Hydraulic oil cylinder machining feeding mechanism

Abstract

The invention relates to the technical field of hydraulic oil cylinder machining, and discloses a hydraulic oil cylinder machining feeding mechanism which comprises a guide rail truss installed between a plate chain conveying device and a machine tool, a mechanical arm is arranged on the guide rail truss, and a grabbing assembly is arranged at the bottom end of the mechanical arm. A cylinder barrel a of a hydraulic oil cylinder on the plate chain conveying device is grabbed through the mechanical arm and the grabbing assembly, the cylinder barrel a which is obliquely placed is centered and corrected through a first baffle, a second baffle and a shifting block of a conical structure, the first baffle and the second baffle are close to each other, and then the edge of an annular protruding body of the cylinder barrel a is pulled through a fastening mechanism; according to the feeding mechanism, the centering and correcting cylinder barrel a is flatly placed on the plate chain conveying device, then the clamping mechanism is used for positioning, clamping and hoisting the cylinder barrel a, the cylinder barrel a of the front jacking type hydraulic oil cylinder can be conveniently moved to a machine tool for clamping operation, it is ensured that the feeding mechanism can conduct position correcting, grabbing and feeding on the cylinder barrels a of the hydraulic oil cylinders which are obliquely placed, not correctly placed and not flatly placed, and the working efficiency is improved. And the phenomenon of empty grabbing in the grabbing process is prevented.

Description

Technical Field

[0001] This invention relates to the field of hydraulic cylinder processing technology, specifically to a hydraulic cylinder processing loading mechanism. Background Technology

[0002] The front-mounted hydraulic cylinder for dump trucks is a key lifting component in engineering vehicles. It is connected to the chassis and cargo box via two sets of hinges, allowing the cargo box to be lifted and unloaded by extending and retracting the hydraulic cylinder. The machining of hydraulic cylinders generally includes the processing of components such as the cylinder barrel and piston rod. The cylinder barrel and piston rod typically undergo length cutting, external turning, internal boring and milling, oil port opening, and surface polishing on machine tools. All of these processes require a corresponding loading mechanism to deliver the workpiece to the designated processing area.

[0003] The cylinder of a front-mounted hydraulic cylinder generally consists of a cylinder body, an annular protrusion, and hinge pins located on both sides of the annular protrusion. The diameter of the annular protrusion is larger than the diameter of the cylinder body, which means that the front-mounted hydraulic cylinder requires a set of machine tools for roughing and finishing in stages during manufacturing.

[0004] Because the cylinders of the front-mounted hydraulic cylinders used in engineering vehicles are relatively heavy, and when the cylinders are being precision machined, they are usually moved from the rough machining area to the finishing area by a conveyor. The surface of the cylinders conveyed by the conventional conveyor is flush, and when the cylinders are placed manually on the conveyor, there will be skew and uneven placement. This makes it easy for the conventional feeding mechanism to misposition and miss when grabbing the cylinders. Summary of the Invention

[0005] The purpose of this invention is to provide a hydraulic cylinder machining and feeding mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hydraulic cylinder processing and feeding mechanism, comprising a guide rail truss installed between a plate chain conveyor and a machine tool, wherein a manipulator is mounted on the guide rail truss to transport the cylinder barrel a of the hydraulic cylinder from the plate chain conveyor to the machine tool, and a gripping assembly for gripping and feeding the cylinder barrel a is provided at the bottom end of the manipulator; the gripping assembly includes a pod located at the bottom end of the manipulator, a crossbeam extending to both sides fixed in the middle of the pod, guide plates slidably connected to the lower ends of the crossbeams, and guide boxes installed at the bottom of the guide plates. Below the box, there are two symmetrically arranged baffles facing downwards. The bottom end of the baffle is horizontally fixed with a conical block to center and correct the cylinder a that is not placed correctly. The baffle is equipped with a fastening mechanism to flatten and correct the cylinder a placed on the plate chain conveyor. The two baffles are slidably connected to the side of each other with a limit sleeve. The inside of the limit sleeve is connected to an extension arm that is hinged and rotates with the limit sleeve through a tension spring. The two sides of the end of the extension arm have fan-shaped buckles that can be rotated. The cylinder a can be pulled flat by the buckles at the front end of the extension arm.

