Turnover type cradle of machining center

Abstract

The invention discloses a turnover cradle of a machining center, and belongs to the technical field of cradles, the turnover cradle comprises a cradle body, a machined part turnover device is arranged on the cradle body, the machined part turnover device comprises a left turnover mechanism, a turnover frame, a machined part fixing mechanism and a right turnover mechanism, the machined part fixing mechanism is mounted on the turnover frame, and the right turnover mechanism is mounted on the turnover frame. The left side of the turnover frame is connected with the left turnover mechanism, the right side of the turnover frame is connected with the right turnover mechanism, the left turnover mechanism and the right turnover mechanism synchronously turn over the turnover frame, and the turnover frame turns over a machined part on the cradle body from one side of the machined part turnover device to the other side of the machined part turnover device. And the processed workpiece is inverted. According to the cradle, the machined part turnover device is additionally arranged on the cradle body, when the bottom face of the machined part needs to be machined, turnover of the machined part can be achieved through the machined part turnover device, operation is convenient, and the machining efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cradles, in particular to a cradle used in a machining center. Background Art

[0002] CNC machine tools are short for Computer numerical control machine tools, which are automated machine tools equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, decode them, express them in coded numbers, and input them into the CNC device through information carriers. After calculation and processing, the CNC device sends various control signals to control the movement of the machine tool and automatically process the parts according to the shape and size required by the drawing. The machining center is a highly automated multifunctional CNC machine tool with a tool magazine and an automatic tool changer.

[0003] The cradle in the current machining center does not have the function of flipping and inverting the workpiece. When the bottom surface of the workpiece needs to be processed, the staff needs to shut down the machine and re-clamp the workpiece. This processing method is not only inconvenient to operate, but also time-consuming and labor-intensive, which greatly affects the processing efficiency. Summary of the invention

[0004] The object of the present invention is to provide a machining center flip cradle which is easy to operate and improves machining efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A turnover cradle for a machining center comprises a cradle body, on which a workpiece turnover device is arranged, wherein the workpiece turnover device comprises a left turnover mechanism, a turnover frame, a workpiece fixing mechanism and a right turnover mechanism, wherein the workpiece fixing mechanism is mounted on the turnover frame, wherein the left side of the turnover frame is connected to the left turnover mechanism, and the right side of the turnover frame is connected to the right turnover mechanism, wherein the left turnover mechanism and the right turnover mechanism synchronously flip the flip frame, and the flip frame flips the workpiece on the cradle body from one side of the workpiece turnover device to the other side of the workpiece turnover device, so that the workpiece is inverted.

[0006] Furthermore, the left flipping mechanism and the right flipping mechanism have the same structure.

[0007] Furthermore, the right flipping mechanism includes a supporting vertical plate, a flipping trajectory template, a swing arm, a sliding pin and a servo motor, the flipping trajectory template is an inverted U-shaped flipping trajectory template, the surface of the inverted U-shaped flipping trajectory template is provided with a semicircular trajectory slide groove, the surface of the swing arm is provided with a long strip slide hole, the sliding pin is composed of a square block segment and a cylindrical segment, the servo motor is installed on the right side of the supporting vertical plate, the output shaft of the servo motor passes through the supporting vertical plate and is fixedly connected to one end of the swing arm, and the swing arm is perpendicular to the output shaft, the flipping trajectory template is installed on the left side surface of the supporting vertical plate, one end of the sliding pin is fixedly connected to the right middle portion of the flip frame, the other end of the sliding pin passes through the long strip slide hole and extends into the semicircular trajectory slide groove, the square block segment of the sliding pin is located in the long strip slide hole, the square block segment can slide along the long strip slide hole and the long strip slide hole can limit the rotation of the square block segment, and the cylindrical segment of the sliding pin can slide along the semicircular trajectory slide groove.

[0008] Furthermore, the flip frame includes a frame and a bearing plate, wherein the bearing plate is installed in the frame, and in the height direction of the frame, the bearing plate is located in the middle of the frame.

