Workpiece feeding and discharging device of numerical control machine tool

Abstract

The utility model relates to the technical field of numerical control machine tool workpiece feeding and discharging, and discloses a numerical control machine tool workpiece feeding and discharging device which comprises a supporting frame, a lifting motor, a bearing device and a pushing device. A bearing device is arranged in the supporting frame and correspondingly connected with the interior of the supporting frame in a sliding fit mode, a pushing device is arranged at the top of the bearing device and fixedly connected with the top of the bearing device through an adaptive screw, and a bottom output shaft of the lifting motor is correspondingly connected with the bearing device in a threaded fit mode. The loading and unloading device is internally provided with the bearing device and the pushing device which cooperate with each other, so that the loading and unloading speed of large workpieces can be greatly improved, manual carrying is reduced, and the safety of the whole operation process is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool workpiece loading and unloading technology, specifically a CNC machine tool workpiece loading and unloading device. Background Technology

[0002] Chinese utility model patent CN220944317U discloses a workpiece loading and unloading device for CNC machine tools, comprising: a support assembly, a conveying assembly, and a drive assembly. The support assembly includes a stable support and a lifting support. The stable support has a receiving space for a material transport trolley to enter and exit. The lifting support is mounted on the stable support and located within the receiving space. The conveying assembly includes a lifting component that slides with the lifting support and a carrying component mounted on the lifting component for carrying the workpiece. The drive assembly drives the lifting component to move up and down along the lifting support and fixes the lifting component at any position on the lifting support. With this solution, during loading and unloading, the worker can push the material transport trolley into the receiving space, the drive assembly can drive the lifting component to move up and down along the lifting support, and the carrying component can remove the workpiece from or place it onto the material transport trolley. This solution is more labor-saving and efficient, improves the processing efficiency of the machine tool, and enhances safety.

[0003] Regarding the aforementioned technologies, the inventors believe that the following defects exist: Firstly, the aforementioned devices only have lifting functions. When transporting large workpieces to be processed from the trolley to the carrier of the aforementioned devices, or when transporting large workpieces that have already been processed from the machine tool to the carrier, the operators will have to perform the transportation work for this step. Therefore, the labor-saving and efficiency performance of the aforementioned solutions needs to be improved. For this reason, we propose a CNC machine tool workpiece loading and unloading device. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a CNC machine tool workpiece loading and unloading device, which solves the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a CNC machine tool workpiece loading and unloading device, comprising a support frame, a lifting motor, a bearing device, and a pushing device. The lifting motor is provided on the top of the support frame and is fixedly connected to the top of the support frame by an adapter bolt. The bearing device is provided inside the support frame and is slidably connected to the inside of the support frame. The pushing device is provided on the top of the bearing device and is fixedly connected to the top of the bearing device by an adapter screw. The bottom output shaft of the lifting motor is threadedly connected to the bearing device.

[0008] Preferably, the support frame has a rectangular opening inside, and guide rods are provided on two opposite sides of the rectangular opening in an axisymmetrical manner. The side wall of the support frame has two axisymmetrically distributed sliding grooves. The guide rods and sliding grooves are slidably connected to the bearing device. A pusher is welded to the side of the support frame away from the sliding grooves. The top of the support frame has a connecting plate. The four corners of the connecting plate have connecting holes that are fixedly connected to the lifting motor by adapter bolts. The center of the end face of the connecting plate has a mating hole that is mated to the output shaft of the lifting motor.

[0009] Preferably, the bearing device consists of four parts: a bearing plate, rolling rollers, irregularly shaped limiting pins, and threaded bushings. The main body of the bearing device is the bearing plate. Inside the bearing plate, there is a set of rolling rollers that are evenly distributed. On the side of the bearing plate, there is a set of irregularly shaped limiting pins that are evenly distributed. At the center of the end face of the bearing plate, there is a threaded bushing that is threadedly connected to the output shaft of the lifting motor.

