Axle heat treatment test system

Abstract

The utility model provides an axle heat treatment test system, which relates to a heat treatment test system and comprises a supporting seat and a rotating seat which are erected at the two ends of an axle, the rotating seat is used for driving the axle to rotate around the axis, and a cathode support unit and an anode support unit are further arranged on the two sides of the axle. The negative electrode support unit and the positive electrode support unit are controlled by respective driving units to do linear motion in the direction parallel to the axle center, the negative electrode support unit which is electrically heated adopts a flexible copper bar to be flexible so that the negative electrode support unit can be tightly attached to different positions of the axle, and the portion, making contact with the axle, of the positive electrode support unit which is electrically heated is a welding wheel. When the axle rotates, rolling friction is formed between the welding wheel and the surface of the axle, and the welding wheel can better adapt to axles of various shapes and various lengths.

Description

Technical Field

[0001] This utility model relates to a heat treatment testing system, and more particularly to a vehicle axle heat treatment testing system. Background Technology

[0002] The axle heat treatment testing system is a specialized equipment system for verifying and optimizing the performance of automotive axles during heat treatment. Its core function is to comprehensively test the microstructure, mechanical properties, and durability of axle materials by simulating different heat treatment process parameters (such as temperature, time, and cooling rate) to guide the optimized design of the heat treatment process. However, existing testing equipment and related processes for axle heat treatment may have the following shortcomings:

[0003] 1. Difficulty in adapting to axles of different shapes and lengths:

[0004] Traditional heat treatment equipment may be designed for axles of a specific shape or length, making it difficult to adapt to diverse product needs. This increases production costs and process complexity because different heat treatment equipment or processes need to be customized for different axle models.

[0005] 2. Difficulty in achieving localized heat treatment:

[0006] For complex parts such as axles, it is sometimes necessary to perform local heat treatment on specific areas to change their hardness and metallographic structure. However, traditional heat treatment equipment may not be able to achieve precise local heating, resulting in unsatisfactory heat treatment results. Utility Model Content

[0007] To address the aforementioned technical problems, the purpose of this utility model is to provide a vehicle axle heat treatment testing system that can adapt to vehicle axles of various shapes and lengths. It heats key locations on the axle by applying electricity, generating high temperatures that allow for heat treatment processes. This alters the hardness and metallographic structure of these locations, enabling different parts of the axle to meet specific hardness, strength, and stiffness requirements, thus achieving optimal performance and extending the axle's service life.

[0008] This utility model provides the following technical solution:

[0009] A vehicle axle heat treatment testing system includes support seats and rotating seats mounted at both ends of the axle. The rotating seats drive the axle to rotate around its axis. Negative and positive electrode support units are also arranged on both sides of the axle. These units are controlled by their respective drive units to move linearly in a direction parallel to the axle axis. The electrically heated negative electrode support unit uses flexible copper busbars to ensure close contact with different positions on the axle, preventing the risk of arcing due to loose connections. Different diameters and surface irregularities on the axle can ensure close contact with the negative electrode. The electrically heated positive electrode support unit has a welding wheel in contact with the axle. When the axle rotates, the welding wheel creates rolling friction with the axle surface, reducing friction and effectively preventing indentations. The contact between the welding wheel and the axle is achieved by a cylinder, and the contact force can be adjusted by regulating the air pressure.

[0010] Preferably, the support base includes a center point, a pointed sleeve, a bearing mounting sleeve, a bearing body, a support plate, and a front bracket. One axial end of the center point is provided with a conical block for extending into and pressing against the end port of the axle, and the other axial end of the center point is provided with a conical rod embedded in the pointed sleeve. The conical tips of the conical block and the conical rod are arranged opposite to each other, so that the pressing tightness when pressing against the axle is better, thereby improving the stability of the axle rotation drive. The pointed sleeve is sleeved outside the center point and disposed in the bearing body. The bearing body is disposed in the bearing mounting sleeve. The bearing mounting sleeve is fixedly mounted on the front bracket by the support plate.

[0011] Preferably, the front support and the support plate are slidably connected, and the front support is also provided with a top cylinder for pushing the support plate to move up and down in the Z direction.

[0012] Preferably, the front support is slidably mounted on a table, and a lead screw for driving the front support to reciprocate linearly in the X direction is also mounted on the table, and a rotating handwheel is provided at the end of the lead screw.

