Bending testing machine for saw chain guide plate

Abstract

The utility model discloses a saw chain guide plate bending testing machine, which comprises a base, a saw chain guide plate bending testing device, a saw chain guide plate bending testing device, a saw chain guide plate bending testing device and a saw chain guide plate bending testing device, the two-way screw rod is arranged in the containing cavity of the base, and the two-way screw rod comprises a forward-rotation-direction screw rod and a reverse-rotation-direction screw rod which are integrally formed; the two clamping devices are arranged above the base, the two clamping devices are connected to the forward-rotation-direction screw rod and the reverse-rotation-direction screw rod in a sleeving mode and horizontally move along with rotation of the forward-rotation-direction screw rod and rotation of the reverse-rotation-direction screw rod, and a saw chain guide plate is clamped between the two clamping devices; the stress-strain sensor is used for monitoring the stress-strain condition of the saw chain guide plate; the clamping stability is realized through the bidirectional screw rod and the clamping block, the stability is ensured, multi-dimensional test data is recorded through the stress-strain sensor and the laser displacement sensor and is displayed in time through the display screen, and the monitoring effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of saw chain guide plates, in particular to a saw chain guide plate bending testing machine. Background Art

[0002] A chainsaw primarily consists of a prime mover, a chain saw guide, a saw chain, and a sprocket. The chain saw guide is secured to the prime mover's housing, and the saw chain rotates around the chain saw guide and sprocket. When felling trees or sawing wood, the chain saw guide not only withstands the resistance of the sawing process but also the immense clamping force caused by the weight of the tree. Therefore, the chain saw guide must possess sufficient bending strength. Existing saw chain guides lack a secure clamping mechanism, causing them to move during force application, affecting the accuracy of test results. Furthermore, during bending tests, test data cannot be monitored in a timely manner, compromising monitoring effectiveness. Based on this, a saw chain guide bending tester was designed. Utility Model Content

[0003] To overcome at least one of the aforementioned drawbacks of the prior art, the present invention provides a saw chain guide bending tester. This device utilizes a bidirectional screw and a clamping block to achieve clamping stability, ensuring robustness. Furthermore, stress and strain sensors and laser displacement sensors record multi-dimensional test data, which is displayed on a display screen for enhanced monitoring.

[0004] The technical solution adopted by the present invention to solve the problem is:

[0005] A saw chain guide bending tester comprises: a base, the interior of the base is hollow to form an accommodating cavity, and the top is open; a bidirectional screw, the bidirectional screw is arranged in the accommodating cavity of the base, and the bidirectional screw includes an integrally formed forward-rotating screw and a reverse-rotating screw; two clamping devices, the two clamping devices are arranged above the base, and the clamping devices are respectively sleeved on the forward-rotating screw and the reverse-rotating screw, and move horizontally with the rotation of the forward-rotating screw and the reverse-rotating screw, and the two clamping devices are used to clamp the saw chain guide; a stress and strain sensor, the stress and strain sensor is used to monitor the stress and strain of the saw chain guide; the laser displacement sensor is used to monitor the bending degree and deformation of the saw chain guide; and a PCB control board, the PCB control board is electrically connected to the stress and strain sensor and the laser displacement sensor.

[0006] By adopting the above solution, using a bidirectional screw and two clamping devices, the saw chain guide is securely clamped during the test. This design effectively solves the problem of traditional clamping devices being unable to firmly fix the guide, preventing the guide from moving during force application, thereby improving the accuracy and reliability of the test results. The stress and strain conditions of the saw chain guide during the bending test can be monitored in real time using stress and strain sensors, and the degree of bending and deformation of the saw chain guide can be monitored using laser displacement sensors.

[0007] Furthermore, it also includes a supporting frame, and the base and the clamping device are both assembled inside the supporting frame.

[0008] By adopting the above solution, the support frame improves the overall support structure, increases the stability of the support, and provides a stable platform for other components.

