting plate facilitates replacement. To improve the stability of the impact plate during the impact of the high-precision steel ball, a fixing groove for placing the impact plate can be provided on the adjusting plate. Placing the impact plate in the fixing groove prevents it from sliding during the impact of the high-precision steel ball, thereby improving the accuracy of the high-precision steel ball impact test results.

[0012] Preferably, the bottom box is provided with a horizontal crossbar, and the adjustment plate is provided with a connecting cylinder. The crossbar passes through the connecting cylinder, so that the adjustment plate is configured to be able to adjust its position along the crossbar. The crossbar can limit the adjustment plate as it moves back and forth, preventing the adjustment plate from swaying laterally during the adjustment process, and allowing the impact plate on the adjustment plate to move quickly to the bottom of the discharge cylinder.

[0013] Preferably, the adjustment structure includes an adjusting screw and a connecting ring. A fixing ring is provided on the base box, and the adjusting screw passes through the fixing ring. A locking block is provided on one end of the adjusting screw inside the base box, and a handle is provided on the adjusting screw outside the base box. A connecting ring is provided on the outer wall of the adjusting plate, and a slot is provided in the connecting ring. The locking block is inserted into the slot. The impact plate is placed on the adjusting plate, and the handle is turned to rotate the adjusting screw. The adjusting screw moves within the fixing ring, and the locking block on the adjusting screw rotates in the slot within the connecting ring, pushing the connecting ring and the adjusting plate to move. This allows the adjusting plate to move the impact plate directly below the ball drop tube, facilitating impact testing of high-precision steel balls.

[0014] Beneficial effects:

[0015] 1. Connect the pin at the top of the push rod to the upper fixed plate, and connect the pin at the bottom of the push rod to the ball dropping structure. The dual-axis motor drives the rotating stud to rotate forward or backward. The rotating stud pushes the connecting screw ring to move back and forth along the rotating stud. The connecting screw ring drives one end of the push rod to move through the pin, so that the other end of the push rod drives the material plate to rise or fall, thereby adjusting the height of the ball dropping cylinder. This allows high-precision steel balls to be dropped from different heights for impact testing, enriching the impact testing methods for steel balls.

[0016] 2. Place the high-precision steel balls that need to be impact tested into the ball drop tubes. The blocking structure can both prevent the steel balls from falling directly from the ball drop tubes and allow the high-precision steel balls from multiple ball drop tubes to fall simultaneously, providing the same test conditions for the impact test of the high-precision steel balls, thereby improving the accuracy of the test results.

[0017] 3. Place the impact plate on the adjusting plate, turn the handle, turn the adjusting screw, the adjusting screw moves in the fixed screw ring, the locking block on the adjusting screw rotates in the slot in the connecting ring, pushing the connecting ring and the adjusting plate to move, so that the adjusting plate moves the impact plate directly below the ball drop tube, which is convenient for impact testing of high precision steel balls. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a partial structural diagram of the present invention, illustrating the connection structure between the base box and the adjustment plate.

[0020] Figure 3 This is a partial structural diagram of the present invention, illustrating the connection structure between the connecting screw ring and the feed plate.

[0021] Figure 4 This is a partial structural diagram of the present invention, illustrating the connection structure between the feeding plate and the ball drop cylinder.

[0022] Figure 5 This is a partial structural diagram of the present invention, illustrating the connection structure between the ball drop tube and the baffle.

[0023] Figure 6 This is a partial structural schematic diagram of the present invention, illustrating... Figure 2 A schematic diagram of the structure at point A in the middle.

[0024] Figure 7 This is a schematic diagram of another embodiment of the present invention.

[0025] In the diagram: 1. Base box, 2. Bracket, 3. Fixing frame, 4. Fixing screw ring, 5. Crossbar, 6. Bearing, 7. Adjusting plate, 8. Impact plate, 9. Adjusting screw, 10. Connecting cylinder, 11. Connecting ring, 12. Slot, 13. Handle, 14. Locking block, 15. Dual-axis motor, 16. Connecting screw ring, 17. Push rod, 18. Rotating stud, 19. Upper fixing plate, 20. Pin, 21. Feeding plate, 22. Ball drop cylinder, 23. Lower fixing plate, 24. Inner cavity, 25. Pull rod, 26. Baffle, 27. Limiting plate, 28. Spring, 29. Through groove, 30. Ball drop chamber. Detailed Implementation

[0026] The present invention will now be described in more detail with reference to the accompanying drawings.

