Transfer assembly line for automobile chassis steering knuckle production process and control method

Abstract

The invention belongs to the technical field of part casting and machining, and particularly relates to a transfer assembly line for an automobile chassis steering knuckle production process and a control method.The transfer assembly line comprises an input conveying belt, an output conveying belt and a transfer detection mechanism, and steering knuckles are conveyed to the input end of the transfer detection mechanism through the input conveying belt; the rotary positioning clamp clamps the steering knuckle blank and rotates to a vertical state, the steering knuckle blank swings and is positioned under the gravity effect of the center of mass of the steering knuckle blank, the transfer detection mechanism further comprises a detection sensor, and the detection sensor abuts against the steering knuckle blank through the translation mechanism to complete detection. The invention further discloses a control method of the assembly line, the steering knuckle workblank can rotate relative to the rotary positioning clamp, when the rotary positioning clamp swings to the vertical state, the steering knuckle workblank rotates and is matched with the position of the detection sensor, after detection is completed, the workblank can be released through loosening of the rotary positioning clamp, and the production efficiency is improved. Therefore, on-line continuous detection is achieved, and the device can meet the requirement of mass production.

Description

Technical Field

[0001] This invention belongs to the field of parts casting and processing technology, specifically relating to a transfer production line and control method for the production process of automotive chassis steering knuckles. Background Technology

[0002] The steering knuckle, also known as the steering knuckle, is a key component of the automotive chassis system. It connects the wheels and suspension, bearing and transmitting the complex loads generated during vehicle movement. Currently, steering knuckles are generally manufactured using sand casting. Before machining after casting, the blank needs to be inspected. Because the tie points of the steering rod and shock absorbers are located at the ends of the metal flow direction during casting, and because they haven't been finished, the inspection focuses on determining the presence of these tie points. If they are missing, the blank is remelted and recast. Current inspection relies mainly on manual observation. However, the blank still retains some residual heat, posing a risk of burns during close inspection, thus limiting the efficiency of steering knuckle inspection. Furthermore, after inspection, the blank needs to be repositioned and transported to provide better loading conditions for subsequent automated machining. Summary of the Invention

[0003] To address the problems existing in the prior art, the present invention provides a transfer production line and control method for the production process of automotive chassis steering knuckles, which enables online detection during the transfer of steering knuckle blanks, reduces personnel input, and improves the transfer efficiency of steering knuckle blanks.

[0004] The specific technical solution adopted in this invention is as follows:

[0005] A transfer production line for automobile chassis steering knuckle manufacturing includes an input conveyor belt, an output conveyor belt, and a transfer and inspection mechanism. The transfer and inspection mechanism includes a base and a rotary positioning clamp mounted on the base. The rotary positioning clamp has a degree of freedom of rotation relative to the base via a drive motor. A steering knuckle blank is fed to the input end of the transfer and inspection mechanism via the input conveyor belt. The rotary positioning clamp holds the steering knuckle blank and rotates it to a vertical position. The steering knuckle blank is positioned by swinging under its own center of gravity. The transfer and inspection mechanism also includes a detection sensor. The detection sensor approaches the steering knuckle blank via a translation mechanism to complete the inspection.

[0006] The rotary positioning clamp includes a rotating disk, a slide seat, a connecting drive device, and a first arm and a second arm. The slide seat is vertically mounted on a base and has a grooved slide. The connecting drive device includes a connecting block and a connecting telescopic cylinder. The grooved slide on the slide seat has a notch. The connecting block has the freedom of movement to insert into the notch via the connecting telescopic cylinder. The grooved slide forms a closed circular groove structure via a groove on the connecting block. The rotating end of the drive motor passes through the center of the slide seat and is fixedly connected to the rotating disk. The rotating disk has a clamping rail. The first arm and the second arm are slidably connected to the clamping rail. The first arm and the second arm are each equipped with a pulley, which is inserted into the grooved slide.

[0007] The connecting drive device further includes a connecting groove, and the connecting block has a sliding degree of freedom to reciprocate and move up and down within the connecting groove by means of a connecting telescopic cylinder.