[0007] Preferably, the plate chain conveyor uses parallel partition plates to arrange the conveyed cylinders a at intervals. The cylinder a consists of a cylinder body, an annular protrusion, and hinge shafts located on both sides of the annular protrusion.

[0008] Preferably, a steering motor is installed on the top wall of the pod; a push-pull arm is provided inside the pod, and a motor is also installed inside the pod to drive the push-pull arm to rotate. The push-pull arm consists of a rotating plate and connecting arms hinged to both ends of the rotating plate. The output end of the motor is connected to the middle of the rotating plate; the end of the connecting arm away from the rotating plate is hinged to the middle of the guide plate.

[0009] Preferably, a second motor is installed at one end of the guide box, and a bidirectional lead screw that is connected to the output end of the second motor is movably connected inside the guide box; the tops of the first baffle and the second baffle are respectively threadedly connected to the bidirectional lead screws in the two guide boxes.

[0010] Preferably, the fastening mechanism includes a mounting bracket mated to one surface of the baffle. One side of the mounting bracket is connected to two pulleys via bearings. The two pulleys are linked together by a drive belt. A drive gear is mated to one side of the pulley located on the lower side of the mounting bracket.

[0011] Preferably, a motor three is installed on the outside of the guide box located above the baffle one. The motor three is provided with drive rods extending to both sides, and the drive rods slide through the middle of the pulley on the upper side of the mounting bracket; the bottom surface of the limiting sleeve is provided with locking teeth that mesh with the drive gear.

[0012] Preferably, the extension arm has a sliding rod inside, the surface of the buckle plate has a strip groove, the front end of the sliding rod extends vertically to both sides with a front pin shaft that extends into the strip groove, a cylinder is movably connected to the outside of the limiting sleeve that is hinged to the extension arm, the output rod of the cylinder is hinged to the rear pin shaft at the tail end of the sliding rod, and the surface of the extension arm has a reserved groove for the sliding of the front and rear pin shafts of the sliding rod.

[0013] Preferably, the bottom wall of the pod is integrally provided with two parallel T-shaped slide rails, and a clamping mechanism for clamping and hoisting the cylinder a is provided below the pod. The clamping mechanism includes a slide block that slides horizontally along the T-shaped slide rails; the slide block is symmetrically connected with jaws on both sides, and the cylinder a is clamped by the closing jaws. A toothed disc is integrally provided on the jaws, and adjacent jaws mesh through the toothed disc.

[0014] Preferably, the two grippers located on one side of cylinder a are connected by a fixed shaft, a U-shaped frame is provided in the middle of the fixed shaft, a hydraulic rod is movably connected to one side of the slide, and the output end of the hydraulic rod is movably connected to the U-shaped frame. The fixed shaft is pushed and pulled back and forth by the extension and retraction of the hydraulic rod.

[0015] Preferably, a rack is provided on the outer side of the slide, and a servo motor is installed below the pod. The output end of the servo motor is connected to a toothed roller that meshes with the rack for transmission. The servo motor drives the toothed roller to rotate, thereby driving the slide to move horizontally along the bottom of the pod.

[0016] Beneficial effects: Compared with the prior art, the present invention uses a robotic arm and a gripping assembly that move along the guide rail truss to grip the cylinder a of the hydraulic cylinder on the plate chain conveyor. It uses the mutually close baffles one and two, as well as the conical structure of the lever block, to center and correct the misaligned cylinder a. Then, the clamping mechanism pulls the edge of the annular protrusion of the cylinder a, so that the centered and corrected cylinder a is placed flat on the plate chain conveyor. Finally, the clamping mechanism is used to position, clamp and lift the cylinder a, which facilitates the transfer of the cylinder a of the front-mounted hydraulic cylinder to the machine tool for clamping. This ensures that the feeding mechanism can correct and grip the misaligned and uneven hydraulic cylinder a and prevent the gripping process from missing. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the linkage between the material gripping component, the fastening mechanism, and the clamping mechanism in this invention; Figure 3 This is a side view of the linkage between the material gripping component, the fastening mechanism, and the clamping mechanism in this invention. Figure 4This is a three-dimensional exploded view of the linkage between the material gripping component, the fastening mechanism, and the clamping mechanism in this invention. Figure 5 This is a three-dimensional structural diagram of the clamping mechanism in this invention; Figure 6 This is a three-dimensional structural diagram of the fastening mechanism in this invention; Figure 7 This is a three-dimensional structural diagram of the connection between the extension arm and the buckle in this invention; Figure 8 This is a three-dimensional cross-sectional view of the connection between the extension arm and the buckle in this invention; Figure 9 This is a three-dimensional exploded view of the connection between the extension arm and the buckle in this invention; Figure 10 This is a three-dimensional structural diagram of the clamping cylinder in this invention; Figure 11 This is a schematic diagram showing that both ends of cylinder a in this invention are close to the inner side of one of the partition plates; Figure 12 This is a schematic diagram showing that the two ends of cylinder a in this invention are close to the inner sides of the two partition plates; Figure 13 This is a diagram of an existing front-mounted hydraulic cylinder.

