Automobile half shaft hot straightening device

Abstract

The application discloses a kind of automobile half shaft hot straightening devices, including conveying mechanism, setting in the conveying device both sides of the tight mechanism and setting in the straightening mechanism above conveying mechanism, straightening mechanism is multiple position synchronous straightening structure, tight mechanism is multiple position synchronous tight structure, conveying mechanism is multiple position synchronous conveying structure.The automobile half shaft hot straightening device of the above structure is used in the application, by setting multiple synchronous work stations, multiple half shafts on multiple position can be straightened once, and the processing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of axle machining technology, and more particularly to a thermal straightening device for automotive axles. Background Technology

[0002] The half-shaft is a crucial component of an automotive transmission system. It transmits power from the differential half-shaft gear to the drive wheels or wheel-side reducers. The outer end of the half-shaft connects to the wheel hub, while the inner end is splined to the half-shaft gear. During operation, the half-shaft gear only transmits torque to the half-shaft; the inner end of the half-shaft experiences only torque and not bending moment. The half-shaft is the axle component in a car that bears the highest torque. During the production of half-shafts, the blank rod portion needs to be straightened to ensure perpendicularity.

[0003] Existing half-shaft straightening devices, such as the half-shaft straightening machine disclosed in 201921095609.6, use a fixing module installed on a straightening platform to fix the half-shaft. It is equipped with a dial indicator to detect the curvature of the half-shaft and a micrometer to detect the flatness of the half-shaft surface. The top pressure block, which moves up and down along the vertical direction, presses the curved part of the half-shaft to straighten it. It not only has high correction accuracy, but also high efficiency, saving time and labor.

[0004] It is known that the existing half-shaft straightening device can only process one half-shaft at a time, resulting in low processing efficiency. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a thermal straightening device for automotive half-shafts. By setting up multiple synchronously operating stations, multiple half-shafts at multiple stations can be straightened simultaneously, thereby improving processing efficiency.

[0006] To achieve the above objectives, the present invention provides a hot straightening device for automobile half-shafts, including a conveying mechanism, a clamping mechanism disposed on both sides of the conveying mechanism, and a straightening mechanism disposed above the conveying mechanism. The straightening mechanism is a multi-station synchronous straightening structure, the clamping mechanism is a multi-station synchronous clamping structure, and the conveying mechanism is a multi-station synchronous conveying structure.

[0007] Preferably, the conveying mechanism includes a conveying support and an alternating conveying unit disposed on the conveying support. The alternating conveying unit includes two alternating outer lifting conveying platforms and an inner lifting conveying platform.

[0008] Both the outer and inner lifting conveyor platforms include a longitudinal moving component, a lifting component, and a bearing plate. Multiple bearing blocks are evenly arranged in a linear array on the bearing plate. V-shaped grooves are provided on the bearing blocks, and the half-shaft to be straightened is placed in the V-shaped grooves.

[0009] The support plate of the outer lifting conveyor platform is located outside the support plate of the inner lifting conveyor platform.

[0010] Preferably, the longitudinal movement component is a longitudinal linear movement module fixed on the conveyor support;

[0011] The lifting assembly is the first lifting module fixed to the output end of the longitudinal linear movement module.

[0012] Preferably, the clamping mechanism includes clamping brackets disposed on both sides of the conveying bracket, a transverse moving module fixed to the top of the clamping bracket, a transverse moving platform connected to the output end of the transverse moving module, and multiple clamping components connected to the top of the transverse moving platform and arranged corresponding to the bearing blocks.

[0013] Preferably, the clamping assembly includes a rotary drive motor disposed at one end of the half shaft to be straightened, an active clamping head connected to the output end of the rotary drive motor, and a driven clamping head disposed at the other end of the half shaft to be straightened. Both the active clamping head and the driven clamping head are rotatably connected to the transverse moving platform, and the half shaft to be straightened is clamped between the active clamping head and the driven clamping head.