[0027] Example 1:

[0028] As attached Figure 1-6 As shown, the height-adjustable high-precision steel ball impact testing device includes a base box 1, a ball dropping structure, and a ball receiving structure. The base box 1 is mounted on a support 2, and a fixed frame 3 is mounted on the base box 1. A drive structure is mounted inside the fixed frame 3. The ball dropping structure is movably connected to the drive structure, and the ball receiving structure is movably mounted inside the base box 1.

[0029] The drive structure includes a dual-axis motor 15, a connecting screw ring 16, and a push rod 17. The dual-axis motor 15 is equipped with a servo motor. A bearing 6 is provided on the inner wall of the top of the fixed frame 3. The dual-axis motor 15 is located at the top of the fixed frame 3. Rotating studs 18 are provided on both sides of the dual-axis motor 15. The connecting screw ring 16 is sleeved on the rotating studs 18 on both sides of the dual-axis motor 15. An upper fixing plate 19 is provided at the bottom of the connecting screw ring 16. Pins 20 are provided at both ends of the push rod 17. The pins 20 at the top of the push rod 17 are connected to the upper fixing plate 19, and the pins 20 at the bottom of the push rod 17 are movably connected to the ball dropping structure.

[0030] The ball-dropping structure includes a feeding plate 21 and a ball-dropping cylinder 22. A lower fixing plate 23 is provided on the top of the feeding plate 21, and an inner cavity 24 is provided inside the lower fixing plate 23. The lower fixing plate 23 is connected to the pin 20 at the bottom of the push rod 17. The ball-dropping cylinder 22 passes vertically through the feeding plate 21, and a blocking structure that can prevent the steel ball from falling is provided in the inner cavity 24.

[0031] The blocking structure includes a pull rod 25 and a baffle 26. The baffle 26 is mounted on the pull rod 25 and corresponds one-to-one with the ball drop cylinders 22 on the feed plate 21. Both ends of the pull rod 25 extend out of the inner cavity 24. Limiting plates 27 are provided at both ends of the pull rod 25, and springs 28 are sleeved on the pull rod 25 between the limiting plates 27 and the side wall of the feed plate 21. The baffle 26 is inserted into the ball drop cylinders 22 in the inner cavity 24. The ball drop cylinders 22 in the inner cavity 24 have through slots 29 on both sides for the baffle 26 to enter or move out.

[0032] The ball-receiving structure includes an adjusting plate 7 and an impact plate 8. An adjusting structure is provided on the bottom box 1. The adjusting plate 7 is movably placed inside the bottom box 1 and is movably connected to the adjusting structure. The impact plate 8 is movably placed on the adjusting plate 7. A horizontal crossbar 5 is provided inside the bottom box 1. A connecting cylinder 10 is provided on the adjusting plate 7. The crossbar 5 is passed through the connecting cylinder 10, so that the adjusting plate 7 is configured to be able to adjust its position along the crossbar 5.

[0033] The adjustment structure includes an adjusting screw 9 and a connecting ring 11. A fixing ring 4 is provided on the same base box 1. The adjusting screw 9 passes through the fixing ring 4. A locking block 14 is provided on one end of the adjusting screw 9 inside the base box 1. A handle 13 is provided on the adjusting screw 9 outside the base box 1. A connecting ring 11 is provided on the outer wall of the adjusting plate 7. A slot 12 is provided in the connecting ring 11, and the locking block 14 is inserted into the slot 12.

[0034] Example 2:

[0035] This embodiment is a further description based on Embodiment 1, as shown in the appendix. Figure 7 As shown: A height-adjustable high-precision steel ball impact testing device includes a base box 1, a ball dropping structure, and a ball receiving structure. The base box 1 is mounted on a support 2, and a fixed frame 3 is mounted on the base box 1. A drive structure is installed inside the fixed frame 3. The ball dropping structure is movably connected to the drive structure. The ball receiving structure is movably mounted inside the base box 1. A ball dropping chamber 30 is installed at the bottom of the base box 1. After the impact test is completed, the high-precision steel ball falls into the ball dropping chamber 30, which facilitates the recovery of the high-precision steel ball after the impact test and reduces the loss of the high-precision steel ball.