[0018] In the diagram: 1. Guide rail truss; 2. Robotic arm; 3. Material gripping assembly; 301. Hopper; 3011. Steering motor; 3012. Crossbeam; 302. Push-pull arm; 3021. Motor 1; 3022. Guide plate; 303. Guide box; 3031. Motor 2; 3032. Bidirectional lead screw; 304. Baffle 1; 305. Baffle 2; 3051. Pulley; 4. Plate chain conveyor; 5. Machine tool; 6. Fastening mechanism 601. Mounting bracket; 602. Pulley; 603. Drive belt; 604. Drive gear; 605. Motor 3; 606. Drive rod; 607. Limit sleeve; 608. Tension spring; 609. Extension arm; 610. Buckle plate; 611. Slide rod; 612. Cylinder; 7. Clamping mechanism; 701. Slide base; 702. Gripper; 703. Gear plate; 704. Hydraulic rod; 705. Rack; 706. Servo motor. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1 , Figure 2 , Figure 11 and Figure 12 The present invention provides a hydraulic cylinder processing and feeding mechanism, including a guide rail truss 1 installed between a plate chain conveyor 4 and a machine tool 5. A manipulator 2 is provided on the guide rail truss 1 to transport the cylinder barrel a of the hydraulic cylinder from the plate chain conveyor 4 to the machine tool 5. A gripping component 3 for gripping and feeding the cylinder barrel a is provided at the bottom end of the manipulator 2. The plate chain conveyor 4 uses parallel partition plates to space the conveyed cylinder barrel a at intervals to prevent the cylinder barrel a from excessively rolling and deviating during conveying.

[0021] The robotic arm 2 includes a horizontal motion component and a longitudinal movement component. The horizontal motion component includes a horizontal geared rail mounted on a guide truss 1, a horizontal moving seat sliding along the guide truss 1, and a horizontal drive motor mounted on the horizontal moving seat. A horizontal gear is mounted on the output end of the horizontal drive motor. The horizontal drive motor drives the horizontal gear at its output end to mesh with the horizontal geared rail on the guide truss 1, thereby causing the horizontal moving seat to move laterally along the guide truss 1. The longitudinal movement component includes a longitudinal drive motor mounted on the horizontal moving seat, a column that slides longitudinally along the horizontal moving seat, and a longitudinal geared rail mounted on the side of the column. A longitudinal gear is mounted on the output end of the longitudinal drive motor. The longitudinal drive motor drives the longitudinal gear at its output end to mesh with the longitudinal geared rail on the side of the column, thereby causing the column to move up and down along the horizontal moving seat. This facilitates the robotic arm 2, which moves along the guide truss 1, driving the material gripping component 3 to reciprocate between the chain conveyor 4 and the machine tool 5. The movement of the robotic arm 2 along the guide truss 1 is prior art; see Chinese Patent No. CN203031607U for reference.

[0022] Please see Figures 1-5 The material handling assembly 3 includes a pod 301 located at the bottom of the robot arm 2. A steering motor 3011 is installed on the top wall of the pod 301. A crossbeam 3012 extending to both sides is fixed in the middle of the pod 301. A push-pull arm 302 is provided inside the pod 301. A motor 3021 for driving the push-pull arm 302 to rotate is also installed inside the pod 301. The push-pull arm 302 is composed of a rotating plate and connecting arms hinged to both ends of the rotating plate. The output end of the motor 3021 is connected to the middle of the rotating plate. Guide plates 3022 are slidably connected to the lower ends of the crossbeam 3012. The ends of the connecting arms away from the rotating plate are hinged to the middle of the guide plates 3022.

