Limiting conveying device for grinding outer surface of steering drag link

Abstract

The invention provides a limiting conveying device for grinding the outer surface of a steering drag link, which comprises a group of side plates, a first conveying mechanism arranged at the left end between the group of side plates, a second conveying mechanism arranged at the right end between the group of side plates, and a linkage roller arranged at the central position between the group of side plates, a limiting mechanism is arranged between the first conveying mechanism and the linkage roller in the center of the group of side plates; by integrating the synchronous conveying system and the multifunctional limiting mechanism, the problem that an existing conveying device cannot adjust the position of the steering drag link and reverse the steering drag link is effectively solved.

Description

Technical Field

[0001] This invention relates to a limiting material feeding device for grinding the outer surface of a steering tie rod, belonging to the field of automotive parts processing technology. Background Technology

[0002] The steering tie rod is a core transmission component of an automotive mechanical steering system, playing a crucial role in transmitting steering torque within the steering mechanism. This component is made of special steel and transmits the movement of the steering rocker arm to the steering trapezoidal arm or steering knuckle arm via a hinged structure at both ends, possessing the ability to withstand both tensile and compressive loads.

[0003] After machining, automotive steering tie rods require grinding. This grinding process necessitates the use of a material conveying device. Existing conveying devices cannot adjust or reverse the position of the steering tie rods during transport, making it inconvenient to handle the material during subsequent grinding. Therefore, this invention proposes a limiting material conveying device for grinding the outer surface of steering tie rods. Summary of the Invention

[0004] Based on the above background, the purpose of this invention is to provide a limiting material feeding device for grinding the outer surface of a steering tie rod, thereby solving the problems in the prior art.

[0005] This invention provides the following technical solutions: A limiting conveying device for grinding the outer surface of a steering tie rod includes a set of side plates. A first conveying mechanism is located at the left end between the side plates, used to convey a steering tie rod whose direction has not been adjusted. A second conveying mechanism is located at the right end between the side plates, used to convey a steering tie rod whose direction has been adjusted. A linkage roller is located at the center between the side plates, used to link the first and second conveying mechanisms, allowing a single power source to simultaneously drive both mechanisms, reducing energy consumption. A limiting mechanism is located at the center of the side plates between the first conveying mechanism and the linkage roller, used to adjust the position of the steering tie rod and reverse its direction, changing its direction from parallel to the first auxiliary support roller to perpendicular to the second conveying roller, and transitioning the steering tie rod from vertical conveying by the first conveying mechanism to horizontal conveying by the second conveying mechanism. During this process, the horizontal and vertical directions are kept constant relative to the horizontal plane of each conveyor belt.

