Hardness detection device for aluminum alloy hub casting

Abstract

The utility model relates to the technical field of casting detection, and discloses an aluminum alloy hub casting hardness detection device which comprises a base, a pressure applying table, a stand column, a top pressure arm, a pressure mechanism, a hub body, a bottom roller mechanism and a linkage rotating mechanism. The base is rotatably sleeved with the pressure applying table, the top end of the base and the stand column are installed through the middle of the pressure applying table, the jacking and pressing arm is installed on the side face of the stand column, the pressure mechanism is arranged on the jacking and pressing arm, the position of the pressure mechanism corresponds to the position of the bottom roller mechanism, and the bottom roller mechanism is arranged on the pressure applying table. The aluminum alloy hub casting hardness detection device solves the problems that a hub needs to bear the gravity of a vehicle to rotate, the rotating bearing force of the hub cannot be fully detected by directly applying pressure to a sample, so that certain omission exists in detection, and the hardness of the hub is reduced to a certain extent in a long-time high-heat environment, so that the detection efficiency is improved. And the detection accuracy is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of casting detection, in particular to a hardness detection device for an aluminum alloy wheel hub casting. Background Art

[0002] The hardness of an aluminum alloy wheel hub refers to the wear resistance of the surface and interior of the wheel hub, as well as the ability to withstand pressure and vibration. The aluminum alloy wheel hub hardness standard is determined through hardness testing to evaluate the quality and performance of the aluminum alloy wheel hub, and it has an important impact on the design, manufacturing, and selection of aluminum alloy wheel hubs.

[0003] Aluminum alloy is formed by mixing aluminum with other alloying elements and has advantages such as light weight, corrosion resistance, and good thermal conductivity. Generally, aluminum alloy has a high melting point and oxidation resistance and is not easily melted or softened even when exposed to fire. However, in fact, fire will have varying degrees of impact on the mechanical properties and surface of aluminum alloy.

[0004] In the prior art, when detecting the hardness of an aluminum alloy wheel hub, generally, the specimen is placed on a steel plate or a press, and a predetermined load is pressed in. The test results should be averaged. However, the wheel hub itself needs to bear the gravity of the vehicle and rotate. Directly pressing the specimen cannot fully detect the rotational load-bearing capacity of the wheel hub, resulting in certain omissions in the detection. Moreover, in hot summer, due to the wheel hub being close to the ground, in a long-term high-temperature environment, the hardness of the wheel hub will decrease to a certain extent, and the change of the aluminum alloy is easily ignored in the detection of the wheel hub, affecting the accuracy of the detection. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a hardness detection device for an aluminum alloy wheel hub casting, which solves the problems mentioned in the above background.

[0006] The utility model provides the following technical solution: A hardness detection device for an aluminum alloy wheel hub casting, comprising: a base, a pressing table, a column, a top pressing arm, a pressure mechanism, a wheel hub body, a bottom roller mechanism, and a linkage mechanism;

[0007] The pressing table is rotatably sleeved on the base. The top of the base is installed with the column through the middle of the pressing table. The top pressing arm is installed on the side of the column. The pressure mechanism is arranged on the top pressing arm, and the position of the pressure mechanism corresponds to the position of the bottom roller mechanism. The bottom roller mechanism is arranged on the pressing table;

[0008] Wherein, the linkage mechanism is arranged on the base, and the pressing table is unidirectionally linked with the linkage mechanism. The wheel hub body is installed on the side of the pressure mechanism near the bottom, and the wheel hub body is in contact with the bottom roller mechanism.

[0009] Preferably, a reinforcing frame is installed at the top of the pressing arm, and one side of the reinforcing frame close to the top end is installed on the column.

[0010] Preferably, the pressing platform includes a platform panel, and a riser pipe is integrally arranged at the bottom of the platform panel. The riser pipe is rotatably sleeved on the base, and a reinforcing plate is welded at the included angle between the platform panel and the riser pipe.

[0011] Preferably, an annular slide rail is installed at the bottom of the pressing platform, and the pressing platform is rotatably arranged on the base through the annular slide rail.

[0012] Preferably, the linkage mechanism includes a worm gear, and the worm gear is sleeved on the pressing platform. A worm is engaged with the outer edge of the worm gear. The two ends of the worm are respectively supported on the base through the provided supports, and a third motor is installed at the end of the worm. The third motor is installed on the base.