[0010] Preferably, the top two opposite sides of the bearing plate are provided with two axially symmetrically distributed sliding grooves, which are perpendicular to the rolling roller. The top side of the bearing plate is provided with a set of equidistant limiting holes, which are axially parallel to the rolling roller and are connected to the irregular limiting pins. The two opposite sidewalls of the bearing plate are provided with two axially symmetrically distributed guide sliding holes, which are connected to the guide rods in a sliding fit. The guide sliding holes and the limiting holes are respectively located at the two ends of the two sliding grooves.

[0011] Preferably, the side wall of the bearing plate is provided with a reinforcing rib at the bottom of the second slide groove, and a slider is provided at the bottom of the vertical side wall of the reinforcing rib, which is slidably connected to the inside of the first slide groove.

[0012] Preferably, the pushing device consists of two parts: a push plate and two axially symmetrically distributed electric push rods. The back of the push plate is welded to the output push rod shaft ends of the two electric push rods, and the bottom of the electric push rods is fixedly connected to the top of the bearing plate by adapter screws. The push plate has a rubber layer on the side away from the electric push rods, and the bottom of the push plate has two axially symmetrically distributed sliders, which are slidably connected to the inside of the slide groove.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a workpiece loading and unloading device for CNC machine tools, which has the following beneficial effects:

[0015] 1. This CNC machine tool workpiece loading and unloading device is highly efficient and labor-saving, reducing labor intensity. The device controls the lifting of the bearing device via a lifting motor and pushes the workpiece using an electric push rod, greatly reducing the manual handling of large workpieces. Operators only need to push the workpiece onto the bearing plate. The pushing process, combined with the bottom rolling roller group, significantly reduces the applied force, achieving true labor saving. Subsequent lifting and pushing processes can be completed automatically by the device, avoiding the physical exertion and potential injury risks associated with manual handling. This makes the loading and unloading process more labor-saving and convenient, significantly improving work efficiency and effectively reducing the labor intensity of operators.

[0016] 2. This CNC machine tool workpiece loading and unloading device features safety protection and ensures workpiece quality. The device is designed with full consideration for workpiece protection. The rubber layer on the push plate effectively buffers the force between the push plate and the workpiece when pushing it, preventing scratches, wear, and other damage to the workpiece side due to collision, thus ensuring the surface quality of the workpiece. At the same time, the irregularly shaped limit pins on the bearing plate cooperate with the limit holes to limit the workpiece, ensuring that the workpiece will not be displaced during lifting and lowering, avoiding processing errors or safety accidents caused by workpiece slippage, and comprehensively ensuring the processing quality of the workpiece and the safety of the processing process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the CNC machine tool workpiece loading and unloading device of this utility model;

[0018] Figure 2 This is a cross-sectional schematic diagram of the CNC machine tool workpiece loading and unloading device of this utility model;

[0019] Figure 3 This is a schematic diagram of the support frame of this utility model;

[0020] Figure 4 This is a schematic diagram of the bearing device of this utility model;

[0021] Figure 5 This is a schematic diagram of the driving device of this utility model.

[0022] In the diagram: 1. Support frame; 2. Lifting motor; 3. Bearing device; 4. Pushing device; 5. Guide rod; 6. Slide groove one; 7. Push handle; 8. Connecting plate; 9. Mating hole; 10. Bearing plate; 11. Rolling roller; 12. Irregularly shaped limit pin; 13. Threaded bushing; 14. Limiting hole; 15. Slide groove two; 16. Reinforcing rib; 17. Slider one; 18. Guide slide hole; 19. Electric push rod; 20. Push plate; 21. Rubber layer; 22. Slider two. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 A CNC machine tool workpiece loading and unloading device includes a support frame 1, a lifting motor 2, a bearing device 3, and a pushing device 4. The lifting motor 2 is located on the top of the support frame 1 and is fixedly connected to the top of the support frame 1 by adapter bolts. The bearing device 3 is located inside the support frame 1 and is slidably connected to the inside of the support frame 1. The pushing device 4 is located on the top of the bearing device 3 and is fixedly connected to the top of the bearing device 3 by adapter screws. The output shaft at the bottom of the lifting motor 2 is threadedly connected to the bearing device 3. The lifting motor 2 controls the bearing device 3 to be lowered to its lowest position, and a large workpiece to be processed is pushed onto the bearing device 3 by a trolley. Then, the lifting motor 2 drives the bearing device 3 to rise to be parallel with the machine tool processing table. The pushing device 4 is then activated to push the large workpiece to be processed into the machine tool. The operator can then adjust the position and begin processing. This significantly reduces the manual handling of large workpieces, saving effort and providing convenience, while effectively ensuring the safety of the operator throughout the entire operation process.

