A tensile strength testing machine

Abstract

The utility model discloses a tensile strength testing machine, including two connecting plates, two the connecting plate symmetrical setting, and two the connecting plate's end fixed assembly has the main part, the lateral wall fixed assembly of main part has chain tension structure, chain tension structure and chain are matched, three three the side wall of clamp adjusting structure is fixedly connected with clamping plate, clamping ring and clamping block respectively, and clamp adjusting structure cooperates with different clamping structure (clamping plate, clamping ring and clamping block), according to the use of adjusting clamping component as needed, guarantee the extensive application range of equipment, adopt modularization clamp system, can according to sample shape (such as board, stick, film etc.) quick replacement clamp, save time and effort, improve the experimental efficiency of tensile testing machine, avoid the sample sliding, deflection even falling apart caused by clamp mismatching, lead to test data distortion even test interruption.

Description

Technical Field

[0001] This utility model relates to the field of tensile strength testing technology, and specifically to a tensile strength testing machine. Background Technology

[0002] Tensile strength testing machine is a key piece of equipment used to test the mechanical properties of materials under tensile load (such as tensile strength, yield strength, elongation at break, etc.). In actual use, traditional tensile strength testing machines have problems. During the tensile process, due to the mismatch of the clamps, the specimens often slip, deviate, or even fall off, resulting in distorted test data or even test interruption. Replacing the clamps is time-consuming and laborious, and the practicality is poor. Utility Model Content

[0003] The purpose of this invention is to provide a tensile strength testing machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tensile strength testing machine, comprising two connecting plates symmetrically arranged, with a main body fixedly mounted at the ends of the two connecting plates, a support plate penetrating through the inner walls of the two connecting plates, multiple screw holes on the side walls of the support plates, and the side walls of the two connecting plates connected to two different screw holes by fixing screws, three through slots on the side walls of the main body, each through slot having a clamp adjustment structure slidably engaged, the side ends of the three clamp adjustment structures penetrating the main body and connected to a second sprocket, a motor fixedly mounted on the side walls of the main body, a first sprocket fixedly mounted at the end of the motor shaft of the motor, the first sprocket being connected to the second sprocket via a chain, a chain tensioning structure fixedly mounted on the side walls of the main body, the chain tensioning structure matching the chain, and clamping plates, clamping rings, and clamping blocks respectively fixedly connected to the side walls of the three clamp adjustment structures.

[0005] Preferably, the chain tensioning structure includes a stud, which is rotatably mounted on the side wall of the main body. A vertical plate is screwed to one side of the outer wall of the stud. A pull wheel is rotatably mounted in the middle of the side wall of the vertical plate. The pull wheel is fitted into the inner wall of the chain. A limit rod is mounted through the inner wall of the other side of the vertical plate. The limit rod is fixedly connected to the side wall of the main body.

[0006] Preferably, the clamp adjustment structure includes a double-ended stud, which is located in the through groove, with one end of the double-ended stud rotatably connected to the inner cavity sidewall of the through groove, and the other end of the double-ended stud extending through the through groove and the main body to the outer wall of the main body and connected to the second sprocket.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: The main body is connected by two connecting plates, and the longitudinal position of the main body is adjusted in conjunction with the support plate. Different clamping adjustment structures can be adjusted to the working position by cooperating with the fixing screws and screw holes at different positions. The clamping adjustment structure cooperates with different clamping structures (clamping plates, clamping rings, and clamping blocks), and the use of clamping components can be adjusted as needed, ensuring a wide range of applicability for the equipment. The modular clamping system allows for quick clamp replacement according to the sample shape (such as plate, rod, film, etc.), saving time and effort, improving the experimental efficiency of the tensile testing machine, and avoiding sample slippage, skewness, or even detachment due to clamp mismatch, which could lead to distorted test data or even test interruption. Through the cooperation of the clamping adjustment structure with the second sprocket, chain, and first sprocket, the motor is activated to control one of the clamping adjustment structures to perform clamping or loosening actions. Through the action of the material strip tensioning structure, the chain can be hung on the second sprocket outside different clamping adjustment structures and excess material strip can be tightened, ensuring the best performance. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a three-dimensional schematic diagram of the clamp adjustment structure of this utility model; Figure 3 This is a three-dimensional view of the assembly of the connecting plate and the support plate.

[0009] In the diagram: 1-Connecting plate, 2-Fixing screw, 3-Support plate, 4-Screw hole, 5-Main body, 6-Chain tensioning structure, 61-Stud, 62-Vertical plate, 63-Pull wheel, 64-Limiting rod, 7-Motor, 8-Clamping adjustment structure, 81-Double-headed stud, 82-Slider, 9-First sprocket, 10-Chain, 11-Second sprocket, 12-Clamping plate, 13-Clamping ring, 14-Clamping block. Detailed Implementation

[0010] 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.

[0011] Please see Figure 1-3This utility model provides a tensile strength testing machine, including two connecting plates 1, which are symmetrically arranged, and a main body 5 is fixedly assembled at the end of the two connecting plates 1. A support plate 3 is installed through the inner wall of the two connecting plates 1. Multiple screw holes 4 are opened on the side wall of the support plate 3. The side wall of the two connecting plates 1 is connected to two different screw holes 4 through a fixing screw 2. Three through slots are opened on the side wall of the main body 1, and a clamp adjustment structure 8 is slidably engaged in each through slot. The side ends of the three clamp adjustment structures 8 are all through the main body 5 and connected to a second sprocket 11. A motor 7 is fixedly assembled on the side wall of the main body 1. A first sprocket 9 is fixedly assembled at the end of the motor shaft of the motor 7. The first sprocket 9 is connected to the second sprocket 11 through a chain 10. A chain tensioning structure 6 is fixedly assembled on the side wall of the main body 1. The chain tensioning structure 6 matches the chain. A clamping plate 12, a clamping ring 13, and a clamping block 14 are respectively fixedly connected to the side wall of the three clamp adjustment structures 8.

