Multi-station straightening process for automobile half shaft

Abstract

The application discloses a kind of multi-station automobile half shaft straightening processes, comprising the following steps: multiple half shafts are conveyed to multi-station conveying equipment-on multiple half shafts respectively with multiple straightening stations of multi-station straightening equipment alignment, multiple pressing stations of multi-station pressing equipment respectively press multiple half shafts-when arbitrary one straightening station contacts half shaft, multi-station straightening equipment stops synchronous downward, and multiple straightening stations respectively act in turn straightens corresponding half shaft-multiple half shafts are all qualified, host computer sends uplink instruction to multi-station straightening equipment, multiple straightening stations synchronous uplink, while multi-station conveying equipment uplink-multiple half shafts are loosened simultaneously by multiple pressing stations of multi-station pressing station, multiple half shafts are conveyed to next process under the action of multi-station conveying equipment, while multi-station conveying equipment is transferred to the next batch of multiple half shafts below multi-station straightening equipment.The application uses the above-mentioned multi-station automobile half shaft straightening process, multi-station is carried out simultaneously, and the straightening efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of automotive half-shaft machining technology, and in particular to a multi-station automotive half-shaft straightening process. 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] The existing half-shaft straightening process involves using a chain to transport the half-shaft to be straightened to the straightening equipment, where a cylinder drives the pressure head for straightening. This straightening method can only straighten one half-shaft at a time, resulting in low work efficiency. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a multi-station automotive half-shaft straightening process, which allows multiple stations to operate simultaneously, thereby improving straightening efficiency.

[0005] To achieve the above objectives, the present invention provides a multi-station automotive half-shaft straightening process, comprising the following steps:

[0006] S1. After low-temperature tempering, multiple half-shafts are conveyed to a multi-station conveyor.

[0007] S2. The multi-station conveyor drives multiple semi-axial components to move towards the multi-station straightening device.

[0008] S3, multiple half-shafts are aligned with multiple straightening stations of the multi-station straightening equipment, multiple clamping stations of the multi-station clamping equipment clamp multiple half-shafts respectively, and at the same time, multiple straightening stations of the multi-station conveying equipment and multiple conveying stations of the multi-station conveying equipment move down synchronously.

[0009] S4. When any one of the straightening stations contacts the half-shaft, the multi-station straightening equipment stops moving down synchronously, and the multiple straightening stations operate to straighten the corresponding half-shafts in sequence.

[0010] S5. When the detector corresponding to the half-shaft detects that the perpendicularity of the current half-shaft has reached the set perpendicularity, it will upload the qualified signal to the host computer, and the host computer will send a stop work command to the straightening station corresponding to this half-shaft.

[0011] S6. When multiple half-shafts are qualified, the host computer sends an uplink command to the multi-station straightening equipment. Multiple straightening stations move uplink synchronously, while the multi-station conveyor moves uplink to support the multiple half-shafts.

[0012] S7. The multi-station clamping station simultaneously releases multiple half-shafts. Under the action of the multi-station conveying equipment, the multiple half-shafts are conveyed to the next process. At the same time, the multi-station conveying equipment transfers the next batch of multiple half-shafts to the bottom of the multi-station straightening equipment.

[0013] S8, repeat steps S3-S7.

[0014] Preferably, the temperature of the multiple half-shafts in step S1 is 180°C;

[0015] In step S1, multiple half-shafts are arranged in a linear array on a multi-station conveyor, with a straightening gap between adjacent half-shafts.

[0016] Preferably, step S3 specifically includes the following steps:

[0017] S31. Multiple half-shafts move toward the multi-station straightening equipment under the action of the multi-station conveying equipment.

[0018] S32, The head half-shaft located among multiple half-shafts blocks the first infrared sensor set on the multi-station straightening device, which is located away from the conveying direction of the multi-station conveying device. The first infrared sensor sends a half-shaft start entry command to the host computer.

[0019] S33 and the host computer send work instructions to the multi-station straightening equipment and the multi-station clamping equipment respectively. The multiple straightening stations of the multi-station straightening equipment and the multiple clamping stations of the multi-station clamping equipment move towards the direction of the half shaft.

[0020] S34. The head half-shaft located among multiple half-shafts blocks the conveying direction of the multi-station conveying device. The second infrared sensor of the multi-station straightening device is set. The second infrared sensor sends a command to the host computer that the half-shaft is fully inserted. At this time, one of the straightening stations of the multi-station straightening device contacts the circumferential side of the half-shaft, and multiple clamping stations of the multi-station clamping device simultaneously clamp both ends of the half-shaft.

