Lathe automatic feeding and discharging device for long bar workpieces

Abstract

The invention discloses a lathe automatic feeding and discharging device for long bar workpieces. The lathe automatic feeding and discharging device comprises a rack, a control box, a feeding mechanism, a pushing mechanism and a discharging structure. The feeding mechanism comprises a discharging box, a material pushing air cylinder, a material pushing frame plate and a material supporting frame. The feeding mechanism conveys to-be-machined bars to the pushing mechanism. The pushing mechanism comprises a servo motor, a pushing cross beam, a conveying belt, a conveying frame and a pushing frame, and the pushing mechanism conveys a bar to a lathe spindle hole for machining; the discharging structure comprises a discharging air cylinder, a discharging barrel and a discharging box. The discharging structure conducts discharging on the machined workpieces. A manufacturing system can be formed together with a numerical control lathe, the procedures of manual feeding and discharging are replaced, the labor intensity of worker operation is reduced, and the automation degree and the production efficiency of the production process are remarkably improved; the device can be suitable for batch machining such as cylindrical turning and drilling of bar parts, operation is convenient, maintenance is easy, and progress, popularization and use of the whole industry are promoted.

Description

Technical Field

[0001] This invention relates to the field of automatic loading and unloading technology for lathes, and specifically to an automatic loading and unloading device for long bar workpieces on a lathe. Background Technology

[0002] With continuous technological advancements and improvements in mechanical manufacturing technology, the machinery manufacturing industry has entered an era of automation. CNC lathes are now widely used in various manufacturing enterprises, significantly improving production efficiency. Among these, automatic loading and unloading devices are a crucial component of CNC lathes, enabling continuous and automated production.

[0003] In CNC lathe machining, bar stock workpieces account for a large proportion. Currently, the loading and unloading of these workpieces are mostly semi-automated. Therefore, it is very necessary to realize fully automated loading and unloading of bar stock workpieces in lathe machining, and it is urgent to improve the efficiency of bar stock workpiece machining in lathe. Summary of the Invention

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to provide an automatic loading and unloading device for long bar workpieces on a lathe.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: an automatic loading and unloading device for a lathe for long bar workpieces, comprising a frame, a control box, a feeding mechanism, a pushing mechanism, and an unloading structure; The feeding mechanism includes a feeding box, a pushing cylinder, a pushing frame plate, and a supporting frame. The pushing cylinder drives the pushing frame plate to move, pushing the rod material in the feeding box into the supporting frame. The pushing mechanism includes a servo motor, a pushing beam, a conveyor belt, a conveyor frame, and a pushing frame. The pushing beam is fixedly mounted on the machine frame, the servo motor is fixed to one end of the pushing beam, the conveyor belt is mounted on the pushing beam via axle components, the pushing frame is fixed to the conveyor belt and is equipped with a pushing rod, and the pushing frame is mounted on the moving worktable of the lathe. The servo motor drives the conveyor belt, and the conveyor belt synchronously drives the pushing frame and the pushing rod on it to move. The pushing rod pushes the bar stock workpiece onto the pushing frame and then pushes it to the spindle hole of the lathe for processing. The feeding structure includes a feeding cylinder, a feeding tube, and a feeding box. The feeding tube is installed on the moving worktable of the lathe, and the feeding cylinder is installed on one side of the lathe. It can push the processed bar stock into the feeding tube, and the bar stock in the feeding tube falls into the feeding box under continuous pushing.

[0006] The aforementioned automatic loading and unloading device for long bar workpieces on a lathe also includes a transfer mechanism. The transfer mechanism includes a transfer beam, a lifting cylinder, a rotary cylinder, a conversion frame, and conversion grippers. The transfer beam is fixed on the machine frame, the lifting cylinder is fixed at the end of the transfer beam, the rotary cylinder is connected to the lifting cylinder, and the conversion grippers are connected to the rotary cylinder. The conversion frame is installed on the moving table of the lathe. The unloading cylinder pushes part of the machined bar onto the conversion frame. The lifting cylinder drives the conversion grippers to lift and pick up the bar on the conversion frame. The rotary cylinder rotates and drives the bar on the conversion grippers to change direction. After the change is completed, the pushing rod in the pushing mechanism pushes the bar back to the spindle hole of the lathe for machining.

