Clamp tool of metal mechanical property testing machine
The fixture tooling with a split structure design solves the problem of insufficient adaptability of traditional clamping blocks, and realizes efficient and low-cost testing of multi-shaped metal samples.
Patent Information
- Application Number
- CN202520331839.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Traditional integrated clamping block structure metal mechanical property testing machine fixtures lack adaptability when dealing with metal samples of different shapes, resulting in complex operation, high cost and low efficiency.
It adopts a split structure design, including a base, clamps and bolt connections. The clamps are replaceable to accommodate metal samples with different shapes and sizes. They are fixed to the base by bolts and nuts.
It improves the versatility and flexibility of the fixture, reduces the types of spare parts and operation time, lowers costs, and improves testing efficiency and safety.
Smart Images

Figure CN223841625U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixture technology, and in particular to a fixture for a metal mechanical property testing machine. Background Technology
[0002] In the mechanical property testing of metallic materials, the design and function of the fixtures are crucial, directly affecting the accuracy, efficiency, and safety of the test. Traditional metal mechanical property testing machine fixtures, such as those described in the patent technology with announcement number CN219977967U, typically employ an integrated clamping block structure. While this integrated design can provide good clamping stability in some situations, it has significant limitations when dealing with metal specimens of different shapes.
[0003] Specifically, the main problem with traditional integrated clamping block structures lies in their lack of adaptability. When mechanical property testing is required on metals of different shapes, a corresponding integrated clamping block must be prepared for each shape. This not only increases operational complexity but also leads to increased costs, as multiple clamping blocks of different specifications need to be stocked. Furthermore, changing clamping blocks can be time-consuming, reducing testing efficiency, especially in scenarios requiring testing a large number of metals of different shapes. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a fixture for a metal mechanical property testing machine.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A fixture for a metal mechanical property testing machine includes a base, the base comprising a first plate having an assembly groove on its front side and operating holes on both its left and right sides, the bottom edge of which has a first assembly hole penetrating both sides of the first plate; and a fixture comprising a second plate having a rearwardly recessed clamping portion and a locking portion below the clamping portion on its front side, and an assembly plate corresponding to the assembly groove on its rear side, the assembly plate having a second assembly hole corresponding to the first assembly hole.
[0007] In this invention, the base further includes a mounting portion disposed on the rear side of the first plate, the mounting portion being used for assembly with a metal mechanical property testing machine.
[0008] This invention also includes a metal tube corresponding to the first assembly hole, the length of which is the same as the length of the first assembly hole.
[0009] This utility model also includes a bolt and a nut used in conjunction with the bolt, wherein the bolt passes through a metal tube and is threadedly connected to the nut.
[0010] In this invention, the nut is placed inside the operating hole.
[0011] In this invention, the bolt head is located inside.
[0012] This utility model has the following beneficial effects:
[0013] 1. This utility model adopts a split structure design, which can adapt to metal samples with different shapes by simply changing the clamps, greatly enhancing the versatility and flexibility of the clamps and reducing the need for different clamping blocks.
[0014] 2. The present invention simplifies the process of replacing the fixture compared to replacing the entire clamping block, allowing operators to make quick adjustments, reducing operation time and improving work efficiency. At the same time, since only the fixture needs to be replaced instead of the entire clamping block, the types and quantities of spare parts are reduced, thereby lowering material costs and inventory management costs.
[0015] 3. The ability of this utility model to quickly change fixtures greatly reduces downtime when testing metal samples of various shapes, thereby improving overall testing efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the exploded structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the base structure of this utility model;
[0019] Figure 4 This is one of the schematic diagrams of the clamp structure of this utility model;
[0020] Figure 5 This is the second schematic diagram of the clamp structure of this utility model;
[0021] Figure 6 This is a schematic diagram of the structure of the present invention in use.