[0021] Preferably, assuming the shortest vertical distance between the multi-station straightening equipment and the circumferential side of the half-shaft is h1, the horizontal distance between the multiple clamping stations of the multi-station clamping equipment and the end of the half-shaft is h2, the conveying speed of the multi-station conveying equipment is v1, and the horizontal distance between the tail half-shafts of the multiple half-shafts and the multi-station straightening equipment is h3, then the formula for calculating the synchronous moving speed v2 of the multiple straightening stations of the multi-station straightening equipment is as follows:

[0022] v2 = h1 * v1 / h3

[0023] The formula for calculating the synchronous moving speed v3 of multiple clamping stations in a multi-station clamping device is as follows:

[0024] v3 = h2 * v1 / h3.

[0025] Preferably, the bottom of each of the multiple straightening stations of the multi-station straightening equipment is equipped with a first distance sensor. The multiple first distance sensors are connected to a host computer. The host computer is used to compare the collected values ​​of the multiple first distance sensors and select the minimum value as the shortest vertical distance h1 between the multi-station straightening equipment and the circumferential side of the half-shaft.

[0026] Preferably, a second distance sensor is installed at one of the clamping stations of the multi-station clamping device, facing the end of the half shaft. The second distance sensor is connected to the host computer, and the host computer calculates the horizontal distance h2 between the multiple clamping stations of the multi-station clamping device and the end of the half shaft based on the data collected by the second distance sensor.

[0027] Preferably, both the first ranging sensor and the second ranging sensor start working after the first infrared sensor is triggered.

[0028] Preferably, the host computer is also connected to encoders used to collect the operating speed of the multi-station conveying equipment, the synchronous moving speed of the multiple straightening stations of the multi-station straightening equipment, and the synchronous moving speed of the multiple clamping stations of the multi-station clamping equipment.

[0029] Preferably, in step S4, when one of the straightening stations contacts the half-shaft, the straightening station, the half-shaft, the contactor, and the power supply form a circuit. The contactor is triggered and sends a contact command to the host computer. The host computer simultaneously sends a stop synchronous descent command and a straightening command to the multi-station straightening equipment, and multiple straightening stations perform straightening simultaneously.

[0030] The present invention has the following beneficial effects:

[0031] 1. Simultaneous operation at multiple workstations improves alignment efficiency;

[0032] 2. Multiple straightening stations are dedicated to straightening, which avoids interference between multiple straightening stations and improves straightening accuracy.

[0033] 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

[0034] Figure 1 This is a flowchart of a multi-station automotive half-shaft straightening process according to the present invention. Detailed Implementation

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] like Figure 1 As shown, a multi-station automotive half-shaft straightening process includes the following steps:

[0041] S1. After low-temperature tempering, multiple half-shafts are conveyed to a multi-station conveyor.

[0042] In step S1, the temperature of multiple half-shafts is 180℃; that is, the half-shaft straightening at 180℃ can reduce the straightening force and improve production efficiency.

[0043] Preferably, in step S1, the multiple half-shafts are arranged in a linear array on the multi-station conveying device, and a straightening gap is left between two adjacent half-shafts to avoid mutual interference between two adjacent half-shafts during straightening.

[0044] S2. The multi-station conveyor drives multiple semi-axial components to move towards the multi-station straightening device.

[0045] S3, multiple half-shafts are aligned with multiple straightening stations of the multi-station straightening equipment, multiple clamping stations of the multi-station clamping equipment clamp multiple half-shafts respectively, and at the same time, multiple straightening stations of the multi-station conveying equipment and multiple conveying stations of the multi-station conveying equipment move down synchronously.

[0046] Preferably, step S3 specifically includes the following steps:

[0047] S31. Multiple half-shafts move toward the multi-station straightening equipment under the action of the multi-station conveying equipment.

[0048] S32, The head half-shaft located among multiple half-shafts blocks the first infrared sensor set on the multi-station straightening device, which is located away from the conveying direction of the multi-station conveying device. The first infrared sensor sends a half-shaft start entry command to the host computer.

[0049] S33 and the host computer send work instructions to the multi-station straightening equipment and the multi-station clamping equipment respectively. The multiple straightening stations of the multi-station straightening equipment and the multiple clamping stations of the multi-station clamping equipment move towards the direction of the half shaft.