[0007] In the above-mentioned automatic loading and unloading device for a lathe for long bar workpieces, a push mounting plate is provided on one side of the feeding box, a pusher plate is slidably installed on one side of the push mounting plate, a pusher cylinder is fixedly installed with the push mounting plate, and the pusher cylinder pushes the pusher plate to push the bar at the bottom of the feeding box into the support frame.

[0008] In the above-mentioned automatic loading and unloading device for a lathe for long bar workpieces, a bar sensor is provided at the support frame, and the feeding mechanism also includes a discharge cylinder and a baffle. The discharge cylinder is fixedly connected to the discharge box through a connecting plate. The bar sensor senses whether there is a bar in the support frame. The baffle moves up and down on one side of the support frame under the drive of the discharge cylinder, controlling the bar to fall to the support frame.

[0009] In the above-mentioned automatic loading and unloading device for a lathe for long bar workpieces, a bar support plate is provided in the loading box. The bar support plate is connected to one side of the loading box by an adjusting rod, and the distance between the bar support plate and the other side of the loading box is adjusted by the adjusting rod.

[0010] In the above-mentioned automatic loading and unloading device for a lathe for long bar workpieces, the same end of the push mounting plate and the pusher plate is provided with a feeding slope that slopes downward toward the support frame.

[0011] The present invention has the following beneficial effects: This invention can be integrated with a CNC lathe to form a manufacturing system, replacing manual material loading and unloading processes, reducing the labor intensity of workers, and significantly improving the automation level and production efficiency of the production process. It is applicable to batch processing of bar stock parts, such as external turning and drilling, and is easy to operate and maintain, promoting the progress and widespread use of the entire industry. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 , Figure 4This is a schematic diagram of the present invention installed and used in conjunction with a lathe. Detailed Implementation

[0013] The invention will be further described with reference to the accompanying drawings.

[0014] Please see Figures 1 to 4 The present invention provides an automatic loading and unloading device for a lathe for long bar workpieces, including a frame 1, a control box 2, a feeding mechanism 3, a pushing mechanism 4, and an unloading structure 5; The feeding mechanism 3 includes a feeding box 6, a pushing cylinder 7, a pushing frame plate 8, and a supporting frame 9. The pushing cylinder 7 drives the pushing frame plate 8 to move, pushing the rod material in the feeding box 6 into the supporting frame 9. The pushing mechanism 4 includes a servo motor 10, a pushing beam 11, a conveyor belt 12, a conveyor frame 13, and a pushing frame 14. The pushing beam 11 is fixedly installed on the frame 1, and the servo motor 10 is fixed at one end of the pushing beam 11. The conveyor belt 12 is installed on the pushing beam 11 through a wheel axle. The pushing frame 14 is fixed to the conveyor belt 12 and is equipped with a pushing rod 15. The pushing frame 14 is installed on the moving table 16-1 of the lathe 16. The servo motor 10 drives the conveyor belt 12, and the conveyor belt 12 synchronously drives the pushing frame 14 and the pushing rod 15 on it to move. The pushing rod 15 pushes the bar stock workpiece onto the pushing frame 14 and then pushes it to the spindle hole 16-2 of the lathe 16 for processing. The feeding structure 5 includes a feeding cylinder 17, a feeding tube 18, and a feeding box 19. The feeding tube 18 is installed on the movable worktable 16-1 of the lathe 16, and the feeding cylinder 17 is installed on one side of the lathe 16. It can push the processed bar stock into the feeding tube 18, and the bar stock in the feeding tube 18 falls into the feeding box 19 under continuous pushing.

[0015] Furthermore, it also includes a transfer mechanism 20, which includes a transfer beam 21, a lifting cylinder 22, a rotating cylinder 23, a conversion frame 24, and a conversion gripper 25. The transfer beam 21 is fixed on the machine frame 1, the lifting cylinder 22 is fixed at the end of the transfer beam 21, the rotating cylinder 23 is connected to the lifting cylinder 22, and the conversion gripper 25 is connected to the rotating cylinder 23. The conversion frame 24 is installed on the moving worktable 16-1 of the lathe 16. The unloading cylinder 17 pushes part of the processed bar stock to the conversion frame 24. The lifting cylinder 22 drives the conversion gripper 25 to lift and pick up the bar stock on the conversion frame 24. The rotating cylinder 23 rotates and drives the bar stock on the conversion gripper 25 to change direction. After the change of direction, the pushing rod 15 in the pushing mechanism 4 pushes the bar stock back to the spindle hole 16-2 of the lathe 16 for processing.

