A flap mechanism

Abstract

The utility model discloses a kind of turnover plate mechanisms, comprising: substrate and support frame, substrate one end is hinged with support frame, two main drive devices are symmetrically arranged in the two sides or bottom surface of substrate, main drive device can drive substrate to realize the turnover of horizontal state and vertical state;Further comprising the positioning drive mechanism between two main drive devices, the spacing of positioning drive mechanism with two main drive devices is equal, positioning drive mechanism includes detection device, brake device and auxiliary drive device, auxiliary drive device can drive substrate to realize the turnover of horizontal state and vertical state;When detection device detects that substrate is turned over to vertical state, brake device brakes auxiliary drive device.Make substrate can be more rapidly realized the turnover between horizontal state and vertical state, auxiliary drive device can be braked when substrate is in vertical state, without stop block, accurate positioning can be achieved, so that substrate can be accurately kept in processing position.

Description

Technical Field

[0001] This utility model relates to the field of machine tool processing technology, and in particular to a flipping mechanism. Background Technology

[0002] In traditional large-scale five-axis flip-plate milling machining centers, after the base plate of the flip-plate mechanism is clamped to the worktable by the worktable clamping device, the base plate is usually directly driven by a hydraulic cylinder for flipping. The flipping speed is relatively slow, affecting the overall production efficiency. Moreover, after flipping, the positioning accuracy is often not ideal, requiring additional stops for mechanical positioning. This can easily lead to a large mechanical impact on the worktable when it flips into place, thus affecting the positioning accuracy of the workpiece and the reliability of the flip-plate mechanism, and consequently affecting the machining quality of the workpiece. Summary of the Invention

[0003] This utility model provides a flip-plate mechanism to overcome the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A flipping mechanism includes: a base plate and a support frame, one end of the base plate is hinged to the support frame, and two main driving devices are symmetrically arranged on both sides or the bottom of the base plate, the main driving devices being able to drive the base plate to flip in a horizontal and vertical state. It also includes a positioning drive mechanism located between the two main drive devices. The positioning drive mechanism is equidistant from the two main drive devices. The positioning drive mechanism includes a detection device, a braking device, and an auxiliary drive device. The auxiliary drive device can drive the substrate to achieve flipping between horizontal and vertical states. When the detection device detects that the substrate has been flipped to a vertical position, the braking device brakes the auxiliary drive device.

[0005] Furthermore, the support frame includes a base and a drive bracket vertically fixed to one side of the base, with both ends of the main drive device hinged to the base and the drive bracket, respectively.

[0006] Furthermore, the main drive device includes a hydraulic cylinder, the two ends of which are respectively hinged to the base plate and the support frame.

[0007] Furthermore, the support frame also includes two columns disposed opposite each other at both ends of the base and a crossbeam for connecting the upper ends of the two columns, the base, columns and crossbeam forming a window capable of accommodating a substrate in a vertical position.

[0008] Furthermore, the auxiliary drive device includes a direct drive motor, a lead screw, and a lead screw nut. The direct drive motor is hinged to the support frame, the mover of the direct drive motor is fixedly connected to the lead screw nut, the lead screw nut is sleeved on the lead screw, and one end of the lead screw is hinged to the base plate.

[0009] Furthermore, the detection device is a circular grating encoder installed inside the direct drive motor, and the braking device is a pneumatic clamp installed inside the direct drive motor, the pneumatic clamp being used to brake the mover of the direct drive motor.

[0010] Furthermore, it also includes adjusting shims, with adjusting shims provided at the bottom of both the base and the drive bracket.

