Automatic feeding device for oil cylinder sealing groove turning

Abstract

The application discloses an automatic feeding device for oil cylinder sealing groove turning, and relates to the technical field of machining. The device comprises a base, a driving mechanism, a transmission mechanism and a workpiece conveying mechanism arranged on the base; the driving mechanism adopts a servo motor, and the intermittent feeding of a synchronous belt with a placing groove is driven through the transmission mechanism; the device further comprises a lifting mechanism and a clamping mechanism driven by a hydraulic pressure, and the clamping mechanism adopts a servo clamp with an arc-shaped clamping plate. The application realizes the automatic conveying, grabbing, accurate transferring and clamping of the workpiece through the coordinated sequential actions of the mechanisms by a control system, completely replaces the traditional manual feeding and discharging mode, effectively solves the problems of low production efficiency, high labor intensity and poor clamping consistency, and is suitable for the automatic turning of oil cylinder sealing grooves.

Description

Technical Field

[0001] This application relates to the field of mechanical manufacturing technology, specifically to an automatic feeding device for turning cylinder sealing grooves. Background Technology

[0002] Currently, the common method for machining sealing grooves in hydraulic cylinders is for operators to manually load and unload the workpiece. Specifically, the operator manually retrieves the workpiece from the material area and accurately clamps it onto the machine tool's three-jaw chuck or other fixtures. After machining, the operator manually releases the machine tool fixtures, removes the machined workpiece from the machine tool, and replaces it with a new workpiece. This manual loading, clamping, unloading, and machining method constitutes the main production method in existing technology.

[0003] However, this manual loading and unloading method has obvious drawbacks and limitations: First, the speed of manual loading and unloading is limited and difficult to perfectly match with the high-speed cutting time of the machine tool, resulting in frequent machine tool waiting times, artificially lengthening the entire processing cycle, and reducing production efficiency. Second, the repetitive handling and clamping are labor-intensive and easily cause worker fatigue. Long-term operation not only affects work efficiency but also easily leads to occupational health problems. Utility Model Content

[0004] This application realizes fully automated loading and unloading of the cylinder seal groove turning process, which significantly improves production efficiency, ensures machining consistency and greatly reduces labor intensity, and can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, this application provides the following technical solution: an automatic feeding device for turning cylinder sealing grooves, with a base on which a drive mechanism, a transmission mechanism and a workpiece conveying mechanism are provided.

[0006] The drive mechanism includes a servo motor fixedly mounted on the base.

[0007] The transmission mechanism includes a drive shaft and a driven shaft, which are rotatably connected to the left and right ends of the base, respectively. The output shaft of the servo motor is connected to the drive shaft via a coupling.

[0008] The workpiece conveying mechanism includes at least one synchronous belt, which is sleeved on the drive shaft and the driven shaft, and its outer side is provided with multiple placement slots for accommodating the workpieces to be processed.

[0009] The lifting mechanism includes a guide rod and a hydraulic telescopic rod mounted on a base. A lifting plate is slidably connected to the guide rod, and the telescopic end of the hydraulic telescopic rod is connected to the lifting plate.

[0010] The clamping mechanism includes a hydraulic telescopic rod II mounted on a lifting plate and a servo clamp, wherein the telescopic end of the hydraulic telescopic rod II is connected to the servo clamp.

[0011] The servo clamp includes a U-shaped base, a guide rod, two symmetrically arranged chucks, and a hydraulic telescopic rod that drives the chucks to move in opposite directions or away from each other. The lower end of each chuck is provided with an arc-shaped clamping plate.

[0012] Preferably, the base is an L-shaped bracket.

[0013] Preferably, the drive shaft and the driven shaft are respectively provided with a drive gear and a driven gear, and the synchronous belt is a toothed belt that meshes with the gear for transmission.

[0014] Preferably, the synchronous belt has two belts arranged symmetrically front and back.

[0015] Preferably, there are two guide rods, which are arranged in parallel on the base.

[0016] Preferably, the U-shaped base of the servo clamp is installed upside down, the second guide rod is arranged laterally inside the U-shaped base, and the chuck is slidably connected to the second guide rod.

[0017] Preferably, the inner arc surface of the arc-shaped clamp is adapted to the outer circular surface of the workpiece to be processed.

[0018] Preferably, the hydraulic telescopic rod one, hydraulic telescopic rod two, and hydraulic telescopic rod three are all controlled by a unified hydraulic system.