[0014] Preferably, the straightening mechanism includes a straightening bracket disposed above the conveying bracket, a lateral travel component disposed on the straightening bracket, a second lifting module disposed at the output end of the lateral travel component, a lifting platform disposed at the output end of the second lifting module, and multiple straightening components with corresponding bearing blocks disposed on the lifting platform;

[0015] The straightening assembly includes a pressure cylinder and a pressure head fixed to the piston rod of the pressure cylinder.

[0016] Preferably, the pressing head is electrically connected to the negative terminal of the power supply, the driven tightening head is electrically connected to the positive terminal of the power supply, and a contactor coil is connected in series between the positive terminal of the power supply and the driven tightening head. Multiple normally open contacts of the contactor are connected in series between the three-phase power supply and multiple pressing cylinders, and the normally closed contacts of the contactor are connected in series between the three-phase power supply and the second lifting module.

[0017] Preferably, the straightening mechanism further includes multiple detectors mounted on the conveyor support for detecting the perpendicularity of the half-shaft to be straightened. The output end of the detector is electrically connected to the controller, and the output end of the controller is electrically connected to the input end of the pressing cylinder.

[0018] The testing instrument is located below the downward cylinder and close to the half-shaft to be straightened, with the probe of the testing instrument set against the bottom end of the half-shaft to be straightened.

[0019] Preferably, the bottom end of the active clamping head, the bottom end of the driven clamping head, the cylinder body of the pressing cylinder, and the bottom end of the bearing block are all provided with longitudinal slide rails, and the transverse moving platform, the lifting platform, and the bearing plate are all provided with longitudinal sliders. The longitudinal sliders are slidably connected to the longitudinal slide rails and are positioned and connected by set screws.

[0020] The present invention has the following beneficial effects:

[0021] 1. The automotive half-shaft hot straightening device, by setting up multiple synchronously working stations, can straighten multiple half-shafts at multiple stations at one time, thus improving processing efficiency.

[0022] 2. The second lifting module drives the downward pressing cylinder to move downward. When the downward pressing cylinder contacts the half shaft and is energized, the second lifting module stops operating, thus avoiding damage to the half shaft caused by excessive pressing.

[0023] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0024] Figure 1 This is a top view of an automotive half-shaft thermal straightening device according to the present invention;

[0025] Figure 2 This is a front view of an automotive half-shaft thermal straightening device according to the present invention.

[0026] The components include: 1. Tightening mechanism; 11. Driven tightening head; 12. Active tightening head; 13. Rotary drive motor; 14. Lateral moving platform; 15. Lateral moving module; 16. Tightening bracket;

[0027] 2. Straightening mechanism; 21. Pressing cylinder; 22. Straightening bracket; 23. Lateral travel assembly; 24. Second lifting module; 25. Lifting platform; 26. Pressing head;

[0028] 3. Conveying mechanism; 31. Outer lifting conveying platform; 311. Longitudinal moving assembly; 312. Lifting assembly; 313. Support plate; 32. Inner lifting conveying platform; 33. Conveying support;

[0029] 4. Half-shaft to be straightened. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages disclosed in the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0031] It should be noted that the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0032] Similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0034] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] like Figure 1 and Figure 2 As shown, a car half-shaft thermal straightening device includes a conveying mechanism 3, a clamping mechanism 1 disposed on both sides of the conveying mechanism, and a straightening mechanism 2 disposed above the conveying mechanism 3. The straightening mechanism 2 is a multi-station synchronous straightening structure, the clamping mechanism 1 is a multi-station synchronous clamping structure, and the conveying mechanism 3 is a multi-station synchronous conveying structure.

[0036] Preferably, the conveying mechanism 3 includes a conveying support 33 and an alternating conveying unit disposed on the conveying support 33. The alternating conveying unit includes two alternatingly operating outer lifting conveying platforms 31 and inner lifting conveying platforms 32. Both the outer lifting conveying platform 31 and the inner lifting conveying platform 32 include a longitudinal moving component 311, a lifting component 312, and a support plate 313. Multiple support blocks are evenly arranged in a linear array on the support plate 313. V-shaped grooves are opened on the support blocks, and the half-shaft 4 to be straightened is placed in the V-shaped grooves. The support plate 313 of the outer lifting conveying platform 31 is located outside the support plate 313 of the inner lifting conveying platform 32.