[0008] The first arm is provided with an upper limit post, which has a degree of freedom to rotate around its own axis. The second arm is provided with a lower limit cylinder, which has a degree of freedom to rotate around its own axis.

[0009] The first arm is also equipped with an electromagnetic attraction device, which abuts against and limits the extension end of the tie point on the center of mass side of the steering knuckle blank.

[0010] The clamping position of the rotary positioning clamp on one side of the input conveyor belt is the input end of the transfer detection mechanism. A floating conveyor belt is also provided at the input end. The floating conveyor belt connects the input conveyor belt and the clamping position of the rotary positioning clamp. The floating conveyor belt is set on the frame. A guide rod is provided on the frame. The floating conveyor belt and the guide rod are slidably connected. A floating spring is also fitted on the guide rod. The floating conveyor belt is floatingly connected to the frame by means of the floating spring.

[0011] The floating conveyor belt includes two parallel belt surfaces with a clearance groove between them; auxiliary guide plates are provided on both sides of the floating conveyor belt; and a limit block is provided on the output side of the floating conveyor belt.

[0012] The output conveyor belt is also equipped with a pusher telescopic cylinder.

[0013] It also includes a control method for a transfer assembly line used in the production process of automotive chassis steering knuckles, the method comprising the following steps:

[0014] S1. The steering knuckle blank output from the previous process is sent to the input conveyor belt and then to the floating conveyor belt. The gate and riser of the steering knuckle blank are located in the clearance groove.

[0015] S2. The first arm of the rotary positioning clamp is lifted by the connecting drive device. After the steering knuckle blank is in place, the first arm descends and forms a clamp with the second arm.

[0016] S3. Rotate the positioning clamp to the vertical position. The steering knuckle blank swings into place under the action of its center of gravity. The detection sensor extends and approaches the steering knuckle blank to complete the detection.

[0017] S4. The rotary positioning clamp continues to rotate to the side of the output conveyor belt, the connecting drive device lifts the second arm, the steering knuckle blank falls onto the output conveyor belt, and is transferred to the machining process by means of the output conveyor belt;

[0018] S5. When the inspected steering knuckle blank passes the pusher cylinder, if the inspection result is qualified, the pusher cylinder will not move; otherwise, the pusher cylinder will push the steering knuckle blank off.

[0019] In step S2, after the first arm descends and clamps with the second arm, the electromagnetic attraction device is energized to generate magnetism.

[0020] The beneficial effects of this invention are:

[0021] This invention uses a rotary positioning clamp to hold the steering knuckle blank. The clamping position is at the bearing hole that has not yet been machined after casting. The upper limit post abuts against the bearing hole plane, and the lower limit sleeve fits the remaining section of the gating and riser on the other side, allowing the steering knuckle blank to rotate relative to the rotary positioning clamp. When the rotary positioning clamp swings to a vertical position, the steering knuckle blank rotates and matches the position of the detection sensor. After the detection is completed, the blank can be released by releasing the rotary positioning clamp, thus realizing online continuous detection and adapting to the needs of mass production. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is an enlarged schematic diagram of the transport and testing facility.

[0024] Figure 3 A schematic diagram showing the interaction between the pulley and the grooved slide when the rotary positioning clamp is engaged;

[0025] Figure 4 A schematic diagram showing the interaction between the pulley and the grooved slide when the rotary positioning clamp is released;

[0026] Figure 5 This is an enlarged schematic diagram of the base of the transport and testing mechanism;

[0027] Figure 6 This is a schematic diagram showing the fit between a steering knuckle blank and a floating conveyor belt.

[0028] Figure 7 This is a schematic diagram of a floating conveyor belt viewed from above.

[0029] Figure 8 A schematic diagram showing the layout and location of the detection sensors;

[0030] Figure 9 This is a schematic diagram showing the state before the rotary positioning clamp holds the object.

[0031] Figure 10 This is a schematic diagram showing the first arm pressing down on the floating conveyor belt.

