A tensile testing machine for resin

Abstract

This utility model relates to the field of resin tensile testing machines, and discloses a tensile testing machine for resin, including a processing table. A fixing mechanism is provided on the top of the processing table, and the fixing mechanism includes a geared disc. A base is fixedly connected to the top of the processing table, and a rotating shaft is rotatably connected to the inner wall of the base. The geared disc is fixedly connected to the top of the rotating shaft, and a connecting block is fixedly connected to the outer wall of the rotating shaft. A connecting rod A is slidably connected to the inner wall of the connecting block, and a connecting rod B is hinged to the top of connecting rod A. A clamping plate is hinged to the top of connecting rod B. In this utility model, through the linkage design of the geared disc, connecting block, connecting rod A, and connecting rod B, the clamping plate can simultaneously fix multiple sets of resin samples. The clamping plate moves smoothly under the guidance of the guide rail, ensuring that each set of samples is subjected to uniform force. The pawl is tightly attached to the geared disc under the action of a spring, preventing the geared disc from loosening.

Description

Technical Field

[0001] This utility model relates to the field of resin tensile testing machines, and more particularly to a tensile testing machine for resins. Background Technology

[0002] Tensile strength, also known as ultimate tensile strength, refers to the maximum stress a material can withstand before breaking. In the production process of phenolic resin products, tensile strength tests are frequently conducted to determine the parameters of the phenolic resin products. In testing the tensile strength of phenolic resin products, tensile testing fixtures are often used to clamp both ends of the phenolic resin product, and forces are applied to both ends of the phenolic resin product away from the phenolic resin product through the tensile testing fixtures to stretch the phenolic resin product to a certain extent in order to obtain the tensile strength of the phenolic resin product.

[0003] Existing numerical tensile testing machines fix resin specimens, apply tensile force, and measure force and displacement data in real time until the specimen breaks. During the test, force and displacement sensors record the stress and deformation of the specimen, respectively, and the data acquisition system generates force-displacement and stress-strain curves. Finally, key parameters such as tensile strength, elongation at break, and elastic modulus are calculated to evaluate the mechanical properties of the resin. This equipment is easy to operate, highly accurate, and widely used in materials research and development and quality control.

[0004] However, in actual use, the standard fixtures of general tensile testing machines are designed for testing a single sample. If multiple sets of resins need to be fixed at the same time, multiple sets of special fixtures need to be designed. Moreover, the current fixtures are difficult to meet the fixing requirements of various resin samples. Therefore, based on the problems mentioned above, a tensile testing machine for resins has been introduced. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a tensile testing machine for resin, which aims to solve the problem in the prior art that "the standard fixtures of general tensile testing machines are designed for testing a single sample, and if multiple groups of resins need to be fixed at the same time, special multiple sets of fixtures need to be designed".

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tensile testing machine for resin, comprising a processing table, a fixing mechanism being provided on the top of the processing table, the fixing mechanism including a toothed disc, a chassis being fixedly connected to the top of the processing table, a rotating shaft being rotatably connected to the inner wall of the chassis, a toothed disc being fixedly connected to the top of the rotating shaft, a connecting block being fixedly connected to the outer wall of the rotating shaft, a connecting rod A being slidably connected to the inner wall of the connecting block, a connecting rod B being hinged to the top of the connecting rod A, and a clamping plate being hinged to the top of the connecting rod B.

[0007] As a further description of the above technical solution: the bottom of the inner wall of the chassis is fixedly connected to a guide rail, and the bottom of the clamping plate is slidably connected to the outer wall of the guide rail.

[0008] As a further description of the above technical solution: a vertical rod is rotatably connected to the inner wall of the chassis, an arc-shaped plate is fixedly connected to the top of the chassis, and a pawl is fixedly connected to the vertical rod.

[0009] As a further description of the above technical solution: a spring is fixedly connected to the outer wall of the arc-shaped plate, and the extension end of the spring is fixedly connected to the outer wall of the pawl.

[0010] As a further description of the above technical solution: the inner wall of the connecting block is slidably connected to a connecting rod A, and a hexagonal insert is inserted into the top of the connecting block, with the outer wall of the hexagonal insert slidingly penetrating the connecting block.

[0011] As a further description of the above technical solution: the inner wall of the chassis is provided with a groove, and the clamping plate is adapted to the groove.