[0006] The first conveying mechanism includes a first drive roller, several first auxiliary support rollers, and a set of first conveyor belts. The first drive roller is located on the left side between the side plates and is used to drive the first conveyor belt for conveying. Several first auxiliary support rollers are evenly distributed on the right side between the side plates between the first drive rollers and are used to provide rotational support for the first conveyor belt, preventing the first conveyor belt from rolling and shifting due to the gravity of the steering tie rod. The rotating parts of the first drive roller and the first auxiliary support rollers are each composed of a set of transmission parts and a connecting part. The set of transmission parts is located on both sides of the connecting part, and the connecting part is fixedly connected to the transmission part. A set of first conveyor belts is respectively sleeved on the set of transmission parts of the first drive roller and the first auxiliary rollers. The right end of the set of first conveyor belts is sleeved on both sides of the rotating part of the linkage roller, so that the movement of the first conveyor belt under the drive of the first drive roller can drive the linkage roller to rotate synchronously. The second conveying mechanism includes several second drive rollers and a second conveyor belt. The several second drive rollers are equidistantly distributed between the side plates at the right end of the linkage roller. The rotating part of the second drive roller is provided with a sleeve part in the center. The second conveyor belt is sleeved on the sleeve part of the second drive roller. The sleeve part can restrict the conveying position of the second conveyor belt to always be located in the center of the second conveying mechanism. The left end part of the second conveyor belt is sleeved at the center of the rotating part of the linkage roller. By sleeved the second conveyor belt with the center part of the linkage roller, the second conveyor belt can be synchronously driven to move and convey the steering straight pull rod after reversing when the linkage roller rotates. The limiting mechanism includes a vertical plate, a lifting drive assembly, a lifting linkage assembly, a rotating device, a rotating plate, a limiting connecting plate, a limiting plate, and a lifting clamping assembly. The vertical plate is located between the rightmost first auxiliary support roller and the linkage roller in the first conveying mechanism between the side plates. The vertical plate provides the basic installation position for the limiting mechanism. The vertical plate is parallel to the first auxiliary support roller in the first conveying mechanism. The lifting drive assembly is installed on the end face of the vertical plate away from the first auxiliary support roller. The lifting drive assembly drives the lifting linkage assembly to rise and fall, thereby driving the rotating device, rotating plate, limiting connecting plate, limiting plate, and lifting clamping assembly to rise and fall synchronously. When it descends to the lowest point, the top surface of the rotating plate is lower than the top surface of the first conveyor belt. When it rises to the highest point, the output end of the rotating device is higher than the top surface of the first conveyor belt. The lifting linkage assembly is located on the side of the vertical plate closer to the first auxiliary support roller, and the lifting linkage assembly is connected to the lifting drive assembly. The lifting part is connected, and the rotating device is installed on the top of the lifting linkage assembly. Preferably, the rotating device is a rotary cylinder or a rotary motor. The rotation angle is 90° counterclockwise or 90° clockwise. When rotating 90° counterclockwise, the direction is reversed. When rotating 90° clockwise, it returns to the initial position before rotation and limits the steering tie rod. The rotating plate is installed on the top of the output end of the rotating device. The limiting connecting plate is fixedly connected to the top of the rotating plate on the side away from the first auxiliary support roller. The limiting plate is connected to the top of the limiting connecting plate. The top of the limiting plate is provided with a top plate. The lifting and clamping assembly is installed on the top plate. When the steering tie rod moves to the position between the top plate and the rotating plate, the lifting and clamping assembly lifts the steering tie rod and clamps it between the top plate and the lifting and clamping assembly to prevent the steering tie rod from falling or shifting during the reversal process. The end faces of the rotating plate, the limiting connecting plate, the limiting plate, and the top plate away from the first auxiliary support roller are on the same plane.

[0007] Preferably, the lifting drive assembly includes a set of end plates, which are fixedly installed on the end face of the vertical plate away from the first auxiliary support roller. The set of end plates is fixedly connected to the upper and lower ends of the vertical plate. A lifting drive device is installed on the lower end face of the lower end of the set of end plates. Preferably, the lifting drive device is a drive motor. When a drive motor is used, a threaded rod is connected to the output shaft of the drive motor through a coupling. The threaded rod is located between the end plates and is threadedly connected to the lifting block. A lifting block is installed on the output end of the lifting drive device. A set of limiting rods should also be provided on the lifting block. The top and bottom of the limiting rods are fixed to the inner sidewall of the set of end plates to prevent the lifting block from rotating during the lifting process. A set of connecting columns is vertically provided on the end face of the lifting block near the vertical plate. The set of connecting columns extends through the vertical plate to the end of the vertical plate near the first auxiliary support roller. The lifting linkage assembly is installed on the end of the set of connecting columns near the first auxiliary support roller.

[0008] Preferably, the lifting linkage assembly includes a lifting linkage block, which is mounted on a set of connecting columns. A mounting base is installed on the top of the lifting linkage block, and the rotating device is installed on the top of the mounting base.

[0009] Preferably, a groove extending through the front side of the rotating plate is formed on the top portion of the rotating plate near the first auxiliary support roller. The groove provides storage space for the initial position of the lifting bar, preventing the steering tie rod from being unable to be conveyed to the position between the rotating plate and the top plate due to obstruction by the lifting bar.

[0010] Preferably, the lifting and clamping assembly includes a set of lifting cylinders, which provide power for the lifting and lowering of the lifting bar, thereby enabling the lifting and clamping assembly to have a clamping state and a releasing state. In the clamping state, the steering tie rod is in the reversing process; in the releasing state, the steering tie rod is in the conveying process, moving to a position between the rotating plate and the top plate, or moving out of the position between the rotating plate and the top plate. The set of lifting cylinders is installed on the top of the top plate, and the output of the set of lifting cylinders extends through the top plate into the groove. A connecting lug is installed at the bottom end of the output shaft of the set of lifting cylinders, and the end face of the connecting lug near the first auxiliary support roller is provided with... A lifting bar is located within the groove. An auxiliary rubber roller, aligned with the rotation direction of the rubber roller, should be provided at the top of the groove away from the groove opening. An installation groove is provided at the top of the lifting bar, and several rubber rollers are rotatably arranged within the installation groove. The tops of these rubber rollers are higher than the top surface of the lifting bar. When the output shaft of the lifting cylinder is fully extended, the tops of these rubber rollers are higher than the top of the groove. The rubber rollers can prevent damage to the outer wall of the steering tie rod during clamping. Preferably, a rubber pad is bonded to the bottom of the top plate for better damage prevention. After the steering tie rod reverses direction, in the released state, the auxiliary rubber rollers can assist the steering tie rod in being transferred more smoothly onto the second conveyor belt.

