A powder metallurgy part strength testing apparatus

Abstract

This invention discloses a powder metallurgy part strength testing device, specifically relating to the technical field of powder metallurgy testing equipment. It includes a test chamber, the interior of which is equipped with a fixing mechanism for preventing suspension and adapting to fixing metallurgy parts of different specifications. A protective mechanism is fitted to the side of the test chamber to prevent fragile metallurgy parts from splashing out of the chamber. A connecting column is provided at the telescopic end of each second cylinder, and a third cylinder is provided at the side end of each connecting column. A fixing plate is provided at the telescopic end of each third cylinder. This powder metallurgy part strength testing device improves upon traditional methods by utilizing additional structures to enhance the clamping stability and specification adaptability of traditional devices. This significantly improves the repeatability and accuracy of test data while simultaneously enhancing the device's versatility and testing efficiency.

Description

Technical Field

[0001] This invention relates to the field of powder metallurgy testing equipment technology, and in particular to a powder metallurgy strength testing device. Background Technology

[0002] The powder metallurgy strength testing device evaluates the compressive strength index by applying pressure, ensuring the reliability of the product in practical applications. The workpiece to be tested is placed in the test chamber, and the first cylinder drives the extrusion head to press down on the workpiece. The stress sensor detects the extrusion force in real time.

[0003] However, existing powder metallurgy part strength testing devices have the following shortcomings: Traditional powder metallurgy strength testing devices, some of which use suspended fixing of the metallurgical parts, result in disordered distribution of compressive loads on the metallurgical parts, large deviations in stress test data, and cannot truly reflect the actual compressive strength of the metallurgical parts. Summary of the Invention

[0004] The main objective of this invention is to provide a powder metallurgy strength testing device that can effectively solve the problem that some traditional powder metallurgy strength testing devices, which use suspended and fixed metallurgy parts, cannot truly reflect the actual compressive strength of the metallurgy parts.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A powder metallurgy strength testing device includes a test chamber, inside which a strength testing component is installed, and inside the test chamber is a fixing mechanism for preventing suspension and adapting to fixing metallurgical parts of different specifications. The test chamber is equipped with a protective mechanism on its side to prevent fragile metal parts from splashing out of the test chamber.

[0006] Preferably, the fixing mechanism includes two second cylinders, each second cylinder has a connecting column at its telescopic end, each connecting column has a third cylinder at its side end, and each third cylinder has a fixing plate at its telescopic end.

[0007] Preferably, each fixed plate is provided with an anti-slip plate on its side.

[0008] Preferably, the strength testing component includes a first cylinder, a stress sensor is provided at the telescopic end of the first cylinder, and a compression head is provided at the side end of the stress sensor.

[0009] Preferably, the protective mechanism includes a protective door, a column is provided on the side of the protective door, a locking block is provided on the side of the column, the locking block is composed of a block plate and a silicone pad to enhance the contact friction between it and the test box, a block groove is provided on the side of the test box, and a column groove is provided on the side of the test box.

[0010] Preferably, the column groove is located on the rear side of the block groove, the thickness of the column groove is the width of the block, and the block groove is adapted to the movement of the block.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a fixing mechanism, the metallurgical parts are fixed in place to prevent them from being suspended, and the mechanism is adapted to fix metallurgical parts of different specifications. The mechanism adopts the mechanical transmission principle, which improves the traditional powder metallurgy strength testing device. The additional structure improves the clamping stability and specification adaptability of the traditional powder metallurgy strength testing device, which significantly improves the repeatability and accuracy of test data, while improving the equipment's versatility and testing efficiency.

[0012] 2. By setting up a protective mechanism, the linkage between structural components such as protective doors, pillars, and clamps can improve testing safety and prevent injuries from fragments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a perspective view of the overall structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged 3D view of part A in the middle; Figure 4 This is a three-dimensional cross-sectional view of the test box of the present invention; Figure 5 For the present invention Figure 2 Enlarged 3D view of part B.

[0014] In the diagram: 1. Test chamber; 2. Strength testing component; 21. First cylinder; 22. Stress sensor; 23. Extrusion head; 3. Fixing mechanism; 31. Second cylinder; 32. Connecting column; 33. Third cylinder; 34. Fixing plate; 35. Anti-slip plate; 4. Protective mechanism; 41. Protective door; 42. Column; 43. Locking block; 44. Block groove; 45. Column groove. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0016] like Figure 1 -Appendix Figure 5As shown, a powder metallurgy strength testing device includes a test chamber 1, a strength testing component 2 inside the test chamber 1, and a fixing mechanism 3 inside the test chamber 1 for preventing suspension and for fixing metallurgical parts of different specifications. A protective mechanism 4 is installed on the side of the test chamber 1 to prevent fragile metallurgical parts from splashing out of the test chamber 1. The fixing mechanism 3 includes two second cylinders 31, each second cylinder 31 has a connecting column 32 at its telescopic end, each connecting column 32 has a third cylinder 33 at its side end, each third cylinder 33 has a fixing plate 34 at its telescopic end, and each fixing plate 34 has an anti-slip plate 35 at its side end. The strength testing component 2 includes a first cylinder 21, the first cylinder 21 has a stress sensor 22 at its telescopic end, and the stress sensor 22 has a pressing head 23 at its side end.