[0022] In the figure: 1. Base; 101. First plate; 102. Mounting part; 103. Assembly groove; 104. Operating hole; 105. First assembly hole; 2. Metal pipe; 3. Bolt; 4. Nut; 5. Clamp; 501. Second plate; 502. Clamping part; 503. Locking part; 504. Assembly plate; 505. Second assembly hole. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Reference Figure 1-6 A metal mechanical property testing machine fixture includes a base 1, which includes a first plate 101. The front side of the first plate 101 has an assembly groove 103, and both the left and right sides of the first plate 101 have operating holes 104. The bottom edge of the operating holes 104 has a first assembly hole 105 that penetrates the left and right sides of the first plate 101. The fixture 5 includes a second plate 501. The front side of the second plate 501 has a rearwardly recessed clamping part 502 and a locking part 503 located below the clamping part 502. The rear side of the second plate 501 has an assembly plate 504 corresponding to the assembly groove 103. The assembly plate 504 has a second assembly hole 505 corresponding to the first assembly hole 105.
[0025] In this embodiment, the first plate 101 of the base 1 serves as the basic structure of the entire fixture, providing a stable support platform to ensure the accurate installation and operation of the fixture 5. The first plate 101, through its robust structural design, provides sufficient load-bearing capacity, enabling stable support of the fixture and sample during testing. The assembly slot 103 mates with the assembly plate 504 of the fixture 5 to achieve the installation of the fixture 5. The assembly slot 103, in conjunction with the assembly plate 504, ensures that the fixture 5 can be precisely aligned and fixed on the base 1, reducing installation errors. The operating holes 104 provide operating space, facilitating the installation, adjustment, and disassembly of the fixture by the operator. The operating holes 104 are located on the left and right sides of the first plate 101, allowing tools to operate through these holes, improving operational convenience and reducing potential interference during operation. The first mounting hole 105 mates with the second mounting hole 505 of the fixture 5, and is used to fix the fixture 5 to the base 1 by means of bolts 3 or other fixing devices. The first mounting hole 105 penetrates the bottom edge of the operating hole 104, providing a connection channel between the fixture 5 and the base 1. By using bolts 3 to pass through these holes and fix them, it is ensured that the fixture 5 will not move during the test, providing a stable clamping environment. The second plate 501 of the fixture 5 serves as the main body of the fixture 5, including clamping and locking functions, and is responsible for clamping the metal sample. The second plate 501, through its structural design, ensures the functionality of the clamping part 502 and the locking part 503, providing stability for sample clamping. The clamping part 502 is the part used to actually clamp the metal sample. It is designed with a backward concave shape to adapt to and fix the sample. Through its backward concave design, the clamping part 502 can better surround and fix metal samples of different shapes, reducing the possibility of the sample sliding or twisting during the test, and ensuring the accuracy of the test. The locking part 503 is located below the clamping part 502 to lock the sample in place, preventing it from falling off during testing. The locking part 503 operates via threads, snaps, or other mechanical locking mechanisms, providing additional fixing force to ensure the sample does not detach from the fixture 5 during high-load testing. The mounting plate 504 mates with the mounting groove 103 of the base 1, ensuring the fixture can be accurately installed on the base 1. The mounting plate 504, through its engagement with the mounting groove 103, achieves precise alignment between the fixture 5 and the base 1, reducing installation errors and enhancing the stability of the entire system. The second mounting hole 505 mates with the first mounting hole 105 for fixing the fixture. The second mounting hole 505 allows the bolt 3 to pass through, forming a pair of mating fixing points with the first mounting hole 105.
[0026] In this utility model, the base 1 also includes a mounting part 102 disposed on the rear side of the first plate 101, the mounting part 102 being used for assembly with the metal mechanical property testing machine.
[0027] In this embodiment, the mounting part 102 of the base 1 is used to assemble the entire fixture with the metal mechanical property testing machine, ensuring that the fixture can be firmly installed on the testing machine. The mounting part 102 is located on the rear side of the first plate 101, and through its specific structural design, it cooperates with the corresponding parts of the metal mechanical property testing machine to provide a stable connection point. This design ensures that the fixture will not move due to the vibration of the testing machine or the force applied to the sample during the testing process, guaranteeing the accuracy and safety of the test. Through the mounting part 102, the fixture can form an integral part with the testing machine, achieving efficient and stable operation.