[0025] Furthermore, a rectangular opening is provided inside the support frame 1. Guide rods 5 are provided on two opposite sides of the rectangular opening in an axisymmetric manner. Two axially symmetrical sliding grooves 6 are provided on the side wall of the support frame 1. The guide rods 5 and sliding grooves 6 are slidably connected to the bearing device 3. A pusher 7 is welded to the side of the support frame 1 away from the sliding grooves 6. A connecting plate 8 is provided on the top of the support frame 1. The four corners of the connecting plate 8 are provided with connecting holes, which are fixedly connected to the lifting motor 2 by matching bolts. A mating hole 9 is provided at the center of the end face of the connecting plate 8. The mating hole 9 is connected to the output shaft of the lifting motor 2. The guide rods 5 and sliding grooves 6 of the support frame 1 effectively ensure the stability of the lifting of the bearing device 3 and have high safety performance. The pusher 7 facilitates the operator to adjust the position.

[0026] Furthermore, the bearing device 3 consists of four parts: a bearing plate 10, rolling rollers 11, irregularly shaped limiting pins 12, and threaded bushings 13. The main body of the bearing device 3 is the bearing plate 10. Inside the bearing plate 10, there is a set of rolling rollers 11 that are evenly distributed. On the side of the bearing plate 10, there is a set of irregularly shaped limiting pins 12 that are evenly distributed. The center of the end face of the bearing plate 10 is provided with a threaded bushing 13. The threaded bushing 13 is threadedly connected to the output shaft of the lifting motor 2. The rolling rollers 11 of the bearing device 3, together with the pushing device 4, facilitate the pushing of large workpieces, reduce manual handling operations, and greatly improve the labor-saving effect. The irregularly shaped limiting pins 12 limit the rolling direction of large workpieces to ensure the safety of the lifting process.

[0027] Furthermore, the top two opposite sides of the support plate 10 are provided with two axially symmetrically distributed sliding grooves 15, and the sliding grooves 15 are perpendicular to the rolling roller 11. The top side of the support plate 10 is provided with a set of equidistantly distributed limiting holes 14, the set of limiting holes 14 is axially parallel to the rolling roller 11, and the limiting holes 14 are corresponding to the irregular limiting pins 12 for engagement. The two opposite side walls of the support plate 10 are provided with two axially symmetrically distributed guide sliding holes 18, the guide sliding holes 18 are corresponding to the guide rod 5 for sliding engagement, and the guide sliding holes 18 and the limiting holes 14 are respectively located at the two shaft ends of the sliding grooves 15.

[0028] Furthermore, the side wall of the bearing plate 10 is provided with a reinforcing rib 16 at the bottom of the slide groove 15, and the bottom of the vertical side wall of the reinforcing rib 16 is provided with a slider 17. The slider 17 is connected to the inside of the slide groove 6 in a sliding fit. The reinforcing rib 16 can greatly improve the bearing capacity of the bearing device 3 and ensure the safety of the lifting process.