[0013] Preferably, the bottom roller mechanism includes three bottom frame shells, and the three bottom frame shells are evenly arranged on the pressing platform. A hot pressing roller, a spherical roller and a flat roller are respectively arranged in the three bottom frame shells. The end parts of the rotating shafts of the hot pressing roller, the spherical roller and the flat roller are all installed with second motors, and the second motors are installed on the pressing platform. Heating pipes are inlaid on the side surfaces of the bottom frame shells.

[0014] Preferably, the pressing arm includes an outstretched arm, and a first motor is installed at the end of the outstretched arm. A lead screw is installed on the output shaft of the first motor. A slide bar is installed on the outstretched arm, and a fixed moving block is slidably connected to the slide bar. The fixed moving block is screwed to the lead screw, and the pressure mechanism is installed on the fixed moving block.

[0015] Preferably, the pressure mechanism includes a pressure sensing mechanism, and the pressure sensing mechanism is installed below the pressing arm. A hydraulic cylinder is installed at the bottom end of the pressure sensing mechanism. A pressure arm is installed on the piston rod of the hydraulic cylinder, and the hub body is screwed on the side surface of the pressure arm.

[0016] Preferably, an annular pressing rail is installed on the pressing platform, and the annular pressing rail is located on the moving track of the pressing arm.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. For this aluminum alloy wheel casting hardness detection device, by setting the bottom roller mechanism and the pressure mechanism, the hub body is subjected to rolling pressure, so as to simulate the use state of the hub body, make the hub body bear targeted pressing conditions, and then detect it, so as to fully detect the rotational bearing strength of the hub body and improve the detection effect.

[0019] 2. The hardness detection device for the aluminum alloy wheel hub casting simulates the pressing forces in different states faced by the wheel hub body by setting different mechanisms within the bottom roller mechanism, conforms to the pressing conditions faced during the use of the wheel hub body, increases the detection range, improves the authenticity of detection, displays in detail the changes in the aluminum alloy during the detection of the wheel hub body, and improves the accuracy of detection. Brief Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 It is a schematic sectional view of the structure of the present utility model;

[0022] Figure 3 It is a schematic top view of the sectional structure at the linkage mechanism of the present utility model;

[0023] Figure 4 It is a schematic diagram of the base structure of the present utility model;

[0024] Figure 5 It is a schematic diagram of the pressure application platform structure of the present utility model;

[0025] Figure 6 It is a schematic bottom view of the pressure application platform of the present utility model;

[0026] Figure 7 It is a schematic disassembled structure diagram of the top pressing arm of the present utility model.

[0027] In the figure: 1. Base; 2. Pressure application platform; 21. Table panel; 22. Vertical pipe; 23. Reinforcing plate; 3. Column; 4. Top pressing arm; 41. Outer expanding arm; 42. Slide bar; 43. Lead screw; 44. First motor; 45. Fixed moving block; 5. Pressure mechanism; 51. Pressure sensing mechanism; 52. Hydraulic cylinder; 53. Pressure arm; 6. Wheel hub body; 7. Bottom roller mechanism; 71. Hot pressing roller; 72. Spherical roller; 73. Flat roller; 74. Bottom frame shell; 75. Second motor; 76. Heating pipe; 8. Linkage mechanism; 81. Worm gear; 82. Worm; 83. Support; 84. Third motor; 9. Reinforcing frame; 10. Annular slide rail; 11. Annular pressing rail. Detailed Embodiment

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figures 1-7, an aluminum alloy wheel hub casting hardness detection device, comprising: a base 1, a pressing table 2, a column 3, a top pressing arm 4, a pressure mechanism 5, a wheel hub body 6, a bottom roller mechanism 7 and a linkage mechanism 8;

[0030] The pressing table 2 is rotatably sleeved on the base 1. The top end of the base 1 is installed with the column 3 through the middle of the pressing table 2. The top pressing arm 4 is installed on the side of the column 3. The pressure mechanism 5 is arranged on the top pressing arm 4, and the position of the pressure mechanism 5 corresponds to the position of the bottom roller mechanism 7. The bottom roller mechanism 7 is arranged on the pressing table 2;

[0031] Among them, the linkage mechanism 8 is arranged on the base 1, and the pressing table 2 is unidirectionally linked with the linkage mechanism 8. The wheel hub body 6 is installed on the side of the pressure mechanism 5 near the bottom end, and the wheel hub body 6 contacts the bottom roller mechanism 7.

[0032] Among them, a strengthening frame 9 is installed at the top of the top pressing arm 4. One side of the strengthening frame 9 near the top end is installed on the column 3. By installing the strengthening frame 9, the load-bearing capacity of the top pressing arm 4 is increased, and the situation that the top pressing arm 4 deforms under long-term pressure is avoided, thereby improving the service life of the device.

