Powder metallurgy powder compact pulling-supporting-pulling testing machine

Abstract

The utility model discloses a powder metallurgy powder compact pulling-supporting-pulling testing machine, which relates to the technical field of powder metallurgy and comprises a box body, a control panel arranged on the box body, a controller and a motor which are arranged in the box body, and a testing cylinder fixedly arranged on the motor, and the control panel and the motor are electrically connected with the controller. The test cylinder comprises a first mounting plate, a second mounting plate, a screw rod, a nut, a metal mesh cage and a connecting piece, the metal mesh cage is mounted between the first mounting plate and the second mounting plate, the connecting piece is fixedly connected to the middle of the second mounting plate and arranged on the motor through a coupler, and a plurality of connecting holes are uniformly formed in the first mounting plate and the second mounting plate in the circumferential direction; the multiple screws are correspondingly arranged at the multiple connecting holes, and nuts are arranged at the two ends of each screw in a matched mode. According to the utility model, the metal mesh cage can be conveniently disassembled, and materials can be quickly unloaded and discharged when a pulling test is carried out on multiple batches of powder pressing blanks, so that the working efficiency of testers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder metallurgy, in particular to a powder metallurgy powder compact pulling and testing machine. Background Art

[0002] A powder metallurgy powder compact pull tester uses a specific testing method to perform a pull test on cold-pressed powder compacts. During the test, the compact is placed within a testing apparatus. A motor drives a cylindrical cage made of wire mesh to rotate, causing friction and collision between the compact, the cage, and the compact. The weight loss of the sample at a fixed rotational speed is then determined. This method is primarily used to evaluate the mechanical properties of metal powder compacts, particularly their wear resistance, impact resistance at corners, tensile strength, and elongation. This testing machine is a crucial step in quality control during the production of metal powder products, ensuring that the products meet predetermined mechanical property requirements.

[0003] A commercially available powder metallurgy tester, model FYLTL-87, met the test requirements, but its simple design made it difficult to disassemble and replace the cage. After each test, the cage had to be disassembled, the powder compacts removed, and another batch of powder compacts placed in it, followed by the cage installation. This cumbersome process affected the experimenter's work efficiency. Therefore, it was necessary to develop a powder metallurgy tester that facilitated the disassembly of the test cage and the placement of the powder compacts, thereby improving the experimenter's work efficiency. Utility Model Content

[0004] In view of the above shortcomings, the utility model provides a powder metallurgy powder compact pulling and pulling testing machine, which can easily disassemble and replace the metal mesh cage, and can quickly unload and discharge materials when conducting pulling and pulling tests on multiple batches of powder compacts, thereby improving the work efficiency of the test personnel.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A powder metallurgy powder compact pulling and pulling testing machine includes a box body, a control panel arranged on the box body, a controller and a motor installed in the box body, the control panel and the motor are electrically connected to the controller, and also includes a test cylinder and a coupling. The test cylinder includes a first mounting plate, a second mounting plate, a screw, a nut, a metal mesh cage and a connecting piece. The metal mesh cage is detachably mounted between the first mounting plate and the second mounting plate. The connecting piece is fixed to the middle part of the second mounting plate and is arranged on the motor through a coupling. A plurality of connecting holes are evenly arranged circumferentially on the first mounting plate and the second mounting plate. There are multiple screws, which are correspondingly arranged at the plurality of connecting holes. Nuts are arranged at both ends of the screw. The first mounting plate and the second mounting plate are located between the nuts at both ends of the screw.

[0007] In some preferred embodiments, the device further includes a powder collecting cylinder, which is cylindrical with one end sealed, and the inner diameter of the cylinder is larger than the outer diameter of the first mounting plate and the second mounting plate, and the powder collecting cylinder is sleeved on the test cylinder.

[0008] In some preferred embodiments, the device also includes a buckle, there are multiple buckles, the buckle includes a lock buckle and a lock tongue, multiple lock tongues are evenly installed on the powder collection cylinder around the circumference, multiple lock buckles are evenly arranged on the second mounting plate around the circumference, and multiple lock buckles cooperate with multiple lock tongue locks to fix the powder collection cylinder on the test cylinder.