[0032] Figure 11 This is a schematic diagram showing the state when the rotary positioning clamp is in use;

[0033] Figure 12 A schematic diagram showing the rotating positioning clamp in its upright position;

[0034] Figure 13 This is a schematic diagram showing the interaction between the rotary positioning clamp and the output conveyor belt.

[0035] In the attached diagram, 1. Input conveyor belt, 2. Output conveyor belt, 3. Base, 4. Detection sensor, 5. Translation mechanism, 6. Rotary disk, 7. Slide seat, 8. First arm, 9. Second arm, 10. Groove slide, 11. Connecting block, 12. Connecting telescopic cylinder, 13. Clamping track, 14. Pulley, 15. Connecting groove, 16. Upper limit post, 17. Lower limit cylinder, 18. Electromagnetic attraction device, 19. Floating conveyor belt, 20. Guide rod, 21. Floating spring, 22. Clearance groove, 23. Guide plate, 24. Limiting block, 25. Pushing telescopic cylinder, 26. Adapter seat. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0037] Specific implementation examples Figure 1 and Figure 2 As shown, this invention is a transfer assembly line for the production process of automotive chassis steering knuckles, including an input conveyor belt 1, an output conveyor belt 2, and a transfer and detection mechanism. The transfer and detection mechanism includes a base 3 and a rotary positioning clamp mounted on the base 3. The rotary positioning clamp has a degree of freedom of rotation relative to the base 3 by means of a drive motor. The drive motor is a stepper motor or a servo motor that can control the rotation angle. The steering knuckle blank is sent to the input end of the transfer and detection mechanism by means of the input conveyor belt 1. The rotary positioning clamp holds the steering knuckle blank and rotates it to a vertical position. The steering knuckle blank swings and positions itself under the action of its own center of gravity. The transfer and detection mechanism also includes a detection sensor 4. The detection sensor 4 approaches the steering knuckle blank with the help of a translation mechanism 5 to complete the detection.

[0038] This invention eliminates the need for personnel to approach during inspection, reducing the risk to workers. It employs a rotary positioning clamp to hold the steering knuckle blank at the unprocessed bearing hole after casting. An upper limit post 16 abuts against the bearing hole plane, while a lower limit cylinder 17 fits onto the remaining section of the gating system on the other side. This allows the steering knuckle blank to rotate relative to the rotary positioning clamp. When the clamp swings to a vertical position, the blank rotates, aligning with the position of the detection sensor 4. After inspection, the blank can be released by releasing the rotary positioning clamp, thus achieving continuous online inspection and adapting to mass production needs.

[0039] Furthermore, such as Figure 3 and Figure 4 As shown, the rotary positioning clamp includes a rotating disk 6, a slide seat 7, a connecting drive device, and a first arm 8 and a second arm 9. The slide seat 7 is vertically mounted on the base 3. The slide seat 7 is provided with a grooved slide 10. The connecting drive device includes a connecting block 11 and a connecting telescopic cylinder 12. The grooved slide 10 on the slide seat 7 is provided with a notch. The connecting block 11 has the freedom of movement to be inserted into the notch by means of the connecting telescopic cylinder 12. The grooved slide 10 forms a closed circular groove structure by means of the groove provided on the connecting block 11. The rotating end of the drive motor passes through the center of the slide seat 7 and is fixedly connected to the rotating disk 6. The rotating disk 6 is provided with a clamping rail 13. The first arm 8 and the second arm 9 are slidably connected to the clamping rail 13 respectively. The first arm 8 and the second arm 9 are respectively provided with pulleys 14, and the pulleys 14 are inserted into the grooved slide 10.

[0040] Figure 3 and Figure 4 The diagram shows the first arm 8 and the second arm 9 after being cut along a vertical section. The first arm 8 and the second arm 9 have the freedom to slide on the clamping track 13. By sliding the first arm 8 and the second arm 9 relative to the clamping track 13, the first arm 8 and the second arm 9 can form a clamping or loosening engagement.