[0011] Preferably, a position detection assembly is jointly installed on the top plate and the rotating plate. The position detection assembly includes a first fixed plate and an L-shaped plate. The first fixed plate is located on the rear end face of the rotating plate, and the L-shaped plate is fixedly connected to the top of the top plate near the first fixed plate. A position sensor is installed on both the first fixed plate and the L-shaped plate, and the position sensor is located on the limiting connecting plate near the first auxiliary support roller. The position sensor is preferably a photosensitive sensor, comprising a receiver and a transmitter. The receiver and transmitter are respectively installed on the first fixed plate and the L-shaped plate, and are aligned. When the steering tie rod moves to the portion between the rotating plate and the top plate, the steering tie rod blocks the light beam emitted by the transmitter, preventing the receiver from receiving the light beam, thereby performing position sensing and transmitting the signal to the electronic control system.

[0012] Preferably, a plurality of L-shaped support plates are provided on the opposite surfaces of a group of side plates, with each L-shaped support plate on a different side plate corresponding to the other. An outer connecting plate is provided on the end face of the L-shaped support plate located to the left of the limiting plate away from the side plate. A centering cylinder is installed on the end face of the outer connecting plate away from the side plate. The output shaft of the centering cylinder extends through the outer connecting plate to the position of the first conveyor belt. A centering connecting plate is installed on the output shaft of the centering cylinder. A centering push plate is installed on the end face of the centering connecting plate near the limiting plate. The end faces of the centering push plate and the centering connecting plate near the limiting plate are horizontal to the side of the limiting plate. The centering cylinder is designed so that when the steering tie rod moves to the position between the top plate and the rotating plate, the air intake of the centering cylinder drives the centering connecting plate and the centering push plate to move synchronously towards the center of the side plate. The centering push plate pushes the steering tie rod towards the center of the side plate for centering. During this process, the top of the rubber roller is driven by the lifting drive device to be higher than the top of the groove and simultaneously higher than the upper surface of the first conveyor belt. The steering tie rod is moved with the assistance of the rotation of the rubber roller, which can prevent the top of the rotating plate from obstructing the movement of the steering tie rod.

[0013] Preferably, the L-shaped support plate is clamped and fixed with a set of nuts, and the front and rear end faces of the vertical plate are provided with L-shaped fixing plates, which are fixed to the inner wall of the L-shaped support plate by a set of bolts.

[0014] Preferably, the roller shafts of the first drive roller, the first auxiliary support roller, the linkage roller, and the second transmission roller all pass through the side plate and are rotatably engaged with the side plate by bearings installed inside the bearing housing. The roller shaft at one end of the first drive roller passes through the bearing and extends to the outside of the bearing. The end of the first drive roller extending to the outside of the bearing is connected to a geared motor via a coupling. The geared motor is installed on the side plate.

[0015] Preferably, a cover structure is further provided between the set of side plates. The cover structure includes a fixed cover plate, a middle cover plate, a connecting cover plate, and two side cover plates. The fixed cover plate is fixedly connected to the end face of the set of side plates away from the second conveying mechanism. A middle cover plate is installed at the center of the end face of the fixed cover plate near the first conveying mechanism, covering the space between the set of first conveyor belts. Connecting cover plates are installed on both sides of the end face of the fixed cover plate near the first conveying mechanism, located between the first conveyor belt and the inner wall of the side plate. Two side cover plates are installed on the end face of the connecting cover plate away from the fixed cover plate, located between the second conveyor belt and the side plate. The cover structure can cover the gaps between the first conveyor belts, the gaps between the first conveyor belt and the side plate, and the gaps between the second conveyor belt and the side plate, preventing the steering tie rod from falling into these gaps during conveying and thus affecting the conveying process.

