Automatic deburring machine for inner opening edge of sliding sleeve

Abstract

According to the automatic deburring machine for the inner opening edge of the sliding sleeve, the sliding sleeve is a sliding sleeve of a movable end joint in a transmission shaft of a constant velocity universal joint of a car, and the technical scheme is that double guide rails A, a limiting stopper C, a limiting stopper D, a bearing seat A, a bearing seat B, a sensor and a servo motor A are fixedly arranged on a machine frame, and the movable end of the servo motor A is fixedly connected with one end of a lead screw; a discharging sliding way, an electric cylinder, a double-guide-rail C, a limiting stopper E, a limiting stopper F and a positioning base are fixedly installed on the working table plate, a horizontal sliding plate is arranged on the double-guide-rail C, a conical air drill and the electric cylinder are arranged on the horizontal sliding plate, a three-fork type positioning device, a transverse sliding plate, a double-guide-rail A, a double-guide-rail B, a limiting stopper A and a limiting stopper B are fixedly connected to the positioning base, and a vertical sliding plate, a clamping air cylinder and a servo motor B are installed on the double-guide-rail B; the clamping air cylinder is fixedly connected with the rubber clamping block, and the vertical air cylinder is fixedly connected with the vertical sliding plate. According to the technology, burrs on the inner opening edge of the sliding sleeve can be automatically, efficiently and cleanly removed, efficiency is high, and it is guaranteed that the burr removing result is reliable.

Description

Technical Field

[0001] The utility model relates to an automatic processing device, in particular to a burr removing machine for the inner edge of a sliding sleeve opening. Background Art

[0002] The constant velocity universal joint drive shaft of a car consists of a fixed end joint, an intermediate shaft and a mobile end joint. Among them, the fixed end joint is directly connected to the hub of the car wheel, and the mobile end joint is directly connected to the differential of the engine. The power of the engine is transmitted to the wheel through the differential, the mobile end joint, the intermediate shaft, the fixed end joint and the hub, so as to drive the wheel to rotate. During the processing of the drive shaft, the removal of the burrs on the inner edge of the sliding sleeve in the mobile end joint is very important, which will directly affect the performance of the drive shaft. If the burrs on the inner edge of the sliding sleeve are not removed cleanly, the burrs will enter the sliding sleeve and mix with the lubricating grease after assembly, seriously affecting the lubricating performance of the lubricating grease, resulting in abnormal noise of the drive shaft, and quickly wearing out the parts in the mobile end joint in a short period of time, thus reducing the performance of the drive shaft or even causing the function to fail, making the user dissatisfied and there is a risk of being recalled. In the past, the burrs on the inner edge of the sliding sleeve were removed by an operator using a file for manual grinding. This way of removing burrs not only has a large labor intensity and low efficiency, but also due to human factors, there will be a phenomenon that the burrs are not removed cleanly. After being found in the finished product inspection, rework is required, which is not only time-consuming and laborious, but also affects the delivery schedule. Therefore, there is an urgent need for a machine on the assembly site that can efficiently and cleanly remove the burrs on the inner edge of the sliding sleeve. Summary of the Invention

[0003] The purpose of the utility model is to provide a burr removing machine for the inner edge of a sliding sleeve opening. Using this technology can automatically and efficiently remove the burrs on the inner edge of the sliding sleeve opening, not only with high efficiency, but also ensuring the reliability of the burr removal result.