[0033] Among them, the pressing table 2 includes a table top plate 21. A vertical pipe 22 is integrally arranged at the bottom of the table top plate 21. The vertical pipe 22 is rotatably sleeved on the base 1. A strengthening plate 23 is welded at the included angle between the table top plate 21 and the vertical pipe 22. By setting the pressing table 2 to bear the covering surface when pressing the wheel hub body 6, the structure in contact with the lower part of the wheel hub body 6 has sufficient firmness, so as to simulate the pressure on the wheel hub body 6.

[0034] Among them, an annular slide rail 10 is installed at the bottom of the pressing table 2. The pressing table 2 is rotatably arranged on the base 1 through the annular slide rail 10. By setting the annular slide rail 10 to bear the pressing table 2 and the pressing force it receives, and reducing the friction force on the contact surface between the pressing table 2 and the base 1, the pressing table 2 can still have the rotation ability under the condition of bearing a large pressure.

[0035] Among them, the linkage mechanism 8 includes a worm gear 81. The worm gear 81 is sleeved on the pressing table 2. A worm 82 is meshed with the outer edge of the worm gear 81. The two ends of the worm 82 are respectively erected on the base 1 through the provided supports 83. A third motor 84 is installed at the end of the worm 82. The third motor 84 is installed on the base 1. By using the operation of the linkage mechanism 8 to drive the pressing table 2 to rotate, the bottom roller mechanism 7 on the pressing table 2 can fully contact the wheel hub body 6 to be detected, and detect the pressing situation of the wheel hub body 6 facing different contact surfaces.

[0036] Among them, the bottom roller mechanism 7 includes three chassis shells 74 which are evenly arranged on the pressing table 2. A hot pressing roller 71, a spherical roller 72 and a flat roller 73 are respectively arranged in the three chassis shells 74. The end parts of the rotating shafts of the hot pressing roller 71, the spherical roller 72 and the flat roller 73 are all installed with a second motor 75. The second motor 75 is installed on the pressing table 2. A heating pipe 76 is inlaid on the side surface of the chassis shell 74. By setting the hot pressing roller 71, the spherical roller 72 and the flat roller 73, the pressing conditions of the hub body 6 facing different contact surfaces are simulated, the detection range of the hub body 6 is increased, and the authenticity of the detection is improved.

[0037] Among them, the top pressing arm 4 includes an outstretched arm 41. A first motor 44 is installed at the end of the outstretched arm 41. A lead screw 43 is installed on the output shaft of the first motor 44. A slide bar 42 is installed on the outstretched arm 41. A fixed moving block 45 is slidably connected to the slide bar 42. The fixed moving block 45 is screwed to the lead screw 43. The pressure mechanism 5 is installed on the fixed moving block 45. The pressing position of the hub body 6 is adjusted by using the top pressing arm 4, so that the hub body 6 can be aligned with the pressing of the bottom roller mechanism 7, and the comprehensiveness of the force on the hub body 6 is improved.

[0038] Among them, the pressure mechanism 5 includes a pressure sensing mechanism 51. The pressure sensing mechanism 51 is installed below the top pressing arm 4. A hydraulic cylinder 52 is installed at the bottom end of the pressure sensing mechanism 51. A pressure arm 53 is installed on the piston rod of the hydraulic cylinder 52. The hub body 6 is rotatably connected to the side surface of the pressure arm 53. The hub body 6 is suspended by using the pressure mechanism 5, and at the same time has the function of pressing the hub body 6, and the hardness detection result of the hub body 6 is reflected.

[0039] Among them, an annular pressing rail 11 is installed on the pressing table 2. The annular pressing rail 11 is located on the moving track of the top pressing arm 4. By setting the annular pressing rail 11, the hub body 6 can be moved to the annular pressing rail 11 for pressing by using the top pressing arm 4 and the pressure mechanism 5. At this time, the rotation mechanism 8 is started to rotate the pressing table 2, and the pressing condition of the hub body 6 when the vehicle turns can be simulated, further increasing the detection range of the hardness of the hub body 6.

[0040] Working principle: When detecting the hardness of the hub body 6, first install the hub body 6 on the pressure mechanism 5, use the top pressing arm 4 to move the position of the pressure mechanism 5, so that the hub body 6 is moved above the bottom roller mechanism 7, then use the pressure mechanism 5 to press the hub body 6, and then control the bottom roller mechanism 7 to rotate to detect the running hardness of the hub body 6. Subsequently, use the rotation mechanism 8 to drive the pressing table 2 to rotate, and replace different contact conditions to press the hub body 6;

[0041] After the inspection of the hub body 6 is completed by using the bottom roller mechanism 7, the position of the pressure mechanism 5 is moved by using the top pressure arm 4 to move the hub body 6 above the annular pressure rail 11, and then the rotation mechanism 8 is used to drive the pressure platform 2 to rotate to detect the hardness of the hub body 6 when the vehicle turns.