[0016] Preferably, the present invention shall include an external electrical control cabinet and an external display for the external electrical control cabinet. Each cylinder shall be connected to an external air source through a solenoid valve and an air pipe. The opening and closing of the solenoid valve shall be controlled by the electrical control system of the electrical control cabinet. The signal from the position sensor shall be transmitted to the detection circuit of the electrical control cabinet for processing, thereby detecting the position of the steering tie rod. The electrical control system shall control the operation of each motor and the solenoid valve.

[0017] Compared with the prior art, the present invention has the following advantages: This invention discloses a limiting material conveying device for grinding the outer surface of a steering tie rod. By setting up a first conveying mechanism and a second conveying mechanism synchronously driven by a linkage roller, a smooth transition of the workpiece during the conveying process is ensured. The limiting mechanism located between the two integrates a lifting drive assembly, a rotating device, and a lifting clamping assembly. Combined with a centering cylinder, it can automatically complete a series of actions such as lateral centering, lifting and positioning, rotational reversal, and clamping and transfer of the workpiece. This invention discloses a limiting conveying device for grinding the outer surface of a steering tie rod. A position sensor detects the workpiece's arrival at the designated position, and an electronic control system coordinates the sequential operation of each actuator. This automatically adjusts the workpiece from a longitudinal conveying posture of the first conveying mechanism to a lateral conveying posture suitable for the second conveying mechanism and subsequent grinding processes. The entire process requires no manual intervention, greatly facilitating material handling and processing by subsequent automated grinding equipment. Furthermore, the inclusion of rubber rollers protects the workpiece surface, significantly improving production efficiency and automation levels.

[0018] In summary, by integrating a synchronous conveying system with a multi-functional limiting mechanism, this invention effectively solves the problem that existing material conveying devices cannot adjust the position and reverse the direction of the steering tie rod. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention without the cover plate structure installed; Figure 3 This is a three-dimensional schematic diagram of the cover plate structure of the present invention; Figure 4 This is a three-dimensional structural diagram of the limiting mechanism of the present invention; Figure 5 This is the present invention. Figure 4Enlarged schematic diagram of section A in the middle; Figure 6 This is the present invention. Figure 4 The right view; Figure 7 This is the present invention. Figure 4 Rear view; Figure 8 This is a three-dimensional structural diagram of the lifting and clamping assembly of the present invention; Figure 9 This is a schematic diagram showing the positional relationship and structure of the centering cylinder, outer connecting plate, centering connecting plate and centering push plate of the present invention.

[0021] In the diagram: 1. Side plate; 2. Linkage roller; 3. First drive roller; 4. First auxiliary support roller; 5. First conveyor belt; 6. Transmission part; 7. Connecting part; 8. Second transmission roller; 9. Second conveyor belt; 10. Sleeving part; 11. Vertical plate; 12. Rotating device; 13. Rotating plate; 14. Limiting connecting plate; 15. Limiting plate; 16. Top plate; 17. End plate; 18. Lifting drive device; 19. Lifting block; 20. Connecting column; 21. Lifting linkage block; 22. Anchor. 23. Mounting base; 24. Groove; 25. Lifting cylinder; 26. Connecting ear; 27. Lifting bar; 28. Mounting slot; 29. ​​Rubber roller; 20. First fixing plate; 30. L-shaped plate; 31. Position sensor; 32. L-shaped support plate; 33. Outer connecting plate; 34. Centering cylinder; 35. Centering connecting plate; 36. Centering push plate; 37. Support foot; 38. Bearing seat; 39. Gear motor; 40. Fixing cover plate; 41. Middle cover plate; 42. Connecting cover plate; 43. Side cover plates. Detailed Implementation

[0022] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of the present invention is not limited to the following embodiments, and any modifications and / or alterations made to the present invention will fall within the protection scope of the present invention.

[0023] In this invention, unless otherwise specified, all parts and percentages are by weight, and the equipment and raw materials used are commercially available or commonly used in the art. Unless otherwise specified, the methods in the following embodiments are conventional methods in the art. Unless otherwise specified, the components or equipment in the following embodiments are general standard parts or components known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0024] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In this detailed description, numerous specific details are set forth to facilitate explanation and provide a thorough understanding of the embodiments of the present invention. However, one or more embodiments may be practiced by those skilled in the art without these specific details.

