A flexible workpiece clamping device for a five-axis machining center

Abstract

This utility model belongs to the field of five-axis machining technology, and in particular to a flexible workpiece clamping device for a five-axis machining center. It includes a work frame, with a first electric push rod fixedly installed at both ends inside the work frame. A connecting frame is provided at the output end of the first electric push rod, and motors are fixedly installed on both sides of the top of the connecting frame. By operating the first electric push rods and motors, the connecting frame and clamping plate rotate to adjust the clamping according to the shape of the workpiece, reducing the need for fixture changes and improving flexibility and efficiency. When the first electric push rods work in conjunction, the connecting frame moves the sliding plate, and the workpiece's position is determined using calipers. A second electric push rod moves the support plate to support the bottom of the workpiece, improving stability. The elastic force generated by the first return spring causes a buffer block to move inside the connecting frame, reducing the impact force on the workpiece clamping, achieving soft clamping, and improving the surface quality of the workpiece.

Description

Technical Field

[0001] This utility model belongs to the field of five-axis machining technology, specifically relating to a flexible workpiece clamping device for a five-axis machining center. Background Technology

[0002] Five-axis machining involves the simultaneous coordinated movement of at least five axes on a single machine tool, enabling the production of extremely complex parts. However, some five-axis machining centers use simple fixtures that directly clamp the workpiece, making its surface susceptible to impact forces, which can damage it and reduce its quality. Utility Model Content

[0003] To address the problems mentioned in the background art, this utility model provides a flexible workpiece clamping device for five-axis machining centers. This device solves the problem that some five-axis machining centers use simple clamping fixtures that directly clamp the workpieces, making the surface susceptible to impact forces, causing damage, and reducing workpiece quality.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a flexible workpiece clamping device for a five-axis machining center, comprising a work frame, with a first electric push rod fixedly installed at both ends inside the work frame, a connecting frame provided at the output end of the first electric push rod, a motor fixedly installed on both sides of the top of the connecting frame, a rotating shaft provided at the output end of the motor, a clamping plate fixedly installed on the surface of the rotating shaft, a first return spring fixedly installed inside the connecting frame, a buffer block fixedly connected to one end of the first return spring, a second electric push rod fixedly installed at one end of the connecting frame, a support plate provided at the output end of the second electric push rod, sliding plates fixedly installed on both sides of the connecting frame, and calipers fixedly installed on both sides of the inner wall of the work frame.

[0005] Preferably, a connecting rod is fixedly installed at both ends of the work frame, a second return spring is provided inside the connecting rod, a limit block is fixedly installed at both ends of the second return spring, a connecting tube is provided on the surface of the connecting rod, a limit hole is opened on the surface of the connecting tube, a work plate is fixedly installed at one end of the connecting tube, and a connecting hole is opened on the surface of the work plate.

[0006] Preferably, the connecting rod is slidably connected to the connecting pipe, one end of the limiting block is located inside the connecting rod, and the limiting block is slidably connected to the connecting rod and the limiting hole.

[0007] Preferably, one end of the slide plate is located inside the work frame, and the slide plate is slidably connected to the work frame, with the slide plate located below the caliper.

[0008] Preferably, the clamping plate is located inside the connecting frame, and the clamping plate is rotatably connected to the connecting frame.

[0009] Preferably, the support plate is located inside the connecting frame and is slidably connected to the connecting frame, and the support plate is located below the clamping plate.

[0010] Preferably, the surface of the buffer block is convex, the buffer block is located inside the connecting frame, and the buffer block is slidably connected to the connecting frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The first electric push rod and motor work together to rotate the connecting frame and clamping plate to adjust the clamping according to the shape of the workpiece, reducing the need to change clamps and improving the flexibility and efficiency of use. When the first electric push rod works in conjunction, it causes the connecting frame to move the sliding plate. The position of the workpiece adjustment movement is determined by calipers. The second electric push rod works to move the support plate to support the bottom of the workpiece, improving the stability of use. The elastic force generated by the first return spring causes the buffer block to move inside the connecting frame, reducing the impact force on the workpiece clamping, achieving soft clamping and improving the surface quality of the workpiece. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a first three-dimensional structural diagram of the present invention; Figure 2 This is a second three-dimensional structural diagram of the present invention; Figure 3 This is a schematic diagram of the connecting frame of this utility model; Figure 4 This is a schematic diagram of the internal structure of the connecting pipe of this utility model.

[0013] In the diagram: 1. Work frame; 2. Connecting frame; 3. Motor; 4. Caliper; 5. Connecting pipe; 6. Slide plate; 7. Clamping plate; 8. First electric push rod; 9. Work plate; 10. Connecting hole; 11. Limiting block; 12. Second electric push rod; 13. Support plate; 14. Rotating shaft; 15. First return spring; 16. Buffer block; 17. Connecting rod; 18. Second return spring; 19. Limiting hole. Detailed Implementation

[0014] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 This utility model provides the following technical solution: a flexible workpiece clamping device for a five-axis machining center, including a work frame 1. A first electric push rod 8 is fixedly installed at both ends inside the work frame 1. A connecting frame 2 is provided at the output end of the first electric push rod 8. A motor 3 is fixedly installed on both sides of the top of the connecting frame 2. A rotating shaft 14 is provided at the output end of the motor 3. A clamping plate 7 is fixedly installed on the surface of the rotating shaft 14. A first return spring 15 is fixedly installed inside the connecting frame 2. A buffer block 16 is fixedly connected to one end of the first return spring 15. A second electric push rod 12 is fixedly installed at one end of the connecting frame 2. A support plate 13 is provided at the output end of the second electric push rod 12. Slide plates 6 are fixedly installed on both sides of the connecting frame 2. Calipers 4 are fixedly installed on both sides of the inner wall of the work frame 1.

