A lathe receiving buffer device

Abstract

This utility model discloses a lathe receiving buffer device, comprising: a frame located below the lathe's discharge port; a buffer plate fixed to the frame for transferring and conveying bar stock workpieces; a buffer rope located at the edge of the buffer plate; a winding shaft and a crossbar on the frame; one end of the buffer rope being wound around the winding shaft and the other end being fixedly connected to the crossbar; the winding shaft rotating to release the wound buffer rope, thereby buffering the bar stock workpiece by extending the buffer rope; and a motor assembly fixed to the frame for driving the winding shaft to rotate and tighten the buffer rope. The device can counteract the impact force caused by gravity after the bar stock workpiece falls by extending the buffer plate and the buffer rope, preventing secondary vibration caused by the bar stock workpiece bouncing back up after falling. The buffer rope can extend according to the weight of the workpiece, making it suitable for buffering bar stock workpieces of various weights and specifications.

Description

Technical Field

[0001] This utility model relates to a lathe receiving device, and more particularly to a lathe receiving buffer device. Background Technology

[0002] In automated lathe machining, the receiving device is a key component for continuous production. Its function is to promptly and stably transfer the workpiece to the collection system after cutting. After machining, the bar stock is gripped by the robotic jaws. If the jaws release directly above the receiving device, the workpiece will undergo a rigid collision, easily leading to surface damage, dimensional deviations, or even deformation. This also causes impact wear on the receiving mechanism itself, reducing equipment lifespan. Therefore, a buffer device is needed to convert the collision kinetic energy into controllable elastic potential energy or damping dissipation through flexible energy absorption, thereby smoothly decelerating the workpiece and ensuring the reliability of the receiving process and product quality.

[0003] The necessity of a buffer device is mainly reflected in three aspects: First, it protects the precision of the workpiece, preventing scratches or bumps on the surface of the bar stock due to instantaneous impact; second, it reduces the transmission of mechanical vibration to the machine tool body, maintaining the stability of the machining system; and third, it reduces noise and wear, extending the service life of the receiving device. A receiving process lacking buffering not only affects the product qualification rate but may also lead to an increased equipment failure rate and higher maintenance costs due to frequent impact loads.

[0004] Furthermore, existing buffer devices generally lack adaptive adjustment capabilities. Most are passive designs, unable to dynamically adjust damping parameters based on workpiece weight and ejection speed, resulting in insufficient adaptability. This deficiency is particularly pronounced on flexible production lines where processing varieties frequently change, often requiring operators to manually adjust based on experience, impacting efficiency and making it difficult to guarantee optimal results.

[0005] In summary, although the buffer device is crucial for lathe material receiving, the existing technology still has shortcomings in terms of reliability and adaptability. Utility Model Content

[0006] Purpose of the utility model: The purpose of this utility model is to provide a lathe receiving buffer device.

[0007] Technical solution: The lathe receiving buffer device of this utility model includes:

[0008] The frame located below the lathe's discharge port;

[0009] The buffer plate, fixed on the frame, is used for transitioning and conveying bar stock workpieces;

[0010] A buffer rope is located at the edge of the buffer plate. The frame is equipped with a winding shaft and a crossbar. One end of the buffer rope is wound on the winding shaft and the other end is fixedly connected to the crossbar. The winding shaft rotates to release the wound buffer rope, and the buffer rope extends to achieve buffering of the bar workpiece.

[0011] The motor assembly, fixed to the frame, is used to drive the winding shaft to rotate for the winding and unwinding of the buffer rope.

[0012] Furthermore, the frame is equipped with a steering wheel and a steering shaft for keeping the end of the buffer rope horizontal, and the end of the buffer rope is flush with the edge of the buffer plate.

[0013] Furthermore, the frame is provided with a fixed shaft, and the steering wheel is fixedly connected to the fixed shaft; the frame is also provided with a support rod, and the steering shaft and the crossbar are both fixedly installed on the support rod.

[0014] Furthermore, the frame is provided with a fixed shaft, and the steering wheel is rotatably connected to the fixed shaft; the frame is also provided with a support rod, and the steering shaft and the crossbar are both fixedly installed on the support rod.

[0015] Furthermore, a protective rope is provided below the buffer rope, and the two ends of the protective rope are fixedly connected to the steering wheel and the crossbar, respectively.

[0016] Furthermore, a protective rope is provided below the buffer rope, with one end of the protective rope wound around the steering wheel and the winding direction of the protective rope being opposite to the extension direction of the buffer rope. The other end of the protective rope is fixedly connected to the crossbar.

[0017] Furthermore, the frame is also equipped with a rotating shaft, the take-up shaft is fixedly mounted on the rotating shaft, and a transmission wheel is provided on the rotating shaft. The output shaft of the motor assembly is connected to the transmission wheel to achieve synchronous rotation.

[0018] Furthermore, the motor assembly (10) includes a motor and a driver that regulates the magnitude and direction of the motor torque.