[0036] Working principle: Select a ball drop cylinder 22 with an inner diameter larger than the diameter of the high-precision steel ball to be used for the impact test. Place the impact plate 8 on the adjusting plate 7. Turn the handle 13 to rotate the adjusting screw 9. The adjusting screw 9 moves within the fixed screw ring 4. The locking block 14 on the adjusting screw 9 rotates in the slot 12 within the connecting ring 11, pushing the connecting ring 11 and the adjusting plate 7 to move. This causes the adjusting plate 7 to move the impact plate 8 directly below the ball drop cylinder 22. Place the high-precision steel balls to be tested into the ball drop cylinder 22. Start the dual-axis motor 15. The dual-axis motor 15 drives the rotating stud 18 to rotate. The rotating stud 18 pushes the connecting screw ring 16 back and forth along the rotating stud 18. The connecting screw ring 16 drives one end of the push rod 17 to move through the pin 20, causing the other end of the push rod 17 to move. The feeding plate 21 is raised or lowered to adjust the height of the ball drop cylinder 22. After the bottom height of the ball drop cylinder 22 is adjusted to a suitable position, the pull rod 25 is pulled, causing the baffle 26 on the pull rod 25 to move out of the through groove 29 on the corresponding ball drop cylinder 22. The steel balls in the ball drop cylinder 22 fall onto the impact plate 8 under the action of gravity, producing impact marks on the impact plate 8. By comparing the impact marks, high-precision steel balls with high impact strength can be screened out. In order to conduct impact tests on different high-precision steel balls, multiple different high-precision steel balls can be impact tested under the same height and the same impact plate 8. The same high-precision steel balls can also be impact tested under the same height and different impact plates 8, which enriches the impact testing methods of high-precision steel balls and improves the accuracy of impact test results.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0038] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] The parts not covered in this utility model are the same as or can be implemented using existing technologies.

Claims

1. A height-adjustable high-precision steel ball impact testing device, comprising a base box, a ball dropping structure, and a ball receiving structure, characterized in that: The base box is mounted on a support, a fixed frame is mounted on the base box, and a drive structure is mounted inside the fixed frame. The ball-dropping structure is movably connected to the drive structure, and the ball-catching structure is movably mounted inside the base box. The drive structure includes a dual-axis motor, a connecting screw ring, and a push rod. The dual-axis motor is equipped with a servo motor. A bearing is mounted on the inner top wall of the fixed frame. The dual-axis motor is mounted at the top of the fixed frame, and rotating studs are mounted on both sides of the dual-axis motor. The connecting screw ring is fitted onto the rotating studs on both sides of the dual-axis motor. An upper fixed plate is mounted at the bottom of the connecting screw ring. Pins are mounted at both ends of the push rod. The pin at the top end of the push rod is connected to the upper fixed plate, and the pin at the bottom end of the push rod is movably connected to the ball-dropping structure.

2. The height-adjustable high-precision steel ball impact testing device according to claim 1, characterized in that: The ball-dropping structure includes a feeding plate and a ball-dropping cylinder. A lower fixing plate is provided on the top of the feeding plate, and an inner cavity is provided inside the lower fixing plate. The lower fixing plate is connected to the pin at the bottom of the push rod. The ball-dropping cylinder passes vertically through the feeding plate, and a blocking structure is provided in the inner cavity to prevent the steel ball from falling.

3. The height-adjustable high-precision steel ball impact testing device according to claim 2, characterized in that: The blocking structure includes a pull rod and a baffle. The baffle is mounted on the pull rod and corresponds one-to-one with the ball drop cylinders on the feed plate. The two ends of the pull rod extend out of the inner cavity. Limiting plates are provided at both ends of the pull rod, and a spring is sleeved on the pull rod between the limiting plates and the side wall of the feed plate. The baffle is inserted into the ball drop cylinder in the inner cavity.

4. The height-adjustable high-precision steel ball impact testing device according to claim 2, characterized in that: The inner cavity has through slots on both sides of the ball drop tube, which allow the baffle to pass through or move out.

5. The height-adjustable high-precision steel ball impact testing device according to claim 1, characterized in that: The ball-receiving structure includes an adjustment plate and an impact plate. An adjustment structure is provided on the base box. The adjustment plate is movably placed inside the base box and is movably connected to the adjustment structure. The impact plate is movably placed on the adjustment plate.

6. The height-adjustable high-precision steel ball impact testing device according to claim 5, characterized in that: The bottom box is provided with a horizontal crossbar, and the adjustment plate is provided with a connecting cylinder. The crossbar is passed through the connecting cylinder, so that the adjustment plate is configured to be adjustable along the crossbar.

7. The height-adjustable high-precision steel ball impact testing device according to claim 5, characterized in that: The adjustment structure includes an adjusting screw and a connecting ring. A fixing screw ring is provided on the base box. The adjusting screw passes through the fixing screw ring. A locking block is provided on one end of the adjusting screw inside the base box. A handle is provided on the adjusting screw outside the base box. A connecting ring is provided on the outer wall of the adjusting plate. A locking groove is provided in the connecting ring, and the locking block is inserted into the locking groove.

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