[0009] Furthermore, the outer surface of the forward-rotating screw is sleeved with a first slider, the outer surface of the reverse-rotating screw is sleeved with a second slider, and the bidirectional screw extends to the outside of the base and is transmission-connected to a drive motor.

[0010] By adopting the above solution, the forward-rotating screw and the reverse-rotating screw are driven by the driving motor to rotate simultaneously, so that the positions of the first slider and the second slider can be accurately controlled to achieve a clamping effect on the saw chain guide.

[0011] Furthermore, the clamping device includes: a connecting rod, which passes through the opening of the base and is fixedly connected to the first slider and the second slider respectively; a clamping block, which is fixedly arranged on the top of the connecting rod and is C-shaped.

[0012] By adopting the above solution, a good clamping effect is achieved.

[0013] Furthermore, a flexible gasket is provided on the inner side of the clamping block.

[0014] By adopting the above solution, the saw chain guide plate is prevented from being locally deformed due to excessive clamping force.

[0015] Furthermore, a force applying device is included, and the force applying device includes:

[0016] a hydraulic device, the hydraulic device being mounted on the top of the support frame;

[0017] A pressure head is drivingly connected to an output shaft of the hydraulic device.

[0018] By adopting the above solution, a pressing operation on the saw chain guide plate is achieved to realize a bending test.

[0019] Furthermore, the PCB control board also includes a display screen module, which is used to display the values ​​monitored by the laser displacement sensor and the stress and strain sensor.

[0020] By adopting the above scheme, the observation data is more intuitive. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A cross-sectional view of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the base according to an embodiment of the present utility model;

[0023] Among them, the meanings of the figure marks are as follows: 1. Base; 2. Bidirectional screw; 21. Forward-rotating screw; 211. First slider; 22. Counter-rotating screw; 221. Second slider; 23. Driving motor; 3. Clamping device; 31. Connecting rod; 32. Clamping block; 321. Flexible gasket; 4. Stress and strain sensor; 5. Laser displacement sensor; 6. PCB control board; 7. Support frame; 81. Hydraulic device; 82. Pressure head. DETAILED DESCRIPTION

[0024] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] In order to facilitate the understanding of the embodiments of the present invention, the following will be further explained with reference to specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0028] See Figure 1-Figure 2 The present invention discloses a saw chain guide bending tester, comprising a support frame 7, a base 1, a bidirectional screw 2, and two clamping devices 3. The support frame 7 is rectangular, with one opposing surface open to facilitate placement of the saw chain guide. The base 1 is hollowed to form a receiving cavity with an open top. The base 1 is assembled within the support frame 7. The bidirectional screw 2 is disposed within the receiving cavity of the base 1 and includes an integrally formed forward-rotating screw 21 and a reverse-rotating screw 22. Two clamping devices 3 are disposed above the base 1 and are respectively sleeved onto the forward-rotating screw 21 and the reverse-rotating screw 22. The clamping devices 3 move horizontally as the forward-rotating screw 21 and the reverse-rotating screw 22 rotate, and the two clamping devices 3 are used to clamp the saw chain guide. The bidirectional screw 2 and the two clamping devices 3 ensure that the saw chain guide is securely clamped during the test. This design effectively solves the problem that the traditional clamping device 3 cannot firmly fix the guide plate, prevents the guide plate from moving during the force application process, and thus improves the accuracy and reliability of the test results.

[0029] The outer surface of the forward-rotating screw 21 is sleeved with a first slider 211, and the outer surface of the reverse-rotating screw 22 is sleeved with a second slider 221. The bidirectional screw 2 extends to the outside of the base 1 and is connected to a drive motor 23. The drive motor 23 drives the forward-rotating screw 21 and the reverse-rotating screw 22 to rotate simultaneously, precisely controlling the positions of the first slider 211 and the second slider 221, thereby effectively clamping the saw chain guide.