[0025] like Figures 1-9 As shown, the present invention discloses a limiting and feeding device for grinding the outer surface of a steering tie rod. The main support structure of the device is a set of parallel side plates 1. In the space between the two sets of side plates 1, a first conveying mechanism, a limiting mechanism, a linkage roller 2, and a second conveying mechanism are arranged sequentially from left to right.

[0026] The first conveying mechanism is responsible for conveying the unadjusted steering tie rod. It includes a first drive roller 3, multiple equidistant first auxiliary support rollers 4, and a set of first conveyor belts 5. The first drive roller 3 is located on the left side, and its roller shaft is connected to a reduction motor 39 mounted on the side plate 1 via a coupling. The first drive roller 3 and all the first auxiliary support rollers 4 have the same structure, and their rotating roller portions are all fixed by transmission portions 6 located on both sides and a connecting portion 7 located in the center. Two first conveyor belts 5 are respectively sleeved on the transmission portions 6 on both sides of the rotating roller portions of the first drive roller 3 and all the first auxiliary support rollers 4, thereby forming two parallel conveying lines between the two sets of side plates 1. The space between the two conveyor belts is used to accommodate the subsequent limiting mechanism.

[0027] The second conveying mechanism is responsible for conveying the steering tie rods that have completed the reversal. It includes multiple equally spaced second drive rollers 8 and a second conveyor belt 9. The rotating part of the second drive roller 8 has a recessed sleeve portion 10 in the center, and the second conveyor belt 9 is sleeved on the sleeve portions 10 of all the second drive rollers 8, thereby forming a central conveying line in the right half of the device.

[0028] The linkage roller 2 is a key synchronizing component connecting the first and second conveying mechanisms. The right ends of the two first conveyor belts 5 are respectively fitted onto the two sides of the rotating roller of the linkage roller 2, while the left end of the second conveyor belt 9 is fitted onto the central part of the rotating roller of the linkage roller 2. When the reduction motor 39 drives the first drive roller 3 to rotate, the power is transmitted to the linkage roller 2 through the first conveyor belts 5, and then the central part of the linkage roller 2 drives the second conveyor belt 9 to operate synchronously, ensuring the linkage of the two conveying sections.

[0029] The limiting mechanism is the core component for workpiece positioning and reversing. It is vertically installed in the center of a set of side plates 1, located between the first auxiliary support roller 4 and the linkage roller 2 on the far right of the first conveying mechanism. The foundation of the limiting mechanism is the vertical plate 11, which is firmly connected to the L-shaped support plate 32 on the side plate 1 via an L-shaped fixed connecting plate. A lifting drive assembly is installed on the side of the vertical plate 11 away from the first conveyor belt 5. The lifting drive assembly includes a set of end plates 17 fixed to the vertical plate 11 at the top and bottom. A lifting drive device 18 is installed on the lower end plate 17. The lifting drive device 18 uses a drive motor, and the output shaft of the drive motor is connected to a vertical threaded rod via a coupling. A lifting block 19 is fitted on the threaded rod, and the lifting block 19 is prevented from rotating by a limiting rod. A set of connecting columns 20 is fixed on the side of the lifting block 19 closest to the vertical plate 11, and the connecting columns 20 pass through the vertical plate 11.

[0030] On the side of the vertical plate 11 near the first conveyor belt 5, a lifting linkage assembly is installed at the end of the connecting column 20. The lifting linkage assembly mainly includes a lifting linkage block 21 fixed on the connecting column 20, and a mounting base 22 installed on the top of the lifting linkage block 21. A rotating device 12 is installed on the top of the mounting base 22, preferably a rotary cylinder. The output end of the rotating device 12 faces upward, and a rotating plate 13 is fixedly installed on its top. A forward-through groove 23 is opened on the side of the top of the rotating plate 13 near the first conveyor belt 5. A vertical limiting plate 15 is connected to the side of the top of the rotating plate 13 away from the first conveyor belt 5 through a limiting connecting plate 14, and a top plate 16 is provided on the top of the limiting plate 15. The end faces of the rotating plate 13, the limiting connecting plate 14, the limiting plate 15, and the top plate 16 on the side away from the first conveyor belt 5 are coplanar.

