Workpiece receiving device for a numerically controlled machine tool

Abstract

The utility model discloses a workpiece receiving device for numerical control machine tool, including the head, the head side fixedly has the fixed base, the fixed base both sides outer wall respectively fixedly has the speed reducer and the apron, and the speed reducer one end housing fixedly has the servo motor, and the servo motor output shaft and the speed reducer input shaft between fixed connection, the speed reducer output shaft is fixed with the swing arm axle, and the swing arm axle is away from the one end of speed reducer and is connected with the fixed plate through chain drive subassembly transmission, and the fixed plate is installed with the receiving box through the connecting piece.

Description

Technical Field

[0001] This utility model relates to the field of workpiece receiving technology, and in particular to a workpiece receiving device for CNC machine tools. Background Technology

[0002] In the field of CNC machining, the efficiency and accuracy of the receiving, transfer and positioning of workpieces after cutting, milling and other processes directly affect the cycle time of the production line and the quality of products. Traditional workpiece receiving devices generally use cylinder drive or ordinary asynchronous motor direct drive. However, when these traditional solutions meet the high requirements of modern intelligent manufacturing, their inherent drawbacks are becoming increasingly prominent.

[0003] Specifically, the cylinder-driven method relies on compressed air, which has inherent shortcomings such as a simple motion trajectory and difficulty in precisely adjusting speed and control accuracy. Its motion process has a large impact, making it difficult to achieve smooth speed change. When high-precision positioning is required, it is prone to overshoot or positioning deviation due to inertia, which cannot meet the requirements of scenarios with strict position accuracy. The cylinder's thrust is limited, and its load capacity is often insufficient when dealing with heavy workpieces, limiting its application range. On the other hand, the direct drive scheme using ordinary motors with gears, belts, and other structures can provide more complex motion trajectories than cylinders, but its starting torque is usually low. When receiving heavy workpieces or requiring complex motion trajectories, it is prone to lag and inaccurate positioning. Moreover, the transmission structure is cumbersome and the maintenance cost is high.

[0004] With the rapid development of industrial automation technology towards intelligence and flexibility, the types and weights of workpieces are becoming more diverse. This places higher and more stringent requirements on the workpiece receiving devices that are used in conjunction with these devices. They not only need to have a strong load capacity to handle heavy workpieces, but also need to have extremely high motion accuracy and fast response speed so that they can be integrated into the entire CNC system and execute precise, reliable and efficient actions according to different production instructions. Therefore, the industry urgently needs a new type of workpiece receiving device that is compact in structure, efficient in transmission and precise in control, in order to solve the bottlenecks of traditional solutions in terms of accuracy, torque and response speed. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a workpiece receiving device for CNC machine tools.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A workpiece receiving device for a CNC machine tool includes a machine head, a fixed base fixed to the side of the machine head, a reducer and a cover plate fixed to the outer walls of the two sides of the fixed base, a servo motor fixed to one end of the housing of the reducer, a fixed connection between the output shaft of the servo motor and the input shaft of the reducer, a rocker arm shaft fixed to the output shaft of the reducer, a fixed plate being driven to the end of the rocker arm shaft away from the reducer via a chain drive assembly, and a receiving box being mounted on the fixed plate via a connector.

[0008] As a further embodiment of this utility model: the chain drive assembly includes an installation component and a transmission component. The installation component includes an installation shell, a bushing, and a fixing cover. The bushing is fixed to one side of the outer wall of the cover plate, the installation shell is fixed to one end of the bushing, and the fixing cover is fixed to one side of the outer wall of the installation shell.

[0009] As a further embodiment of this utility model: the transmission component includes a rotating shaft, a chain and a sprocket, the rotating shaft is movably connected to the inner wall of one side of the mounting housing, and one end of the rotating shaft is fixedly connected to the fixing plate.

[0010] As a further embodiment of this utility model: two sprockets are respectively fixed to the outer circumference of the rocker arm shaft and the outer circumference of the rotating shaft by pins, and the chain drive is connected between the two sprockets.

[0011] As a further embodiment of this utility model: the connector includes a connecting block, a positioning plate and a positioning groove. The positioning groove is formed on the surface of the fixing plate, and the connecting block is welded to the side of the receiving box. The positioning plate is integrally formed on the bottom of the connecting block, and the positioning plate and the positioning groove are positioned by plugging in.

[0012] As a further embodiment of this utility model: a vertical plate is welded to the top outer wall of the fixing plate, a threaded post is threadedly connected to the surface of the vertical plate, a connecting plate is fixed to one end of the threaded post, a plug is integrally formed on the surface of the connecting plate, a slot is provided on the side of the connecting block, and the slot and the plug are connected by a plug-in method.

[0013] As a further improvement of this utility model, a knob is fixed to the other end of the threaded column.