[0004] The technical solution of the utility model is: an automatic deburring machine for the inner edge of a sliding sleeve, which includes a frame, a workbench board, and a framework. The workbench board is fixedly connected to the framework and the frame. Transversely arranged double guide rails A, a stopper C, a stopper D, a connecting block, a bearing seat A, a bearing seat B, and a sensor are fixedly installed on the frame. The fixed end of the servo motor A is fixedly connected to the frame through the connecting block, and the movable end of the servo motor A is fixedly connected to one end of the lead screw through a coupling. The lead screw is supported by the bearing seat and rotatably connected in the bearing seat. A slide plate unit is arranged on the double guide rails A and is slidably connected thereto; a discharge chute, an electric cylinder, double guide rails C, a stopper E, a stopper F, and a positioning seat are fixedly installed on the workbench board. A horizontal slide plate is arranged on the double guide rails C and is slidably connected thereto. A conical air drill is arranged on the horizontal slide plate and is fixedly connected to the horizontal slide plate through an adjusting pad. The movable end of the electric cylinder is fixedly connected to the horizontal slide plate through a coupling. A three-pronged locator is fixedly connected to the positioning seat; the slide plate unit includes a transverse slide plate, which is slidably connected to the double guide rails A. A nut is fixedly installed at the back of the transverse slide plate. The lead screw is helically connected to the nut. Double guide rails B, a stopper A, and a stopper B are fixedly installed on the transverse slide plate. A vertical slide plate is slidably installed on the double guide rails B. A servo motor B is fixedly installed on the vertical slide plate. The movable end of the servo motor B is fixedly connected to a clamping cylinder. The movable end of the clamping cylinder is fixedly connected to a rubber clamping block. A vertical cylinder is installed on the transverse slide plate. The movable end of the vertical cylinder is fixedly connected to the vertical slide plate.

[0005] A touch control display screen, a safety light curtain, and an audible and visual alarm are fixedly installed on the framework. A start button and an emergency stop button are arranged on the touch control display screen.

[0006] The automatic deburring machine for the inner edge of the sliding sleeve of the utility model is provided with an automatic control system. The automatic control system includes a controller and servo motor A, servo motor B, electric cylinder, vertical cylinder, clamping cylinder, and sensor that undertake different tasks. Each servo motor, electric cylinder, each cylinder, and sensor are installed in their corresponding units. An electric control cabinet is installed under the workbench board, and the controller is installed in the electric control cabinet. The touch control display screen, the audible and visual alarm, and each servo motor, electric cylinder, each cylinder, and sensor are electrically connected to the controller through signal lines.

[0007] The principle of the utility model is: the sliding sleeve is axially and circumferentially positioned through the three-pronged locator. The sliding sleeve is clamped and lifted by the servo motor A, the lead screw, the double guide rails A, and the slide plate unit, and then runs to the processing position above the conical air drill. On the one hand, the servo motor B drives the clamping cylinder to rotate the sliding sleeve. On the other hand, the electric cylinder drives the high-speed rotating conical air drill to perform a linear motion in the horizontal direction. The two work together to perform an interpolation motion according to the input program to complete the removal of the burrs on the inner edge of the sliding sleeve. After processing, the electric cylinder drives the conical air drill back to the original position (the conical air drill is opposite to the center of the sliding sleeve). The servo motor A, the lead screw, the double guide rails A, and the slide plate unit lift the processed workpiece and place it on the discharge channel. Then the slide plate unit runs to the right to clamp and lift the sliding sleeve for the next processing cycle...

[0008] The advantages of the present utility model are as follows: It can automatically remove the burrs on the inner edge of the sliding sleeve, not only ensuring 100% the quality of deburring, but also improving the processing efficiency. At the same time, it reduces the labor intensity of the operator and liberates the labor force. In the past, to remove the burrs on the inner edge of the sliding sleeve, the operator used a file for manual grinding. Since the inner edge is composed of multiple curves or arc segments and has a complex shape, this way of removing burrs not only has a high labor intensity and low efficiency, but also due to human factors, there will be a phenomenon that the burrs cannot be removed cleanly. After being found during the finished product inspection, rework is required, which is not only time-consuming and laborious, costly, but also affects the delivery schedule. If the workpiece with unclean burrs on the inner edge of the sliding sleeve is assembled, it will cause the burrs to enter the sliding sleeve and mix with the lubricating grease after assembly, seriously affecting the lubrication performance of the lubricating grease, resulting in abnormal noise of the transmission shaft, and quickly wearing out the parts inside the mobile joint in a short period of time, thereby reducing the performance of the transmission shaft or even causing the function to fail, leading to customer dissatisfaction and the risk of being recalled. The present utility model just solves these problems, realizes on-line automatic deburring, ensures 100% the reliability of deburring, reduces the cost, liberates the labor force, reduces the labor intensity of the operator, and the operator can monitor other equipment at the same time. The processing efficiency is increased to 3 times (the automatic deburring cycle is 30 seconds, and the manual deburring cycle is 90 seconds), increasing customer satisfaction and enhancing the core competitiveness of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic structural diagram of the automatic deburring machine for the inner edge of the sliding sleeve of the present utility model.