[0009] Furthermore, the workpiece fixing mechanism includes a fixing cylinder, an electromagnetic coil and an electromagnetic core rod, the fixing cylinder passes through a supporting plate and is fixed on the supporting plate, the electromagnetic coil is located in the fixing cylinder, the electromagnetic core rod is inserted in the electromagnetic coil, and both ends of the electromagnetic core rod are located outside the fixing cylinder, so as to fix the workpiece through the magnetic force at both ends of the electromagnetic core rod.

[0010] Furthermore, the upper end of the electromagnetic core rod is flush with the upper surface of the frame, and the lower end of the electromagnetic core rod is flush with the lower surface of the frame.

[0011] Furthermore, the cradle body includes a swing seat, a horizontal turntable and a motor, the motor is located in the swing seat and is connected to the center hole of the horizontal turntable above the swing seat through a connecting piece, and the left flip mechanism and the right flip mechanism are installed and fixed on the horizontal turntable.

[0012] Furthermore, a cover plate is provided at the center hole of the horizontal turntable.

[0013] Furthermore, a killing ring is fixed on the bottom surface of the horizontal turntable by screws, and the killing ring extends downward into the cradle body. The cradle body is provided with an arc-shaped killing plate and a hydraulic cylinder. The hydraulic cylinder drives the arc-shaped killing plate to make the arc-shaped killing plate close to the killing ring to prevent the horizontal turntable from rotating.

[0014] The beneficial effects of the present invention are: The present application adds a workpiece flipping device to the cradle body. When the bottom surface of the workpiece needs to be processed, the workpiece can be flipped through the workpiece flipping device, which facilitates operation and improves processing efficiency.

[0015] The flipping track templates in the left flipping mechanism and the right flipping mechanism of the present application adopt a semicircular track slide groove to guide the flipping, so that the flipping frame can be flipped and raised at the same time, which not only improves the flipping efficiency, but also makes the structure of the workpiece flipping device more simple and compact, and can free up a larger processing space for the workpiece.

[0016] The workpiece fixing mechanism of the present application adopts an electromagnetic adsorption fixing method, which greatly improves the fixing efficiency of the workpiece, especially the two ends of the electromagnetic core rod are located outside the fixing tube, and the workpiece is fixed by the magnetic force at the two ends of the electromagnetic core rod. Regardless of whether the flip frame is in the front state or the back state, the workpiece can be fixed by a set of workpiece fixing mechanisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described with the aid of the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other accompanying drawings according to the following drawings without creative work: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 A perspective view of the right flip mechanism shown; Figure 3 for Figure 2 A schematic diagram of the structure of the sliding pin shown; Figure 4 for Figure 3 A longitudinal section of the tilting frame shown; Figure 5 for Figure 1 A perspective view of the cradle body shown; Figure 6 for Figure 5 Exploded view shown.

[0018] In the figure: 1. cradle body; 2. left flipping mechanism; 3. flipping frame; 4. workpiece fixing mechanism; 5. right flipping mechanism; 6. supporting vertical plate; 7. flipping track template; 8. swing arm; 9. sliding pin; 10. servo motor; 11. semicircular track slide groove; 12. long strip slide hole; 13. square block segment; 14. cylindrical segment; 15. output shaft; 16. frame; 17. bearing plate; 18. fixing cylinder; 19. electromagnetic coil; 20. electromagnetic core rod; 21. swing seat; 22. horizontal turntable; 23. motor; 24. connecting piece; 25. center hole; 26. cover plate; 27. killing ring; 28. arc-shaped killing plate; 29. ​​hydraulic cylinder. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper surface", "lower surface", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "forward", "reverse", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] like Figure 1 As shown, a machining center flip cradle includes a cradle body 1, on which a workpiece flipping device is provided, the workpiece flipping device includes a left flipping mechanism 2, a flip frame 3, a workpiece fixing mechanism 4 and a right flipping mechanism 5, the workpiece fixing mechanism 4 is installed on the flip frame 3, the left side of the flip frame 3 is connected to the left flipping mechanism 2, the right side of the flip frame 3 is connected to the right flipping mechanism 5, the left flipping mechanism 2 and the left flipping mechanism 5 flip the flip frame 3 synchronously, and the flip frame 3 flips the workpiece on the cradle body 1 from one side of the workpiece flipping device to the other side of the workpiece flipping device, so that the workpiece is inverted. In this embodiment, a workpiece flipping device is added to the cradle body, and when the bottom surface of the workpiece needs to be processed, the workpiece can be flipped by the workpiece flipping device, which facilitates the operation and improves the processing efficiency.