[0041] When the first arm 8 and the second arm 9 are in a clamping state, such as Figure 3 As shown, at this time, the gap between the connecting block 11 and the grooved slide 10 is filled, so that the grooved slide 10 forms a closed ring. In this state, when the rotating disk 6 drives the first arm 8 and the second arm 9 to rotate, since the pulleys 14 of the first arm 8 and the second arm 9 are both in the annular groove of the grooved slide 10, the two always remain clamped during the rotation.

[0042] When the first arm 8 and the second arm 9 are detached, the drive motor swings the first arm 8 and the second arm 9 to the left or right, such as... Figure 11 or Figure 13 As shown, the corresponding position of pulley 14 at this time is as follows: Figure 3As shown, the pulley 14 of the first arm 8 or the second arm 9 is located in the groove of the connecting block 11. As the connecting telescopic cylinder 12 retracts, the connecting block 11 is lifted, and the pulley 14 in the groove of the connecting block 11 moves upward accordingly. At this time, because the drive motor stops and is guided by the clamping rail 13, the first arm 8 or the second arm 9 moves upward, thereby achieving release. Figure 4 As shown.

[0043] Figure 5 In the middle, the first arm 8 and the second arm 9 are both hidden. The first arm 8 and the second arm 9 are respectively connected to the clamping rail 13 by means of the adapter 26. The pulley 14 is set on the adapter 26. A follower block for limiting is set on one side of the rotating disk 6. The follower block and the limiting post set on both sides of the base 3 form an abutment limit. The rotary positioning clamp formed by the first arm 8 and the second arm 9 swings back and forth between the two limiting posts by means of the rotating seat, thereby realizing the clamping and inspection of the automobile steering knuckle blank one by one.

[0044] Furthermore, such as Figure 5 As shown, the connecting drive device also includes a connecting groove 15, and the connecting block 11 has a sliding degree of freedom to reciprocate and move up and down in the connecting groove 15 by means of a connecting telescopic cylinder 12.

[0045] Figure 5 For ease of description, only the connecting block 11 is lifted without the pulley 14, and it can be seen that the connecting block 11 is located in the connecting groove 15.

[0046] Furthermore, such as Figure 2 As shown, the first arm 8 is provided with an upper limit post 16, which has a degree of freedom to rotate around its own axis, and the second arm 9 is provided with a lower limit cylinder 17, which has a degree of freedom to rotate around its own axis.

[0047] By using the upper limit post 16 and lower limit cylinder 17, which have rotational degrees of freedom, to clamp the steering knuckle blank, the complex-shaped steering knuckle blank can be inspected in a relatively uniform posture under the influence of its own center of gravity. Figure 8 As shown, this is the possible posture of the steering knuckle blank after the swing ends.

[0048] like Figure 8 As shown, the first arm 8 is also provided with an electromagnetic attraction device 18, which abuts and limits the extension end of the tie point on the center of mass side of the steering knuckle blank.

[0049] When the electromagnetic attraction device 18 is powered on, it generates magnetism, and the center of mass of the steering knuckle blank swings back and forth under the action of its own gravity. During the swinging process, when the extension end of the tie point on one side of the center of mass of the steering knuckle blank swings toward the electromagnetic attraction device 18, the steering knuckle blank is attracted by the magnetism of its armature, which avoids repeated shaking and facilitates inspection. The electromagnetic attraction device 18 described in this invention is an electromagnet.

[0050] If the steering knuckle's structural design prevents the blank from having a suitable tie point on one side of its center of mass, the casting sand mold design can be adjusted. A certain amount of excess material can be set at the longest tie point of the steering knuckle blank to adjust the center of mass to near the protruding end. The excess material can then be removed by machining.

[0051] As a parallel solution, if an aluminum alloy casting is used for the steering knuckle blank, the electromagnetic attraction device 18 can be replaced with a limiting component and brought close to the protruding end of the corresponding tie point. The limiting component is used to abut and limit the steering knuckle blank. After the steering knuckle blank stops swinging under the action of gravity, it can be detected by the sensor.