[0013] Preferably, the rotating seat and the support seat have the same structure, and a rotary motor is also installed on the bearing mounting sleeve of the rotating seat through a connecting plate. The drive end of the rotary motor is connected to the center sleeve through a coupling. Thus, after the rotary motor shaft rotates, it can drive the axle housing to rotate.

[0014] Preferably, the negative electrode support unit includes a movable frame driven by a corresponding drive unit, a negative electrode fixing seat slidably mounted on the movable frame, and a cylinder for driving the negative electrode fixing seat to move along the Y direction. A set of copper busbar fixing frames is also installed on the negative electrode fixing seat. The flexible copper busbar is fixed at both ends of the U-shape of the copper busbar fixing frame and forms a concave arc surface into the U-shaped opening of the copper busbar fixing frame under the push of the cylinder to fit tightly against the surface of the axle.

[0015] Preferably, the positive electrode support unit includes a movable frame II driven by a corresponding drive unit, a positive electrode fixing seat slidably mounted on the movable frame II, and a cylinder II for driving the positive electrode fixing seat to move along the Y direction. A set of wheel brackets is also mounted on the positive electrode fixing seat, and the welding wheel is mounted on the wheel brackets and moves toward the axle surface under the push of the cylinder II to form a roller contact with the axle surface.

[0016] Preferably, the drive unit includes a linear guide rail and a rack mounted on the table extending in the X direction. A drive motor is mounted on the first and second movable frames. The drive end of the drive motor meshes with the rack through a gear. When the drive motor rotates, it can drive the gear to rotate. The gear can move linearly along the rack, thereby driving the negative pole support unit and the positive pole support unit as a whole to move in the X direction.

[0017] The beneficial effects of this utility model are:

[0018] 1. The present invention provides a vehicle axle heat treatment test system that can adapt to vehicle axles of different lengths and shapes;

[0019] 2. The support base can be moved back and forth by rotating the handwheel, so as to be freely adjusted according to the length of the axle;

[0020] 3. The swivel seat allows the axle to rotate, and the swivel seat can be moved back and forth by rotating the handwheel, so as to be freely adjusted according to the length of the axle;

[0021] 4. The electrically heated negative electrode support unit adopts a flexible copper busbar connection structure, which can be tightly attached to different positions of the axle to prevent the risk of arcing due to loose connection. Different diameters of different positions of the axle and unevenness of the axle surface can all make close contact with the negative electrode.

[0022] 5. The part of the positive electrode support unit that is heated by electricity that contacts the axle is a roller. After the axle rotates, the roller will rotate on its own after contacting the axle surface, which can reduce the friction with the axle surface and effectively avoid indentation on the axle surface. The contact between the roller and the axle is achieved by a cylinder, and the contact force can also be changed by adjusting the pressure of the air source. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0025] Figure 2 This is a structural cross-sectional view of one end of the support base;

[0026] Figure 3 This is a cross-sectional view of the structure at one end of the rotary seat;

[0027] Figure 4 yes Figure 1 Side view sectional view;

[0028] Markings in the diagram:

[0029] 1. Axle; 2. Support base; 3. Rotary base; 4. Negative electrode support unit; 5. Positive electrode support unit; 6. Drive unit; 7. Platform; 8. Lead screw; 9. Rotary handwheel; 21. Center; 22. Pointed sleeve; 23. Bearing mounting sleeve; 24. Bearing body; 25. Support plate; 26. Front support; 27. Conical block; 28. Conical rod; 29. ​​Top cylinder; 31. Connecting plate; 32. Rotary motor; 41. Moving frame one; 42. Negative electrode fixing base; 43. Y-axis motion cylinder one; 44. Copper busbar fixing frame; 45. Flexible copper busbar; 51. Moving frame two; 52. Positive electrode fixing base; 53. Wheel support; 54. Welding wheel; 61. Linear guide rail; 62. Rack; 63. Gear. Detailed Implementation

