Automatic intelligent production line for flange machining

Abstract

The invention relates to the technical field of flange machining, and provides a flange machining automatic intelligent production line which comprises a first lathe, a second lathe, a drilling machine, a ground rail and a mechanical arm and further comprises a clamping mechanism, a temporary storage table, a positioning table and a positioning mechanism, the mechanical arm is movably arranged on the ground rail, and the clamping mechanism is arranged at the movable end of the mechanical arm; the clamping mechanism is used for clamping and positioning flanges of different models, the temporary storage table is used for temporarily storing workpieces to be machined and machined workpieces, the positioning table is arranged on the temporary storage table in a turnover mode, a containing groove used for containing the flange workpieces is formed in the positioning table, and the positioning mechanism is arranged on the positioning table and used for positioning the flange workpieces to the center of the containing groove. The positioning device is used for solving the problems of inaccurate positioning and subsequent machining deviation caused by lack of positioning in the flowing process of a flange workpiece between procedures in the prior art.

Description

Technical Field

[0001] This invention relates to the field of flange processing technology, specifically to an automated intelligent production line for flange machining. Background Technology

[0002] Flanges are connecting parts between shafts, used for connecting pipe ends, and also used on equipment inlets and outlets for connecting two pieces of equipment. In the production of flanges, the blank needs to be turned on a lathe and then the side holes are drilled using a drilling machine.

[0003] Traditionally, workpieces are manually transferred between processes, which is slow and poses safety hazards due to the weight of the flanges. With technological advancements, automated production lines are now used to transfer flanges between processes, achieving automated flange production. Conveyor belts or robotic arms are used for flange workpiece transfer. However, the accuracy of conveyor belt transport is difficult to guarantee, and when using robotic arms, the flange's posture and position depend on the robotic arm's gripping accuracy. After one process is completed, the workpiece is temporarily stored in a buffer station. Currently, most of these stations only temporarily store the workpiece and lack a positioning and calibration process. Posture deviations or workpiece offsets during robotic arm gripping can lead to machining misalignment or clamping failure. Summary of the Invention

[0004] This invention proposes an automated intelligent production line for flange machining, which solves the problem in the prior art of flange workpieces lacking positioning during the transfer between processes, resulting in inaccurate positioning and subsequent processing deviations.

[0005] The technical solution of the present invention is as follows: An automated intelligent production line for flange machining includes a lathe 1, a lathe 2, a drilling machine, a floor rail, and a robotic arm, wherein the robotic arm is movably mounted on the floor rail, and further includes: A clamping mechanism, disposed at the movable end of the robotic arm, is used to clamp and position flanges of different models. The clamping mechanism includes: A clamping platform is fixedly mounted on the movable end of the robotic arm; Two chucks are provided, and the chucks are fixedly mounted on the clamping table; The chuck has multiple jaws, which are movably mounted on the chuck. The multiple jaws move synchronously to clamp the inner ring of the flange. A buffer station is used to temporarily store workpieces that are to be processed or have already been processed. A positioning table, which can be flipped and mounted on the buffer platform, is provided with a placement slot for placing flange workpieces; A positioning mechanism, disposed on the positioning platform, is used to position the flange workpiece to the center of the placement slot. The positioning mechanism includes: A positioning block, wherein multiple positioning blocks are provided, and the positioning blocks are movably mounted on the positioning platform for positioning and clamping the flange workpiece.

[0006] To enable the positioning stage to flip, a flipping mechanism for flipping the positioning stage is provided on the buffer platform, the flipping mechanism comprising: A rotating shaft is used to rotatably mount the positioning stage on the buffer platform; Driven gear, the driven gear being fixedly mounted on the outside of the rotating shaft; A drive rack is movably mounted on the buffer platform, and the drive rack meshes with the driven gear.

[0007] To ensure the stability of the positioning stage after rotation, a limiting component is provided on the buffer stage for limiting the positioning stage. The limiting component includes: The insertion rod is movably mounted on the buffer platform, and the positioning platform has a slot that matches the insertion rod.

[0008] To achieve synchronous movement of multiple jaws, a drive bevel gear is rotatably mounted on the clamping platform, and multiple driven bevel gears are rotatably mounted on the clamping platform. Each driven bevel gear corresponds to a jaw, and the driven bevel gear meshes with the drive bevel gear. Each driven bevel gear is coaxially fixedly connected to a lead screw, and the lead screw engages with the jaw for transmission.