[0016] In a specific embodiment of this utility model, the first electric push rod 8 extends, causing the connecting frame 2 to move the buffer block 16 closer to the workpiece being machined on the five axes. The motor 3 rotates the clamping plate 7 via the rotating shaft 14, facilitating adjustment of the clamping position according to the workpiece surface, reducing the need for fixture changes, and improving flexibility and efficiency. The second electric push rod 12 extends, moving the support plate 13 within the connecting frame 2 to support the bottom of the workpiece, improving stability. The spring force generated by the first return spring 15 moves the buffer block 16 within the connecting frame 2, reducing the impact on the workpiece clamping, achieving soft clamping, and improving the surface quality of the workpiece. The first electric push rod 8, in conjunction with the connecting frame 2, moves the sliding plate 6, and the caliper 4 clearly indicates the workpiece's position.

[0017] In this embodiment: the operator presses the limiting block 11 into the inside of the connecting rod 17, moves the connecting rod 17 inside the connecting tube 5, and adjusts it to a suitable position. Then, the elastic force generated by the second reset spring 18 causes the limiting block 11 to be locked inside the connecting tube 5 for support. Finally, a screw is used to pass through the connecting hole 10 to connect with the external device. The operation is simple, the operation difficulty is reduced, and the practicality of this device is improved.

[0018] The working principle and usage process of this utility model are as follows: After the utility model is installed, the operator presses the limiting block 11 into the inside of the connecting rod 17, moves the connecting rod 17 inside the connecting tube 5, and adjusts it to a suitable position. Then, the elastic force generated by the second return spring 18 causes the limiting block 11 to engage inside the connecting tube 5 for support. Finally, a screw is used to connect to external equipment through the connecting hole 10. The first electric push rod 8 extends, causing the connecting frame 2 to move the buffer block 16 closer to the workpiece being machined on the five axes. The motor 3 rotates the rotating shaft 14, causing the clamping plate 7 to rotate, facilitating adjustment of the clamping according to the workpiece surface, reducing the need to change clamps, and improving the flexibility and efficiency of use. The second electric push rod... When rod 12 operates, it causes the push rod of the second electric push rod 12 to extend and retract, moving the support plate 13 inside the connecting frame 2 to support the bottom of the workpiece and improve its stability. The elastic force generated by the first return spring 15 causes the buffer block 16 to move inside the connecting frame 2, reducing the impact force on the workpiece clamping and improving the surface quality of the workpiece. With the cooperation of the first electric push rod 8, the connecting frame 2 moves the workpiece left and right, adjusting the position of the workpiece, and causing the slide plate 6 to move inside the work frame 1. The position of the slide plate 6 is observed by calipers 4 to confirm the distance of the workpiece movement. The result is clear and concise. All electrical equipment in this device is powered by an external power supply, and the motors, electric push rods, etc. in this device are all controlled by a PLC controller system.

[0019] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flexible workpiece clamping device for a five-axis machining center, comprising a worktable (1), characterized in that: The work frame (1) has a first electric push rod (8) fixedly installed at both ends. The output end of the first electric push rod (8) is provided with a connecting frame (2). The top two sides of the connecting frame (2) are fixedly installed with motors (3). The output end of the motors (3) is provided with a rotating shaft (14). The surface of the rotating shaft (14) is fixedly installed with a clamping plate (7). The inside of the connecting frame (2) is fixedly installed with a first reset spring (15). One end of the first reset spring (15) is fixedly connected with a buffer block (16). One end of the connecting frame (2) is fixedly installed with a second electric push rod (12). The output end of the second electric push rod (12) is provided with a support plate (13). The two sides of the connecting frame (2) are fixedly installed with a sliding plate (6). The two sides of the inner wall of the work frame (1) are fixedly installed with calipers (4).

2. The flexible workpiece clamping device for a five-axis machining center according to claim 1, characterized in that: Both ends of the work frame (1) are fixedly installed with connecting rods (17). A second return spring (18) is provided inside the connecting rod (17). Limit blocks (11) are fixedly installed at both ends of the second return spring (18). A connecting tube (5) is provided on the surface of the connecting rod (17). Limit holes (19) are opened on the surface of the connecting tube (5). A work plate (9) is fixedly installed at one end of the connecting tube (5). A connecting hole (10) is opened on the surface of the work plate (9).

3. The flexible workpiece clamping device of claim 2, wherein: The connecting rod (17) is slidably connected to the connecting pipe (5), one end of the limiting block (11) is located inside the connecting rod (17), and the limiting block (11) is slidably connected to the connecting rod (17) and the limiting hole (19).

4. The flexible workpiece clamping device of claim 1, wherein: One end of the slide plate (6) is located inside the work frame (1), and the slide plate (6) is slidably connected to the work frame (1). The slide plate (6) is located below the caliper (4).

5. The flexible workpiece clamping device of claim 1, wherein: The clamping plate (7) is located inside the connecting frame (2), and the clamping plate (7) is rotatably connected to the connecting frame (2).

6. The flexible workpiece clamping device of claim 1, wherein: The support plate (13) is located inside the connecting frame (2) and is slidably connected to the connecting frame (2). The support plate (13) is located below the clamping plate (7).

7. The flexible workpiece clamping device of claim 1, wherein: The surface of the buffer block (16) is convex, the buffer block (16) is located inside the connecting frame (2), and the buffer block (16) is slidably connected to the connecting frame (2).

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