[0050] S34. The head half-shaft located among multiple half-shafts blocks the conveying direction of the multi-station conveying device. The second infrared sensor of the multi-station straightening device is set. The second infrared sensor sends a command to the host computer that the half-shaft is fully inserted. At this time, one of the straightening stations of the multi-station straightening device contacts the circumferential side of the half-shaft, and multiple clamping stations of the multi-station clamping device simultaneously clamp both ends of the half-shaft.

[0051] Preferably, assuming the shortest vertical distance between the multi-station straightening equipment and the circumferential side of the half-shaft is h1, the horizontal distance between the multiple clamping stations of the multi-station clamping equipment and the end of the half-shaft is h2, the conveying speed of the multi-station conveying equipment is v1, and the horizontal distance between the tail half-shafts of the multiple half-shafts and the multi-station straightening equipment is h3, then the formula for calculating the synchronous moving speed v2 of the multiple straightening stations of the multi-station straightening equipment is as follows:

[0052] v2 = h1 * v1 / h3

[0053] The formula for calculating the synchronous moving speed v3 of multiple clamping stations in a multi-station clamping device is as follows:

[0054] v3 = h2 * v1 / h3.

[0055] Preferably, the bottom of each of the multiple straightening stations of the multi-station straightening equipment is equipped with a first distance sensor. The multiple first distance sensors are connected to a host computer. The host computer is used to compare the collected values ​​of the multiple first distance sensors and select the minimum value as the shortest vertical distance h1 between the multi-station straightening equipment and the circumferential side of the half-shaft.

[0056] Preferably, a second distance sensor is installed at one of the clamping stations of the multi-station clamping device, facing the end of the half shaft. The second distance sensor is connected to the host computer, and the host computer calculates the horizontal distance h2 between the multiple clamping stations of the multi-station clamping device and the end of the half shaft based on the data collected by the second distance sensor.

[0057] Preferably, both the first and second ranging sensors start working after the first infrared sensor is triggered, a triggering method that saves energy.

[0058] Preferably, the host computer is also connected to encoders for collecting the operating speed of the multi-station conveying equipment, the synchronous moving speed of multiple straightening stations of the multi-station straightening equipment, and the synchronous moving speed of multiple clamping stations of the multi-station clamping equipment. The host computer controls the corresponding operating speed according to the calculation results, and then judges whether the operating speed is the calculated speed or the set speed according to the data collected by the encoder. If not, it further adjusts until the calculated speed or the set speed is reached, so as to achieve the purpose of closed-loop control.

[0059] S4. When any one of the straightening stations contacts the half-shaft, the multi-station straightening equipment stops moving down synchronously, and the multiple straightening stations operate to straighten the corresponding half-shafts in sequence.

[0060] Preferably, in step S4, when one of the straightening stations contacts the half-shaft, the straightening station, the half-shaft, the contactor, and the power supply form a circuit. The contactor is triggered and sends a contact command to the host computer. The host computer simultaneously sends a stop synchronous descent command and a straightening command to the multi-station straightening equipment, and multiple straightening stations perform straightening simultaneously.

[0061] S5. When the detector corresponding to the half-shaft detects that the perpendicularity of the current half-shaft has reached the set perpendicularity, it will upload the qualified signal to the host computer, and the host computer will send a stop work command to the straightening station corresponding to this half-shaft.

[0062] S6. When multiple half-shafts are qualified, the host computer sends an uplink command to the multi-station straightening equipment. Multiple straightening stations move uplink synchronously, while the multi-station conveyor moves uplink to support the multiple half-shafts.

[0063] S7. The multi-station clamping station simultaneously releases multiple half-shafts. Under the action of the multi-station conveying equipment, the multiple half-shafts are conveyed to the next process. At the same time, the multi-station conveying equipment transfers the next batch of multiple half-shafts to the bottom of the multi-station straightening equipment.

[0064] S8, repeat steps S3-S7.

[0065] Therefore, the present invention adopts the above-mentioned multi-station automotive half-shaft straightening process, which allows multiple stations to be operated simultaneously, thereby improving the straightening efficiency.