[0052] The clamping position of the rotary positioning clamp on one side of the input conveyor belt 1 is the input end of the transfer detection mechanism. A floating conveyor belt 19 is also provided at the input end. The floating conveyor belt 19 is connected between the input conveyor belt 1 and the clamping position of the rotary positioning clamp. The floating conveyor belt 19 is set on the frame. A guide rod 20 is provided on the frame. The floating conveyor belt 19 and the guide rod 20 are slidably connected. A floating spring 21 is also fitted on the guide rod 20. The floating conveyor belt 19 is floatingly connected to the frame by means of the floating spring 21.

[0053] The floating conveyor belt 19 includes two parallel and spaced belt surfaces, with a clearance groove 22 between the belt surfaces; auxiliary guide plates 23 are provided on both sides of the floating conveyor belt 19.

[0054] like Figure 7 As shown, a limit block 24 is provided on the output side of the floating conveyor belt 19. When the steering knuckle blank moves to the limit block 24, its journal abuts against the limit block 24 to limit its movement, thus positioning it and preventing it from falling.

[0055] The input conveyor belt 1 of the present invention also includes two parallel belt surfaces, with a clearance groove 22 formed between the two belt surfaces. After the steering knuckle blank is output after the sand is removed in the previous stage, it falls onto the input conveyor belt 1, which is also equipped with an auxiliary guide plate 23. Personnel can be positioned to use an iron rod to pry the steering knuckle blank so that the gating and riser of the steering knuckle blank is in the clearance groove 22, thus avoiding close contact between personnel and the blank.

[0056] Furthermore, such as Figure 1As shown, the output conveyor belt 2 is also equipped with a pusher telescopic cylinder 25.

[0057] The input conveyor belt 1 and the output conveyor belt 2 each include two parallel and spaced belt surfaces. The gap between the two belt surfaces forms a structure that avoids and passes through the gating gate, the first arm 8, and the second arm 9 of the blank.

[0058] The present invention also includes a control method for a transfer assembly line used in the production process of automotive chassis steering knuckles, the method comprising the following steps:

[0059] S1. The steering knuckle blank output from the previous process is sent to the input conveyor belt 1. With the help of manual labor, the gate of the steering knuckle blank is transferred into the relief groove 22 of the input conveyor belt 1 using iron rods and the like. It is then sent to the floating conveyor belt 19 along with the input conveyor belt 1. At this time, the gate of the steering knuckle blank is located in the relief groove 22 of the floating conveyor belt 19.

[0060] S2. The first arm 8 of the rotary positioning clamp is lifted by means of the connecting drive device. After the steering knuckle blank is in place, the first arm 8 is lowered and clamped with the second arm 9.

[0061] The rotating end of the upper limit post 16 is blocked before the electromagnetic attraction device 18, before the steering knuckle blank is in place, such as Figure 9 As shown, at this time, the first arm 8 is raised, and the height of the upper limit post 16 is slightly lower than the height of the extension end of the steering knuckle tie point, so that the extension end interferes with the upper limit post 16 when it passes the upper limit post 16. Since the upper limit post 16 has a degree of rotational freedom, it can be pushed to one side to avoid it directly hitting the electromagnetic attraction device 18 and causing the steering knuckle blank to tip over.

[0062] The initial height of the floating conveyor belt 19 of the present invention is higher than the height of the lower limit cylinder 17. When the steering knuckle blank is in place, that is, after the limit block 24 intercepts the steering knuckle blank, the upper limit post 16 descends with the first arm 8. The upper limit post 16 first abuts against the unprocessed bearing hole plane of the steering knuckle blank, and then presses the steering knuckle blank and the floating conveyor belt 19, so that the approximately columnar gating gate is inserted into the lower limit cylinder 17. The lower limit cylinder 17 is configured with a funnel-shaped guide structure inside, so that after the gating gate is inserted, the axes of the upper limit post 16, the lower limit cylinder 17 and the steering knuckle blank are approximately on a straight line, which facilitates the accuracy of subsequent swing.