[0009] To enable the movement of the robotic arm, a movable base is fixedly connected to the bottom of the robotic arm. The movable base and the ground rail are in sliding engagement. A traveling gear is rotatably mounted on the movable base, and a fixed rack is fixedly mounted on the ground rail. The traveling gear and the fixed rack mesh with each other.

[0010] The working principle and beneficial effects of this invention are as follows: In this invention, a robotic arm clamps the flange blank onto a positioning table. The positioning block performs center positioning calibration on the workpiece, which facilitates the subsequent precise gripping of the workpiece by the robotic arm onto the clamping positions of the lathe and drilling machine for processing. This reduces processing errors caused by gripping deviations. After position adjustment, the workpiece is clamped onto lathe one for single-sided turning, clamped onto the positioning table for secondary positioning calibration and flipped, clamped onto lathe two for turning on the other side, clamped onto the positioning table for a third positioning calibration, and clamped onto the drilling machine for drilling, ensuring the accuracy of turning and drilling. Attached Figure Description

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top-view planar structural diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the robotic arm, the movable seat, and the clamping mechanism of the present invention; Figure 4 This is a schematic diagram of the clamping mechanism of the present invention; Figure 5 This is a first-view structural schematic diagram of the buffer platform, positioning platform, flipping mechanism, and positioning mechanism of the present invention. Figure 6 This is a second-view structural schematic diagram of the buffer platform, positioning platform, flipping mechanism, and positioning mechanism of the present invention. Figure 7 For the present invention Figure 1 A magnified schematic diagram of the partial structure at point A in the middle; Figure 8 For the present invention Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0013] In the picture: 1. Lathe 1; 2. Lathe 2; 3. Drilling machine; 4. Ground rail; 5. Robotic arm; 6. Moving seat; 7. Traveling gear; 8. Motor 1; 9. Fixed rack; 10. Buffer table; 11. Positioning table; 101. Clamping table; 102. Chuck; 103. Pallet; 104. Drive bevel gear; 105. Motor II; 106. Driven bevel gear; 107. Lead screw; 201. Rotating shaft; 202. Driven gear; 203. Drive rack; 204. Electric cylinder one; 301. Positioning block; 302. Electric cylinder two; 401. Insert rod; 402. Electric cylinder three. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0015] like Figures 1 to 8As shown in the figure, this embodiment proposes an automated intelligent production line for flange machining, including a lathe 1, a lathe 2, a drilling machine 3, a ground rail 4, and a robotic arm 5. The robotic arm 5 is movably mounted on the ground rail 4, and also includes a clamping mechanism, a buffer table 10, a positioning table 11, and a positioning mechanism.

[0016] To enable the movement of the robotic arm 5, a movable base 6 is fixedly connected to the bottom of the robotic arm 5. The movable base 6 and the ground rail 4 are in sliding engagement. A traveling gear 7 is rotatably mounted on the movable base 6. A motor 8 is mounted on the movable base 6, and the traveling gear 7 is fixedly mounted on the output end of the motor 8. A fixed rack 9 is fixedly mounted on the ground rail 4. The traveling gear 7 and the fixed rack 9 mesh, such as... Figure 3 and Figure 8 The motor 8 can drive the walking gear 7 to move precisely along the fixed rack 9, thereby moving the moving seat 6 and the robotic arm 5 to clamp the flange workpiece to the clamping and positioning positions of different workstations and the positioning table 11. A vision inspection module can also be added to the loading area or the robotic arm 5 to correct the gripping posture in real time.

[0017] A clamping mechanism is located at the movable end of the robotic arm 5 and is used to clamp and position flanges of different models. The clamping mechanism includes a clamping table 101, a chuck 102, and jaws 103. The clamping table 101 is fixedly mounted at the movable end of the robotic arm 5. Two chucks 102 are provided and fixedly mounted on the clamping table 101. Multiple jaws 103 are provided and movably mounted on the chuck 102. Multiple jaws 103 move synchronously to clamp the inner ring of the flange. To achieve synchronous movement of multiple jaws 103... The clamping table 101 is rotatably equipped with a drive bevel gear 104. A second motor 105 is mounted on the clamping table 101, and the drive bevel gear 104 is fixedly mounted at the output end of the second motor 105. Multiple driven bevel gears 106 are rotatably mounted on the clamping table 101, with each driven bevel gear 106 corresponding to a chuck 103. The driven bevel gears 106 mesh with the drive bevel gears 104. A lead screw 107 is coaxially and fixedly connected to each driven bevel gear 106, and the lead screw 107 engages with the chuck 103 via a threaded connection for transmission. Figure 4 As shown, the motor 105 drives the drive bevel gear 104 to rotate, which in turn drives multiple driven bevel gears 106 to rotate synchronously, that is, multiple lead screws 107 to rotate synchronously, which in turn drives multiple jaws 103 to move synchronously outward or inward. When the jaws 103 move inward, they can extend into the inner ring of the flange. When the jaws 103 move outward, they can fit tightly against the inner ring of the flange to achieve stable clamping. Furthermore, the clamping table 101 is located at the center of the flange, which facilitates ensuring the accuracy of clamping and positioning positions when the flange is subsequently transferred to each workstation.