[0029] Furthermore, the pushing device 4 consists of two parts: a push plate 20 and two axially symmetrically distributed electric push rods 19. The back of the push plate 20 is welded to the output push rod shaft ends of the two electric push rods 19, and the bottom of the electric push rods 19 is fixedly connected to the top of the bearing plate 10 by adapter screws. The push plate 20 has a rubber layer 21 on the side away from the electric push rods 19, and the bottom of the push plate 20 has two axially symmetrically distributed sliders 22. The sliders 22 are slidably connected to the inside of the slide groove 15. The rubber layer 21 can protect the side of the workpiece, and the sliding connection between the sliders 22 and the inside of the slide groove 15 ensures that the pushing device 4 pushes the workpiece smoothly and safely.

[0030] Structural Description:

[0031] Support frame 1: Support frame 1 is the main support structure of the loading and unloading device. The top is used to fix the lifting motor 2. The inside has a rectangular opening and is equipped with guide rod 5 and slide groove 6 to provide lifting guidance and support for the bearing device 3.

[0032] Lifting motor 2: The lifting motor 2 is fixed to the top of the support frame 1 by the adapter bolts. Its bottom output shaft is threaded with the bearing device 3 and is the core power component that drives the bearing device 3 to achieve lifting movement.

[0033] The bearing device 3 consists of a bearing plate, a rolling roller 11, etc., located inside the support frame 1 and slidingly engaged with it. A pushing device 4 is installed on the top, which is used to bear and transport large workpieces.

[0034] Pushing device 4: The pushing device 4 consists of an electric push rod 19 and a push plate 20, which are installed on the top of the bearing device 3 by adapter screws. The electric push rod 19 drives the push plate 20 to push the workpiece into the machine tool.

[0035] Guide rod 5: The guide rod 5 is symmetrically arranged on the opposite sides of the rectangular opening inside the support frame 1, and cooperates with the guide sliding hole 18 of the bearing device 3 to ensure the stability of the lifting process of the bearing device 3;

[0036] Slide 6: Slide 6 is axially symmetrically distributed on the side wall of the support frame 1, and slides in cooperation with the slider 17 at the bottom of the reinforcing rib 16 on the side wall of the bearing device 3, to assist the bearing device 3 in stable lifting and lowering.

[0037] Push handle 7: Push handle 7 is welded to the side of support frame 1 away from slide 6, which facilitates the operator to adjust and move the position of the loading and unloading device;

[0038] Connecting plate 8: The connecting plate 8 is located on the top of the support frame 1. The four corners are fixed to the lifting motor 2 by the adapter bolts, and the mating hole 9 at the center of the end face is connected to the output shaft of the lifting motor 2.

[0039] Mating hole 9: Mating hole 9 is opened at the center of the end face of the connecting plate 8, and precisely matches the output shaft of the lifting motor 2 to ensure the stability and accuracy of power transmission;

[0040] Bearing plate 10: The bearing plate 10 is the main body of the bearing device 3. It is equipped with a rolling roller 11 inside, a sliding groove 15 and a limiting hole 14 on the top, and a guide sliding hole 18 and a special-shaped limiting pin 12 on the side.

[0041] Roller 11: The rollers 11 are evenly distributed inside the bearing plate 10 and cooperate with the pushing device 4 to reduce the friction when pushing the workpiece and facilitate the movement of large workpieces.

[0042] Irregularly shaped limiting pins 12: Irregularly shaped limiting pins 12 are equidistantly arranged on the side of the bearing plate 10, and cooperate with the limiting holes 14 to limit the rolling direction of the workpiece and ensure safety during the lifting process.

[0043] Threaded bushing 13: The threaded bushing 13 is located at the center of the end face of the bearing plate 10 and is threadedly engaged with the output shaft of the lifting motor 2 to realize the lifting transmission of the bearing device 3;

[0044] Limiting holes 14: Limiting holes 14 are evenly distributed on the top side of the support plate 10, and cooperate with the irregular limiting pins 12 to limit the range of movement of the workpiece on the support plate 10.