[0011] Beneficial effects: The present invention provides a flipping mechanism that provides the main driving force for flipping the substrate through two main driving devices, and provides additional driving force for the substrate through an auxiliary driving device of the positioning driving mechanism, so that the substrate can flip between horizontal and vertical states more quickly; through the cooperation of the detection device and the braking device, the auxiliary driving device can brake when the substrate is in the vertical state, achieving precise positioning without the need for a stop, so that the substrate can be accurately held in the processing position. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of a flip-plate mechanism disclosed in this utility model (the substrate is in a horizontal state). Figure 2 This is a top view schematic diagram of a flip-plate mechanism disclosed in this utility model (the base plate is in a vertical state). Figure 3 This is a front view schematic diagram of a flip-plate mechanism disclosed in this utility model (the base plate is in a vertical state). Figure 4 This is a side view of a flip-plate mechanism disclosed in this utility model (the base plate is in a vertical state). Figure 5 This is a cross-sectional schematic diagram of the positioning drive mechanism of a flip-plate mechanism disclosed in this utility model.

[0014] In the picture: 1. Substrate; 2. Support frame; 21. Base; 22. Drive bracket; 23. Column; 24. Crossbeam; 3. Main drive unit; 31. Hydraulic cylinder; 4. Detection device; 5. Braking device; 6. Auxiliary drive device; 61. Direct drive motor; 62. Lead screw; 63. Lead screw nut; 7. Adjust the shims; 8. Workbench. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] This embodiment provides a flip-up mechanism, such as Figure 1 As shown, it includes: a substrate 1 and a support frame 2. One end of the substrate 1 is hinged to the support frame 2. Two main drive devices 3 are symmetrically arranged on both sides or the bottom of the substrate 1. The main drive devices 3 can drive the substrate 1 to achieve flipping in a horizontal and vertical state. In this embodiment, a worktable clamping device is provided on the substrate 1, and the worktable 8 is clamped on the substrate 1 by the worktable clamping device (the worktable clamping device is a prior art and will not be described in detail here). It also includes a positioning drive mechanism located between the two main drive units 3, wherein the positioning drive mechanism is equidistant from the two main drive units 3, such as... Figure 1 and Figure 5 As shown, the positioning drive mechanism includes a detection device 4, a braking device 5, and an auxiliary drive device 6. The auxiliary drive device 6 can drive the substrate 1 to flip between horizontal and vertical states. When the detection device 4 detects that the substrate 1 has been flipped to a vertical position, the braking device 5 brakes the auxiliary drive device 6.

[0017] The flipping plate mechanism provided by this embodiment provides main driving force for the flipping of the base plate 1 through two main driving devices 3, and provides additional driving force for the base plate 1 by using the auxiliary driving device 6 of the positioning driving mechanism, thereby enabling the base plate 1 to flip more rapidly between a horizontal state and a vertical state; through the cooperation of the detection device 4 and the braking device 5, the auxiliary driving device 6 can implement braking when the base plate 1 is in the vertical state, achieving precise positioning without a stopper, and enabling the base plate 1 to be accurately maintained at the processing position.

[0018] Specifically, as Figure 4 shows, the support frame 2 includes a base 21 and a driving bracket 22 vertically fixed on one side of the base 21, two ends of the main driving device 3 are respectively hinged to the base 21 and the driving bracket 22, and in this embodiment, the driving bracket 22 is fixed on the base 21 by bolts.

[0019] Specifically, as Figure 2 shows, the main driving device 3 includes an oil cylinder 31, two ends of the oil cylinder 31 are respectively hinged to the base plate 1 and the support frame 2, supports for hinging are fixed on both the base plate 1 and the support frame 2, and the oil cylinder 31 is hinged to the supports through hinge shafts.

[0020] Specifically, as Figure 3 shows, the support frame 2 further includes two upright columns 23 oppositely arranged on two ends of the base 21 and a cross beam 24 for connecting upper ends of the two upright columns, the base 21, the upright columns 23 and the cross beam 24 can be fixedly connected by bolts, enclosing a window that can accommodate the base plate 1 in the vertical state, and the support frame 2 forms a structure similar to a "mouth" shape, which can ensure the overall constant stiffness of the structure when the base plate 1 is in the vertical state, thereby ensuring processing stability and improving processing precision.

