Automobile hub axle tube quenching device

Abstract

The utility model discloses an automobile hub axle tube quenching device which comprises a working table provided with a water accumulating tank and a quenching base, a positioning table is arranged at the upper part of the quenching base, and a positioning part which is used for positioning an axle tube from the lower end and is provided with a column body is arranged at the upper part of the positioning table; an L-shaped support connected with a first lifting component and a second lifting component connected with a quenching component are arranged on the two sides of the quenching base respectively, the lower portion of the first lifting component is connected with a pressing component which presses the shaft tube from the upper end and is provided with an inverted conical column, and the quenching component extends to form a quenching coil located in the peripheral direction of the shaft tube. And the quenching component is fixedly connected with a cooling ring which is positioned below the quenching coil and moves synchronously with the quenching coil, so that the pressed and quenched shaft tube can be cooled in time. The shaft tube can be accurately positioned from the lower end and the upper end of the shaft tube respectively, the quenching quality of the outer wall of the shaft tube is not affected, deviation is avoided in the positioning process, it is guaranteed that the axis of the shaft tube is consistent with the axis of a quenching ring, and the quenching quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of quenching equipment, in particular to a quenching device for an automobile hub shaft tube. Background Art

[0002] The automobile wheel hub is one of the important parts of a vehicle. It is the part where the axle is installed in the center of the wheel, which is often called the wheel rim or steel rim. One of the main components of the automobile wheel hub is the hub axle tube, which is set at both ends of the bridge housing, and the half shaft passes through the hub axle tube. During the driving process of the car, the hub axle tube not only has to bear the weight of the entire vehicle body and the cargo on the vehicle, but also has to bear the complex and changeable stress caused by road conditions. The quality of the hub axle tube affects the service life of the bearing and oil seal, thereby affecting the stability and safety of the whole vehicle. In order to ensure the quality of the hub axle tube, the hub axle tube generally needs to be quenched after forging to improve the mechanical properties of the axle tube. In order to prevent the automobile hub axle tube from shifting during the quenching process, the automobile hub axle tube needs to be fixed.

[0003] The existing patent application document with publication number CN110964880A discloses "a medium-frequency quenching tool for automobile hub axle tubes". It adopts the cooperation of lifting plates and pressure columns to effectively simplify the operation steps of fixing automobile hub axle tubes, and is easy to use. However, this scheme only uses a pressure column to press the axle tube onto the support seat from the upper end of the axle tube. When the pressure column presses the axle tube down, it is easy to cause the axle tube to deviate on the support seat, and the pressure column is not accurate enough in positioning the axle tube, and it is impossible to ensure that the axis of the axle tube is consistent with the axis of the quenching ring, which affects the quenching effect. There is also a patent document with announcement number CN218811897U, which discloses "a medium-frequency quenching fixing tool for automobile hub axle tubes". It clamps and fixes the hub axle tube by a first clamp and a second clamp, and has a good fixing effect on the hub axle tube. However, in this solution, after the first clamping member and the second clamping member clamp the two ends of the hub shaft tube, the clamped parts of the two ends of the shaft tube cannot be quenched, which leads to uneven mechanical properties of different sections of the shaft tube and poor quenching quality of the shaft tube. Utility Model Content

[0004] In order to solve the technical problems in the prior art that the shaft tube positioning is not accurate enough, which affects the quenching effect of the shaft tube and the quenching quality of the shaft tube is poor, the utility model provides the following technical solutions.

[0005] The utility model discloses a quenching device for an automobile wheel hub shaft tube, comprising a workbench provided with a water accumulation tank and a quenching base, a positioning platform provided on the upper part of the quenching base, a positioning component provided with a column for positioning the shaft tube from the lower end provided on the upper part of the positioning platform, an L-shaped bracket connected with a first lifting component and a second lifting component connected with the quenching component are respectively provided on both sides of the quenching base, a clamping component provided with an inverted conical column for clamping the shaft tube from the upper end is connected to the lower part of the first lifting component, a quenching coil located in the peripheral direction of the shaft tube is extended from the quenching component, and a cooling ring located below the quenching coil and moving synchronously with the quenching coil is fixedly connected to the quenching component, so as to timely cool the shaft tube after being clamped and quenched.