[0018] Please refer to Figures 5 to 6The buffer platform 10 is used to temporarily store workpieces to be processed and those already processed. The positioning platform 11 is rotatably mounted on the buffer platform 10. The positioning platform 11 has a placement slot for placing flange workpieces. To achieve the rotation of the positioning platform 11, the buffer platform 10 is equipped with a rotation mechanism for rotating the positioning platform 11. The rotation mechanism includes a rotating shaft 201, a driven gear 202, and a drive rack 203. The positioning platform 11 is rotatably mounted on the buffer platform 10 via the rotating shaft 201. The driven gear 202 is fixedly mounted on the outside of the rotating shaft 201. The drive rack 203 is movably mounted on the buffer platform 10. An electric cylinder 204 is mounted on the buffer platform 10. The drive rack 203 is fixedly mounted on the output end of the electric cylinder 204. The drive rack 203 and the driven gear 204 are connected to the output end of the electric cylinder 204. The driving gear 202 meshes, and the electric cylinder 204 drives the drive rack 203 to move linearly, causing the driven gear 202 and the positioning table 11 to rotate. The flange workpiece is stably clamped on the positioning table 11 by the positioning mechanism. The positioning table 11 drives the flange workpiece to rotate, and then the chuck 103 clamps the workpiece a second time to achieve the rotation of the workpiece. It is then transferred to the lathe 2 for turning of the other end face of the flange workpiece. Two sets of clamping mechanisms are set on the same clamping table 101. The drilling machine 3 is a dual-axis CNC machining center. By rotating the clamping table 101, the two clamping mechanisms can clamp two flange workpieces at a time. The two flange workpieces are then transferred to the drilling machine 3 for simultaneous drilling of the two workpieces, further improving the processing efficiency.

[0019] A positioning mechanism is set on the positioning table 11 to position the flange workpiece to the center of the placement slot. The positioning mechanism includes positioning blocks 301, and multiple positioning blocks 301 are provided. The positioning blocks 301 are movably set on the positioning table 11 for positioning and clamping the flange workpiece. An electric cylinder 302 is installed on the positioning table 11. The positioning blocks 301 are fixedly set at the output end of the electric cylinder 302. There are four positioning blocks 301 distributed around the placement slot. The electric cylinder 302 pushes the positioning blocks 301 to move towards the center to clamp the workpiece, thereby accurately centering flange workpieces of different specifications. The robotic arm 5 drives the clamping mechanism to move to the center position of the placement slot and align with the inner ring of the flange workpiece, which facilitates the accurate connection of subsequent multi-process processing. After the jaw 103 stably clamps the workpiece, the electric cylinder 302 drives the positioning blocks 301 away from the workpiece to release the positioning constraint.

[0020] To ensure the stability of the positioning table 11 after rotation, a limiting component is provided on the buffer table 10 to limit the positioning table 11. The limiting component includes a rod 401, which is movably mounted on the buffer table 10. The positioning table 11 has a slot that matches the rod 401. An electric cylinder 402 is installed on the buffer table 10. The rod 401 is fixedly mounted on the output end of the electric cylinder 402. The electric cylinder 402 can drive the rod 401 to move. After the positioning table 11 is rotated into position, the electric cylinder 402 drives the rod 401 to insert into the slot and lock the positioning table 11, ensuring the stability and horizontal state of the workpiece, and facilitating the clamping mechanism to accurately clamp the flange workpiece.