[0016] Specifically, a push mounting plate 26 is provided on one side of the feeding box 6, a push rack plate 8 is slidably installed on one side of the push mounting plate 26, and a push cylinder 7 is fixedly installed with the push mounting plate 26. The push cylinder 7 pushes the push rack plate 8 and pushes the bar material at the bottom of the feeding box 6 into the support frame 9.

[0017] Furthermore, a bar material sensor 27 is provided at the material support frame 9, and the feeding mechanism 3 also includes a discharge cylinder 28 and a baffle 29. The discharge cylinder 28 is fixedly connected to the discharge box 6 through a connecting plate 30. The bar material sensor 27 senses whether there is bar material in the material support frame 9. The baffle 29 moves up and down on one side of the material support frame 9 under the drive of the discharge cylinder 28 to control the bar material to fall into the material support frame 9.

[0018] Furthermore, the feeding box 6 is provided with a bar stock support plate 31, which is connected to one side of the feeding box 6 by an adjusting rod 32. The distance between the bar stock support plate 31 and the other side of the feeding box 6 is adjusted by the adjusting rod 32.

[0019] 6. The automatic loading and unloading device for a long bar workpiece on a lathe according to claim 3, characterized in that: the same end of the push mounting plate 26 and the pusher plate 8 is provided with a loading ramp 33 that slopes downward toward the support frame 9.

[0020] The working principle of the present invention is further explained in detail below: Feeding process: The bar stock to be processed is placed into the feeding box 6. The bar stock to be processed is arranged closely along the inclined inner wall of the feeding box 6. The pushing cylinder 7 pushes the pushing frame plate 8 back and forth according to the system settings, thereby lifting the bar stock to be processed one by one. After the bar stock to be processed is pushed to the top, it rolls down into the support frame 9 at the discharge inclined surface 33 of the pushing mounting plate 26 and the pushing frame plate 8. During this process, the pushing cylinder 7, in coordination with the action of the pushing cylinder 7, pushes the pushing frame plate 8, thereby controlling the bar stock to be processed to fall into the support frame 9.

[0021] Material feeding process: When the bar stock sensor 27 at the material support frame 9 detects the bar stock, the servo motor 10 drives the conveyor belt 12. The conveyor belt 12 synchronously drives the pusher frame 14 and its pusher rod 15 to move. The pusher rod 15 pushes the bar stock in the material support frame 9 onto the pusher frame 14, and then continues to push it to the spindle hole 16-2 of the lathe 16 for cutting. The spindle hole of the lathe 16 is equipped with a positioning block. The positioning block and the three-jaw chuck are used to position and clamp the workpiece, and the bar stock is processed sequentially according to the preset program.

[0022] Reversal process: When reversal is required after the bar stock is partially processed, the moving table 16-1 on the lathe 16 moves according to the setting so that the conversion frame 24 on it corresponds to the spindle hole of the lathe 16. The unloading cylinder 17 pushes part of the processed bar stock to the conversion frame 24. The lifting cylinder 22 drives the conversion jaw 25 to lift and clamp the bar stock on the conversion frame 24. The rotating cylinder 23 rotates and drives the bar stock on the conversion jaw 25 to reverse. After the reversal is completed, the pushing rod 15 in the pushing mechanism 4 pushes the bar stock back to the spindle hole 16-2 of the lathe 16 for processing.

[0023] Material unloading process: After the bar stock is processed, the movable table 16-1 on the lathe 16 moves according to the settings, so that the unloading cylinder 18 on it aligns with the spindle hole of the lathe 16, pushing the processed bar stock into the unloading cylinder 18. The bar stock in the unloading cylinder 18 falls into the unloading box 19 under continuous pushing. The movable table 16-1 is moved in a cycle.