[0022] like Figure 2 , 3As shown, the left flip mechanism 2 has the same structure as the right flip mechanism 5. The right flip mechanism 5 includes a supporting vertical plate 6, a flip track template 7, a swing arm 8, a sliding pin 9 and a servo motor 10. The flip track template 7 is an inverted U-shaped flip track template. The surface of the inverted U-shaped flip track template is provided with a semicircular track slide groove 11. The surface of the swing arm 8 is provided with a long strip slide hole 12. The sliding pin 9 is composed of a square block segment 13 and a cylindrical segment 14. The servo motor 10 is installed on the right side of the supporting vertical plate 6. The output shaft 15 of the servo motor 10 passes through the supporting vertical plate 6 and One end of the swing arm 8 is fixedly connected and the swing arm 8 is perpendicular to the output shaft 15. The flip track template 7 is installed on the left side of the supporting vertical plate 6. One end of the sliding pin 9 is fixedly connected to the middle of the right side of the flip frame 3. The other end of the sliding pin 9 passes through the long sliding hole 12 and extends into the semicircular track slot 11. The square block segment 13 of the sliding pin is located in the long sliding hole 12. The square block segment 13 can slide along the long sliding hole 12 and the long sliding hole 12 can limit the rotation of the square block segment 13. The cylindrical segment 14 of the sliding pin can slide along the semicircular track slot 11.

[0023] The flipping track templates in the left flipping mechanism and the right flipping mechanism of this embodiment adopt a semicircular track slide groove to guide the flipping, so that the flipping frame can be flipped and raised at the same time, which not only improves the flipping efficiency, but also makes the structure of the workpiece flipping device more simple and compact, and can free up a larger processing space for the workpiece.

[0024] like Figure 4 As shown, the flip frame 3 includes a frame 16 and a bearing plate 17 . The bearing plate 17 is installed in the frame 16 . In the height direction of the frame 16 , the bearing plate 17 is located in the middle of the frame 16 .

[0025] The workpiece fixing mechanism 4 includes a fixing cylinder 18, an electromagnetic coil 19 and an electromagnetic core rod 20. The fixing cylinder 18 passes through the carrier plate 17 and is fixed on the carrier plate 17. The electromagnetic coil 19 is located in the fixing cylinder 18. The electromagnetic core rod 20 is inserted in the electromagnetic coil 19. The electromagnetic core rod 20 is used to fix the workpiece by magnetic force. The upper end of the electromagnetic core rod 20 is flush with the upper surface of the frame 16, and the lower end of the electromagnetic core rod 20 is flush with the lower surface of the frame 16. The workpiece fixing mechanism of this embodiment adopts an electromagnetic adsorption fixing method, which greatly improves the fixing efficiency of the workpiece.

[0026] In this embodiment, there are four workpiece fixing mechanisms 4, which form a set. No matter whether the flip frame is in the front or back state, the workpiece can be fixed by one set of workpiece fixing mechanisms.

[0027] like Figure 5 ,6 As shown, the cradle body 1 includes a swing seat 21, a horizontal turntable 22 and a motor 23. The motor 23 is located in the swing seat 21 and is connected to the central hole 25 of the horizontal turntable 22 above the swing seat 21 through a connecting piece 24. The left flip mechanism 2 and the right flip mechanism 5 are installed and fixed on the horizontal turntable 22. A cover plate 26 is provided at the central hole 25 of the horizontal turntable 22.