[0023] In this embodiment, by activating the steering motor 3011 at the bottom of the robotic arm 2, the pod 301 can be driven to rotate horizontally in both directions, thereby enabling the gripping assembly 3 to adjust its angle when gripping the cylinder a; by activating the motor 3021 inside the pod 301, the rotating plate of the push-pull arm 302 can be driven to rotate, thereby enabling the rotating plate to drive the connecting arms at both ends to rotate, and the rotating connecting arms can drive the guide plate 3022 to slide back and forth along the crossbeam 3012.

[0024] Please see Figures 2-6 A guide box 303 is installed at the bottom of the guide plate 3022. A motor 3031 is installed at one end of the guide box 303. A bidirectional lead screw 3032 that is connected to the output end of the motor 3031 is movably connected inside the guide box 303. A baffle 304 and a baffle 305 are symmetrically arranged downwards below the two guide boxes 303. The tops of the baffles 304 and 305 are threaded to the bidirectional lead screws 3032 inside the two guide boxes 303. A tapered lever 3051 is horizontally fixed at the bottom of the baffle 305.

[0025] In this embodiment, after the hydraulic cylinder barrel a is rough-machined, it is transported to the plate chain conveyor 4 for placement. Because the rough machining of cylinder barrel a creates an annular protrusion with a diameter larger than the cylinder body and hinge pins on both sides of the annular protrusion, cylinder barrel a will be placed at an angle when placed on the plate chain conveyor 4. Furthermore, since the manually transported cylinder barrel a is placed directly on the plate chain conveyor 4 without precise positioning, both ends of cylinder barrel a may be close to the inner side of one of the partition plates, or both ends may be close to the inner sides of both partition plates, resulting in misalignment (see reference). Figure 3 , Figure 11 and Figure 12To this end, the material gripping assembly 3 is aligned with the designated position of the plate chain conveyor 4, and the two baffles 304 and 305 are moved between the two partition plates of the plate chain conveyor 4. The edges of the two baffles 305 that are far apart from each other are controlled to be close to the inner side of the two partition plates. Then, the motor 3021 in the pod 301 is started to drive the push-pull arm 302 to rotate. The push-pull arm 302 will pull the two guide boxes 303 to move closer together, and drive the baffles 304 and 305 to move closer together to vertically center the cylinder a, so that the cylinder a is centered in the axial direction. At the same time, the two baffles 304 abut against the annular protrusion end face of the cylinder a, and the two baffles 305 are used to... Plate 2 305 abuts against the other end face of cylinder a, and at the same time, the conical paddle 3051 on plate 2 305 corrects the skewed end of cylinder a. Then, one of the motors 2 3031 is started to drive the bidirectional lead screw 3032 to rotate, so that the two plates 2 305 move closer to each other. At this time, the paddle 3051 that are close to each other is used to correct the lateral centering of cylinder a. After the lateral centering correction, cylinder a will be located in the center of the two parallel partition plates, so that the feeding mechanism can correct the skewed cylinder a before grabbing it, so that the feeding mechanism has the function of positioning and grabbing, and prevents the grabbing component 3 from grabbing the cylinder a without grabbing it.

[0026] Please see Figures 2-9 A fastening mechanism 6 is provided on the baffle 304 to level and straighten the cylinder a placed on the plate chain conveyor 4. The fastening mechanism 6 includes a mounting bracket 601 that is mated to the surface of the baffle 304. Two pulleys 602 are connected to one side of the mounting bracket 601 by bearings. The two pulleys 602 are linked by a transmission belt 603. A drive gear 604 is mated to one side of the pulley 602 located below the mounting bracket 601. A motor 605 is installed on the outside of the guide box 303 located above the baffle 304. A drive rod 606 extending to both sides is provided on the motor 605. The drive rod 606 slides through the middle of the pulley 602 on the upper side of the mounting bracket 601. A limit sleeve 607 is slidably connected to the side of the two baffles 304 that are close to each other. The bottom surface of the limit sleeve 607 is provided with a locking tooth that meshes with the drive gear 604.

