Impact testing machine for optical cable detection

Abstract

The utility model discloses an impact testing machine for optical cable detection, which comprises a vertical frame, a servo motor and a clamp, two vertical and parallel guide rods are fixedly arranged in the vertical frame, the clamp is arranged on a bottom plate at the lower part of the vertical frame, chain wheels are respectively arranged at the upper end and the lower end of the vertical frame, and a chain is connected between the two chain wheels. A servo motor drives one chain wheel to rotate, an impact hammer body is connected to the two guide rods in a sliding mode, a height-adjustable fixing beam is installed between the upper portions of the two guide rods through bolts, a wedge-shaped touch plate is fixed to the lower side of the fixing beam, a longitudinal linear bearing is installed on the inner side of the impact hammer body, and a rolling wheel is installed on the side face of the linear bearing. The idler wheel and the wedge-shaped touch plate are located on the same vertical line, a hook is installed on the chain, and the hook hooks the linear bearing after moving downwards. The servo motor drives the chain wheel to drive the chain to lift the hammer, and clamping and breaking are not prone to occurring. And the hammer can be automatically lifted and released, and the released impact hammer body does free falling motion, so that the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of optical cable detection, in particular to an impact testing machine used for optical cable detection. Background Art

[0002] With the development of communication technology, people's lives are increasingly inseparable from the use of optical cables for information transmission, and global telecom operators are also focusing on laying wider, denser and higher-quality optical cables. The impact test of optical cables is to detect and determine the impact resistance of optical cables. After searching, it was found that the Chinese utility model patent with publication number CN213068526U discloses an optical cable repeated impact test device, which includes: an impact base for fixing the optical cable, and a motor is fixed on the impact base; a connecting rod, connected to the motor, and the motor can drive the connecting rod to rotate, and a stranded wire, one end of which is connected to the connecting rod, and the other end is provided with a weight block for impacting the optical cable. The utility model involves a repeated impact test device for optical cables, which can make impact tests more convenient. However, the above scheme also has the following shortcomings: the motor is used to drive the connecting rod to rotate for twisting, and then the weight block is released to fall to impact the optical cable sample, but the falling of the weight block is a non-free fall motion, because the weight block is pulled by the tail twisted wire during the falling process, and the release of the tail twisted wire needs to overcome the rotation resistance of the motor. In the case of the non-free fall motion of the weight block, it is difficult to accurately calculate the momentum of the impact, so the accuracy of the test detection is not high. Utility Model Content

[0003] The purpose of the utility model is to provide an impact testing machine for optical cable detection to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an impact testing machine for optical cable detection, comprising a stand, a servo motor and a clamp, wherein two vertical and parallel guide rods are fixedly installed in the stand, the clamp is installed on a bottom plate at the bottom of the stand, the clamp is used to fix the optical cable sample, sprockets are respectively installed at the upper and lower ends of the stand, a chain is connected between the two sprockets, the servo motor drives one of the sprockets to rotate, two vertical chain tracks are installed in the stand, two vertical sections of the chain are respectively connected to the chain tracks in a one-to-one correspondence, an impact hammer body is slidably connected to the two guide rods, a fixed beam with adjustable height is installed between the upper parts of the two guide rods by bolts, a wedge-shaped touch plate is fixed on the lower side of the fixed beam, a longitudinal linear bearing is installed on the inner side of the impact hammer body, a roller is installed on the side of the linear bearing, the roller and the wedge-shaped touch plate are on the same vertical line, a hook is installed on the chain, and the hook hooks the linear bearing after moving down.

[0005] Preferably, a vertical ruler is fixedly mounted on the front side of the stand.

[0006] Preferably, a transparent round tube is installed on the side of the stand, a hammer head is slidably connected in the round tube, and a steel wire rope is connected to the upper end of the hammer head.

[0007] Preferably, a rectangular notch is provided on the inner side of the fixing beam, and the notch is used for the hook to pass through up and down.

[0008] Compared with the prior art, the utility model has the following beneficial effects: the testing machine uses a servo motor to drive the sprocket to drive the chain to lift the hammer, which is not prone to getting stuck or breaking. The hammer can be automatically lifted and released, and the impact hammer body performs free fall after being released, which is convenient to use and helps to improve the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0010] Figure 2 It is a side view structural schematic diagram of the utility model;

[0011] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the utility model.

[0012] In the figure: 1. stand; 2. sprocket; 3. chain; 4. fixed beam; 5. impact hammer; 6. guide rod; 7. ruler; 8. clamp; 9. round tube; 10. hammer head; 11. wire rope; 12. servo motor; 13. linear bearing; 14. wedge-shaped touch plate; 15. hook. DETAILED DESCRIPTION

[0013] 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.