[0009] In some preferred embodiments, the controller in the device is a frequency converter, and the frequency converter model is US-5, 220V / 0.75KW.

[0010] In some preferred embodiments, the mesh size of the metal mesh cage in the device is 900-1500 μm.

[0011] In some preferred embodiments, the metal mesh cage in the device has a diameter of 70-110 mm and a length of 70-150 mm.

[0012] In some preferred embodiments, the motor in the device rotates at a speed of 80±10 r / min during the test.

[0013] In some preferred embodiments, a cover plate is provided on the upper portion of the box body in the device, a protrusion is provided on the upper portion of the box body, a groove is provided in the cover plate, and the cover plate is correspondingly installed at the protrusion on the upper portion of the box body.

[0014] In some preferred embodiments, the first curved support plate and the second curved support plate are made of materials with high resilience, so that the first curved support plate and the second curved support plate can adjust the corresponding curvature according to the size of the aluminum alloy coil.

[0015] In other preferred embodiments, the materials used for the first curved support plate and the second curved support plate are high-strength and non-deformable materials, and the first curved support plate and the second curved support plate are customized according to the size of the aluminum alloy coils to be stored so that the support plates maintain surface contact with the aluminum alloy coils.

[0016] In some preferred embodiments, the first mounting plate in the device is further provided with a lofting hole, which is circular and located at the center of the first mounting plate and coaxial with the metal mesh cage.

[0017] In some preferred embodiments, a buckle is provided on the cover plate of the device.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. The utility model improves the traditional test cylinder by providing two mounting plates, with the metal mesh cage installed between the two mounting plates. Multiple connecting holes are opened on the two mounting plates, and screws are used to connect the two mounting plates in series at the connecting holes. Nuts are used at both ends of the screws to fix the two mounting plates. This allows the utility model to quickly unload and discharge materials when conducting pull-pull tests on multiple batches of powder compacts, and facilitates the disassembly and replacement of the metal mesh cage, thereby improving the work efficiency of the test personnel.

[0020] 2. The powder collecting tube in the present invention is sleeved on the test tube and used in conjunction with the buckle to collect metal powder or debris generated during the experiment. On the one hand, it prevents the metal powder from causing air pollution and affecting the health of the experimenters. On the other hand, it also prevents the generated metal powder or debris from flying around and increasing the difficulty of cleaning for the experimenters. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a side view of the utility model;

[0024] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0025] Figure 4 This is a schematic structural diagram of the collecting tube of the present utility model;

[0026] Figure 5 It is a structural schematic diagram of the metal wire mesh cylindrical cage in the utility model.

[0027] Figure numerals: 1. Cover plate; 2. Box body; 3. Control panel; 4. Pull buckle; 5. Powder collection tube; 6. Lock tongue; 7. Lock buckle; 8. Motor; 9. Coupling; 10. Connector; 11. Controller; 12. First mounting plate; 13. Second mounting plate; 14. Screw; 15. Metal mesh cage; 16. Lofting hole; 17. Nut. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] like Figure 1-Figure 5 As shown, the present invention provides a powder metallurgy powder compact pulling and pulling tester (hereinafter referred to as the tester), which includes a square housing 2 with an upper opening, a control panel 3 fixedly mounted on the outer surface of the housing 2, a controller 11 mounted within the housing 2 and electrically connected to the control panel 3, a motor 8 bolted to the side of the housing 2 and electrically connected to the controller 11, and a test cylinder fixedly connected to the motor 8 via a coupling 9. During use, the tester is fully assembled, the metal powder compact to be tested is placed into the test cylinder, and the control panel 3 on the tester is operated to input a signal to the controller 11. The controller 11 then controls the motor 8 to rotate the wire mesh cylindrical cage containing the metal powder compact to be tested, completing the test.