[0006] As a further technical solution, the outer periphery of the column is fixedly connected to a plurality of telescopic sleeves with springs on the outer periphery through a fixed wall, and one end of the telescopic sleeve away from the column is fixedly connected to an outer support plate with an extrusion end.

[0007] As a further technical solution, an arc-shaped guide end is provided at the upper end of the column.

[0008] As a further technical solution, the first lifting component includes a lifting cylinder fixed to the upper end of the L-shaped bracket and a guide slide rod slidably connected to the L-shaped bracket. The output end of the lifting cylinder and the lower end of the guide slide rod pass through the L-shaped bracket and are connected to a lifting frame located below the L-shaped bracket.

[0009] As a further technical solution, the clamping component includes an electric telescopic rod located in the lifting frame, and an output end of the electric telescopic rod passes through the lifting frame and is connected to the conical column located below the lifting frame.

[0010] As a further technical solution, the clamping component includes two relatively arranged extension plates fixedly connected to the lower end of the lifting frame, and a detachable pressure edge ring is connected between the two extension plates by bolts.

[0011] As a further technical solution, the axis of the pressure ring and the axis of the conical column are on the same straight line.

[0012] As a further technical solution, the axes of the column, the tapered column and the quenching coil are in the same straight line as the axis of the shaft tube.

[0013] As a further technical solution, the second lifting component includes a lifting column fixed to the upper part of the workbench and provided with a lifting slot and a driving motor fixed to the upper end of the lifting column, the output end of the driving motor is connected to a screw rotatably connected to the lifting slot, the screw is connected to a screw slider, and the screw slider is connected to the quenching component.

[0014] As a further technical solution, the outer wall of the cooling ring is provided with a cold water pipe opening, and the inner wall of the cooling ring is provided with a plurality of evenly arranged water outlet holes.

[0015] The utility model has the beneficial effect that the positioning component located on the upper part of the positioning platform can accurately position the shaft tube from the inner cavity at the lower end of the shaft tube, and the pressing component can reposition and press the shaft tube from the upper edge of the shaft tube and the inner cavity at the upper end of the shaft tube, so that the shaft tube can be accurately positioned without affecting the outer wall of the shaft tube and the quenching quality of the outer wall of the shaft tube. In addition, no deviation will occur during the positioning process, so that the axis of the shaft tube can be guaranteed to be consistent with the axis of the quenching ring, thereby improving the quenching quality and quenching effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model automobile wheel hub shaft tube quenching device;

[0017] Figure 2 This is a structural schematic diagram of another perspective of the automobile hub shaft tube quenching device of the utility model;

[0018] Figure 3 It is a schematic diagram of the positioning components of the automobile hub shaft tube quenching device of the utility model;

[0019] Figure 4 It is a schematic diagram of the clamping components of the automobile hub shaft tube quenching device of the utility model;

[0020] Figure 5 This is a schematic diagram of the connection of the second lifting component of the automobile hub shaft tube quenching device of the utility model;

[0021] Figure 6 It is a schematic diagram of an axle tube quenched by the automobile wheel hub axle tube quenching device of the utility model;

[0022] In the figure: 1-working table; 101-supporting leg; 102-water trough; 103-quenching base; 2-positioning table; 3-positioning component; 301-column; 302-guide end; 303-fixed wall; 304-telescopic sleeve; 305-spring; 306-outer support plate; 307-extrusion end; 4-L-shaped bracket; 5-first lifting component; 501-lifting cylinder; 502-guide slide rod; 503-lifting frame; 6-clamping component; 601-electric telescopic rod; 602-conical column; 603-extension plate; 604-edge pressure ring; 605-bolt; 7-second lifting component; 701-lifting column; 702-lifting slide; 703-driving motor; 704-screw; 705-screw slider; 8-quenching component; 801-quenching coil; 9-cooling ring; 901-cold water pipe outlet; 902-water outlet; 10-electrical box. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0024] In the description of the present invention, it should be understood that the terms "upper" and "lower" are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] like Figure 1 and Figure 2 As shown, the utility model is a quenching device for a hub shaft tube of an automobile, comprising a workbench 1 provided with a water trough 102 and a quenching base 103, and a positioning platform 2 is provided on the upper part of the quenching base 103. A plurality of supporting legs 101 are provided at the lower part of the workbench 1, and an electrical box 10 is connected to the lower end of the workbench 1, and the electrical box 10 is used to provide power and control system for the following multiple power components. The water trough 102 is used to collect used cooling waste water, and the water trough 102 is connected to an external collection box, and the cooling waste water flowing to the water trough 102 is collected in the external collection box for further treatment. The water trough 102 and the external collection box adopt the existing structure, which will not be described in detail.