[0030] In this embodiment, the clamping device 3 includes a connecting rod 31 and a clamping block 32. The connecting rod 31 passes through the opening of the base 1 and is fixedly connected to the first slider 211 and the second slider 221, respectively. The clamping block 32 is fixedly mounted on the top of the connecting rod 31 and is C-shaped, achieving a good clamping effect. In this embodiment, a flexible gasket 321 is provided on the inner side of the clamping block 32 to prevent local deformation of the saw chain guide due to excessive clamping force.

[0031] In this embodiment, a stress and strain sensor 4, a laser displacement sensor 5, and a PCB control board 6 are also provided. The stress and strain sensor 4 is used to monitor the stress and strain of the saw chain guide, and the laser displacement sensor 5 is used to monitor the bending and deformation of the saw chain guide. The PCB control board 6 is electrically connected to the stress and strain sensor 4 and the laser displacement sensor 5. The stress and strain sensor 4 has a mounting terminal at its end. The mounting terminal uses a magnet to attach the mounting terminal to the saw chain guide to monitor the stress and strain of the saw chain guide. The laser displacement sensor 5 is mounted above the saw chain guide. In this embodiment, the laser displacement sensor 5 can be mounted on the top of the clamping block 32. The PCB control board 6 is mounted on the outer side of the support frame 7. The PCB control board 6 also includes a display module for displaying the values ​​monitored by the laser displacement sensor 5 and the stress and strain sensor 4, making the data more intuitive.

[0032] Among them, in order to apply pressure to the saw chain guide to bend it, a force-applying device is also included in this embodiment. The force-applying device includes a hydraulic device 81 and a pressure head 82. The hydraulic device 81 is assembled on the top of the support frame 7. The pressure head 82 is connected to the output shaft of the hydraulic device 81 to realize the pressing operation of the saw chain guide to achieve a bending test.

[0033] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A saw chain guide bending tester, characterized in that: include: A base, wherein the interior of the base is hollow to form a receiving cavity and the top is open; A bidirectional screw, the bidirectional screw being disposed in the accommodating cavity of the base and comprising an integrally formed forward-rotating screw and a reverse-rotating screw; Two clamping devices, the two clamping devices are arranged above the base, and the clamping devices are respectively sleeved on the forward-rotating screw and the reverse-rotating screw, and move horizontally with the rotation of the forward-rotating screw and the reverse-rotating screw, and are used to clamp the saw chain guide between the two clamping devices; A stress and strain sensor, wherein the stress and strain sensor is used to monitor the stress and strain of the saw chain guide; A laser displacement sensor for monitoring the bending and deformation of the saw chain guide; A PCB control board is electrically connected to the stress and strain sensor and the laser displacement sensor.

2. A saw chain guide bending tester according to claim 1, characterized in that: It also includes a supporting frame, and the base and the clamping device are both assembled inside the supporting frame.

3. The saw chain guide bending tester according to claim 2, characterized in that: The outer surface of the forward-rotating screw is sleeved with a first slider, the outer surface of the reverse-rotating screw is sleeved with a second slider, and the bidirectional screw extends to the outside of the base and is transmission-connected to a drive motor.

4. The saw chain guide bending tester according to claim 3, characterized in that: The clamping device comprises: a connecting rod, the connecting rod passing through the opening of the base and being fixedly connected to the first slider and the second slider respectively; The clamping block is fixedly arranged on the top of the connecting rod, and the clamping block is C-shaped.

5. The saw chain guide bending tester according to claim 4, characterized in that: A flexible gasket is provided on the inner side of the clamping block.

6. The saw chain guide bending tester according to claim 5, characterized in that: Also included is a force applying device, the force applying device comprising: a hydraulic device, the hydraulic device being mounted on the top of the support frame; A pressure head is drivingly connected to an output shaft of the hydraulic device.

7. The saw chain guide bending tester according to claim 6, characterized in that: The PCB control board also includes a display screen module, which is used to display the values ​​monitored by the laser displacement sensor and the stress and strain sensor.

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