[0030] like Figure 1-4 As shown, a heat treatment test system for an axle 1 is provided. In this embodiment, it includes a support seat 2 and a rotating seat 3 mounted on both ends of the axle 1. The rotating seat 3 is used to drive the axle 1 to rotate around the axis. A negative electrode support unit 4 and a positive electrode support unit 5 are also arranged on both sides of the axle 1. The negative electrode support unit 4 and the positive electrode support unit 5 are controlled by their respective drive units 6 to move linearly in a direction parallel to the axis of the axle 1. The electrically heated negative electrode support unit 4 uses a flexible copper busbar 45 to be flexible enough to fit tightly against different positions of the axle 1, preventing the risk of arcing due to poor connection. Different diameters of different positions of the axle 1 and unevenness of the surface of the axle 1 can all make close contact with the negative electrode. The part of the electrically heated positive electrode support unit 5 that contacts the axle 1 is a welding wheel 54. When the axle 1 rotates, the welding wheel 54 forms rolling friction with the surface of the axle 1, which can reduce the friction force with the surface of the axle 1 and effectively avoid indentation on the surface of the axle 1. The contact between the welding wheel 54 and the axle 1 is achieved by a cylinder, and the magnitude of the contact force can be changed by adjusting the pressure of the air source.

[0031] The support base 2 includes a top 21, a pointed sleeve 22, a bearing mounting sleeve 23, a bearing body 24, a support plate 25, and a front bracket 26. One axial end of the top 21 is provided with a conical block 27 for extending into and pressing against the end port of the axle 1. The other axial end of the top 21 is provided with a conical rod 28 embedded in the pointed sleeve 22. The conical tips of the conical block 27 and the conical rod 28 are set opposite to each other, so that the pressing tightness is better when pressing against the axle 1, thereby improving the stability of the rotation drive of the axle 1. The pointed sleeve 22 is sleeved outside the top 21 and disposed inside the bearing body 24. The bearing body 24 is disposed inside the bearing mounting sleeve 23. The bearing mounting sleeve 23 is fixedly mounted on the front bracket 26 by the support plate 25.

[0032] The front bracket 26 and the support plate 25 are slidably connected, and the front bracket 26 is also equipped with a top cylinder 29 for pushing the support plate 25 to rise and fall in the Z direction.

[0033] The front bracket 26 is slidably mounted on the table 7. The table 7 is also equipped with a lead screw 8 for driving the front bracket 26 to move back and forth in a straight line in the X direction. The end of the lead screw 8 is equipped with a rotating handwheel 9.

[0034] The rotating seat 3 has the same structure as the support seat 2, and a rotary motor 32 is also installed on the bearing mounting sleeve 23 of the rotating seat 3 through the connecting plate 31. The drive end of the rotary motor 32 is connected to the center 21 through a coupling. Thus, after the shaft of the rotary motor 32 rotates, it can drive the axle 1 housing to rotate.

[0035] The negative electrode support unit 4 includes a movable frame 41 driven by a corresponding drive unit 6, a negative electrode fixing seat 42 slidably mounted on the movable frame 41, and a cylinder 43 for driving the negative electrode fixing seat 42 to move in the Y direction. A set of copper busbar fixing frames 44 are also installed on the negative electrode fixing seat 42. Flexible copper busbars 45 are fixed at both ends of the U-shape of the copper busbar fixing frames 44 and form a concave arc surface in the U-shaped opening of the copper busbar fixing frames 44 under the push of the cylinder 43 so as to fit tightly against the surface of the axle 1.

[0036] The positive electrode support unit 5 includes a movable frame 51 driven by a corresponding drive unit 6, a positive electrode fixing seat 52 slidably mounted on the movable frame 51, and a cylinder 2 for driving the positive electrode fixing seat 52 to move in the Y direction. A set of wheel brackets 53 are also mounted on the positive electrode fixing seat 52, and the welding wheel 54 is mounted on the wheel brackets 53 and moves toward the surface of the axle 1 under the push of the cylinder 2 so as to form a roller contact with the surface of the axle 1.

[0037] The drive unit 6 includes a linear guide rail 61 and a rack 62 that extend along the X direction and are mounted on the table 7. The first movable frame 41 and the second movable frame 51 are equipped with drive motors. The drive end of the drive motor is engaged with the rack 62 through a gear 63. When the drive motor rotates, it can drive the gear to rotate. The gear can move linearly along the rack 62, thereby driving the negative pole support unit 4 and the positive pole support unit 5 to move as a whole in the X direction.