[0032] In a preferred powder metallurgy powder compact pulling and pulling tester, the test cylinder includes a first mounting plate 12, a second mounting plate 13, a screw 14, a nut 17, a metal mesh cage 15 and a connecting piece 10. The first mounting plate 12 and the second mounting plate 13 are circular plates of the same size. The metal mesh cage 15 is detachably mounted between the first mounting plate 12 and the second mounting plate 13. The connecting piece 10 is fixed to the middle part of the second mounting plate 13 and is fixed to the drive shaft of the motor 8 through the coupling 9. Four connecting holes are provided on the first mounting plate 12 and the second mounting plate 13. The four connecting holes are evenly arranged circumferentially on the first mounting plate 12 and the second mounting plate 13. There are four screws 14, which are correspondingly arranged at the four connecting holes. The two ends of the screw 14 extend beyond the first mounting plate 12 and the second mounting plate 13. The part of the screw 14 that extends beyond the first mounting plate 12 and the second mounting plate 13 is cooperated with a nut 17. The nut 17 can be rotated to quickly disassemble the test cylinder to remove the tested metal powder compact or replace the metal mesh cage 15.

[0033] In a preferred powder metallurgy powder compact lathe testing machine, a lofting hole 16 is provided in the middle of the first mounting plate 12. The lofting hole 16 is circular and located in the center of the first mounting plate, coaxial with the metal mesh cage. The metal powder compact can be quickly placed into the metal mesh cage 15 through the lofting hole 16.

[0034] In a preferred powder metallurgy powder compacting latro-pulverizing tester, the metal mesh cage 15 is a cylindrical cage made of a bronze mesh with a mesh size of 900-1500 μm, preferably 1190 μm (14 mesh).

[0035] In a preferred powder metallurgy powder compacting lathe, the diameter of the metal mesh cage 15 is 70-110 mm, preferably 92 mm, and the length is 70-150 mm, preferably 114 mm.

[0036] In a preferred powder metallurgy powder compact lato-lato testing machine, the controller 11 is a frequency converter, model US-5 (220V / 0.75KW).

[0037] In a preferred powder metallurgy powder compact lato-lato testing machine, the motor 8 rotates at a speed of 80±10 r / min.

[0038] like Figure 1As shown, in a preferred powder metallurgy powder compact lato-lato testing machine, a powder collecting barrel 5 is also included. The powder collecting barrel 5 is a cylinder with an inner diameter larger than the outer diameter of the first mounting plate 12 and the second mounting plate 13 and closed at one end. Four locking tongues 6 are fixedly installed on one side of the cylinder opening. The four locking tongues 6 are evenly arranged along the circumference of the cylinder. Four lock buckles 7 are provided on the side of the second mounting plate 13 close to the box body 2. The four lock buckles 7 are evenly arranged along the circumference of the second mounting plate 13. The lock buckles 7 can cooperate with the lock tongues 6 to lock the powder collecting barrel 5 on the test barrel to collect metal powder or debris generated during the experiment to prevent metal powder from causing air pollution and affecting the health of the experimenters.

[0039] In a preferred powder metallurgy powder compact lato-lato testing machine, in order to reduce the damage to the motor 8 and the controller 11 caused by external factors, a cover plate 1 is provided on the upper part of the box body 2, a protrusion is provided on the upper part of the box body 2, and a groove is provided in the cover plate 1. The cover plate 1 is correspondingly installed at the protrusion on the upper part of the box body 2. The cover plate 1 also realizes the dustproof and waterproof functions, which can effectively prevent the parts in the box body 2 from being damaged by external factors.

[0040] In a preferred powder metallurgy powder compact pulling and pulling testing machine, a pull buckle 4 is further provided on the upper portion of the cover plate 1 , and the cover plate 1 can be disassembled more conveniently by pulling the pull buckle 4 .

[0041] A powder metallurgy powder compact lato-lato testing machine, Figure 1 The device is in the initial state. The usage steps are as follows:

[0042] S1: Select five cylindrical metal powder compact specimens and measure their diameter and height with a measuring tool accuracy of 0.02 mm. Weigh the five specimens under the same pressure to an accuracy of 0.01 g.

[0043] S2: Unlock the four lock buckles 7 installed on the second mounting plate 13, remove the powder collecting tube 5, put the five weighed samples into the test tube through the sample hole 16, and then put the powder collecting tube 5 back. The four lock buckles 7 are locked with the four lock tongues 6 on the powder collecting tube 5 to prevent the powder collecting tube 5 from falling.