[0024] The above provides a detailed description of an automatic loading and unloading device for long bar workpieces on a lathe, as provided in the embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions disclosed in the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. An automatic loading and unloading device for a lathe containing long bar stock, characterized in that: Includes frame (1), control box (2), feeding mechanism (3), pushing mechanism (4), and unloading structure (5); The feeding mechanism (3) includes a feeding box (6), a pushing cylinder (7), a pushing frame plate (8), and a supporting frame (9). The pushing cylinder (7) drives the pushing frame plate (8) to move, pushing the rod material in the feeding box (6) into the supporting frame (9). The pushing mechanism (4) includes a servo motor (10), a pushing beam (11), a conveyor belt (12), a conveyor frame (13), and a pushing frame (14). The pushing beam (11) is fixedly installed on the frame (1). The servo motor (10) is fixed at one end of the pushing beam (11). The conveyor belt (12) is installed on the pushing beam (11) through a wheel axle. The pushing frame (14) is fixed to the conveyor belt (12) and is equipped with a pushing rod (15). The pushing frame (14) is installed on the moving worktable (16-1) of the lathe (16). The servo motor (10) drives the conveyor belt (12). The conveyor belt (12) synchronously drives the pushing frame (14) and the pushing rod (15) on it to move. The pushing rod (15) pushes the bar stock workpiece to the pushing frame (14) and then pushes it to the spindle hole (16-2) of the lathe (16) for processing. The feeding structure (5) includes a feeding cylinder (17), a feeding tube (18), and a feeding box (19). The feeding tube (18) is installed on the moving worktable (16-1) of the lathe (16), and the feeding cylinder (17) is installed on one side of the lathe (16). It can push the processed bar stock into the feeding tube (18), and the bar stock in the feeding tube (18) falls into the feeding box (19) under continuous pushing.

2. The automatic loading and unloading device for long bar workpieces on a lathe according to claim 1, characterized in that: It also includes a transfer mechanism (20), which includes a transfer beam (21), a lifting cylinder (22), a rotary cylinder (23), a transfer frame (24), and a transfer gripper (25). The transfer beam (21) is fixed on the machine frame (1), the lifting cylinder (22) is fixed at the end of the transfer beam (21), the rotary cylinder (23) is connected to the lifting cylinder (22), the transfer gripper (25) is connected to the rotary cylinder (23), and the transfer frame (24) is mounted on the lathe. On the moving workbench (16-1) of 16), the unloading cylinder (17) pushes part of the processed bar stock to the conversion frame (24). The lifting cylinder (22) drives the conversion jaws (25) to lift and clamp the bar stock on the conversion frame (24). The rotating cylinder (23) rotates and drives the bar stock on the conversion jaws (25) to change direction. After the change is completed, the pushing rod (15) in the pushing mechanism (4) pushes the bar stock back to the spindle hole (16-2) of the lathe (16) for processing.

3. The automatic loading and unloading device for long bar workpieces on a lathe according to claim 1, characterized in that: A push mounting plate (26) is provided on one side of the feeding box (6). The push rack plate (8) is slidably installed on one side of the push mounting plate (26). The push cylinder (7) is fixedly installed with the push mounting plate (26). The push cylinder (7) pushes the push rack plate (8) and pushes the bar material at the bottom of the feeding box (6) into the support frame (9).

4. The automatic loading and unloading device for long bar workpieces on a lathe according to claim 1, characterized in that: A bar material sensor (27) is provided at the material support frame (9). The feeding mechanism (3) also includes a discharge cylinder (28) and a baffle (29). The discharge cylinder (28) is fixedly connected to the discharge box (6) through a connecting plate (30). The bar material sensor (27) senses whether there is bar material in the material support frame (9). The baffle (29) moves up and down on one side of the material support frame (9) under the drive of the discharge cylinder (28) to control the bar material to fall to the material support frame (9).

5. The automatic loading and unloading device for long bar workpieces on a lathe according to claim 1, characterized in that: The feeding box (6) is provided with a bar stock support plate (31). The bar stock support plate (31) is connected to one side of the feeding box (6) by an adjusting rod (32). The distance between the bar stock support plate (31) and the other side of the feeding box (6) is adjusted by the adjusting rod (32).

6. The automatic loading and unloading device for long bar workpieces on a lathe according to claim 3, characterized in that: The same end of the push mounting plate (26) and the pusher plate (8) is provided with a feeding slope (33) that slopes downward toward the material support frame (9).

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