[0028] This invention also includes a metal tube 2 corresponding to the first mounting hole 105, the length of which is the same as the length of the first mounting hole 105.
[0029] In this embodiment, the metal tube 2 serves as a connector, working in conjunction with the first mounting hole 105 to fix the fixture 5 and the base 1, enhancing the strength and stability of the connection. The metal tube 2 has the same length as the first mounting hole 105, providing additional support and guidance when inserted into it. When the bolt 3 passes through the metal tube 2 and connects with the nut, the metal tube not only disperses the stress applied by the bolt 3, reducing stress concentration on the first plate 101, but also enhances the rigidity of the entire connection. Because the length of the metal tube 2 matches the first mounting hole 105, it ensures that the connection point between the fixture 5 and the base 1 can withstand the forces generated during testing, improving the overall stability and durability of the fixture.
[0030] This utility model also includes a bolt 3 and a nut 4 used in conjunction with the bolt 3. The bolt 3 passes through the metal tube 2 and is threadedly connected to the nut 4. The nut 4 is placed inside the operating hole 104, and the bolt head of the bolt 3 is placed inside the 104.
[0031] In this embodiment, bolt 3 is used to fix clamp 5 to base 1 through metal tube 2, providing a fastening force for the connection. Bolt 3 passes through metal tube 2 and, through threaded connection with nut 4, achieves a firm connection between clamp 5 and base 1. Bolt head is placed inside operating hole 104. This design reduces external protrusions, lowers the risk of accidental collisions during operation, and also reduces potential damage to bolt head due to exposure, enhancing operational safety. Nut 4 works in conjunction with bolt 3 to lock the connection, ensuring clamp 5 will not loosen during testing. Nut 4 is placed inside operating hole 104 and, through threaded connection with bolt 3, provides a fixing force between clamp 5 and base 1. This internal placement design not only enhances the stability of the connection but also further reduces potential safety hazards during operation by concealing nut 4. It also makes the entire structure look cleaner, improving the aesthetics and professionalism of the fixture.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A fixture for a metal mechanical property testing machine, characterized in that, Includes a base (1), the base (1) includes a first plate (101), the first plate (101) has an assembly groove (103) on the front side, and operation holes (104) are provided on both the left and right sides of the first plate (101). The bottom edge of the operation hole (104) has a first assembly hole (105) that penetrates the left and right sides of the first plate (101). The clamp (5) includes a second plate (501), the front side of the second plate (501) is provided with a rearwardly recessed clamping part (502) and a locking part (503) provided below the clamping part (502), the rear side of the second plate (501) is provided with an assembly plate (504) corresponding to the assembly groove (103), and the assembly plate (504) is provided with a second assembly hole (505) corresponding to the first assembly hole (105).
2. The fixture for a metal mechanical property testing machine according to claim 1, characterized in that, The base (1) also includes a mounting part (102) disposed on the rear side of the first plate (101), the mounting part (102) being used for assembly with the metal mechanical property testing machine.
3. The fixture for a metal mechanical property testing machine according to claim 1, characterized in that, It also includes a metal tube (2) corresponding to the first assembly hole (105), the length of which is the same as the length of the first assembly hole (105).
4. The fixture for a metal mechanical property testing machine according to claim 1, characterized in that, It also includes a bolt (3) and a nut (4) used in conjunction with the bolt (3), the bolt (3) passing through the metal tube (2) and being threadedly connected to the nut (4).
5. The fixture for a metal mechanical property testing machine according to claim 4, characterized in that, The nut (4) is placed inside the operating hole (104).
6. The fixture for a metal mechanical property testing machine according to claim 4, characterized in that, The bolt head of the bolt (3) is placed inside the operating hole (104).
Citation Information
Patent Citations
Clamp tool of metal mechanical property testing machine
CN219977967U