[0010] Figure 2 is Figure 1 The top view of the three-pronged locator in

[0011] Figure 3 It is a schematic structural diagram of the sliding sleeve.

[0012] Figure 4 is Figure 3 The top view of

[0013] Figure 5 is Figure 1 The enlarged view of the slide plate unit in

[0014] In the figure: 1 frame, 2 electric cylinder, 3 inlet of discharge chute, 4 discharge chute, 5 stopper B, 6 stopper C, 7 safety light curtain, 8 servo motor A, 9 connecting block, 10 emergency stop button, 11 start button, 12 touch display screen, 13 sound and light alarm, 14 bearing block A, 15 double guide rail A, 16 transverse slide plate, 17 vertical cylinder, 18 slide plate unit, 19 double guide rail B, 20 stopper A, 21 vertical slide plate, 22 frame, 23 lead screw, 24 stopper D, 25 bearing block B, 26 servo motor B, 27 clamping cylinder, 28 sensor, 29 rubber clamping block, 30 three-pronged locator, 31 positioning seat, 32 conical air drill, 33 stopper F, 34 double guide rail C, 35 adjusting pad, 36 workbench plate, 37 electric control cabinet, 38 horizontal slide plate, 39 stopper E, 40 three-equal-part convex element, 41 large end of sliding sleeve, 42 handle part of sliding sleeve. Detailed implementation manner

[0015] The utility model relates to automatic processing equipment, in particular to a deburring machine for the inner edge of the sliding sleeve of the mobile joint in the car constant velocity universal joint drive shaft. The deburring machine for the inner edge of the sliding sleeve of the utility model comprises a frame 1, a workbench plate 36, and a frame 22. The workbench plate is fixedly connected to the frame and the frame. On the frame 1, there are fixedly installed a horizontally arranged double guide rail A 15, a stopper C 6, a stopper D 24, a connecting block 9, a bearing block A 14, a bearing block B 25, and a sensor 28. The fixed end of the servo motor A 8 is fixedly connected to the frame 1 through the connecting block 9, and the connecting block 9 can play a role in adjusting the height of the servo motor A 8. The movable end of the servo motor A 8 is fixedly connected to one end of the lead screw 23 through a coupling. The lead screw 23 is supported by the bearing blocks 14 and 25 and is rotatably connected in the bearing blocks. A slide plate unit 18 is arranged on the double guide rail A 15 and is slidably connected thereto; on the workbench plate 36, there are fixedly installed a discharge chute 4, an electric cylinder 2, a double guide rail C 34, a stopper E 39, a stopper F 33, and a positioning seat 31. A horizontal slide plate 38 is arranged on the double guide rail C 34 and is slidably connected thereto. A conical air drill 32 is arranged on the horizontal slide plate, and the conical air drill is fixedly connected to the horizontal slide plate 38 through an adjusting pad 35. The movable end of the electric cylinder 2 is fixedly connected to the horizontal slide plate 38 through a coupling. A three-pronged locator 30 is fixedly connected to the positioning seat 31; the slide plate unit 18 includes a transverse slide plate 16. The transverse slide plate 16 is slidably connected to the double guide rail A 15. A nut is fixedly installed behind the transverse slide plate 16. The lead screw 23 is helically connected to the nut. On the transverse slide plate 16, there are fixedly installed a double guide rail B 19, a stopper A 20, and a stopper B 5. A vertical slide plate 21 is installed on the double guide rail B 19 and is slidably connected thereto. A servo motor B 26 is fixedly installed on the vertical slide plate 21. The movable end of the servo motor B 26 is fixedly connected to the clamping cylinder 27. The movable end of the clamping cylinder is fixedly connected to the rubber clamping block 29. A vertical cylinder 17 is installed on the transverse slide plate 16. The movable end of the vertical cylinder 17 is fixedly connected to the vertical slide plate 21.

[0016] The frame 22 is fixedly mounted with a touch screen 12 , a safety grating 7 , and an audible and visual alarm 13 . A start button 11 and an emergency stop button 10 are arranged on the touch screen.