[0026] like Figure 2 and Figure 3 As shown, in a preferred embodiment, a positioning component 3 for positioning the shaft tube from the lower end is provided on the upper part of the positioning platform 2, and the positioning component 3 is provided with a column 301, and the column 301 is fixed at the upper center position of the positioning platform 2, and an arc-shaped guide end 302 is provided at the upper end of the column 301. In this embodiment, the column 301 is a cylindrical structure, and the diameter of the column 301 is not greater than the diameter of the inner cavity of the lower end of the shaft tube. The inner cavity of the shaft tube can be inserted from the guide end 302 to the outer periphery of the column 301, thereby, the column 301 fixes the lower end of the shaft tube.

[0027] In another preferred embodiment, the column 301 is also a cylindrical structure fixed at the center of the positioning platform 2, the diameter of the column 301 is smaller than the diameter of the inner cavity at the lower end of the shaft tube, and four fixed walls 303 are evenly arranged on the outer periphery of the column 301, and each fixed wall 303 is evenly fixedly connected with a telescopic sleeve 304 with a shorter stroke, and the end of the telescopic sleeve 304 away from the column 301 is fixedly connected with an outer support plate 306. A spring 305 is sleeved on the outer periphery of the telescopic sleeve 304, and the spring 305 can be fixedly connected with the fixed wall 303 and the outer support plate 306. Of course, the spring 305 can also be disconnected from the fixed wall 303 and the outer support plate 306, and the spring 305 can be only sleeved on the outer periphery of the telescopic sleeve 304. An arc-shaped extrusion end 307 is provided at the upper end of the outer support plate 306. The distance between the relatively arranged extrusion ends 307 is smaller than the diameter of the inner cavity at the lower end of the shaft tube, so that the shaft tube can be directly extruded downward from the extrusion end 307. The extrusion end 307 drives the multiple outer support plates 306 to extrude the spring 305 and contract. The shaft tube can be smoothly sleeved downward on the outer peripheral walls of the multiple outer support plates 306. Under the action of multiple evenly arranged telescopic sleeves 304 and springs 305, the multiple outer support plates 306 are pressed against the shaft tube, thereby accurately positioning the shaft tube.

[0028] like Figure 2 and Figure 4 As shown, in another preferred embodiment, an inverted L-shaped bracket 4 is fixedly connected to one side of the quenching base 103, and a first lifting component 5 is connected to the upper part of the L-shaped bracket 4. The first lifting component 5 includes a lifting cylinder 501 fixed to the upper end of the L-shaped bracket 4, and the output end of the lifting cylinder 501 passes downward through the L-shaped bracket 4 and is connected to a lifting frame 503 located below the L-shaped bracket 4. The lifting frame 503 is fixedly connected to a guide slide 502, which passes upward through the L-shaped bracket 4 and is slidably connected to the L-shaped bracket 4. A limit end is provided at the upper end of the guide slide 502, and the lifting cylinder 501 controls the lifting and lowering of the lifting frame 503, so that the lifting frame 503 is close to or away from the upper end of the shaft tube.