[0044] S3: Operate the control panel 3 to input a signal to the controller 11, and the controller 11 controls the motor 8 to rotate at a speed of 80±10 r / min for 1000 revolutions.

[0045] S4: Remove the powder collecting tube 5 with the same steps as S2, unscrew the nut 17, remove the first mounting plate 12, take out the sample and weigh it to an accuracy of 0.01 g.

[0046] S5: Calculate the Lato-La value according to the following formula:

[0047] Where: W - Latola value (loss rate of sample before and after test), %;

[0048] A - mass before the experiment, g;

[0049] B - mass after test, g.

[0050] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A powder metallurgy powder compact pulling and testing machine, comprising a housing (2), a control panel (3) arranged on the housing (2), a controller (11) and a motor (8) installed in the housing (2), wherein the control panel (3) and the motor (8) are electrically connected to the controller (11), and characterized in that: The test cylinder also includes a test cylinder and a coupling (9), wherein the test cylinder includes a first mounting plate (12), a second mounting plate (13), a screw (14), a nut (17), a metal mesh cage (15) and a connector (10), wherein the metal mesh cage (15) is detachably mounted between the first mounting plate (12) and the second mounting plate (13), the connector (10) is fixed to the middle of the second mounting plate (13) and is arranged on the motor (8) through the coupling (9), a plurality of connection holes are uniformly arranged circumferentially on the first mounting plate (12) and the second mounting plate (13), a plurality of screws (14) are provided, and the screws (14) are correspondingly arranged at the plurality of connection holes, the nuts (17) are arranged at both ends of the screw (14), and the first mounting plate (12) and the second mounting plate (13) are located between the nuts (17) at both ends of the screw (14).

2. A powder metallurgy powder compact lato-pulling testing machine according to claim 1, characterized in that: The invention also includes a powder collecting cylinder (5), which is cylindrical with one end sealed. The inner diameter of the powder collecting cylinder (5) is larger than the outer diameters of the first mounting plate (12) and the second mounting plate (13), and the powder collecting cylinder (5) is sleeved on the test cylinder.

3. The powder metallurgy powder compact pulling and testing machine according to claim 2, characterized in that: The invention also includes a buckle, wherein the buckle is provided in plurality, and the buckle includes a lock buckle (7) and a lock tongue (6). The plurality of lock tongues (6) are circumferentially and evenly mounted on the powder collecting cylinder (5). The plurality of lock buckles (7) are circumferentially and evenly arranged on the second mounting plate (13). The plurality of lock buckles (7) and the plurality of lock tongues (6) are locked in cooperation to fix the powder collecting cylinder (5) on the test cylinder.

4. The powder metallurgy powder compact pulling and testing machine according to claim 1, characterized in that: The controller (11) is a frequency converter, and the frequency converter model is US-5, 220V / 0.75KW.

5. The powder metallurgy powder compact pulling and testing machine according to claim 1, characterized in that: The mesh size of the metal mesh cage (15) is 900-1500 μm.

6. The powder metallurgy powder compact pulling and testing machine according to claim 1, characterized in that: The metal mesh cage (15) has a diameter of 70-110 mm and a length of 70-150 mm.

7. The powder metallurgy powder compact pulling and testing machine according to claim 1, characterized in that: The motor (8) has a rotation speed of 80±10 r / min.

8. The powder metallurgy powder compact tensile testing machine according to claim 1, characterized in that: The upper portion of the box body (2) is provided with a cover plate (1), the upper portion of the box body (2) is provided with a protrusion, a groove is provided in the cover plate (1), and the cover plate (1) is correspondingly mounted on the protrusion on the upper portion of the box body (2).

9. The powder metallurgy powder compact pulling and testing machine according to claim 1, characterized in that: The first mounting plate (12) is provided with a lofting hole (16), which is circular and located at the center of the first mounting plate (12) and is coaxial with the metal mesh cage (15).

10. The powder metallurgy powder compact lato-pulling testing machine according to claim 8, characterized in that: A drawstring (4) is provided on the cover plate (1).

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