[0019] Preferably, the placement slots are evenly distributed along the length of the timing belt.

[0020] Preferably, it also includes a control system, which is connected to the servo motor and hydraulic system for signal coordination of feeding, lifting and clamping actions.

[0021] Compared with the prior art, the beneficial effects of this application are:

[0022] 1. This application achieves automatic, continuous, and precise conveying and clamping of workpieces through the coordinated operation of synchronous belt conveyor and servo clamp, completely replacing the traditional manual loading and unloading method, and significantly improving production efficiency and equipment utilization.

[0023] 2. The hydraulic and servo control system drives the fixture and lifting mechanism, ensuring stable operation and accurate positioning. This effectively guarantees the consistency of workpiece clamping and the repeatability of positioning, thereby improving the processing quality and product qualification rate of the sealing groove.

[0024] 3. The entire feeding process does not require direct human intervention, reducing the labor intensity and skill dependence of operators, while also reducing human-machine interaction, enhancing operational safety, and better meeting the development needs of modern intelligent manufacturing for automated and unmanned production. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this application;

[0026] Figure 2 This is the main view of this application.

[0027] In the diagram: 1 Lifting plate, 2 Hydraulic telescopic rod II, 3 Servo clamp, 31 Chuck, 32 U-shaped seat, 33 Guide rod II, 34 Hydraulic telescopic rod III, 35 Arc-shaped clamp, 4 Driven gear, 5 Workpiece to be processed, 6 Driven shaft, 7 Base, 8 Placement slot, 9 Synchronous belt, 10 Drive shaft, 11 Drive gear, 12 Guide rod I, 13 Hydraulic telescopic rod I, 14 Servo motor. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In the description of this application, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating directional or positional relationships, they are based on the appendix. Figure 2 The orientations or positional relationships shown are for the convenience of describing this application and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When a feature is referred to as "set", "fixed", or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.

[0030] Please see Figure 1-2 This application provides the following technical solution: an automatic feeding device for turning oil cylinder sealing grooves, with a base 7 serving as the mounting base and support frame of the entire device, on which a drive mechanism, a transmission mechanism and a workpiece conveying mechanism are provided. This integrated design ensures the device's structural compactness, operational stability and ease of maintenance.

[0031] The drive mechanism includes a servo motor 14 fixedly mounted on the base 7. As the core power source, it receives pulse signals from the control system to precisely control the speed, angle and direction of rotation, thereby giving the conveying mechanism precise start-stop and speed adjustment capabilities, and achieving precise synchronization with the machine tool processing cycle.

[0032] The transmission mechanism includes a drive shaft 10 and a driven shaft 6, which are rotatably connected to the left and right ends of the base 7, respectively. The output shaft of the servo motor 14 is connected to the drive shaft 10 through a coupling. This direct connection method ensures the coaxiality and efficiency of power transmission, and the structure is simple and reliable.

[0033] The workpiece conveying mechanism includes at least one synchronous belt 9, which is sleeved on the drive shaft 10 and the driven shaft 6. Its outer side is provided with multiple placement slots 8 for accommodating the workpieces 5 to be processed. The synchronous belt rotates cyclically under power drive. The customized placement slots effectively limit and convey the workpieces, prevent them from rolling and falling, and ensure that the loading position is accurate and consistent.

[0034] The lifting mechanism includes a guide rod 12 and a hydraulic telescopic rod 13 mounted on the base 7. A lifting plate 1 is slidably connected to the guide rod 12. The telescopic end of the hydraulic telescopic rod 13 is connected to the lifting plate 1. The hydraulic drive provides a smooth thrust. The guide rod forms a precision guide pair to ensure that there is no shaking during the lifting process, the positioning is accurate, and the picking and dropping actions are reliably completed.

[0035] The clamping mechanism includes a hydraulic telescopic rod 2 and a servo clamp 3 mounted on the lifting plate 1. The telescopic end of the hydraulic telescopic rod 2 is connected to the servo clamp 3 to realize precise feeding and retraction of the clamp in the horizontal direction, and accurately send the workpiece into the center of the machine tool chuck.

[0036] The servo clamp 3 includes a U-shaped base 32, a second guide rod 33, two symmetrically arranged chucks 31, and a third hydraulic telescopic rod 34 that drives the chucks 31 to move in opposite directions or away from each other. The lower end of the chuck 31 is provided with an arc-shaped clamping plate 35. The symmetrical clamping design ensures uniform clamping force, the guide rod ensures linearity of movement, and the arc-shaped clamping plate increases the contact area, which not only ensures reliability but also avoids damage to the workpiece.