[0012] The main body is connected by two connecting plates 1, and the longitudinal position of the main body 5 is adjusted by the support plate 3. By fixing the screw 3 and engaging with the screw holes 4 at different positions, different clamp adjustment structures 8 can be adjusted to the working position. The clamp adjustment structure 8 engages with different clamping structures (clamping plate 12, clamping ring 13, and clamping block 14). The use of clamping components can be adjusted as needed to ensure the wide applicability of the equipment. The modular clamp system allows for quick clamp replacement according to the shape of the sample (such as plate, rod, film, etc.), saving time and effort, improving the experimental efficiency of the tensile testing machine, and avoiding sample slippage, skewness, or even detachment caused by clamp mismatch, which can lead to distorted test data or even test interruption. By engaging the clamp adjustment structure 8 with the second sprocket 11, chain 10, and first sprocket 9, the motor 7 is turned on to control one of the clamp adjustment structures 8 to work, performing clamping or loosening actions. Through the action of the material strip tensioning structure 6, the chain 10 can be hung on the second sprocket 11 outside different clamp adjustment structures 8 and excess material strip can be tightened to ensure the effect of use.

[0013] The chain tensioning structure 6 includes a stud 61, which is rotatably mounted on the side wall of the main body 5. A vertical plate 62 is screwed to one side of the outer wall of the stud 61. A pull wheel 63 is rotatably mounted in the middle of the side wall of the vertical plate 62. The pull wheel 63 is fitted into the inner wall of the chain 10. A limit rod 64 is mounted through the inner wall of the other side of the vertical plate 62. The limit rod 64 is fixedly connected to the side wall of the main body 1.

[0014] After adjusting the hanging position of the chain 10, rotate the stud 61 to drive the vertical plate 62 connected to it to move. At the same time, the limiting rod 64 on the other side restricts the displacement trajectory of the vertical plate 64 and prevents it from rotating. This drives the pull wheel 63 in the middle of the side wall to tighten the chain 10, making it taut on the first sprocket 9 and the adjusted second sprocket 11.

[0015] The clamp adjustment structure 8 includes a double-ended stud 81, which is located in the through groove. One end of the double-ended stud 81 is rotatably connected to the inner wall of the through groove, and the other end of the double-ended stud 81 extends through the through groove and the main body 5 to the outer wall of the main body 5 and is connected to the second sprocket 11.

[0016] When it is necessary to adjust the movement of the clamping component, first turn on the motor 7 to drive the first sprocket 9 to rotate. The first sprocket 9 drives the second sprocket 11 to rotate through the material bar 10. At this time, the second sprocket 11 will drive the double-headed stud 81 to rotate and drive the two sliders 82 that are screwed to it on the outer wall to move towards each other, close or far away, to complete the work of tightening or loosening. The sliders 82 are restricted in the through groove to maintain a fixed trajectory displacement.

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

Claims

1. A tensile strength testing machine, characterized in that: The system includes two connecting plates (1), which are symmetrically arranged. A main body (5) is fixedly assembled at the ends of the two connecting plates (1). A support plate (3) is installed through the inner wall of the two connecting plates (1). The side wall of the support plate (3) is provided with multiple screw holes (4). The side walls of the two connecting plates (1) are connected to two different screw holes (4) by fixing screws (2). The side wall of the main body (5) is provided with three through slots, and each through slot is slidably engaged with a clamp adjustment structure (8). The side ends of the three clamp adjustment structures (8) are all through the main body. The body (5) is connected to a second sprocket (11). A motor (7) is fixedly mounted on the side wall of the body (5). A first sprocket (9) is fixedly mounted on the end of the motor shaft of the motor (7). The first sprocket (9) is connected to the second sprocket (11) through a chain (10). A chain tensioning structure (6) is fixedly mounted on the side wall of the body (5). The chain tensioning structure (6) matches the chain. The side walls of the three clamp adjustment structures (8) are respectively fixedly connected to a clamping plate (12), a clamping ring (13), and a clamping block (14).

2. The tensile strength testing machine according to claim 1, characterized in that: The chain tensioning structure (6) includes a stud (61), which is rotatably mounted on the side wall of the main body (5). A vertical plate (62) is screwed to one side of the outer wall of the stud (61). A pull wheel (63) is rotatably mounted in the middle of the side wall of the vertical plate (62). The pull wheel (63) is fitted to the inner wall of the chain (10). A limit rod (64) is mounted through the inner wall of the other side of the vertical plate (62). The limit rod (64) is fixedly connected to the side wall of the main body (5).

3. A tensile strength testing machine according to claim 1, characterized in that: The clamp adjustment structure (8) includes a double-ended stud (81), which is located in the through groove. One end of the double-ended stud (81) is rotatably connected to the inner wall of the through groove, and the other end of the double-ended stud (81) extends through the through groove and the main body (5) to the outer wall of the main body (5) and is connected to the second sprocket (11).

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