[0019] Beneficial effects: Compared with the prior art, the advantages of this utility model are: it can offset the impact force generated by gravity after the bar stock falls by extending the buffer plate and buffer rope, and prevent secondary vibration caused by the bar stock bouncing up after falling. The buffer rope can extend according to the weight of the workpiece, and is suitable for buffering bar stock of various weight specifications. Furthermore, by setting up the protective rope, the extension of the buffer rope and the winding of the protective rope can offset the impact force of the bar stock falling, improve the stability of the bar stock buffer, and effectively prevent the bar stock from falling and being damaged due to excessive weight. Attached Figure Description

[0020] Figure 1This is a frontal perspective view of the three-dimensional structure of this utility model;

[0021] Figure 2 This is a top-view perspective view of the structure of this utility model;

[0022] Figure 3 This is a top-view perspective view of the structure of this utility model after the buffer plate has been removed;

[0023] Figure 4 This is a schematic diagram of the present invention installed on a lathe. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0025] like Figure 4 As shown, the lathe receiving buffer device of this utility model is installed at the lathe discharge port, located below the lathe's robotic arm; as... Figure 1-3 As shown, the receiving buffer device includes a frame 1 and a buffer plate 2 and a buffer rope 3 mounted on the frame 1. The buffer plate 2 is fixedly installed above the frame 1, with the end of the buffer plate 2 near the discharge port higher than the end away from the discharge port, and the buffer rope 3 is arranged parallel to the end of the buffer plate 2 away from the discharge port. A fixed shaft 5 and a rotating shaft 6 are respectively installed on the frame 1. The fixed shaft 5 is fixedly connected to the frame 1 through a flange, and several steering wheels 7 are fixedly installed on the fixed shaft 5. In this scheme, four steering wheels 7 are selected according to the actual working conditions. At the same time, four buffer ropes 3 and four protective ropes 4 are provided to change the movement of the buffer ropes 3. There are four steering wheels 7 and four steering shafts 12 to maintain the horizontal direction of movement, and the steering wheels 7 and steering shafts 12 are kept horizontal. There is one motor assembly 10 and one corresponding transmission wheel 9 and transmission belt 11. The rotating shaft 6 is located below the fixed shaft 5 and is rotatably mounted on the frame 1 via bearings. The winding shaft 8 and the transmission wheel 9 are fixedly mounted on the rotating shaft 6. The transmission wheel 9 rotates synchronously with the output shaft of the motor assembly 10 via the transmission belt 11. One end of the buffer rope 3 changes direction via the steering wheel 7 and is wound around the winding shaft 8; the other end changes direction via the steering shaft 12 and is fixed to the crossbar 13. The steering wheel 7 is located below the buffer plate 2, and the buffer rope 3 is at the same horizontal line as the lower edge of the buffer plate 2. A protective rope 4 is installed below the buffer rope 3, and both ends of the protective rope 4 are fixedly connected to the crossbar 13 and the steering wheel 7, respectively. Several vertical support rods 14 are also installed on the frame 1. The steering shaft 12 is fixedly installed on the side wall of the support rod 14, and a horizontal crossbar 13 is welded on the support rod 14. The ends of the buffer rope 3 and the protective rope 4 are fixed to the crossbar 13 by the mounting plate.

[0026] In practical applications, the motor assembly 10 includes a servo motor and a corresponding servo driver. Common models such as Panasonic MHME402S1 are acceptable. The torque and torque release rate are adjusted according to the maximum weight of the rod-shaped workpiece collected at one time. When the servo motor rotates forward, it drives the rotating shaft 6 and the winding shaft 8 on it to rotate forward through the transmission belt 11 and the transmission wheel 10, so that the buffer rope 3 is wound on the winding shaft 8 and keeps the buffer rope 3 between the steering wheel 7 and the steering shaft 12 horizontal. When the rod-shaped workpiece falls onto the buffer rope 3, the servo driver drives the servo motor to slowly reduce the torque. After the weight of the rod-shaped workpiece exceeds the torque of the servo motor, the buffer rope 3 descends. At this time, the winding shaft 8 reverses and drives the output shaft of the servo motor to reverse.

[0027] The rod-shaped workpiece is taken out of the lathe work area by the robotic arm and sent downward to the top of the buffer plate 2. The robotic arm releases the material, and the rod-shaped workpiece rolls from the buffer plate 2 onto the buffer rope 3. The buffer plate 2 can optionally use elastic fabric to protect the rod-shaped workpiece. When the buffer rope 3 is subjected to the gravity of the rod-shaped workpiece, the servo driver drives the servo motor to slowly reduce the torque. After the weight of the rod-shaped workpiece exceeds the torque of the servo motor, the buffer rope 3 slowly droops, driving the winding shaft 8 to reverse and release the buffer rope 3 wound on it. The descent height will vary depending on the weight of the workpiece. If the workpiece continues to increase in weight, when the buffer rope 3 descends to be level with the protective rope 4, the workpiece will come into contact with the protective rope 4, preventing it from falling further and avoiding the heavy workpiece from falling due to excessive impact. After the rod-shaped workpiece is removed, the torque of the motor assembly 10 gradually increases, causing it to rotate in the forward direction. This drives the transmission wheel 9 to rotate, which in turn drives the winding shaft 8 to rotate and tighten the buffer rope 3 through the rotating shaft 6. When the buffer rope 3 is in a horizontal state, the motor assembly 10 maintains a constant torque.