[0021] Specifically, as Figure 5 shows, the auxiliary driving device 6 includes a direct drive motor 61, a lead screw 62 and a lead screw nut 63, the direct drive motor 61 is hinged to the support frame 2, a rotor of the direct drive motor 61 is fixedly connected with the lead screw nut 63 (the lead screw nut 63 is embedded in the rotor), the lead screw nut 63 is sleeved on the lead screw 62, and one end of the lead screw 62 is hinged to the base plate 1.

[0022] Specifically, the detection device 4 is a circular grating encoder arranged in the direct drive motor 61, and the braking device 5 is a pneumatic clamp arranged in the direct drive motor 61, the pneumatic clamp is used for braking the rotor of the direct drive motor 61.

[0023] In this embodiment, the pneumatic clamp is fixed to the stator of the direct drive motor 61, the code disk of the circular grating encoder is fixed to the outer periphery of the rotor, and the light-emitting device of the circular grating encoder is fixed to the stator. During debugging, the control system of the machining center obtains the number of revolutions and angle of the mover when the substrate 1 is in a vertical state through the circular grating encoder. In subsequent formal use, when the circular grating encoder detects the number of revolutions and angle of the mover rotating to the corresponding vertical state, it indicates that the substrate 1 is in a vertical state. At this time, the control system clamps the mover of the direct drive motor 61 with the pneumatic clamp, and at the same time, the control system of the machining center controls the hydraulic cylinder 31 to stop feeding. Specifically, such as Figure 4 As shown, it also includes adjusting shims 7. The base 21 and the drive bracket 22 are both fixed with adjusting shims 7, which facilitates leveling when the support frame 2 is installed on the machining center. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A flip-plate mechanism, characterized in that, include: The substrate (1) and the support frame (2) are hinged at one end to the support frame (2). Two main drive devices (3) are symmetrically arranged on both sides or the bottom of the substrate (1). The main drive devices (3) can drive the substrate (1) to achieve the flipping of the horizontal and vertical states. It also includes a positioning drive mechanism located between the two main drive devices (3), the positioning drive mechanism being equidistant from the two main drive devices (3), the positioning drive mechanism including a detection device (4), a braking device (5) and an auxiliary drive device (6), the auxiliary drive device (6) being able to drive the substrate (1) to achieve horizontal and vertical flipping. When the detection device (4) detects that the substrate (1) has been flipped to a vertical position, the braking device (5) brakes the auxiliary drive device (6).

2. The flip-plate mechanism according to claim 1, characterized in that, The support frame (2) includes a base (21) and a drive bracket (22) vertically fixed to one side of the base (21). The two ends of the main drive device (3) are respectively hinged to the base (21) and the drive bracket (22).

3. The flip-plate mechanism according to claim 1, characterized in that, The main drive device (3) includes a hydraulic cylinder (31), the two ends of which are hinged to the base plate (1) and the support frame (2) respectively.

4. A flip-plate mechanism according to claim 2, characterized in that, The support frame (2) also includes two columns (23) disposed opposite to each other at both ends of the base (21) and a crossbeam (24) for connecting the upper ends of the two columns. The base (21), columns (23) and crossbeam (24) form a window that can accommodate the substrate (1) in a vertical state.

5. A flip-plate mechanism according to claim 1, characterized in that, The auxiliary drive device (6) includes a direct drive motor (61), a lead screw (62) and a lead screw nut (63). The direct drive motor (61) is hinged to the support frame (2). The mover of the direct drive motor (61) is fixedly connected to the lead screw nut (63). The lead screw nut (63) is sleeved on the lead screw (62). One end of the lead screw (62) is hinged to the base plate (1).

6. A flip-plate mechanism according to claim 1, characterized in that, The detection device (4) is a circular grating encoder installed in the direct drive motor (61), and the braking device (5) is a pneumatic clamp installed in the direct drive motor (61). The pneumatic clamp is used to brake the mover of the direct drive motor (61).

7. A flip-plate mechanism according to claim 1, characterized in that, It also includes adjusting shims (7), and adjusting shims (7) are provided at the bottom of the base (21) and the drive bracket (22).

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