[0037] Preferably, the longitudinal moving component 311 is a longitudinal linear moving module fixed on the conveying bracket 33; the lifting component 312 is a first lifting module fixed to the output end of the longitudinal linear moving module.

[0038] Preferably, the clamping mechanism 1 includes clamping brackets 16 disposed on both sides of the conveying bracket 33, a transverse moving module 15 fixed to the top of the clamping bracket 16, a rotation drive motor 13 connected to the output end of the transverse moving module 15, and a plurality of clamping components connected to the top of the transverse moving platform 14 and arranged corresponding to the bearing blocks.

[0039] Preferably, the clamping assembly includes a rotary drive motor 13 disposed at one end of the half shaft 4 to be straightened, an active clamping head 12 connected to the output end of the rotary drive motor 13, and a driven clamping head 11 disposed at the other end of the half shaft 4 to be straightened. Both the active clamping head 12 and the driven clamping head 11 are rotatably connected to the transverse moving platform, and the half shaft 4 to be straightened is clamped between the active clamping head 12 and the driven clamping head 11.

[0040] Preferably, the straightening mechanism 2 includes a straightening bracket 22 disposed above the conveying bracket 33, a lateral travel component 23 disposed on the straightening bracket 22 (the lateral travel component 23 can be a linear module structure or a motor screw structure, so it will not be described in detail here), a second lifting module 24 disposed at the output end of the lateral travel component 23, a lifting platform 25 disposed at the output end of the second lifting module 24, and multiple straightening components with corresponding bearing blocks disposed on the lifting platform 25; the straightening component includes a pressing cylinder 21 and a pressing head 26 fixed on the piston rod of the pressing cylinder 21. It should be noted that the lifting module and the longitudinal linear movement module have the same structure, only their arrangement directions are perpendicular to each other, and the structure and principle of the module are common knowledge in the art, so they will not be described in detail here.

[0041] Preferably, the pressing head 26 is electrically connected to the negative terminal of the power supply, the driven tightening head 11 is electrically connected to the positive terminal of the power supply, and a contactor coil is connected in series between the positive terminal of the power supply and the driven tightening head 11. Multiple normally open contacts of the contactor are connected in series between the three-phase power supply and multiple pressing cylinders 21, and the normally closed contacts of the contactor are connected in series between the three-phase power supply and the second lifting module 24.

[0042] Preferably, the straightening mechanism 2 further includes multiple detectors mounted on the conveying support 33 for detecting the perpendicularity of the half-shaft 4 to be straightened. The output end of the detector is electrically connected to the controller, and the output end of the controller is electrically connected to the input end of the pressing cylinder 21. The detector is located below the pressing cylinder 21 and close to the half-shaft 4 to be straightened, and the probe of the detector is set to fit against the bottom end of the half-shaft 4 to be straightened.

[0043] Preferably, the bottom end of the active clamping head 12, the bottom end of the driven clamping head 11, the cylinder body of the pressing cylinder 21, and the bottom end of the bearing block are all provided with longitudinal slide rails, and the transverse moving platform, the lifting platform 25, and the bearing plate 313 are all provided with longitudinal sliders. The longitudinal sliders are slidably connected to the longitudinal slide rails and are positioned and connected by set screws.

[0044] Workflow: The half-shaft 4 to be straightened in the previous process falls onto the support block in sequence and moves forward under the action of the alternating conveyor unit until it is aligned with the clamping mechanism 1. The clamping mechanism 1 then activates, clamping the half-shaft 4 to be straightened. Under the action of the rotation drive motor 13, the active clamping head 12 rotates, which in turn drives the half-shaft 4 to be straightened to rotate. During the rotation of the half-shaft 4 to be straightened, the second lifting module 24 drives the pressing cylinder 21 to move downward until the pressing head 26 on one of the pressing cylinders 21 contacts the half-shaft 4 to be straightened. The second lifting module 24 then stops operating, and the pressing cylinder 21 performs straightening according to the data collected by the detector.