[0031] The lifting and clamping assembly is mounted on the top plate 16. It includes a set of lifting cylinders 24, the cylinder bodies of which are fixed to the top of the top plate 16, with their output shafts extending downwards through the top plate 16 into a groove 23 in the rotating plate 13. A lifting bar 26 is fixed to the bottom end of the output shaft via a connecting lug 25. The top of the lifting bar 26 has a mounting groove 27, within which multiple rubber rollers 28 are rotatably mounted, with the tops of the rubber rollers 28 slightly higher than the top surface of the lifting bar 26. When the lifting cylinders 24 are fully extended, the tops of the rubber rollers 28 protrude from the groove 23. An auxiliary rubber roller 28 is also mounted at the top of the groove 23.

[0032] The position detection component is used to sense the workpiece's arrival. It includes a first fixed plate 29 fixed to the rear end of the rotating plate 13 and an L-shaped plate 30 fixed to the top of the top plate 16. The transmitter and receiver of the photoelectric position sensor 31 are respectively installed on the first fixed plate 29 and the L-shaped plate 30, and the beam path is located on the side of the limiting plate 14 near the workpiece.

[0033] On both sets of side plates 1, an outer connecting plate 33 is installed on the outer side of the L-shaped support plate 32 located to the left of the limiting plate 15. A centering cylinder 34 is installed on the outer connecting plate 33. The output shaft of the centering cylinder 34 points horizontally to the center of the device, and a centering connecting plate 35 and a centering push plate 36 are installed at its end. The end face of the centering push plate 36 is flush with the side of the limiting plate 15.

[0034] The cover structure is used for protection and includes a fixed cover plate 40, an intermediate cover plate 41, a connecting cover plate 42, and two side cover plates 43, which are connected in sequence to cover the gaps between the first conveyor belts 5, between the first conveyor belt 5 and the side plate 1, and between the second conveyor belt 9 and the side plate 1.

[0035] The electrical control system of this device coordinates all actions. The external electrical control cabinet houses a PLC controller, motor drivers, relay modules, and an air supply processing unit for the pneumatic components. The signal from position sensor 31 is input to the PLC's input module. The motors of the lifting drive motor, reduction motor 39, and rotating device 12 are controlled by the PLC through drivers for starting, stopping, and direction. The solenoid valves of the centering cylinder 34 and lifting cylinder 24 are controlled by the PLC's output module for on / off operation.

[0036] During operation, the geared motor 39 runs continuously, driving the first and second conveying mechanisms to operate at low speed. The steering tie rod is carried and conveyed by the first conveyor belt 5. When the workpiece enters the limit zone and blocks the beam of the position sensor 31, the PLC receives the positioning signal. The geared motor 39 rotates continuously for a short time, causing the steering tie rod to adjust its direction to be horizontal with the limit plate 15 under the limit of the limit plate 15 and the synchronous conveying of the first conveyor belt 5. Then the rotary motor stops rotating. Next, the PLC starts the lifting drive motor, which drives the lifting block 19 to rise through the threaded rod transmission, thereby driving the entire limit mechanism to rise until the top surface of the rotating plate 13 is slightly higher than the surface of the first conveyor belt 5. Subsequently, the solenoid valves of the centering cylinders 34 on both sides are energized, the cylinder rods extend, and push the centering push plate 36 to laterally correct the workpiece to the center line of the device. Then, the solenoid valve controlling the lifting cylinder 24 is energized, the cylinder rod extends, pushing the lifting bar 26 upward, lifting the workpiece from the first conveyor belt 5, and lightly clamping it between the rubber roller 28 and the rubber pad at the bottom of the top plate 16. After the workpiece is fixed, the PLC controls the rotating device 12 to rotate the rotating plate 13 and the upper components by 90°, and the clamped workpiece is thus reversed. After the reversal is completed, the lifting cylinder 24 returns to its original position, smoothly placing the workpiece onto the horizontal surface of the synchronously running second conveyor belt 9, with one end of the workpiece resting on the second conveyor belt 9, and being conveyed again by the second conveyor belt 9. Finally, the rotating device 12 rotates 90° in the opposite direction to reset, and the drive motor reverses to drive the rotating plate 13 to descend back to its original position, restoring the system to its initial state, waiting for the next workpiece. The entire process is carried out automatically in a cycle, realizing automatic conveying, precise positioning, right-angle reversal, and smooth transfer of the steering tie rod.