[0027] In this embodiment, when the first baffle 304 and the second baffle 305 are centering the cylinder a, the third starter motor 605 can drive the drive rod 606 to rotate the pulleys 602 on the upper side of the two mounting brackets 601 in the same direction. At this time, the transmission belt 603 can drive the two adjacent pulleys 602 to drive synchronously. As a result, the pulley 602 located on the lower side of the mounting bracket 601 will drive the drive gear 604 to rotate. The rotating drive gear 604 will mesh with the locking teeth on the bottom surface of the limiting sleeve 607, thereby driving the limiting sleeve 607 to slide along the first baffle 304. The forward and reverse rotation of the drive rod 606 driven by the third starter motor 605 can drive the limiting sleeve 607 on the first baffle 304 to slide in both directions.

[0028] It should be noted that since the drive rod 606 is prismatic, when the drive rod 606 rotates, it can drive the pulley 602 on the upper side of the mounting bracket 601 to rotate. When the two baffles 304 move closer or further apart, the pulley 602 on the upper side of the mounting bracket 601 will slide and adjust with the drive rod 606.

[0029] Please see Figures 6-9 The inside of the limiting sleeve 607 is connected by a tension spring 608 to an extension arm 609 that is hinged and rotates with the limiting sleeve 607. Fan-shaped buckles 610 are rotated on both sides of the end of the extension arm 609. The cylinder a can be pulled flat by the buckles 610 at the front end of the extension arm 609.

[0030] In this embodiment, since the cylinder body and the annular protrusion of cylinder a will be tilted when placed on the plate chain conveyor 4, the motor 3605 drives the drive rod 606 to rotate forward, causing the limiting sleeve 607 and the extension arm 609 on the baffle 304 to move forward to the upper side of the annular protrusion of cylinder a. During this process, the buckle 610, which is in contact with the upper side of the annular protrusion, will cause the extension arm 609 to deflect upward within the limiting sleeve 607. At this time, the upwardly deflected extension arm 609 will pull the tension spring 608 to lengthen. When the fan-shaped buckle 610 disengages from the upper side of the annular protrusion and abuts against the edge of the annular protrusion, the resetting and shortening tension spring 608 will immediately pull the extension arm 609 to deflect downward. At this time, the fan-shaped buckle 610 will move forward to the upper side of the annular protrusion. The straight edge of the buckle 610 abuts against the edge of the annular protrusion. Then, the motor 605 drives the drive rod 606 to reverse, causing the limit sleeve 607 to move in the reverse direction along the baffle 304. This drives the extension arm 609 and the fan-shaped buckle 610 to move in the opposite direction. At this time, the buckle 610 will pull the annular protrusion while buckling it. With the buckle 610 buckling and pulling the annular protrusion on one side and the baffle 304 abutting the annular protrusion on the other side, the annular protrusion of cylinder a is placed flat on the plate chain conveyor 4, and the cylinder body of cylinder a is lifted to complete the disengagement from the plate chain conveyor 4. At this time, the centered and corrected cylinder a can be laid flat, which is convenient for the subsequent clamping mechanism 7 to position and clamp the flat cylinder body of cylinder a.

[0031] Please see Figures 2-5 The bottom wall of the pod 301 is integrally provided with two parallel T-shaped slide rails. A clamping mechanism 7 for clamping and hoisting cylinder a is provided below the pod 301. The clamping mechanism 7 includes a slide block 701 that slides horizontally along the T-shaped slide rails. Claws 702 are symmetrically connected to both sides of the slide block 701. The cylinder a is clamped by the closing claws 702. A toothed disc 703 is integrally provided on the claws 702. Two adjacent claws 702 are engaged by the toothed disc 703. Among them, the two claws 702 located on one side of cylinder a are connected by a fixed shaft. A U-shaped frame is provided in the middle of the fixed shaft. A hydraulic rod 704 is movably connected to one side of the slide block 701. The output end of the hydraulic rod 704 is movably connected to the U-shaped frame. The fixed shaft is pushed and pulled back and forth by the extension and retraction of the hydraulic rod 704.

[0032] In this embodiment, when the fastening mechanism 6's fastening disc 610 fastens the annular protrusion with cylinder a, the hydraulic rod 704 on one side of the slide 701 is activated to pull the U-shaped frame, causing the U-shaped frame to rotate the fixed shaft. The rotating fixed shaft will drive the two grippers 702 located on one side of cylinder a to rotate. At this time, the two adjacent grippers 702 can close the symmetrically distributed grippers 702 on both sides of the slide 701 through the meshing of the gear plate 703. The closed grippers 702 will then position and clamp the cylinder a. After the cylinder a is clamped by the two sets of grippers 702, the movement of the manipulator 2 can drive the cylinder a to be lifted and moved. When the cylinder a is sent to the three-jaw chuck of the machine tool 5, the steering motor 3011 drives the pod 301 to rotate 90°, which can easily align one end of the cylinder a with the three-jaw chuck, thus facilitating the machine tool 5 to process different positions of the cylinder a.