[0063] S3. For example Figure 12 As shown, the rotary positioning clamp rotates to the vertical position, and the steering knuckle blank swings into place under the action of its center of gravity. The detection sensor 4 extends and approaches the steering knuckle blank to complete the detection.

[0064] like Figure 8The figure shows a layout schematic diagram of the sensors. The sensors are Hall sensors. Since the overhanging end on the side where the centroid is located may be on the left or right side of the electromagnetic attraction device 18, and the width of the overhanging end is generally small, a group of sensors A and a group of sensors B are set to qualitatively detect the presence or absence of the corresponding overhanging ends on the steering knuckle blank. During the detection, the electromagnetic attraction device 18 can be powered off briefly to avoid magnetic field interference.

[0065] When all the sensors in the same group of sensors A or B are triggered, it is qualified; otherwise, it is unqualified.

[0066] S4. As Figure 13 shown, the rotary positioning clamp continues to rotate to one side of the output conveyor belt 2, the connecting drive device lifts the second arm 9, the steering knuckle blank falls on the output conveyor belt 2, and is transported to the machining process by means of the output conveyor belt 2;

[0067] At this time, the pulley 14 of the second arm 9 is located in the groove of the connecting block 11. With the lifting of the connecting block 11, the second arm 9 is lifted. The lower limit cylinder 17 is located on the second arm 9. When the lower limit cylinder 17 releases the limit, the steering knuckle blank cannot be balanced only by the upper limit column 16. And through the swing of the first arm 8, the steering knuckle blank contacts the output conveyor belt 2, so that the output conveyor belt 2 transports the steering knuckle blank away. Since the steering knuckle blank is positioned during the detection, the posture of the steering knuckle blank discharged from the transfer detection device on the output conveyor belt 2 is roughly similar, which is convenient for subsequent machining processes to grab and load for positioning and identification, providing a basic condition for automated processing.

[0068] S5. When the detected steering knuckle blank passes through the pushing telescopic cylinder 25, if the detection result is qualified, the pushing telescopic cylinder 25 does not act; otherwise, the pushing telescopic cylinder 25 pushes the steering knuckle blank down.

[0069] To improve the pushing accuracy of the pushing telescopic cylinder 25, when the previous steering knuckle blank does not pass through the pushing telescopic cylinder 25 along with the output conveyor belt 2, the next steering knuckle blank can be detected on the transfer detection mechanism, but is not released to the output conveyor belt 2 for the time, so that only one group of steering knuckles exists on the output conveyor belt 2, avoiding discharging mistakes.

[0070] In the step S2, after the first arm 8 descends and forms a clamp with the second arm 9, the electromagnetic attraction device 18 is powered on to generate magnetism.

Claims

1. A transfer assembly line for the production process of automotive chassis steering knuckles, comprising an input conveyor belt (1), an output conveyor belt (2), and a transfer and inspection mechanism, characterized in that: The transfer and testing mechanism includes a base (3) and a rotary positioning clamp set on the base (3). The rotary positioning clamp has a degree of freedom to rotate relative to the base (3) by means of a drive motor. The steering knuckle blank is sent to the input end of the transfer and testing mechanism by means of an input conveyor belt (1). The rotary positioning clamp holds the steering knuckle blank and rotates it to a vertical state. The steering knuckle blank swings and is positioned under the action of its own center of gravity. The transfer and testing mechanism also includes a detection sensor (4). The detection sensor (4) approaches the steering knuckle blank by means of a translation mechanism (5) to complete the detection.

2. The transfer assembly line for automobile chassis steering knuckle production process according to claim 1, characterized in that: The rotary positioning clamp includes a rotating disk (6), a slide seat (7), a connecting drive device, a first arm (8), and a second arm (9). The slide seat (7) is vertically mounted on the base (3), and a grooved slide (10) is provided on the slide seat (7). The connecting drive device includes a connecting block (11) and a connecting telescopic cylinder (12). The grooved slide (10) on the slide seat (7) has a notch, and the connecting block (11) has the freedom of movement to insert into the notch by means of the connecting telescopic cylinder (12). The grooved slide (10) forms a closed circular groove structure by means of the groove provided on the connecting block (11). The rotating end of the drive motor passes through the center of the slide seat (7) and is fixedly connected to the rotating disk (6). The rotating disk (6) is provided with a clamping track (13). The first arm (8) and the second arm (9) are slidably connected to the clamping track (13). The first arm (8) and the second arm (9) are respectively provided with pulleys (14). The pulleys (14) are inserted into the grooved slide (10).