[0014] As a further improvement of this utility model, a side plate is welded to the top outer wall of the fixing plate.

[0015] Compared with the prior art, the present invention provides a workpiece receiving device for CNC machine tools, which has the following advantages:

[0016] 1. The use of a servo motor and reducer as the power source provides precisely controlled speed and amplified stable torque. The transmission is then carried out through sprockets and chains, ensuring the accuracy and reliability of power transmission. This makes the receiving box move smoothly and position accurately, meeting the high-precision operation requirements of CNC machine tools.

[0017] 2. The receiver box is quickly initially positioned by inserting the positioning plate into the positioning slot, and then the plug is inserted into the slot by rotating the knob to complete the locking. This connector design enables tool-free quick installation and disassembly of the receiver box, which greatly facilitates replacement or maintenance work and improves the efficiency and convenience of the equipment.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a workpiece receiving device for a CNC machine tool proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of a workpiece receiving device for CNC machine tools proposed in this utility model;

[0021] Figure 3 This is an exploded structural diagram of the main body of a workpiece receiving device for CNC machine tools proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the overall structure of the receiving component of a workpiece receiving device for CNC machine tools proposed in this utility model;

[0023] Figure 5 This is an exploded view of the receiving component of a workpiece receiving device for CNC machine tools proposed in this utility model;

[0024] Figure 6 This is a magnified view of point A.

[0025] In the diagram: 1. Machine head; 2. Reducer; 3. Mounting base; 4. Cover plate; 5. Servo motor; 6. Mounting housing; 7. Bushing; 8. Receiver box; 9. Mounting cover; 10. Rotating shaft; 11. Chain; 12. Sprocket; 13. Rocker arm shaft; 14. Connecting block; 15. Fixing plate; 16. Knob; 17. Positioning plate; 18. Slot; 19. Positioning groove; 20. Side plate; 21. Plug; 22. Connecting plate; 23. Vertical plate; 24. Threaded post. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] A workpiece receiving device for a CNC machine tool, such as Figures 1 to 6As shown, the device includes a machine head 1. A mounting base 3 is fixed to the side of the machine head 1 by bolts. A reducer 2 and a cover plate 4 are fixed to the outer walls of both sides of the mounting base 3 by bolts, respectively. A servo motor 5 is fixed to one end of the housing of the reducer 2 by bolts. The output shaft of the servo motor 5 and the input shaft of the reducer 2 are fixedly connected. A rocker arm shaft 13 is fixed to the output shaft of the reducer 2. A mounting plate 15 is connected to the end of the rocker arm shaft 13 away from the reducer 2 through a chain drive assembly. A receiving box 8 is installed on the mounting plate 15 through a connector.

[0028] During operation, after the servo motor 5 is started, the output shaft of the servo motor 5 outputs power, which is then amplified by the reducer 2 and transmitted to the rocker arm shaft 13, causing the rocker arm shaft 13 to rotate. The reducer 2 is a power transmission device composed of gears, bearings, housing and accessories. Its core structure achieves speed reduction and torque increase through a precision meshing gear system. The reducer 2 is a higher-level concept. The internal structure and working principle of the reducer 2 are existing technologies and will not be described in detail here.

[0029] The receiving box 8 can receive workpieces. The rocker arm shaft 13 transmits power to the fixed plate 15 through the chain drive assembly, so that the receiving box 8, which is installed through the connector, completes rotation, positioning and other actions according to the preset control instructions of the servo motor 5, thereby achieving accurate receiving of workpieces. The controller (not shown) sends instructions to the servo motor 5 to accurately control its speed, direction and stop position to meet the motion requirements of workpiece receiving under different working conditions.

[0030] The chain drive assembly includes a mounting component and a transmission component. The mounting component includes a mounting shell 6, a bushing 7, and a fixing cover 9. The bushing 7 is fixed to the outer wall of one side of the cover plate 4 by bolts. The mounting shell 6 is fixed to one end of the bushing 7 by screws. The fixing cover 9 is fixed to the outer wall of one side of the mounting shell 6 by screws. The transmission component includes a rotating shaft 10, a chain 11, and sprockets 12. The rotating shaft 10 is rotatably connected to the inner wall of one side of the mounting shell 6, and one end of the rotating shaft 10 is fixedly connected to the fixing plate 15. The two sprockets 12 are respectively fixed to the outer circumference of the rocker arm shaft 13 and the outer circumference of the rotating shaft 10 by pins, and the chain 11 is driven between the two sprockets 12.

[0031] The rocker arm shaft 13 indirectly drives the rotating shaft 10 to rotate by the transmission of the chain 11 and sprocket 12. During the rotation, the rotating shaft 10 drives the receiving box 8 and the fixed plate 15 to rotate.