[0033] Please see Figures 7-9 The extension arm 609 has a sliding rod 611 inside, and the surface of the buckle 610 has a strip groove. The front end of the sliding rod 611 extends vertically to both sides and has a front pin that extends into the strip groove. The limit sleeve 607, which is hinged to the extension arm 609, is movably connected to the outside of the cylinder 612. The output rod of the cylinder 612 is hinged to the rear pin at the tail end of the sliding rod 611. The surface of the extension arm 609 has a reserved groove for the sliding of the front pin and the rear pin of the sliding rod 611.

[0034] In this embodiment, to ensure that cylinder a is not obstructed during clamping operations in machine tool 5, cylinder 612 is driven to pull the rear pin at the tail end of slide rod 611, causing slide rod 611 to slide within extension arm 609. The front pin at the front end of slide rod 611 presses against the strip groove on the surface of clamping plate 610, causing the fan-shaped clamping plate 610 to rotate. At this time, the straight edge of clamping plate 610 in contact with the annular protrusion will rotate and disengage. Then, by activating two sets of motors 3031, the bidirectional lead screw 3032 is driven to rotate, so that the bidirectional lead screw 3032 can drive the two sets of baffles 304 to move away from each other and the two sets of baffles 305 to move away from each other. At this time, the baffles 304 and 305 at both ends of cylinder a move laterally away, so that cylinder a is not obstructed when moving towards the three-jaw chuck.

[0035] Please see Figures 3-5 A rack 705 is provided on the outer side of the slide 701, and a servo motor 706 is installed below the pod 301. The output end of the servo motor 706 is connected to a toothed roller that meshes with the rack 705 for transmission. The servo motor 706 drives the toothed roller to rotate, thereby driving the slide 701 to move horizontally along the bottom of the pod 301.

[0036] In this embodiment, when the first baffle 304 and the second baffle 305 move laterally away from the front and rear ends of the cylinder a, the servo motor 706 is started to drive the output end toothed roller and the rack 705 to mesh and transmit power, so that the slide block 701 moves laterally along the T-shaped slide rail on the bottom wall of the pod 301. This allows the slide block 701 to drive the two sets of grippers 702 to move the gripped cylinder a smoothly along the direction of the T-shaped slide rail. At this time, it is convenient to send one end of the cylinder a into the three-jaw chuck for clamping, thereby assisting the operator in performing fine machining clamping operations on the rough-machined cylinder a. After the three-jaw chuck has clamped the cylinder a of the hydraulic cylinder, by opening the grippers 702 and having the robot arm 2 drive the material gripping assembly 3 away from the machine tool 5, it is convenient to perform fine machining on the machine tool 5.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hydraulic cylinder processing and feeding mechanism, comprising a guide rail truss (1) installed between a plate chain conveyor (4) and a machine tool (5), characterized in that: A robotic arm (2) is provided on the guide rail truss (1) to transport the cylinder a of the hydraulic cylinder from the plate chain conveyor (4) to the machine tool (5). The bottom end of the robotic arm (2) is provided with a material gripping component (3) for gripping and feeding the cylinder a. The material gripping assembly (3) includes a pod (301) located at the bottom of the robot (2). A crossbeam (3012) extending to both sides is fixed in the middle of the pod (301). Guide plates (3022) are slidably connected to the bottom of both ends of the crossbeam (3012). Guide boxes (303) are installed at the bottom of the guide plates (3022). A first baffle (304) and a second baffle (305) symmetrically distributed downwards are respectively provided below the two guide boxes (303). A conical block (3051) is horizontally fixed at the bottom of the second baffle (305) to center and correct the misaligned cylinder a. The baffle (304) is provided with a fastening mechanism (6) for leveling and correcting the cylinder a placed on the plate chain conveyor (4). The two baffles (304) are slidably connected to a limiting sleeve (607) on the side close to each other. The inside of the limiting sleeve (607) is connected to an extension arm (609) that is hinged and rotated with the limiting sleeve (607) by a tension spring (608). The two sides of the end of the extension arm (609) are rotated with fan-shaped buckles (610). The cylinder a can be pulled flat by the buckles (610) at the front end of the extension arm (609).