[0021] The working principle or usage process of this automated intelligent production line for flange machining is as follows: The staff places the stacked flange blanks in the loading area, and the robotic arm 5 drives the clamping mechanism to move to the loading area. The vision inspection module then picks up the corresponding flange blanks and places them on the positioning table 11. Electric cylinder 2 302 drives positioning block 301 to move towards the center position to position the flange blank and fix it in the center position of the placement slot. The robotic arm 5 drives clamping table 101 to move to the center position of the placement slot. The jaws 103 are aligned with the inner ring. Motor 2 105 drives multiple jaws 103 to move outward synchronously to stably clamp the inner ring of the flange blank. The robotic arm 5 moves the flange blank to lathe 1 for end face turning. After turning, it moves to the positioning table 11 for positioning and flipping. Before flipping, the insert rod 401 is removed from the slot. After flipping, the insert rod 401 is inserted into the slot to ensure the stability of the positioning table 11. Then, the flipped flange semi-finished product is clamped and moved to lathe 2 for the other end face turning. After turning both sides, it is temporarily positioned by the positioning table 11 and then transferred to the drilling machine 3 for drilling. When machining flange workpieces on lathe 1, lathe 2, and drilling machine 3, the robotic arm 5 can be used to switch between multiple workstations for the flange blank or flange workpiece. For example, when machining the other end face on lathe 2, the flange blank on the positioning table 11 can be moved into lathe 1, or the finished product in drilling machine 3 can be removed and sent to the unloading area for conveying, so as to realize efficient and continuous multi-process machining.

[0022] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. 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. An automated intelligent production line for flange machining, comprising a lathe one (1), a lathe two (2), a drilling machine (3), a ground rail (4), and a robotic arm (5), wherein the robotic arm (5) is movably mounted on the ground rail (4), characterized in that, Also includes: A clamping mechanism is provided at the movable end of the robotic arm (5) for clamping and positioning flanges of different models; The buffer station (10) is used to temporarily store workpieces to be processed and those that have already been processed. Positioning platform (11), which can be flipped and mounted on the buffer platform (10), and the positioning platform (11) is provided with a placement slot for placing flange workpieces; A positioning mechanism is provided on the positioning table (11) for positioning the flange workpiece to the center of the placement slot.

2. The automated intelligent production line for flange machining according to claim 1, characterized in that, The clamping mechanism includes: A clamping table (101) is fixedly disposed at the movable end of the robotic arm (5); Two chucks (102) are provided, and the chucks (102) are fixedly mounted on the clamping table (101); The chuck (103) is provided in multiple ways. The chuck (103) is movably disposed on the chuck (102). The multiple chucks (103) move synchronously to clamp the inner ring of the flange.

3. The automated intelligent production line for flange machining according to claim 2, characterized in that, The positioning mechanism includes: Positioning blocks (301), multiple positioning blocks (301) are provided, and the positioning blocks (301) are movably disposed on the positioning table (11) for positioning and clamping flange workpieces.

4. The automated intelligent production line for flange machining according to claim 3, characterized in that, The buffer platform (10) is provided with a flipping mechanism for flipping the positioning platform (11).

5. The automated intelligent production line for flange machining according to claim 4, characterized in that, The flipping mechanism includes: A rotating shaft (201) is used to rotate the positioning stage (11) on the buffer stage (10). Driven gear (202), which is fixedly mounted on the outside of the rotating shaft (201); A drive rack (203) is movably mounted on the buffer platform (10), and the drive rack (203) meshes with the driven gear (202).

6. The automated intelligent production line for flange machining according to claim 5, characterized in that, The buffer platform (10) is provided with a limiting component for limiting the positioning platform (11).

7. The automated intelligent production line for flange machining according to claim 6, characterized in that, The limiting component includes: Insert rod (401), which is movably disposed on the buffer platform (10), and the positioning platform (11) is provided with a slot that matches the insert rod (401).

8. The automated intelligent production line for flange machining according to claim 7, characterized in that, A drive bevel gear (104) is rotatably mounted on the clamping platform (101), and a plurality of driven bevel gears (106) are rotatably mounted on the clamping platform (101). The driven bevel gears (106) correspond one-to-one with the chucks (103). The driven bevel gears (106) mesh with the drive bevel gears (104). The driven bevel gears (106) are coaxially fixedly connected to a lead screw (107), and the lead screw (107) is threadedly engaged with the chucks (103) for transmission.

9. The automated intelligent production line for flange machining according to claim 8, characterized in that, The bottom of the robotic arm (5) is fixedly connected to a movable seat (6), which is in sliding fit with the ground rail (4). A traveling gear (7) is rotatably mounted on the movable seat (6), and a fixed rack (9) is fixedly mounted on the ground rail (4). The traveling gear (7) and the fixed rack (9) mesh with each other.

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