[0037] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A limiting and feeding device for grinding the outer surface of a steering tie rod, characterized in that: It includes a set of side plates (1), a first conveying mechanism is provided at the left end between the set of side plates (1), a second conveying mechanism is provided at the right end between the set of side plates (1), a linkage roller (2) is provided at the center between the set of side plates (1), and a limiting mechanism is provided at the center of the set of side plates (1) between the first conveying mechanism and the linkage roller (2); The first conveying mechanism includes a first drive roller (3), a plurality of first auxiliary support rollers (4), and a set of first conveyor belts (5). The first drive roller (3) is located on the left side between the side plates (1). The plurality of first auxiliary support rollers (4) are evenly distributed on the right side of the first drive roller (3) between the side plates (1). The rotating parts of the first drive roller (3) and the first auxiliary support rollers (4) are each composed of a set of transmission parts (6) and a connecting part (7). The set of transmission parts (6) is located on both sides of the connecting part (7), and the connecting part (7) is fixedly connected to the transmission part (6). A set of first conveyor belts (5) are respectively sleeved on the set of transmission parts (6) of the first drive roller (3) and the first auxiliary roller. The right end of the set of first conveyor belts (5) is sleeved on both sides of the rotating part of the linkage roller (2). The second conveying mechanism includes a plurality of second drive rollers (8) and a second conveyor belt (9). The plurality of second drive rollers (8) are equidistantly distributed between the side plates (1) at the right end of the linkage roller (2). The rotating part of the second drive roller (8) is provided with a sleeve part (10) in the center. The second conveyor belt (9) is sleeved on the sleeve part (10) of the second drive roller (8). The left end part of the second conveyor belt (9) is sleeved at the center of the rotating part of the linkage roller (2). The limiting mechanism includes a vertical plate (11), a lifting drive assembly, a lifting linkage assembly, a rotating device (12), a rotating plate (13), a limiting connecting plate (14), a limiting plate (15), and a lifting clamping assembly. The vertical plate (11) is located between the rightmost first auxiliary support roller (4) and the linkage roller (2) in the first conveying mechanism between the side plates (1). The vertical plate (11) is parallel to the first auxiliary support roller (4) in the first conveying mechanism. The lifting drive assembly is installed on the end face of the vertical plate (11) away from the first auxiliary support roller (4). The lifting linkage assembly is located on the side of the vertical plate (11) close to the first auxiliary support roller (4), and the lifting... The linkage component is connected to the lifting part of the lifting drive component. The rotating device (12) is installed on the top of the lifting linkage component. The rotating plate (13) is installed on the top of the output end of the rotating device (12). The limiting plate (14) is fixedly connected to the top of the rotating plate (13) on the side away from the first auxiliary support roller (4). The limiting plate (15) is connected to the top of the limiting plate (14). The top of the limiting plate (15) is provided with a top plate (16). The lifting clamping component is installed on the top plate (16). The end faces of the rotating plate (13), the limiting plate (14), the limiting plate (15) and the top plate (16) away from the first auxiliary support roller (4) are on the same plane.

2. The limiting and feeding device for grinding the outer surface of a steering tie rod according to claim 1, characterized in that: The lifting drive assembly includes a set of end plates (17). The set of end plates (17) is fixedly installed on the end face of the vertical plate (11) away from the first auxiliary support roller (4). The set of end plates (17) is fixedly connected to the upper and lower ends of the vertical plate (11). A lifting drive device (18) is installed on the lower end face of the lower end of the set of end plates (17). A lifting block (19) is installed on the output end of the lifting drive device (18). A set of connecting columns (20) is vertically provided on the end face of the lifting block (19) near the vertical plate (11). The set of connecting columns (20) extends through the vertical plate (11) to the end of the vertical plate (11) near the first auxiliary support roller (4). The lifting linkage assembly is installed on the end of the set of connecting columns (20) near the first auxiliary support roller (4).

3. A limiting and feeding device for grinding the outer surface of a steering tie rod according to claim 2, characterized in that: The lifting linkage assembly includes a lifting linkage block (21), which is mounted on a set of connecting columns (20). A mounting seat (22) is mounted on the top of the lifting linkage block (21), and the rotating device (12) is mounted on the top of the mounting seat (22).

4. A limiting and feeding device for grinding the outer surface of a steering tie rod according to claim 3, characterized in that: The top of the rotating plate (13) near the first auxiliary support roller (4) has a groove (23) that runs through the front side of the rotating plate (13).