2. The hydraulic cylinder machining and feeding mechanism according to claim 1, characterized in that: The plate chain conveyor (4) uses parallel partition plates to arrange the conveyed cylinders a at intervals. The cylinders a consist of a cylinder body, an annular protrusion, and hinges located on both sides of the annular protrusion.

3. The hydraulic cylinder machining and feeding mechanism according to claim 1, characterized in that: A steering motor (3011) is installed on the top wall of the pod (301); a push-pull arm (302) is provided inside the pod (301), and a motor (3021) for driving the push-pull arm (302) to rotate is also installed inside the pod (301). The push-pull arm (302) is composed of a rotating plate and connecting arms hinged to both ends of the rotating plate. The output end of the motor (3021) is connected to the middle of the rotating plate. The end of the connecting arm away from the rotating plate is hinged to the middle of the guide plate (3022).

4. The hydraulic cylinder machining and feeding mechanism according to claim 3, characterized in that: One end of the guide box (303) is equipped with a motor two (3031), and a bidirectional lead screw (3032) that is connected to the output end of the motor two (3031) is movably connected inside the guide box (303); the tops of the baffle one (304) and the baffle two (305) are respectively threadedly connected to the bidirectional lead screws (3032) inside the two guide boxes (303).

5. The hydraulic cylinder machining and feeding mechanism according to claim 1, characterized in that: The fastening mechanism (6) includes a mounting bracket (601) mated to the surface of the baffle (304). Two pulleys (602) are connected to one side of the mounting bracket (601) by bearings. The two pulleys (602) are linked by a drive belt (603) wrapped around them. A drive gear (604) is mated to one side of the pulley (602) located under the mounting bracket (601).

6. The hydraulic cylinder machining and feeding mechanism according to claim 5, characterized in that: A motor three (605) is installed on the outside of the guide box (303) located above the baffle (304). The motor three (605) is provided with a drive rod (606) extending to both sides. The drive rod (606) slides through the middle of the pulley (602) on the upper side of the mounting bracket (601). The bottom surface of the limiting sleeve (607) is provided with a locking tooth that meshes with the drive gear (604).

7. The hydraulic cylinder machining and feeding mechanism according to claim 1, characterized in that: The extension arm (609) has a sliding rod (611) inside, and the surface of the buckle (610) is provided with a strip groove. The front end of the sliding rod (611) extends vertically to both sides and has a front pin that extends into the strip groove. A cylinder (612) is movably connected to the outside of the limiting sleeve (607) which is hinged to the extension arm (609). The output rod of the cylinder (612) is hinged to the rear pin at the tail end of the sliding rod (611). The surface of the extension arm (609) is provided with a reserved groove for the sliding of the front pin and the rear pin of the sliding rod (611).

8. The hydraulic cylinder machining and feeding mechanism according to claim 1, characterized in that: The bottom wall of the pod (301) is integrally provided with two parallel T-shaped slide rails. A clamping mechanism (7) for clamping and hoisting the cylinder a is provided below the pod (301). The clamping mechanism (7) includes a slide seat (701) that slides horizontally along the T-shaped slide rails. The slide seat (701) is symmetrically connected with jaws (702) on both sides. The cylinder a is clamped by the closing jaws (702). A toothed disc (703) is integrally provided on the jaws (702). Two adjacent jaws (702) mesh with each other through the toothed disc (703).

9. A hydraulic cylinder machining and feeding mechanism according to claim 8, characterized in that: Two grippers (702) located on one side of cylinder a are connected by a fixed shaft. A U-shaped frame is provided in the middle of the fixed shaft. A hydraulic rod (704) is movably connected to one side of the slide (701). The output end of the hydraulic rod (704) is movably connected to the U-shaped frame. The fixed shaft is pushed and pulled back and forth by the extension and retraction of the hydraulic rod (704).

10. A hydraulic cylinder machining and feeding mechanism according to claim 9, characterized in that: A rack (705) is provided on the outer side of the slide (701), and a servo motor (706) is installed below the pod (301). The output end of the servo motor (706) is connected to a toothed roller that meshes with the rack (705). The servo motor (706) drives the toothed roller to rotate, thereby driving the slide (701) to move horizontally along the bottom of the pod (301).

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