[0066] 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 multi-station automotive axle shaft straightening process, characterized by: The method comprises the following steps: S1, the plurality of semi-axles after low-temperature tempering is transmitted to the multi-station transmission equipment; S2, the multi-station transmission equipment drives the plurality of semi-axles to move towards the multi-station straightening equipment; S3, the plurality of semi-axles is respectively aligned with the plurality of straightening stations of the multi-station straightening equipment, the plurality of pressing stations of the multi-station pressing equipment respectively presses the plurality of semi-axles, and the plurality of straightening stations of the multi-station straightening equipment and the plurality of transmission stations of the multi-station transmission equipment are synchronously downward; Step S3 specifically comprises the following steps: S31, the plurality of semi-axles moves towards the multi-station straightening equipment under the action of the multi-station transmission equipment; S32, the head semi-axle in the plurality of semi-axles shields the first infrared sensor arranged on the multi-station straightening equipment away from the transmission direction of the multi-station transmission equipment, and the first infrared sensor sends a semi-axle start entering instruction to the upper computer; S33, the upper computer respectively sends a working instruction to the multi-station straightening equipment and the multi-station pressing equipment, and the plurality of straightening stations of the multi-station straightening equipment and the plurality of pressing stations of the multi-station pressing equipment are all moved towards the direction of the semi-axle; S34, the head semi-axle in the plurality of semi-axles shields the second infrared sensor arranged on the multi-station straightening equipment towards the transmission direction of the multi-station transmission equipment, and the second infrared sensor sends a semi-axle complete entering instruction to the upper computer, at this time, one of the straightening stations of the multi-station straightening equipment contacts the circumferential side of the semi-axle and the plurality of pressing stations of the multi-station pressing equipment synchronously presses the two ends of the semi-axle; Assuming that the shortest vertical distance between the multi-station straightening equipment and the circumferential side of the semi-axle is h1, the horizontal distance between the plurality of pressing stations of the multi-station pressing equipment and the end of the semi-axle is h2, the transmission speed of the multi-station transmission equipment is v1, and the horizontal distance between the tail semi-axle of the plurality of semi-axles and the multi-station straightening equipment is h3, then the calculation formula of the synchronous moving speed v2 of the plurality of straightening stations of the multi-station straightening equipment is as follows: ； The calculation formula of the synchronous moving speed v3 of the plurality of pressing stations of the multi-station pressing equipment is as follows: ； S4, when any straightening station contacts the semi-axle, the multi-station straightening equipment stops synchronous downward, and the plurality of straightening stations respectively act to straighten the corresponding semi-axle in turn; S5, when the detector corresponding to the semi-axle detects that the perpendicularity of the current semi-axle reaches the set perpendicularity, a qualified signal is uploaded to the upper computer, and the upper computer sends a stop working instruction to the straightening station corresponding to the semi-axle; S6, when the plurality of semi-axles are all qualified, the upper computer sends an upward instruction to the multi-station straightening equipment, the plurality of straightening stations are synchronously upward, and the multi-station transmission equipment is upward, supporting the plurality of semi-axles; S7, the plurality of pressing stations synchronously loosen the plurality of semi-axles, and the plurality of semi-axles are transmitted to the next process under the action of the multi-station transmission equipment, and the multi-station transmission equipment transfers the next batch of plurality of semi-axles to the lower side of the multi-station straightening equipment; S8, the steps S3-S7 are cycled.

2. The multi-station automobile semi-axle straightening process according to claim 1, characterized in that: The temperature of the plurality of semi-axles in step S1 is 180℃; The plurality of semi-axles in step S1 are arranged in a linear array on the multi-station transmission equipment, and a straightening gap is left between adjacent two semi-axles.

3. A multi-station straightening process for automotive axle shafts as claimed in claim 2, wherein: The bottom end of each straightening station of the multi-station straightening device is provided with a first distance measuring sensor, and the plurality of first distance measuring sensors are connected to the upper computer.

4. The multi-station straightening process of claim 3, wherein: The second distance measuring sensor is connected to the upper computer, and the upper computer obtains the horizontal distance h2 between the plurality of pressing stations of the multi-station pressing device and the end of the half shaft according to the collection value of the second distance measuring sensor.

5. A multi-station straightening process for automotive axle shafts as claimed in claim 4, wherein: The first distance measuring sensor and the second distance measuring sensor start working after the first infrared sensor is triggered.

6. The multi-station straightening process of claim 1, wherein: The upper computer is also connected to the encoders for collecting the running speed of the multi-station conveying device, the synchronous moving speed of the plurality of straightening stations of the multi-station straightening device, and the synchronous moving speed of the plurality of pressing stations of the multi-station pressing device.

7. The multi-station straightening process of claim 1, wherein: When one of the straightening stations contacts the half shaft in step S4, the straightening station, the half shaft, the contactor and the power supply form a loop, the contactor triggers and sends a contact instruction to the upper computer, the upper computer simultaneously sends a stop synchronous descending instruction and a straightening instruction to the multi-station straightening device, and the plurality of straightening stations simultaneously straighten.

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