[0037] Furthermore, the base 7 is an L-shaped bracket, which provides good cantilever support, leaves sufficient space for operation and avoids interference, ensuring overall rigidity and stability.

[0038] Furthermore, the drive shaft 10 and the driven shaft 6 are respectively provided with a drive gear 11 and a driven gear 4. The synchronous belt 9 is a toothed belt that meshes with the gear for transmission. This meshing method completely eliminates slippage, ensures strict synchronization, and realizes precise step-by-step conveying of the workpiece.

[0039] Furthermore, the synchronous belt 9 is provided with two belts, arranged symmetrically front and back, to provide balanced and stable support for workpieces with large length-to-diameter ratio, prevent tilting and jamming, and improve the reliability and applicability of conveying.

[0040] Furthermore, the guide rod 12 is provided in two parts, which are arranged in parallel on the base 7. The double guide rod layout forms a statically indeterminate structure, which enhances the anti-torsion and anti-eccentric load capacity and ensures that the lifting process always remains horizontal.

[0041] Furthermore, the U-shaped base 32 of the servo clamp 3 is installed upside down, the second guide rod 33 is arranged laterally inside the U-shaped base 32, and the chuck 31 is slidably connected to the second guide rod 33. This structure is compact and lowers the center of gravity, the built-in guide mechanism is protected, and the service life and reliability are improved.

[0042] Furthermore, the inner arc surface of the arc-shaped clamping plate 35 is adapted to the outer circular surface of the workpiece 5 to be processed, and the contoured arc surface achieves surface contact, so that the clamping force is evenly distributed, greatly reducing the contact stress and effectively avoiding damage to the workpiece surface.

[0043] Furthermore, the hydraulic telescopic rod 13, hydraulic telescopic rod 2, and hydraulic telescopic rod 34 are all controlled by a unified hydraulic system. Centralized control ensures efficient and coordinated operation of multiple actuators and stable power output. All actions are programmable and can be scheduled to ensure a smooth process and controllable rhythm.

[0044] Furthermore, the placement slots 8 are evenly distributed along the length of the synchronous belt 9 to achieve equidistant arrangement of workpieces, making the conveying cycle fixed and predictable, and facilitating precise matching with the processing cycle of various mechanisms and machine tools.

[0045] Furthermore, it also includes a control system, which is connected to the servo motor 14 and the hydraulic system for signal connection. The control system is used to coordinate feeding, lifting and clamping actions. As the "brain" of the device, it coordinates all action sequences through sensor feedback and precise instructions to achieve fully automated and intelligent operation, forming a highly efficient unmanned flexible manufacturing unit.

[0046] In use: Fix the base 7 of this automatic feeding device to the front of the CNC lathe, adjust the position of the device, and ensure that the motion trajectory axis of the servo fixture 3 is aligned with the axis of the lathe spindle. Connect the external hydraulic power source to the control system of the device to complete the connection and debugging of the entire machine's electrical and hydraulic systems.

[0047] The operator places multiple workpieces 5 to be processed into the placement slots 8 on the two synchronous belts 9 in sequence. The device is started, and the control system issues an instruction according to the preset program. The servo motor 14 starts and drives the drive shaft 10 to rotate through the coupling. Then, through the meshing transmission of the drive gear 11, driven gear 4 and toothed synchronous belts 9, the two synchronous belts 9 are driven to rotate synchronously and intermittently a distance of one workstation, thereby conveying the workpieces 5 to be processed sequentially and accurately to the designated loading waiting station.

[0048] Once the workpiece is conveyed to the pick-up position, the control system instructs the hydraulic system to operate:

[0049] The hydraulic telescopic rod 13 extends, pushing the lifting plate 1 to slide downwards along the two guide rods 12, causing the entire clamping mechanism to descend, so that the arc-shaped clamping plate 35 of the servo clamp 3 descends to just surround the workpiece.

[0050] Subsequently, the two hydraulic telescopic rods 34 move synchronously, driving the two clamps 31 to move towards each other along the guide rod 33, and firmly holding the workpiece through the arc-shaped clamping plate 35.

[0051] After the grip is secure, the hydraulic telescopic rod 13 retracts, and the lifting mechanism, along with the clamping mechanism that has gripped the workpiece, rises to a safe height.