[0045] Slide groove 2 15: Slide groove 2 15 is symmetrically opened on opposite sides of the top of the support plate 10, and cooperates with slider 22 of the pushing device 4 to provide guidance for the sliding of the push plate 20;

[0046] Reinforcing rib 16: The reinforcing rib 16 is provided at the bottom of the corresponding slide groove 15 on the side wall of the bearing plate 10. The slider 17 at its bottom cooperates with the slide groove 6 to enhance the bearing capacity of the bearing device 3.

[0047] Slider 17: Slider 17 is located at the bottom of the vertical side wall of the reinforcing rib 16 and slides in conjunction with the slide groove 6 of the support frame 1 to assist the bearing device 3 in stable lifting and lowering;

[0048] Guide sliding holes 18: Guide sliding holes 18 are symmetrically distributed on the two opposite side walls of the bearing plate 10, and cooperate with the guide rod 5 of the support frame 1 to ensure accurate guidance when the bearing device 3 is raised and lowered;

[0049] Electric push rod 19: The electric push rod 19 is symmetrically distributed and its bottom is fixed to the top of the support plate 10 by an adapter screw. It is the power source for driving the push plate 20 to move.

[0050] Push plate 20: The back of push plate 20 is welded to the output push rod shaft end of electric push rod 19, and a slider 22 is provided at the bottom. A rubber layer 21 is provided on the side away from electric push rod 19 for pushing workpieces.

[0051] Rubber layer 21: The rubber layer 21 is located on the side of the push plate 20 away from the electric push rod 19. It plays a buffering role when pushing the workpiece to prevent the side of the workpiece from being damaged by collision.

[0052] Slider 22: Slider 22 is symmetrically distributed at the bottom of push plate 20 and slides in cooperation with the slide groove 15 of bearing plate 10 to ensure the smoothness of push plate 20 pushing workpiece.

[0053] Working Principle: The CNC machine tool workpiece loading and unloading device is correctly installed according to the diagram. When using this device, firstly, the lifting motor 2 drives the bearing device 3 to its lowest position. During descent, the guide sliding hole 18 on the side wall of the bearing plate 10 in the bearing device 3 slides along the guide rod 5 inside the support frame 1. Simultaneously, the slider 17 at the bottom of the reinforcing rib 16 on the side wall of the bearing plate 10 slides along the sliding groove 6 on the side wall of the support frame 1. This double-guided structure ensures the smooth descent of the bearing plate 10. When the bearing plate 10 reaches its lowest position, a large workpiece to be processed is pushed onto the bearing plate 10. The equally spaced rolling rollers 11 on the bearing plate 10 reduce friction when the workpiece is placed. Simultaneously, the irregularly shaped limiting pin 12 on the side inserts into the limiting hole 14 to limit the rolling direction of the workpiece, preventing it from sliding on the bearing plate 10. Subsequently, the lifting motor 2 starts, and its output shaft, through threaded engagement with the threaded bushing 13 at the center of the end face of the bearing plate 10, drives the bearing plate... As the bearing plate 10 rises, the guide slide hole 18 and guide rod 5, and the slider 17 and slide groove 6 continuously cooperate to ensure that the bearing plate 10 rises smoothly to a position parallel to the machine tool processing table. At this time, the pushing device 4 starts to work. Two axially symmetrical electric push rods 19 drive the push plate 20 to slide along the slide groove 15 on the top of the bearing plate 10. The slider 22 at the bottom of the push plate 20 cooperates with the slide groove 15 to ensure the stability of the push plate 20 when pushing the workpiece. The rubber layer 21 on the side of the push plate 20 away from the electric push rod 19 contacts the side of the workpiece to protect the workpiece during the pushing process and avoid damage to the workpiece surface. The workpiece is pushed into the machine tool until the position is adjusted by the operator and processing can begin. After processing is completed, the processed workpiece can be transferred from the machine tool to the bearing plate 10 through the reverse operation process. Then the bearing plate 10 descends to transport the workpiece out. This can greatly reduce manual handling and output, achieve effective labor-saving operation, and improve the overall structural safety.