[0012] As a further description of the above technical solution: a hydraulic cylinder is fixedly connected to the top of the processing table, and a sliding column is fixedly connected to the top of the processing table.

[0013] As a further description of the above technical solution: the number of fixing mechanisms is two sets, one set is fixedly connected to the top of the processing table, and the other set is fixedly connected to the top of the hydraulic cylinder and slidably connected to the outer wall of the slide column.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, through the linkage design of the toothed disc, connecting block, connecting rod A and connecting rod B, the clamp can fix multiple sets of resin samples at the same time. The clamp moves smoothly under the guidance of the guide rail, ensuring that each set of samples is subjected to uniform force. The pawl is tightly attached to the toothed disc under the action of the spring to prevent the toothed disc from loosening.

[0016] 2. In this utility model, the connecting rod A is slidably connected inside the connecting block, and the position of the clamping plate can be adjusted according to the sample size. The position of the clamping plate can be adjusted by rotating the gear plate, and the hexagonal insert rod can achieve rapid positioning. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a tensile testing machine for resin proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the fixing mechanism structure of a tensile testing machine for resin proposed in this utility model.

[0019] Figure 3This is a schematic diagram of the connecting block structure for a resin tensile testing machine proposed in this utility model.

[0020] Figure 4 This utility model proposes a tensile testing machine for resins. Figure 2 A magnified schematic diagram of structure A in the diagram.

[0021] Legend:

[0022] 1. Machining table; 2. Hydraulic cylinder; 3. Sliding column; 4. Fixing mechanism; 411. Gear plate; 412. Connecting block; 413. Connecting rod A; 414. Connecting rod B; 415. Clamping plate; 416. Guide rail; 417. Arc plate; 418. Spring; 419. Vertical rod; 4111. Pawl; 4112. Chassis; 5. Hexagonal insert rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1 - Figure 3This utility model provides an embodiment of a tensile testing machine for resin, including a processing table 1, which provides a stable working platform and supports the entire structure of the tensile testing machine. A fixing mechanism 4 is provided on the top of the processing table 1. The fixing mechanism 4 includes a geared disc 411. By rotating the geared disc 411, the rotating shaft and connecting block 412 are driven to rotate, thereby adjusting the clamping plate 415. A base plate 4112 is fixedly connected to the top of the processing table 1. A rotating shaft is rotatably connected to the inner wall of the base plate 4112, supporting the geared disc 411 and the rotating shaft to ensure stable rotation. The top of the rotating shaft is fixedly connected to the geared disc 411, and the outer wall of the rotating shaft is fixedly connected to... A connecting block 412 connects the rotating shaft and connecting rod A413, converting rotational motion into linear motion. Connecting rod A413 is slidably connected to the inner wall of connecting block 412, transmitting the rotational motion of connecting block 412 to connecting rod B414, driving the clamping plate 415 to move. Connecting rod B414 is hinged to the top of connecting rod A413, transmitting the motion of connecting rod A413 to clamping plate 415, enabling the opening and closing of clamping plate 415. Clamping plate 415 is hinged to the top of connecting rod B414, directly fixing the resin sample and ensuring it does not move during testing. A guide rail 416 is fixedly connected to the bottom of the inner wall of the chassis 4112, guiding the clamping plate. The movement of plate 415 ensures smooth operation. The bottom of plate 415 is slidably connected to the outer wall of guide rail 416. A vertical rod 419 is rotatably connected to the inner wall of chassis 4112, supporting pawl 4111 and ensuring effective fixation of gear disc 411. An arc-shaped plate 417 is fixedly connected to the top of chassis 4112, fixing spring 418 and ensuring effective force application by spring 418. Pawl 4111 is fixedly connected to vertical rod 419, which, under the action of spring 418, tightly adheres to gear disc 411, preventing gear disc 411 from loosening. Spring 418 is fixedly connected to the outer wall of arc-shaped plate 417, providing elastic force to ensure... The pawl 4111 can firmly fix the gear plate 411. The extension end of the spring 418 is fixedly connected to the outer wall of the pawl 4111. The inner wall of the chassis 4112 is provided with a slot. The clamping plate 415 is adapted to the slot. The top of the processing table 1 is fixedly connected to a hydraulic cylinder 2, which provides power to drive the top fixing mechanism 4 to rise and fall, so as to realize the tensile test. The top of the processing table 1 is fixedly connected to a sliding column 3. There are two sets of fixing mechanisms 4. One set is fixedly connected to the top of the processing table 1, and the other set is fixedly connected to the top of the hydraulic cylinder 2 and slidably connected to the outer wall of the sliding column 3, guiding the rising and falling movement of the hydraulic cylinder 2 and ensuring its smooth movement.