5. A limiting and feeding device for grinding the outer surface of a steering tie rod according to claim 4, characterized in that: The lifting clamping assembly includes a set of lifting cylinders (24), which are installed on the top of the top plate (16). The output of the set of lifting cylinders (24) extends through the top plate (16) into the groove (23). A connecting ear (25) is installed at the bottom of the output shaft of the set of lifting cylinders (24). A lifting strip (26) is provided on the end face of the connecting ear (25) near the first auxiliary support roller (4). The lifting strip (26) is located in the groove (23). An installation groove (27) is opened on the top of the lifting strip (26). Several rubber rollers (28) are rotatably arranged in the installation groove (27). The top of the several rubber rollers (28) is higher than the top surface of the lifting strip (26). When the output shaft of the lifting cylinder (24) is fully extended, the top of the several rubber rollers (28) is higher than the top of the groove (23).

6. A limiting and feeding device for grinding the outer surface of a steering tie rod according to claim 5, characterized in that: A position detection assembly is installed on both the top plate (16) and the rotating plate (13). The position detection assembly includes a first fixed plate (29) and an L-shaped plate (30). The first fixed plate (29) is located on the rear end face of the rotating plate (13). The L-shaped plate (30) is fixedly connected to the top of the top plate (16) near the first fixed plate (29). A position sensor (31) is installed on the first fixed plate (29) and the L-shaped plate (30). The position sensor (31) is located on the limiting connecting plate (14) near the first auxiliary support roller (4).

7. A limiting and feeding device for grinding the outer surface of a steering tie rod according to claim 6, characterized in that: On the opposite surfaces of a set of side plates (1), there are several L-shaped support plates (32). The L-shaped support plates (32) on different side plates (1) correspond one to one. On the left side of the limiting plate (15), the L-shaped support plates (32) are provided with an outer connecting plate (33) on the end face away from the side plate (1). On the end face away from the side plate (1) of the outer connecting plate (33), a centering cylinder (34) is installed. The output shaft of the centering cylinder (34) extends through the outer connecting plate (33) to the position of the first conveyor belt (5). A centering connecting plate (35) is installed on the output shaft of the centering cylinder (34). A centering push plate (36) is installed on the end face of the centering connecting plate (35) near the end of the limiting plate (15). The end faces of the centering push plate (36) and the centering connecting plate (35) near the end of the limiting plate (15) are horizontal to the side of the limiting plate (15).

8. A limiting and feeding device for grinding the outer surface of a steering tie rod according to claim 7, characterized in that: The L-shaped support plate (32) is clamped and fixed with a set of nuts. The front and rear ends of the vertical plate (11) are provided with L-shaped fixing plates. The L-shaped fixing plates are fixed to the inner wall of the L-shaped support plate (32) by a set of bolts.

9. A limiting and feeding device for grinding the outer surface of a steering tie rod according to claim 1, characterized in that: The roller shafts of the first drive roller (3), the first auxiliary support roller (4), the linkage roller (2) and the second transmission roller (8) all pass through the side plate (1) and are rotated with the side plate (1) through the bearing installed inside the bearing seat (38). The roller shaft at one end of the first drive roller (3) passes through the bearing and extends to the outside of the bearing. The end of the first drive roller (3) extending to the outside of the bearing is connected to a geared motor (39) through a coupling. The geared motor (39) is installed on the side plate (1).

10. A limiting and feeding device for grinding the outer surface of a steering tie rod according to claim 1, characterized in that: A cover plate structure is also provided between a set of side plates (1). The cover plate structure includes a fixed cover plate (40), a middle cover plate (41), a connecting cover plate (42), and two side cover plates (43). The fixed cover plate (40) is fixedly connected to the end face of a set of side plates (1) away from the second conveying mechanism. The middle cover plate (41) is installed in the center of the end face of the fixed cover plate (40) near the first conveying mechanism. The middle cover plate (41) is placed between a set of first conveyor belts (5). The connecting cover plates (42) are installed on both sides of the end face of the fixed cover plate (40) near the first conveying mechanism. The connecting cover plates (42) are located between the first conveyor belt (5) and the inner wall of the side plate (1). The two side cover plates (43) are installed on the end face of the connecting cover plate (42) away from the fixed cover plate (40). The two side cover plates (43) are located between the second conveyor belt (9) and the side plate (1).

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