[0045] Therefore, the automotive half-shaft thermal straightening device of the present invention adopts the above-described structure. By setting up multiple synchronously working stations, it can straighten multiple half-shafts at multiple stations at one time, thereby improving processing efficiency.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A heat straightening device for automobile axle shafts, comprising a conveying mechanism, a clamping mechanism arranged on both sides of the conveying mechanism and a straightening mechanism arranged above the conveying mechanism, characterized in that: The straightening mechanism is a multi-station synchronous straightening structure, the clamping mechanism is a multi-station synchronous clamping structure, and the conveying mechanism is a multi-station synchronous conveying structure; The conveying mechanism comprises a conveying support and alternating conveying units arranged on the conveying support, and the alternating conveying units comprise two alternatingly operated outer and inner lifting conveying platforms; The outer and inner lifting conveying platforms each comprise a longitudinal moving assembly, a lifting assembly and a bearing plate, a plurality of bearing blocks are arranged in a linear array on the bearing plate, a V-shaped groove is formed in each bearing block, and a half shaft to be straightened is placed in the V-shaped groove; The bearing plate of the outer lifting conveying platform is located outside the bearing plate of the inner lifting conveying platform; The clamping mechanism comprises clamping supports arranged on both sides of the conveying support, a horizontal moving module fixed to the top end of the clamping support, a horizontal moving platform connected to the output end of the horizontal moving module, and a plurality of clamping assemblies arranged corresponding to the bearing blocks and connected to the top end of the horizontal moving platform; The clamping assembly comprises a rotating drive motor arranged at one end of the half shaft to be straightened, a driving clamping head connected to the output end of the rotating drive motor, and a driven clamping head arranged at the other end of the half shaft to be straightened, the driving clamping head and the driven clamping head are rotationally connected to the horizontal moving platform, and the half shaft to be straightened is clamped between the driving clamping head and the driven clamping head; The straightening mechanism comprises a straightening support arranged above the conveying support, a horizontal moving assembly arranged on the straightening support, a second lifting module arranged at the output end of the horizontal moving assembly, a lifting platform arranged at the output end of the second lifting module, and a plurality of straightening assemblies arranged on the lifting platform corresponding to the bearing blocks; The straightening assembly comprises a pressing cylinder and a pressing head fixed to the piston rod of the pressing cylinder; The pressing head is electrically connected to the negative pole of the power supply, the driven clamping head is electrically connected to the positive pole of the power supply, a coil of a contactor is further connected in series between the positive pole of the power supply and the driven clamping head, a plurality of normally open contacts of the contactor are connected in series between three-phase power and a plurality of pressing cylinders, and a normally closed contact of the contactor is connected in series between three-phase power and the second lifting module; The straightening mechanism further comprises a plurality of detectors arranged on the conveying support and used for detecting the perpendicularity of the half shaft to be straightened, the output end of the detector is electrically connected to the controller, and the output end of the controller is electrically connected to the input end of the pressing cylinder; The detector is located below the pressing cylinder and close to the half shaft to be straightened, and a probe rod of the detector is arranged close to the bottom end of the half shaft to be straightened.

2. The automobile axle shaft straightening device according to claim 1, wherein: The longitudinal moving assembly is a longitudinal linear moving module fixed to the conveying support; The lifting assembly is a first lifting module fixed to the output end of the longitudinal linear moving module.

3. The automobile axle shaft straightening device according to claim 1, wherein: The bottom end of the driving clamping head, the bottom end of the driven clamping head, the cylinder body of the pressing cylinder and the bottom end of the bearing block are each provided with a longitudinal sliding channel, the horizontal moving platform, the lifting platform and the bearing plate are each provided with a longitudinal sliding block, the longitudinal sliding block is slidingly connected to the longitudinal sliding channel and is positioned by a jackscrew.

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