[0042] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aluminum alloy wheel hub casting hardness detection device, characterized in that, Comprising: a base (1), a pressing table (2), a column (3), a pressing arm (4), a pressure mechanism (5), a hub body (6), a bottom roller mechanism (7) and a co-rotation mechanism (8); The pressing table (2) is rotatably sleeved on the base (1), the top end of the base (1) is installed with the column (3) via the middle part of the pressing table (2), the pressing arm (4) is installed on the side of the column (3), the pressure mechanism (5) is arranged on the pressing arm (4), and the position of the pressure mechanism (5) corresponds to the position of the bottom roller mechanism (7), and the bottom roller mechanism (7) is arranged on the pressing table (2); Wherein, the co-rotation mechanism (8) is arranged on the base (1), and the pressing table (2) is unidirectionally linked with the co-rotation mechanism (8), the hub body (6) is installed on the side of the pressure mechanism (5) close to the bottom end, and the hub body (6) contacts the bottom roller mechanism (7).

2. The hardness detection device for an aluminum alloy wheel hub casting according to claim 1, wherein A reinforcing frame (9) is installed at the top of the pressing arm (4), and one side of the reinforcing frame (9) close to the top end is installed on the column (3).

3. The hardness detection device for an aluminum alloy wheel hub casting according to claim 1, characterized in that, The pressing table (2) includes a table top plate (21), a vertical pipe (22) is integrally arranged at the bottom of the table top plate (21), the vertical pipe (22) is rotatably sleeved on the base (1), and a reinforcing plate (23) is welded at the included angle between the table top plate (21) and the vertical pipe (22).

4. The hardness detection device for an aluminum alloy wheel hub casting according to claim 1, characterized in that, An annular slide rail (10) is installed at the bottom of the pressing table (2), and the pressing table (2) is rotatably arranged on the base (1) through the annular slide rail (10).

5. The hardness detection device for an aluminum alloy wheel hub casting according to claim 1, wherein, The co-rotation mechanism (8) includes a worm gear (81), the worm gear (81) is sleeved on the pressing table (2), a worm (82) is engaged with the outer edge of the worm gear (81), both ends of the worm (82) are respectively erected on the base (1) through arranged supports (83), a third motor (84) is installed at the end of the worm (82), and the third motor (84) is installed on the base (1).

6. The hardness detection device for an aluminum alloy wheel hub casting according to claim 1, characterized in that, The bottom roller mechanism (7) includes three bottom frame shells (74), the three bottom frame shells (74) are evenly arranged on the pressing table (2), a hot pressing roller (71), a spherical roller (72) and a flat roller (73) are respectively arranged in the three bottom frame shells (74), second motors (75) are installed at the end parts of the rotating shafts of the hot pressing roller (71), the spherical roller (72) and the flat roller (73), the second motors (75) are installed on the pressing table (2), and heating tubes (76) are embedded on the side surfaces of the bottom frame shells (74).

7. An aluminum alloy wheel casting hardness detection device according to claim 1, characterized in that, The pressing arm (4) includes an outstretched arm (41), a first motor (44) is installed at the end of the outstretched arm (41), a lead screw (43) is installed on the output shaft of the first motor (44), a slide bar (42) is installed on the outstretched arm (41), a fixed moving block (45) is slidably connected to the slide bar (42), the fixed moving block (45) is screwed with the lead screw (43), and the pressure mechanism (5) is installed on the fixed moving block (45).

8. The hardness detection device for an aluminum alloy wheel hub casting according to claim 1, characterized in that, The pressure mechanism (5) includes a pressure sensing mechanism (51), the pressure sensing mechanism (51) is installed below the top pressing arm (4), a hydraulic cylinder (52) is installed at the bottom end of the pressure sensing mechanism (51), a pressure arm (53) is installed on the piston rod of the hydraulic cylinder (52), and the hub body (6) is screwed on the side surface of the pressure arm (53).

9. The hardness detection device for an aluminum alloy wheel hub casting according to claim 1, wherein An annular pressure rail (11) is installed on the pressure application table (2), and the annular pressure rail (11) is located on the moving track of the top pressing arm (4).

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