[0052] The control system extends the hydraulic telescopic rod 2, pushing the servo clamp 3 forward horizontally to precisely transfer the workpiece to the center position of the chuck at the front end of the lathe spindle. The lathe's hydraulic chuck automatically opens, and then the servo clamp 3 feeds the workpiece into the jaws. The lathe chuck then closes to clamp the workpiece. After confirming clamping, the hydraulic telescopic rod 34 of the servo clamp 3 reverses its movement, releasing the arc-shaped clamping plate 35, completing the transfer of the workpiece.

[0053] The hydraulic telescopic rod 2 retracts, causing the servo clamp 3 to retract from the machine tool; simultaneously, the lifting mechanism can rise or remain at an appropriate height to avoid interference. After the workpiece is processed, the servo clamp 3, with the assistance of the hydraulic equipment, removes the workpiece from the chuck. The chuck is an electrically controlled chuck, which places the processed workpiece into the corresponding slot 8. This completes the automatic loading and unloading of workpieces.

[0054] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding device for turning hydraulic cylinder sealing grooves, characterized in that: The base (7) is provided with a drive mechanism, a transmission mechanism and a workpiece conveying mechanism; The drive mechanism includes a servo motor (14) fixedly mounted on the base (7). The transmission mechanism includes a drive shaft (10) and a driven shaft (6), which are rotatably connected to the left and right ends of the base (7), respectively. The output shaft of the servo motor (14) is connected to the drive shaft (10) through a coupling. The workpiece conveying mechanism includes at least one synchronous belt (9), which is sleeved on the drive shaft (10) and the driven shaft (6), and its outer side is provided with a plurality of placement slots (8) for accommodating the workpiece (5) to be processed. The lifting mechanism includes a guide rod (12) and a hydraulic telescopic rod (13) mounted on the base (7). A lifting plate (1) is slidably connected to the guide rod (12), and the telescopic end of the hydraulic telescopic rod (13) is connected to the lifting plate (1). The clamping mechanism includes a hydraulic telescopic rod 2 (2) and a servo clamp (3) mounted on the lifting plate (1), wherein the telescopic end of the hydraulic telescopic rod 2 (2) is connected to the servo clamp (3); The servo clamp (3) includes a U-shaped seat (32), a second guide rod (33), two symmetrically arranged clamps (31), and a third hydraulic telescopic rod (34) that drives the clamps (31) to move in opposite directions or in opposite directions. The lower end of the clamp (31) is provided with an arc-shaped clamping plate (35).

2. The automatic feeding device for turning hydraulic cylinder sealing grooves according to claim 1, characterized in that: The base (7) is an L-shaped bracket.

3. The automatic feeding device for turning hydraulic cylinder sealing grooves according to claim 1, characterized in that: The drive shaft (10) and driven shaft (6) are respectively provided with a drive gear (11) and a driven gear (4), and the synchronous belt (9) is a toothed belt that meshes with the gear for transmission.

4. The automatic feeding device for turning hydraulic cylinder sealing grooves according to claim 1, characterized in that: The synchronous belt (9) has two sections, arranged symmetrically front and back.

5. The automatic feeding device for turning hydraulic cylinder sealing grooves according to claim 1, characterized in that: The first guide rod (12) has two rods, which are arranged in parallel on the base (7).

6. The automatic feeding device for turning hydraulic cylinder sealing grooves according to claim 1, characterized in that: The U-shaped seat (32) of the servo clamp (3) is installed upside down, the second guide rod (33) is arranged horizontally inside the U-shaped seat (32), and the chuck (31) is slidably connected to the second guide rod (33).

7. The automatic feeding device for turning hydraulic cylinder sealing grooves according to claim 1, characterized in that: The inner arc surface of the arc-shaped clamp (35) is adapted to the outer circular surface of the workpiece (5) to be processed.

8. The automatic feeding device for turning hydraulic cylinder sealing grooves according to claim 1, characterized in that: The hydraulic telescopic rod one (13), hydraulic telescopic rod two (2) and hydraulic telescopic rod three (34) are all controlled by a unified hydraulic system.

9. The automatic feeding device for turning hydraulic cylinder sealing grooves according to claim 1, characterized in that: The placement slots (8) are evenly distributed along the length of the synchronous belt (9).

10. The automatic feeding device for turning hydraulic cylinder sealing grooves according to claim 1, characterized in that: It also includes a control system, which is connected to the servo motor (14) and the hydraulic system for signal coordination of feeding, lifting and clamping actions.

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