[0032] The connector includes a connecting block 14, a positioning plate 17, and a positioning groove 19. The positioning groove 19 is formed on the surface of the fixing plate 15, and the connecting block 14 is welded to the side of the receiving box 8. The positioning plate 17 is integrally formed on the bottom of the connecting block 14, and the positioning plate 17 and the positioning groove 19 are positioned by plugging in. The top outer wall of the fixing plate 15 is welded with a side plate 20 and a vertical plate 23, respectively. The surface of the vertical plate 23 is threaded with a threaded post 24. A knob 16 and a connecting plate 22 are fixed at both ends of the threaded post 24, respectively. The surface of the connecting plate 22 is integrally formed with a plug 21. The side of the connecting block 14 is provided with a slot 18, and the slot 18 and the plug 21 are connected by plugging in.

[0033] When it is necessary to connect the receiving box 8 and the fixing plate 15, first insert the positioning plate 17 and the positioning groove 19 to achieve the initial positioning between the connecting block 14 and the fixing plate 15. At this time, the slot 18 and the plug 21 are aligned with each other. After alignment, the operator rotates the knob 16 and the threaded post 24 to gradually insert the plug 21 into the slot 18, and uses the plug 21 and the slot 18 to fix the connecting block 14 and the fixing plate 15.

[0034] Working principle: After the servo motor 5 starts, its output shaft outputs power, which is increased in torque and reduced in speed by the reducer 2, and then drives the rocker arm shaft 13 to rotate. The rocker arm shaft 13 transmits power to the fixed plate 15 through the chain drive assembly consisting of the sprocket 12, chain 11 and the sprocket 12 on the rotating shaft 10. The fixed plate 15 achieves initial positioning connection with the receiving box 8 by inserting the positioning plate 17 into the positioning groove 19, and drives the threaded column 24 by rotating the knob 16 to insert the plug 21 into the slot 18 of the connecting block 14 to complete the fastening, so that the receiving box 8 performs rotation or positioning actions according to the control command, and achieves accurate reception of the workpiece.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A workpiece receiving device for a numerically controlled machine tool, comprising a head (1), characterized in that, The machine head (1) is fixed with a fixed seat (3) on the side. The outer walls of the fixed seat (3) are respectively fixed with a reducer (2) and a cover plate (4). A servo motor (5) is fixed on one end of the housing of the reducer (2). The output shaft of the servo motor (5) and the input shaft of the reducer (2) are fixedly connected. The output shaft of the reducer (2) is fixed with a rocker arm shaft (13). The end of the rocker arm shaft (13) away from the reducer (2) is connected to a fixed plate (15) through a chain drive assembly. The fixed plate (15) is equipped with a receiving box (8) through a connector.

2. A workpiece receiving device for a numerically controlled machine tool according to claim 1, characterized in that The chain drive assembly includes an installation component and a transmission component. The installation component includes an installation shell (6), a bushing (7), and a fixing cover (9). The bushing (7) is fixed to the outer wall of one side of the cover plate (4). The installation shell (6) is fixed to one end of the bushing (7), and the fixing cover (9) is fixed to the outer wall of one side of the installation shell (6).

3. A workpiece receiving device for a numerically controlled machine tool according to claim 2, wherein The transmission component includes a rotating shaft (10), a chain (11) and a sprocket (12). The rotating shaft (10) is movably connected to the inner wall of one side of the mounting housing (6), and one end of the rotating shaft (10) is fixedly connected to the fixing plate (15).

4. A workpiece receiving device for a numerically controlled machine tool according to claim 3, wherein Two sprockets (12) are fixed to the outer circumference of the rocker arm shaft (13) and the outer circumference of the rotating shaft (10) respectively by pins, and the chain (11) is connected between the two sprockets (12).

5. A workpiece receiving device for a numerically controlled machine tool according to claim 1, wherein The connector includes a connecting block (14), a positioning plate (17), and a positioning groove (19). The positioning groove (19) is formed on the surface of the fixing plate (15), and the connecting block (14) is welded to the side of the receiving box (8). The positioning plate (17) is integrally formed on the bottom of the connecting block (14), and the positioning plate (17) and the positioning groove (19) are positioned by plugging.

6. A workpiece receiving device for a numerically controlled machine tool according to claim 5, wherein The top outer wall of the fixed plate (15) is welded with a vertical plate (23), and a threaded post (24) is threaded on the surface of the vertical plate (23). A connecting plate (22) is fixed at one end of the threaded post (24). A plug (21) is integrally formed on the surface of the connecting plate (22). A slot (18) is opened on the side of the connecting block (14). The slot (18) and the plug (21) are connected by a plug-in method.

7. A workpiece receiving device for a numerically controlled machine tool according to claim 6, wherein A knob (16) is fixed to the other end of the threaded post (24).

8. A workpiece receiving device for a numerically controlled machine tool according to claim 7, wherein The top outer wall of the fixing plate (15) is welded with a side plate (20).

Images