[0017] The interior of the sliding sleeve is composed of a slideway divided into three equal parts, and each of the three corresponding inner edges of the slideway is composed of a plurality of curves or arc segments.

[0018] The cylinder described in this article is a mechanical product of the prior art. The cylinder generally has a cylinder body as a fixed end, which is fixedly mounted on a component corresponding to it. The cylinder also has a telescopic end as a moving end, which is also called a telescopic rod. The telescopic end reciprocates along its axial direction within a designed stroke. The telescopic cylinder is mainly divided into pneumatic telescopic cylinders, electric telescopic cylinders, electromagnetic telescopic cylinders and hydraulic telescopic cylinders, etc. In this application, pneumatic telescopic cylinders (cylinders) and electric telescopic cylinders are preferred; among them, pneumatic telescopic cylinders are prior art products that convert pressurized gas into mechanical action.

[0019] The servo motor is a prior art product. The servo motor is servo-controlled and can accurately control the speed, position and torque.

[0020] The electric cylinder is a prior art product, which is a modular product with an integrated design of a servo motor and a lead screw, and converts the rotational motion of the servo motor into linear motion.

[0021] Interpolation is the process by which the CNC system of a machine tool determines the trajectory of tool movement according to a certain method. It can also be said that the method of calculating the intermediate points between known points according to a certain algorithm based on certain data on a known curve is also called "data point densification"; the CNC device densifies the space between the starting point and the end point of the curve described by the program segment according to the information of the input part program, thereby forming the required contour trajectory. This "data densification" function is called "interpolation".

[0022] The frame is used to support the components of the devices at a designated position above the ground. In the present application, the frame is equipped with a frame enclosure. The frame, servo motors, stoppers, slides, guide rails, cylinders, and sensors are located in the frame enclosure to protect the components. The frame enclosure is composed of translucent or opaque plates between the frames 22. On-site operators can observe the operating status of the equipment in real time through the touch screen in the controller.

[0023] With the safety grating, when a human hand or other object breaks into the plane range between two gratings, the machine tool stops moving, thus ensuring the safety of the person and the machine tool.

[0024] In order to make the drawings clear, the pipelines, wires and standard parts in the drawings are omitted.

[0025] The human-machine interface of the controller is preferably a touch display screen, which is arranged on the surface of the electrical cabinet or mounted on the frame, facilitating on-site staff to operate. The staff can control the operation of the whole machine on this touch display screen. An audible and visual alarm is installed on the frame or electrical cabinet, which is used to emit specific sounds and lights to indicate the working status of the automatic deburring machine at the inner edge of the sliding sleeve, or to adjust various parameters, or to give an audible and visual alarm for the occurring faults.

[0026] The working process of the present utility model: Press the start button 11, place the large end 41 of the sliding sleeve (workpiece) downward on the three-forked locator 30, so that the three-equal-part convex part 40 of the three-forked locator 30 is placed in the three-equal-part slideway of the sliding sleeve (the three-equal-part convex part 40 is in clearance fit with the three-equal-part slideway), to perform axial and circumferential positioning on the sliding sleeve. When the sensor 28 detects a workpiece, the movable end of the servo motor A8 drives the lead screw 23 to rotate through the coupling. The lead screw drives the transverse slide plate 16 to move rightward along the double guide rail A15 to the material taking set position (directly above the three-forked locator) by rotating in the nut fixedly installed behind the transverse slide plate 16. The vertical cylinder 17 drives the vertical slide plate 21 to move downward along the double guide rail B19 until it contacts the stopper B5. The clamping cylinder 27 drives the rubber clamping block 29 to clamp the handle part 42 of the sliding sleeve. The vertical cylinder 17 drives the vertical slide plate 21 to retract until it contacts the stopper A20. The servo motor A8 drives the transverse slide plate 16 to move leftward to the processing set position (directly above the conical air drill 32). The vertical cylinder 17 drives the vertical slide plate 21 to move downward along the double guide rail B19 until it contacts the stopper B5. The servo motor B26 drives the clamping cylinder 27 and the sliding sleeve to rotate together according to the parameters set in the program. Synchronously, the conical air drill 32 starts. The electric cylinder 2 drives the horizontal slide plate 38 and the conical air drill 32 thereon to move along the double guide rail C34 according to the parameters set in the program. The interpolation movement of the two completes the processing requirement of removing the burrs at the inner edge of the sliding sleeve. The vertical cylinder 17 drives the vertical slide plate 21 to retract until it contacts the stopper A20. The servo motor A8 drives the transverse slide plate 16 to move leftward to the unloading set position (above the entrance 3 of the unloading slideway). The vertical cylinder 17 drives the vertical slide plate 21 to move downward along the double guide rail B19 until it contacts the stopper B5. The clamping cylinder 27 drives the rubber clamping block 29 to loosen the handle part 42 of the sliding sleeve, and place the sliding sleeve at the entrance of the unloading channel. The sliding sleeve slides out along the unloading slideway 4 under the action of its own gravity. The vertical cylinder 17 drives the vertical slide plate 21 to retract until it contacts the stopper A20. The servo motor A8 drives the transverse slide plate 16 to move rightward along the double guide rail A15 to the material taking set position (directly above the three-forked locator), grab the sliding sleeve again, and enter the next processing cycle...