[0025] Reference Figure 1 , Figure 4 The inner wall of the connecting block 412 is slidably connected to the connecting rod A413, which transmits the rotational motion of the connecting block 412 to the connecting rod B414, driving the clamping plate 415 to move. A hexagonal insert rod 5 is inserted into the top of the connecting block 412. The outer wall of the hexagonal insert rod 5 slides through the connecting block 412 for quick positioning, ensuring that the connecting block 412 can be firmly fixed after adjustment.

[0026] Working principle: A hydraulic cylinder 2 is installed on the processing table 1, which drives the top fixing mechanism 4 to rise and fall, thereby fixing the resin and performing a tensile test. A rotating rod rotates inside the chassis 4112, and a gear plate 411 is installed on the top of the rotating rod. Rotating the gear plate 411 drives the connecting block 412 on the outer wall of the rotating rod to rotate. The connecting block 412 connects multiple sets of connecting rods A413 to rotate, thereby driving the adjustment of the clamping plate 415 hinged at the top of the connecting rod B414. Therefore, multiple sets of resin can be fixed and tested simultaneously. After being fixed by the gear plate 411, the pawl 4111 fixes and limits the gear plate 411. Under the action of the spring 418, the pawl 4111 is tightly attached to the outer surface of the gear plate 411. The connecting rod A413 is slidably set inside the connecting block 412. The values ​​of different specifications can be adjusted and fixed according to the requirements. At the same time, a single set of resin can also be fixed, and the hexagonal plug rod 5 is used for quick limiting.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tensile testing machine for resins, comprising a processing table (1), characterized in that: The top of the processing table (1) is provided with a fixing mechanism (4), the fixing mechanism (4) includes a gear plate (411), the top of the processing table (1) is fixedly connected to a chassis (4112), the inner wall of the chassis (4112) is rotatably connected to a rotating shaft, the top end of the rotating shaft is fixedly connected to a gear plate (411), the outer wall of the rotating shaft is fixedly connected to a connecting block (412), the inner wall of the connecting block (412) is slidably connected to a connecting rod A (413), the top end of the connecting rod A (413) is hinged to a connecting rod B (414), and the top end of the connecting rod B (414) is hinged to a clamping plate (415).

2. The tensile testing machine for resin according to claim 1, characterized in that: The bottom of the inner wall of the chassis (4112) is fixedly connected to a guide rail (416), and the bottom of the clamping plate (415) is slidably connected to the outer wall of the guide rail (416).

3. A tensile testing machine for resin according to claim 1, characterized in that: A vertical rod (419) is rotatably connected to the inner wall of the chassis (4112), an arc plate (417) is fixedly connected to the top of the chassis (4112), and a pawl (4111) is fixedly connected to the vertical rod (419).

4. A tensile testing machine for resin according to claim 3, characterized in that: A spring (418) is fixedly connected to the outer wall of the arc plate (417), and the extended end of the spring (418) is fixedly connected to the outer wall of the pawl (4111).

5. A tensile testing machine for resin according to claim 1, characterized in that: The inner wall of the connecting block (412) is slidably connected to a connecting rod A (413), and a hexagonal insert rod (5) is inserted into the top of the connecting block (412). The outer wall of the hexagonal insert rod (5) slides through the connecting block (412).

6. A tensile testing machine for resin according to claim 1, characterized in that: The inner wall of the chassis (4112) is provided with a slot, and the clamping plate (415) is adapted to the slot.

7. A tensile testing machine for resin according to claim 1, characterized in that: A hydraulic cylinder (2) is fixedly connected to the top of the processing table (1), and a sliding column (3) is fixedly connected to the top of the processing table (1).

8. A tensile testing machine for resin according to claim 1, characterized in that: The number of fixing mechanisms (4) is two sets, one set is fixedly connected to the top of the processing table (1), and the other set is fixedly connected to the top of the hydraulic cylinder (2) and slidably connected to the outer wall of the slide column (3).

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