3. The transfer assembly line for automobile chassis steering knuckle production process according to claim 2, characterized in that: The connecting drive device further includes a connecting groove (15), and the connecting block (11) has a sliding degree of freedom to move back and forth in the connecting groove (15) by means of a connecting telescopic cylinder (12).

4. The transfer assembly line for automobile chassis steering knuckle production process according to claim 2, characterized in that: The first arm (8) is provided with an upper limit post (16), which has a degree of freedom to rotate around its own axis. The second arm (9) is provided with a lower limit cylinder (17), which has a degree of freedom to rotate around its own axis.

5. The transfer assembly line for automobile chassis steering knuckle production process according to claim 4, characterized in that: The first arm (8) is also provided with an electromagnetic attraction device (18), which abuts against and limits the extension end of the tie point on the side of the center of mass of the steering knuckle blank.

6. The transfer assembly line for automobile chassis steering knuckle production process according to claim 1, characterized in that: The clamping position of the rotary positioning clamp on one side of the input conveyor belt (1) is the input end of the transfer detection mechanism. A floating conveyor belt (19) is also provided at the input end. The floating conveyor belt (19) is connected between the input conveyor belt (1) and the clamping position of the rotary positioning clamp. The floating conveyor belt (19) is set on the frame. A guide rod (20) is provided on the frame. The floating conveyor belt (19) and the guide rod (20) form a sliding connection. A floating spring (21) is also fitted on the guide rod (20). The floating conveyor belt (19) is floatingly connected to the frame by means of the floating spring (21).

7. The transfer assembly line for automobile chassis steering knuckle production process according to claim 6, characterized in that: The floating conveyor belt (19) includes two parallel belt surfaces, with a clearance groove (22) between the belt surfaces; auxiliary guide plates (23) are provided on both sides of the floating conveyor belt (19); and limit blocks (24) are provided on the output side of the floating conveyor belt (19).

8. The transfer assembly line for automobile chassis steering knuckle production process according to claim 1, characterized in that: The output conveyor belt (2) is also equipped with a pusher telescopic cylinder (25).

9. A control method for a transfer assembly line in the production process of automotive chassis steering knuckles, based on the transfer assembly line in the production process of automotive chassis steering knuckles as described in claim 1, characterized in that: Includes the following steps: S1. The steering knuckle blank output from the previous process is sent to the input conveyor belt (1) and then sent to the floating conveyor belt (19) along with the input conveyor belt (1). The gating and riser of the steering knuckle blank is located in the relief groove (22). S2. The first arm (8) of the rotary positioning clamp is lifted by means of the connecting drive device. After the steering knuckle blank is in place, the first arm (8) is lowered and clamped with the second arm (9). S3. Rotate the positioning clamp to the vertical position, and the steering knuckle blank swings into place under the action of its center of gravity. The detection sensor (4) extends and approaches the steering knuckle blank to complete the detection. S4. The rotary positioning clamp continues to rotate to the side of the output conveyor belt (2), the connecting drive device lifts the second arm (9), the steering knuckle blank falls on the output conveyor belt (2), and is transferred to the machining process by means of the output conveyor belt (2); S5. When the inspected steering knuckle blank passes through the pusher telescopic cylinder (25), if the inspection result is qualified, the pusher telescopic cylinder (25) will not move; otherwise, the pusher telescopic cylinder (25) will push the steering knuckle blank off.

10. The control method according to claim 9, characterized in that: In step S2, after the first arm (8) descends and clamps with the second arm (9), the electromagnetic attraction device (18) is energized and generates magnetism.

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