[0027] The said stopper A20 and stopper B5 are used to limit the vertical slide plate 21; the stopper C6 and stopper D24 are used to limit the transverse slide plate 16; the stopper E39 and stopper F33 are used to limit the horizontal slide plate 38.

[0028] During the processing, the height of the positioning seat 31, the adjusting pad 35 or the inlet 3 of the unloading chute can be adjusted so that when the vertical slide plate 21 contacts the stopper B5, it meets the requirements of the grasping, processing and unloading positions of the sliding sleeve.

Claims

1. Automatic deburring machine for inner edge of sliding sleeve, characterized by: The invention comprises a frame (1), a workbench (36), and a frame (22). The workbench is fixedly connected to the frame and the frame. The frame (1) is fixedly provided with a double guide rail A (15) arranged transversely, a stopper C (6), a stopper D (24), a connecting block (9), a bearing seat A (14), a bearing seat B (25), and a sensor (28). The fixed end of the servo motor A (8) is fixedly connected to the frame (1) through the connecting block (9), and the movable end of the servo motor A (8) is connected to the lead screw (23) through a coupling. The lead screw (23) is supported by the bearing seats (14, 25) and is rotatably connected in the bearing seats. The double guide rail A (15) is provided with a slide unit (18) slidably connected thereto. The work table (36) is fixedly provided with a discharge slideway (4), an electric cylinder (2), a double guide rail C (34), a stopper E (39), a stopper F (33), and a positioning seat (31). The double guide rail C (34) is provided with a horizontal slide (38) slidably connected thereto. The horizontal slide is provided with a conical air drill (3 2), the conical air drill is fixedly connected to the horizontal slide plate (38) through an adjustment pad (35), the movable end of the electric cylinder (2) is fixedly connected to the horizontal slide plate (38) through a coupling, and a three-pronged positioner (30) is fixedly connected to the positioning seat (31); the slide plate unit (18) includes a transverse slide plate (16), the transverse slide plate (16) is slidably connected to the double guide rail A (15), a nut is fixedly installed at the rear of the transverse slide plate (16), a lead screw (23) is spirally connected to the nut, and a screw (23) is fixedly installed on the transverse slide plate (16) A double guide rail B (19), a stopper A (20), and a stopper B (5) are provided. A slidably connected vertical slide plate (21) is provided on the double guide rail B (19). A servo motor B (26) is fixedly provided on the vertical slide plate (21). The movable end of the servo motor B (26) is fixedly connected to a clamping cylinder (27). The movable end of the clamping cylinder is fixedly connected to a rubber clamping block (29). A vertical cylinder (17) is provided on the transverse slide plate (16). The movable end of the vertical cylinder (17) is fixedly connected to the vertical slide plate (21).

2. The automatic deburring machine for the inner edge of a sleeve according to claim 1, characterized in that: The frame (22) is fixedly mounted with a touch screen (12), a safety grating (7), and an audible and visual alarm (13); a start button (11) and an emergency stop button (10) are arranged on the touch screen.

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