[0028] A killing ring 27 is fixed on the bottom surface of the horizontal turntable 22 by screws, and the killing ring 27 extends downward into the cradle body 1. The cradle body 1 is provided with an arc-shaped killing plate 28 and a hydraulic cylinder 29. The hydraulic cylinder 29 drives the arc-shaped killing plate 28 to make the arc-shaped killing plate 28 close to the killing ring 27 to lock the horizontal turntable 22 and prevent the horizontal turntable 22 from rotating.

[0029] In addition, those skilled in the art may combine and combine the different embodiments or examples and the features of the different embodiments or examples described in this specification without contradiction. Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A machining center flip cradle, comprising a cradle body, characterized in that: The cradle body is provided with a workpiece turning device, which includes a left turning mechanism, a turning frame, a workpiece fixing mechanism and a right turning mechanism. The workpiece fixing mechanism is installed on the turning frame, the left side of the turning frame is connected to the left turning mechanism, and the right side of the turning frame is connected to the right turning mechanism. The left turning mechanism and the left turning mechanism turn the turning frame synchronously, and the turning frame turns the workpiece on the cradle body from one side of the workpiece turning device to the other side of the workpiece turning device, so that the workpiece is inverted.

2. The machining center flip cradle according to claim 1, characterized in that: The left flipping mechanism has the same structure as the right flipping mechanism.

3. The machining center flip cradle according to claim 2, characterized in that: The right flipping mechanism comprises a supporting vertical plate, a flipping track template, a swing arm, a sliding pin and a servo motor, the flipping track template is an inverted U-shaped flipping track template, the surface of the inverted U-shaped flipping track template is provided with a semicircular track slide groove, the surface of the swing arm is provided with a long strip slide hole, the sliding pin is composed of a square block segment and a cylindrical segment, the servo motor is installed on the right side of the supporting vertical plate, the output shaft of the servo motor passes through the supporting vertical plate and is fixedly connected to one end of the swing arm, and the swing arm is perpendicular to the output shaft, the flipping track template is installed on the left side surface of the supporting vertical plate, one end of the sliding pin is fixedly connected to the right middle part of the flip frame, the other end of the sliding pin passes through the long strip slide hole and extends into the semicircular track slide groove, the square block segment of the sliding pin is located in the long strip slide hole, the square block segment can slide along the long strip slide hole and the long strip slide hole can limit the rotation of the square block segment, and the cylindrical segment of the sliding pin can slide along the semicircular track slide groove.

4. The machining center flip cradle according to claim 1, characterized in that: The flip frame comprises a frame and a bearing plate. The bearing plate is installed in the frame. In the height direction of the frame, the bearing plate is located in the middle of the frame.

5. The machining center flip cradle according to claim 4, characterized in that: The workpiece fixing mechanism includes a fixing cylinder, an electromagnetic coil and an electromagnetic core rod. The fixing cylinder passes through a supporting plate and is fixed on the supporting plate. The electromagnetic coil is located in the fixing cylinder. The electromagnetic core rod is inserted in the electromagnetic coil. The electromagnetic core rod is used to fix the workpiece by magnetic force.

6. The machining center flip cradle according to claim 5, characterized in that: The upper end of the electromagnetic core rod is flush with the upper surface of the frame, and the lower end of the electromagnetic core rod is flush with the lower surface of the frame.

7. The machining center flip cradle according to claim 1, characterized in that: The cradle body includes a swing seat, a horizontal turntable and a motor. The motor is located in the swing seat and is connected to the central hole of the horizontal turntable above the swing seat through a connecting piece. The left flip mechanism and the right flip mechanism are installed and fixed on the horizontal turntable.

8. The machining center flip cradle according to claim 7, characterized in that: A cover plate is provided at the center hole of the horizontal turntable.

9. The machining center flip cradle according to claim 8, characterized in that: A killing ring is fixed on the bottom surface of the horizontal turntable by screws, and the killing ring extends downward into the cradle body. An arc-shaped killing plate and a hydraulic cylinder are arranged in the cradle body. The hydraulic cylinder drives the arc-shaped killing plate to make the arc-shaped killing plate close to the killing ring to prevent the horizontal turntable from rotating.

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