[0014] See also Figure 1-3 The utility model provides a technical solution: an impact tester for optical cable detection, including a stand 1, a servo motor 12 and a clamp 8. Two vertical and parallel guide rods 6 are fixedly installed in the stand 1. The clamp 8 is installed on the bottom plate at the bottom of the stand 1. A vertical ruler 7 is fixedly installed on the front side of the stand 1. The clamp 8 is used to fix the optical cable sample. Sprocket wheels 2 are respectively installed at the upper and lower ends of the stand 1. A chain 3 is connected between the two sprocket wheels 2. The servo motor 12 drives one of the sprocket wheels 2 to rotate. Two vertical chain tracks are installed in the stand 1. The two vertical sections of the chain 3 are respectively connected to the chain tracks in a one-to-one correspondence. The chain tracks are used to constrain the shape of the chain 3 to prevent the chain 3 from being deformed after being subjected to a horizontal force.

[0015] The impact hammer body 5 is slidably connected to the two guide rods 6. The guide rods 6 are smooth rods, and the friction between the guide rods 6 and the impact hammer body can be ignored. A fixed beam 4 with adjustable height is installed between the upper parts of the two guide rods 6 by bolts. A proximity switch is installed on the lower side of the fixed beam. By adjusting the height of the fixed beam 4, the height of the lifting hammer can be adjusted. A wedge-shaped touch plate 14 is fixed on the lower side of the fixed beam 4. A longitudinal linear bearing 13 is installed on the inner side of the impact hammer body 5. The linear bearing 13 can be elastically retracted. A roller is installed on the side of the linear bearing 13. The roller and the wedge-shaped touch plate 14 are on the same vertical line. A hook 15 is installed on the chain 3. After the hook 15 moves down, it hooks the linear bearing 13. A rectangular notch is provided on the inner side of the fixed beam 4, and the notch is used for the hook 15 to pass through up and down.

[0016] When the hook 15 pulls (the hook 15 moves up and down with the operation of the chain 3), the impact hammer 5 moves upward, and when the roller rolls to the wedge-shaped touch plate 14, there is a forward offset when the roller rolls upward along the inclined surface, thereby pushing the linear bearing 13 to retract and disengage from the hook 15, and then the impact hammer 5 falls freely to impact the sample clamped below. When the impact hammer 5 is at the bottom, the hook 15 moves down to the bottom and pushes the linear bearing 13 to retract, and it can be hooked again. A transparent round tube 9 is installed on the side of the stand 1. The round tube 9 can be made of acrylic material. A hammer head 10 is slidably connected in the round tube 9. The upper end of the hammer head 10 is connected to a wire rope 11, which is suitable for manual lifting of the hammer for impact testing.

[0017] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An impact testing machine for optical cable testing, comprising a stand (1), a servo motor (12) and a fixture (8), wherein two vertical and parallel guide rods (6) are fixedly installed in the stand (1), and the fixture (8) is installed on a bottom plate at the bottom of the stand (1), and the fixture (8) is used to fix the optical cable sample, and is characterized in that: Sprockets (2) are respectively installed at the upper and lower ends of the stand (1), a chain (3) is connected between the two sprockets (2), the servo motor (12) drives one of the sprockets (2) to rotate, two vertical chain tracks are installed in the stand (1), and the two vertical sections of the chain (3) are respectively connected to the chain tracks in a one-to-one correspondence, an impact hammer (5) is slidably connected to the two guide rods (6), a height-adjustable fixed beam (4) is installed between the upper parts of the two guide rods (6) by bolts, a wedge-shaped touch plate (14) is fixed on the lower side of the fixed beam (4), a longitudinal linear bearing (13) is installed on the inner side of the impact hammer (5), a roller is installed on the side of the linear bearing (13), and the roller and the wedge-shaped touch plate (14) are on the same vertical line, and a hook (15) is installed on the chain (3), and the hook (15) hooks the linear bearing (13) after moving downward.

2. The impact testing machine for optical cable detection according to claim 1, characterized in that: A vertical ruler (7) is fixedly mounted on the front side of the stand (1).

3. The impact testing machine for optical cable detection according to claim 1, characterized in that: A transparent round tube (9) is installed on the side of the stand (1), a hammer head (10) is slidably connected in the round tube (9), and a steel wire rope (11) is connected to the upper end of the hammer head (10).

4. The impact testing machine for optical cable detection according to claim 1, characterized in that: A rectangular notch is provided on the inner side of the fixed beam (4), and the notch is used for the hook (15) to pass through up and down.

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