[0054] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A workpiece loading and unloading device for a CNC machine tool, comprising a support frame (1), a lifting motor (2), a bearing device (3), and a pushing device (4), characterized in that: The top of the support frame (1) is provided with a lifting motor (2), which is fixedly connected to the top of the support frame (1) by an adapter bolt. The support frame (1) is provided with a bearing device (3), which is slidably connected to the inside of the support frame (1). The top of the bearing device (3) is provided with a pushing device (4), which is fixedly connected to the top of the bearing device (3) by an adapter screw. The bottom output shaft of the lifting motor (2) is threadedly connected to the bearing device (3).

2. The CNC machine tool workpiece loading and unloading device according to claim 1, characterized in that: The support frame (1) has a rectangular opening inside. Inside the rectangular opening, there are guide rods (5) arranged symmetrically on two opposite sides. The support frame (1) has two symmetrically arranged sliding grooves (6) on its side wall. The guide rods (5) and sliding grooves (6) are slidably connected to the bearing device (3). A pusher (7) is welded to the side of the support frame (1) away from the sliding grooves (6). The top of the support frame (1) has a connecting plate (8). The four corners of the connecting plate (8) have connecting holes that are fixedly connected to the lifting motor (2) by matching bolts. The center of the end face of the connecting plate (8) has a mating hole (9) that is mated to the output shaft of the lifting motor (2).

3. The CNC machine tool workpiece loading and unloading device according to claim 2, characterized in that: The bearing device (3) consists of four parts: a bearing plate (10), a rolling roller (11), a special-shaped limiting pin (12), and a threaded bushing (13). The main body of the bearing device (3) is the bearing plate (10). Inside the bearing plate (10) is a set of rolling rollers (11) that are evenly distributed. On the side of the bearing plate (10) is a set of special-shaped limiting pins (12) that are evenly distributed. The center of the end face of the bearing plate (10) is provided with a threaded bushing (13). The threaded bushing (13) is threadedly connected to the output shaft of the lifting motor (2).

4. The CNC machine tool workpiece loading and unloading device according to claim 3, characterized in that: The top two opposite sides of the bearing plate (10) are provided with two axially symmetrically distributed sliding grooves (15), and the sliding grooves (15) are perpendicular to the rolling roller (11). The top side of the bearing plate (10) is provided with a set of equidistantly distributed limiting holes (14), the axial direction of the limiting holes (14) is parallel to the rolling roller (11), and the limiting holes (14) are connected to the irregular limiting pins (12). The two opposite side walls of the bearing plate (10) are provided with two axially symmetrically distributed guide sliding holes (18), the guide sliding holes (18) are connected to the guide rod (5) in a sliding fit, and the guide sliding holes (18) and the limiting holes (14) are respectively located at the two shaft ends of the sliding grooves (15).

5. A CNC machine tool workpiece loading and unloading device according to claim 4, characterized in that: The side wall of the bearing plate (10) is provided with a reinforcing rib (16) at the bottom of the sliding groove (15), and the bottom of the vertical side wall of the reinforcing rib (16) is provided with a slider (17), which is connected to the sliding groove (6) in a sliding fit.

6. The CNC machine tool workpiece loading and unloading device according to claim 1, characterized in that: The pushing device (4) consists of two parts: a push plate (20) and two axially symmetrically distributed electric push rods (19). The back of the push plate (20) is welded to the output push rod shaft ends of the two electric push rods (19), and the bottom of the electric push rods (19) is fixedly connected to the top of the bearing plate (10) by adapter screws. The push plate (20) has a rubber layer (21) on the side away from the electric push rods (19), and the bottom of the push plate (20) has two axially symmetrically distributed sliders (22), which are slidably connected to the inside of the slide groove (15).

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