[0028] In another embodiment, if the rod-shaped workpiece is heavy, the steering wheel 7 is rotatably mounted on the fixed shaft 5 via bearings. One end of the protective rope 4 is wound around the steering wheel 7, and the winding direction of the protective rope 4 is opposite to the sliding direction of the buffer rope 3. When the buffer rope 3 is subjected to the gravity of the rod-shaped workpiece, the buffer rope 3 droops. The edge of the buffer rope 3 is set in a serrated shape to increase the friction with the steering wheel 7. The descent of the buffer rope 3 drives the steering wheel 7 to rotate. The rotation of the steering wheel 7 winds up the protective rope 4, making it gradually taut. At the same time, the drooping of the buffer rope 3 drives the winding shaft 8 to reverse and release the buffer rope 3 wound on it. This allows the buffer rope 3 to fall onto the buffer rope 3 when the rod-shaped workpiece falls onto the buffer rope 3. The spacing decreases rapidly until the protective rope 4 contacts the rod-shaped workpiece; the extension of the buffer rope 3 and the winding process of the protective rope 4 greatly improve the reliability of the receiving buffer device, and the extension length of the buffer rope 3 and the winding length of the protective rope 4 are adaptively adjusted according to the different weight specifications of the rod material, without the need for manual length adjustment; after the rod material is removed, the torque of the motor assembly 10 gradually increases and rotates in the forward direction, driving the transmission wheel 9 to rotate, which in turn drives the winding shaft 8 to rotate through the rotating shaft 6 to tighten the buffer rope 3, so that the motor maintains a constant torque when the buffer rope 3 is in a horizontal state. When the buffer rope 3 is tightened, it drives the steering wheel 7 to rotate. At this time, the protective rope 4 is unwound from the steering wheel and the protective rope 4 returns to its original position.

Claims

1. A lathe receiving buffer device, characterized in that, include: The frame (1) is located below the lathe's discharge port; The buffer plate (2) is fixed on the frame (1) and is used for transitioning and conveying bar stock workpieces; The buffer rope (3) is located at the edge of the buffer plate (2). The frame (1) is provided with a winding shaft (8) and a crossbar (13). One end of the buffer rope (3) is wound on the winding shaft (8) and the other end is fixedly connected to the crossbar (13). The winding shaft (8) rotates to release the wound buffer rope (3). The buffer of the bar workpiece is achieved by the extension of the buffer rope (3). The motor assembly (10) is fixed on the frame (1) and is used to drive the winding shaft (8) to rotate for winding and unwinding the buffer rope (3).

2. The lathe receiving buffer device according to claim 1, characterized in that, The frame (1) is provided with a steering wheel (7) and a steering shaft (12) for keeping the end of the buffer rope (3) horizontal, and the end of the buffer rope (3) is flush with the edge of the buffer plate (2).

3. The lathe receiving buffer device according to claim 2, characterized in that, The frame (1) is provided with a fixed shaft (5), and the steering wheel (7) is fixedly connected to the fixed shaft (5); the frame (1) is also provided with a support rod (14), and the steering shaft (12) and the crossbar (13) are both fixedly installed on the support rod (14).

4. The lathe receiving buffer device according to claim 2, characterized in that, The frame (1) is provided with a fixed shaft (5), and the steering wheel (7) is rotatably connected to the fixed shaft (5); the frame (1) is also provided with a support rod (14), and the steering shaft (12) and the crossbar (13) are both fixedly installed on the support rod (14).

5. The lathe receiving buffer device according to claim 2, characterized in that, Below the buffer rope (3) is a protective rope (4), one end of which is connected to the steering wheel (7), and the other end of which is fixedly connected to the crossbar (13).

6. The lathe receiving buffer device according to claim 3, characterized in that, Below the buffer rope (3) is a protective rope (4), and the two ends of the protective rope (4) are fixedly connected to the steering wheel (7) and the crossbar (13) respectively.

7. The lathe receiving buffer device according to claim 4, characterized in that, Below the buffer rope (3), there is also a protective rope (4), and one end of the protective rope (4) is wound around the steering wheel (7), and the winding direction of the protective rope (4) is opposite to the extension direction of the buffer rope (3). The other end of the protective rope (4) is fixedly connected to the crossbar (13).

8. The lathe receiving buffer device according to claim 1, characterized in that, The frame (1) is also provided with a rotating shaft (6), and the winding shaft (8) is fixedly installed on the rotating shaft (6). At the same time, the rotating shaft (6) is provided with a transmission wheel (9), and the output shaft of the motor assembly (10) is connected to the transmission wheel (9) to achieve rotation.

9. The lathe receiving buffer device according to claim 1, characterized in that, The motor assembly (10) includes a motor and a driver that controls the magnitude and direction of the motor torque.

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