[0029] In another preferred embodiment, a pressing component 6 for pressing the shaft tube from the upper end is connected to the lower part of the first lifting component 5. Specifically, the pressing component 6 includes an electric telescopic rod 601 located in the lifting frame 503, and the output end of the electric telescopic rod 601 passes through the lifting frame 503 and is downwardly connected to a conical column 602 located below the lifting frame 503. The conical column 602 can be lifted and lowered with the lifting frame 503, so that the conical column 602 can be inserted into the inner cavity at the upper end of the shaft tube to accurately position and fix the shaft tube from the upper end. The conical column 602 is an inverted conical column structure, which can adapt to shaft tubes of various sizes.

[0030] In another preferred embodiment, the clamping component 6 also includes two relatively arranged extension plates 603 fixedly connected to the lower end of the lifting frame 503, and a detachable pressure ring 604 is connected between the two extension plates 603 by bolts 605. When the lifting frame 503 descends, the pressure ring 604 first presses the upper edge of the shaft tube, and then the electric telescopic rod 601 drives the conical column 602 to extend downward into the inner cavity of the upper end of the shaft tube to position the shaft tube. It should be known that the axis of the pressure ring 604 is in the same straight line with the axis of the conical column 602, and the axis of the column 301, the conical column 602 and the quenching coil 801 is in the same straight line with the axis of the shaft tube, so that the positioning component 3 and the clamping component 6 can accurately position and clamp the shaft tube, so that it is in the same straight line with the axis of the quenching limit 801, thereby improving the quenching quality.

[0031] like Figure 2 and Figure 5 As shown, a second lifting component 7 is provided on one side of the quenching base 103, and the second lifting component 7 is connected to the quenching component 8. The second lifting component 7 can drive the quenching component 8 to move up and down to quench the shaft tube. The quenching component 8 adopts the existing technology, and its specific structure is no longer illustrated and described.

[0032] In another preferred embodiment, the second lifting component 7 includes a lifting column 701 fixed on the upper part of the workbench 1, and a lifting slide 702 is provided inside the lifting column 701. The inner cavity of the lifting slide 702 is rotatably connected to a lead screw 704. A driving motor 703 is fixedly connected to the upper end of the lifting column 701, and the output end of the driving motor 703 is downwardly connected to the lead screw 704, and the lead screw 704 is connected to a lead screw slider 705, and the lead screw slider 705 is connected to the quenching component 8. Driven by the driving motor 703, the quenching component 8 is lifted up and down along with the lead screw slider 705.

[0033] In another preferred embodiment, the quenching component 8 is extended with a quenching coil 801 located in the peripheral direction of the shaft tube, and the quenching component 8 is fixedly connected with a cooling ring 9 located below the quenching coil 801, and the cooling ring 9 is connected to an external cooling water system. The cooling ring 9 moves synchronously with the quenching coil 801, and the quenched shaft tube can be cooled in time. The outer wall of the cooling ring 9 is provided with a cold water pipe mouth 901, and the cold water pipe mouth 901 is connected to the external cooling water system. The inner wall of the cooling ring 9 is provided with a plurality of evenly arranged water outlet holes 902, and the water outlet holes 902 can cool the quenched shaft tube from multiple directions around the shaft tube.

[0034] When the utility model is in use, the shaft tube is first squeezed downward from the guide end 302 and the squeeze end 307, so that the multiple outer support plates 306 are pressed against the shaft tube, and the shaft tube is accurately positioned; the second lifting component 7 is started, so that the quenching coil 801 and the cooling ring 9 are moved downward from the top of the shaft tube and sleeved on the outer periphery of the shaft tube until they move to the lower part of the shaft tube; the first lifting component 5 is started, and the first lifting component 5 drives the edge pressing ring 604 to press the edge pressing ring 604 against the upper edge of the shaft tube, and then the electric telescopic rod 601 drives the conical column 602 to extend downward into the upper end of the shaft tube The shaft tube is positioned in the cavity; the quenching component 8 is started, and the quenching coil 801 begins to quench the shaft tube. During the quenching process, the second lifting component 7 rises evenly, and the cooling ring 9 cools the quenched shaft tube in time; after the quenching is completed, the electric telescopic rod 601 first drives the conical column 602 to move upward to disengage from the inner cavity at the upper end of the shaft tube, and then the first lifting component 5 drives the pressure ring 604 to disengage from the upper edge of the shaft tube, and the second lifting component 7 drives the quenching coil 801 to rise above the shaft tube, and finally, the shaft tube is taken up with force to disengage the shaft tube from the positioning component 3.