[0038] The working principle of this utility model is as follows: This utility model provides a heat treatment test system for axle 1, which can adapt to axles 1 of different lengths and shapes. The support seat 2 can be moved back and forth by rotating the handwheel 9 to freely adjust according to the length of the axle 1. The rotating seat 3 allows the axle 1 to rotate, and can also be moved back and forth by rotating the handwheel 9 to freely adjust according to the length of the axle 1. The electrically heated negative electrode support unit 4 adopts a flexible copper busbar 45 connection structure, which can be tightly attached to different positions of the axle 1 to prevent the risk of arcing due to loose connections. Different diameters and uneven surfaces of the axle 1 at different positions can ensure close contact with the negative electrode. The electrically heated positive electrode support unit 5 has rollers in contact with the axle 1. After the axle 1 rotates, the rollers rotate upon contact with the surface of the axle 1, reducing friction and effectively preventing indentations. The contact between the rollers and the axle 1 is achieved through a cylinder, and the contact force can be changed by adjusting the air pressure.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An axle heat treatment test system, characterized by, The axle includes support seats and rotating seats mounted at both ends. The rotating seats are used to drive the axle to rotate around the axis. Negative and positive support units are also arranged on both sides of the axle. The negative and positive support units are controlled by their respective drive units to move linearly in a direction parallel to the axle axis. The electrically heated negative support unit uses flexible copper busbars to ensure close contact with different positions of the axle. The part of the electrically heated positive support unit that contacts the axle is a welding wheel. When the axle rotates, the welding wheel forms rolling friction with the axle surface.

2. The axle heat treatment test system of claim 1, wherein, The support base includes a center point, a pointed sleeve, a bearing mounting sleeve, a bearing body, a support plate, and a front bracket. One axial end of the center point is provided with a conical block for extending into and pressing against the end of the axle pipe, and the other axial end of the center point is provided with a conical rod embedded in the pointed sleeve. The conical tips of the conical block and the conical rod are arranged opposite to each other. The pointed sleeve is fitted outside the center point and disposed inside the bearing body. The bearing body is disposed inside the bearing mounting sleeve. The bearing mounting sleeve is fixedly mounted on the front bracket by the support plate.

3. The axle heat treatment test system of claim 2, wherein, The front support and the support plate are slidably connected, and the front support is also equipped with a top cylinder for pushing the support plate to rise and fall in the Z direction.

4. The axle heat treatment test system of claim 3, wherein, The front bracket is slidably mounted on the table, and a lead screw for driving the front bracket to move back and forth in a straight line in the X direction is also mounted on the table. The end of the lead screw is equipped with a rotating handwheel.

5. The axle heat treatment test system of claim 2 or 3 or 4, wherein, The rotating seat and the support seat have the same structure, and a rotary motor is also mounted on the bearing mounting sleeve of the rotating seat through a connecting plate. The drive end of the rotary motor is connected to the center sleeve through a coupling.

6. The axle heat treatment test system of claim 1, wherein, The negative electrode support unit includes a movable frame driven by a corresponding drive unit, a negative electrode fixing seat slidably mounted on the movable frame, and a cylinder for driving the negative electrode fixing seat to move along the Y direction. A set of copper busbar fixing frames is also installed on the negative electrode fixing seat. The flexible copper busbar is fixed at both ends of the U-shape of the copper busbar fixing frame and forms a concave arc surface into the U-shaped opening of the copper busbar fixing frame under the push of the cylinder to fit tightly against the surface of the axle.

7. The axle heat treatment test system of claim 6, wherein, The positive electrode support unit includes a movable frame II driven by a corresponding drive unit, a positive electrode fixing seat slidably mounted on the movable frame II, and a cylinder II for driving the positive electrode fixing seat to move along the Y direction. A set of wheel brackets is also installed on the positive electrode fixing seat, and the welding wheel is installed on the wheel brackets and moves toward the axle surface under the push of the cylinder II to form a roller contact with the axle surface.

8. The axle heat treatment test system of claim 7, wherein, The drive unit includes a linear guide rail and a rack that extend along the X direction on the table. A drive motor is installed on the first and second movable frames. The drive end of the drive motor meshes with the rack through a gear. When the drive motor rotates, it can drive the gear to rotate. The gear can move linearly along the rack, thereby driving the negative pole support unit and the positive pole support unit as a whole to move in the X direction.

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