[0017] The overall effect of Embodiment 1 is as follows: the relevant components can improve the clamping stability and specification adaptability of the traditional powder metallurgy strength testing device through mechanical transmission. The function of setting the anti-slip plate 35 is to enhance the friction during fixation, prevent the metallurgical parts from slipping or rotating during the test, and ensure the accuracy of test data and operational safety. This mechanical transmission method significantly improves the repeatability and accuracy of test data, while enhancing the equipment's versatility and testing efficiency.

[0018] Example 2, as Figures 1-5 As shown, the protective mechanism 4 includes a protective door 41, a column rod 42 is provided on the side end of the protective door 41, a locking block 43 is provided on the side end of the column rod 42, a block groove 44 is provided on the side end of the test box 1, and a column groove 45 is provided on the side end of the test box 1. The column groove 45 is located behind the block groove 44, and the thickness of the column groove 45 is the width of the locking block 43. The block groove 44 is adapted to the movement of the locking block 43.

[0019] The overall effect of embodiment 2 is as follows: by setting up the protective mechanism 4, and through the linkage between structural components such as the protective door 41, the column 42, and the locking block 43, the safety of the test is improved and the injury caused by fragments is prevented.

[0020] The operator first activates the protective mechanism 4 on the side of the test chamber 1. The protective door 41 of this mechanism 4 is a transparent door. The operator first rotates the column rod 42, and the locking block 43 rotates inside the column groove 45. When the locking block 43 rotates to the matching block groove 44, it moves out from inside the block groove 44. Then, the transparent protective door 41 is pulled to open the internal space of the test chamber 1. The metallurgical part is then placed stably inside the test chamber 1. At the same time, two sets of second cylinders 31 are activated. The two sets of second cylinders 31 extend and retract synchronously, driving the connecting column 32 to move laterally. After the spacing is adjusted, the third cylinder 33 drives the extension end to advance, causing the fixing plates 34 to move closer to each other, so that the anti-slip plate 35 on the inner side of the fixing plate 34 tightly fits the outer walls of both sides of the metallurgical part, and the workpiece is completely positioned and fixed. After setting, the transparent protective door 41 is closed, and the locking block 43 moves from the inside of the block groove 44 into the inside of the column groove 45. The column rod 42 is rotated, and the locking block 43 and the block groove 44 are misaligned. Then, the strength testing component 2 is activated, and the first cylinder 21 extends downward at a constant speed, driving the stress sensor 22 and the extrusion head 23 to move downward synchronously. During the test, the stress sensor 22 senses the extrusion load, stress change and other test data in real time. The stress sensor 22 is electrically connected to the external control terminal and can transmit the test index to the computer display screen in real time. After the test is completed, the first cylinder 21 is reset and raised, and the third cylinder 33 and the second cylinder 31 retract in sequence to release the clamp. The operator opens the transparent protective door 41 and removes the tested workpiece.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A powder metallurgy strength testing device, comprising a test chamber (1), wherein a strength testing component (2) is disposed inside the test chamber (1), characterized in that: The test box (1) is equipped with a fixing mechanism (3) for preventing suspension and for fixing metallurgical parts of different specifications. The test chamber (1) is equipped with a protective mechanism (4) on its side, which is used to prevent fragile metal parts from splashing out of the test chamber (1).

2. The powder metallurgy strength testing device according to claim 1, characterized in that: The fixing mechanism (3) includes two second cylinders (31), each second cylinder (31) has a connecting column (32) at its telescopic end, each connecting column (32) has a third cylinder (33) at its side end, and each third cylinder (33) has a fixing plate (34) at its telescopic end.

3. The powder metallurgy parts strength testing device according to claim 2, characterized in that: Each of the fixed plates (34) is provided with an anti-slip plate (35) on its side end.

4. The powder metallurgy parts strength testing device according to claim 1, characterized in that: The strength testing component (2) includes a first cylinder (21), a stress sensor (22) is provided at the telescopic end of the first cylinder (21), and a compression head (23) is provided at the side end of the stress sensor (22).

5. The powder metallurgy strength testing device according to claim 1, characterized in that: The protective mechanism (4) includes a protective door (41), a column (42) is provided on the side of the protective door (41), a locking block (43) is provided on the side of the column (42), a block groove (44) is provided on the side of the test box (1), and a column groove (45) is provided on the side of the test box (1).

6. The powder metallurgy part strength testing device according to claim 5, characterized in that: The column groove (45) is located on the rear side of the block groove (44), the thickness of the column groove (45) is the width of the locking block (43), and the block groove (44) is adapted to the movement of the locking block (43).

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