[0035] The preferred specific implementation modes and embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above implementation modes and embodiments, and various changes or equivalent substitutions can be made within the knowledge scope of those skilled in the art without departing from the concept of the utility model. Therefore, the utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the utility model.

Claims

1. A quenching device for an automobile hub shaft tube, comprising a workbench (1) provided with a water storage tank (102) and a quenching base (103), wherein a positioning platform (2) is provided on the upper part of the quenching base (103), characterized in that: The upper part of the positioning platform (2) is provided with a positioning component (3) provided with a column (301) for positioning the shaft tube from the lower end; the two sides of the quenching base (103) are respectively provided with an L-shaped bracket (4) connected to a first lifting component (5) and a second lifting component (7) connected to a quenching component (8); the lower part of the first lifting component (5) is connected to a clamping component (6) provided with an inverted conical column (602) for clamping the shaft tube from the upper end; the quenching component (8) extends with a quenching coil (801) located in the peripheral direction of the shaft tube; the quenching component (8) is fixedly connected with a cooling ring (9) located below the quenching coil (801) and moving synchronously with the quenching coil, so as to facilitate timely cooling of the clamped and quenched shaft tube.

2. The automobile hub shaft tube quenching device according to claim 1, characterized in that: The outer periphery of the column (301) is fixedly connected to a plurality of telescopic sleeves (304) with springs (305) sleeved on the outer periphery via a fixed wall (303); an end of the telescopic sleeve (304) away from the column (301) is fixedly connected to an outer support plate (306) with an extrusion end (307).

3. The automobile hub shaft tube quenching device according to claim 1 or 2, characterized in that: The upper end of the column (301) is provided with an arc-shaped guide end (302).

4. The automobile hub shaft tube quenching device according to claim 1, characterized in that: The first lifting component (5) comprises a lifting cylinder (501) fixed to the upper end of the L-shaped bracket (4) and a guide slide bar (502) slidably connected to the L-shaped bracket (4); the output end of the lifting cylinder (501) and the lower end of the guide slide bar (502) pass through the L-shaped bracket (4) and are connected to a lifting frame (503) located below the L-shaped bracket (4).

5. The automobile hub shaft tube quenching device according to claim 4, characterized in that: The pressing component (6) comprises an electric telescopic rod (601) located in the lifting frame (503), and an output end of the electric telescopic rod (601) passes through the lifting frame (503) and is connected to the conical column (602) located below the lifting frame (503).

6. The automobile hub shaft tube quenching device according to claim 4, characterized in that: The clamping component (6) comprises two extension plates (603) which are fixedly connected to the lower end of the lifting frame (503) and arranged opposite to each other, and a detachable pressure edge ring (604) is connected between the two extension plates (603) via bolts (605).

7. The automobile hub shaft tube quenching device according to claim 6, characterized in that: The axis of the pressure ring (604) and the axis of the conical column (602) are on the same straight line.

8. The automobile hub shaft tube quenching device according to claim 1, characterized in that: The axes of the column (301), the tapered column (602) and the quenching coil (801) are in the same straight line as the axis of the shaft tube.

9. The automobile hub shaft tube quenching device according to claim 1, characterized in that: The second lifting component (7) comprises a lifting column (701) fixed on the upper part of the workbench (1) and provided with a lifting slot (702), and a driving motor (703) fixed on the upper end of the lifting column (701), the output end of the driving motor (703) being connected to a lead screw (704) rotatably connected to the lifting slot (702), the lead screw (704) being connected to a lead screw slider (705), and the lead screw slider (705) being connected to the quenching component (8).

10. The automobile hub shaft tube quenching device according to claim 1, characterized in that: The outer wall of the cooling ring (9) is provided with a cold water pipe opening (901), and the inner wall of the cooling ring (9) is provided with a plurality of evenly arranged water outlet holes (902).

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