Flange end grinding device

Abstract

The utility model is suitable for the technical field of polishing, and provides a flange end polishing device which comprises a base, and a rotating disc is rotationally connected to the upper portion of the base. The turntable is provided with a driving mechanism for driving the turntable to rotate; a workbench is fixedly connected above the turntable; a matched bidirectional lead screw is arranged below the guide hole; the two ends of the two-way lead screw are rotationally connected with the bottom face of the workbench. Sliding blocks are fixedly connected above the left-handed nut and the right-handed nut respectively; clamping columns are fixedly connected to the upper portions of the two sliding blocks correspondingly. An end face grinding mechanism is arranged above the workbench. A horizontal first hydraulic pump is fixedly connected above the base; the top end of a telescopic shaft of the first hydraulic pump is fixedly connected with a chamfering driver which is obliquely arranged; and the rotating shaft of the chamfering driver is fixedly connected with the grinding roller, so that the grinding device can grind the end face of the flange and chamfer the edge position of the side face of the flange, the grinding of one end face of the flange and the chamfering of the edge position of the flange can be completed only by clamping the flange once, and the working time is saved.

Description

Technical Field

[0001] This utility model relates to the field of grinding technology, and in particular to a flange end grinding device. Background Technology

[0002] A flange, also called a flange plate or flange, is mostly disc-shaped with several bolt holes symmetrically arranged on it. Flanges are connecting parts between shafts, used for connecting pipe ends; a flange connection involves first fixing two pipes, fittings, or equipment to their respective flanges, then placing a gasket between the two flanges and tightening them together with bolts to complete the connection. After the basic shape of a single flange is machined, it needs to be ground using equipment.

[0003] If the flange is preliminarily formed, grinding can easily result in sharp edges on the sides. These sharp edges can easily cut the worker's hands or other parts of their body. Therefore, chamfering is often performed on the flange sides before grinding the flange faces. Existing flange face grinding equipment can only grind the flange faces; chamfering of the flange edges needs to be done in advance. This process of chamfering and grinding requires repeated clamping of the flange, which is quite troublesome. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this utility model is to provide a flange end grinding device that can grind the flange end face and chamfer the side edge. Only one clamping operation is required to complete the grinding of one end face and the chamfering of the edge, saving working time. The two clamping pins can be placed in the two bolt holes of the flange to clamp and fix the flange, which helps to avoid affecting the chamfering work on the side edge of the flange.

[0005] To achieve the above objectives, this utility model provides a flange end grinding device, including a base, with a turntable rotatably connected above the base; the turntable is equipped with a drive mechanism for rotating the turntable; a worktable is fixedly connected above the turntable; the worktable has a guide hole; a matching bidirectional lead screw is provided below the guide hole; both ends of the bidirectional lead screw are rotatably connected to the bottom surface of the worktable; a handle is fixedly connected to one end of the bidirectional lead screw; a matching left-handed nut is provided on the left-hand threaded section of the bidirectional lead screw, and a matching right-handed nut is provided on the right-hand threaded section of the bidirectional lead screw; sliders are fixedly connected above the left-handed nut and the right-handed nut respectively; both sliders are located inside the guide hole and are slidably connected to the worktable; clamping columns are fixedly connected above the two sliders respectively; an end face grinding mechanism is provided above the worktable; a horizontal first hydraulic pump is fixedly connected above the base; an inclined chamfering driver is fixedly connected to the top end of the telescopic shaft of the first hydraulic pump; and a grinding roller is fixedly connected to the rotating shaft of the chamfering driver.

[0006] According to the flange end grinding device of this utility model, the first driver of the driving mechanism is fixed above the base; the rotating shaft of the first driver is fixedly connected to a gear; the gear is provided with a mating external gear ring; the external gear ring is sleeved and fixed outside the turntable.

[0007] According to the flange end grinding device of this utility model, the fixing frame of the end face grinding mechanism is fixed on the base; the fixing frame is fixedly connected to a second hydraulic pump located above the worktable; the bottom end of the telescopic shaft of the second hydraulic pump is fixedly connected to a grinding driver; and the bottom end of the rotating shaft of the grinding driver is fixedly connected to a grinding disc.

[0008] According to the flange end grinding device of this utility model, the two clamping columns are symmetrically arranged in vertical cross-section about the center position of the guide hole.

[0009] According to the flange end grinding device of this utility model, the lower surface of the workbench and the upper surface of the turntable are fixedly connected by a plurality of evenly distributed support legs; both ends of the bidirectional lead screw are fixedly connected with handles.

[0010] According to the flange end grinding device of this utility model, each clamping column is provided with a clamping threaded hole at its top; the clamping threaded hole is provided with a clamping bolt; the bolt head of the clamping bolt is engaged with the clamping column.

[0011] This utility model provides a flange end grinding device, including a base that allows for easy rotatable connection to a turntable. The turntable is rotatably connected above the base, and a drive mechanism drives its rotation. The turntable facilitates the rotation of a worktable, and the drive mechanism facilitates the rotation of the turntable. A worktable is fixedly connected above the turntable, allowing for easy placement and fixation of the flange. Rotation of the worktable facilitates the rotation of the fixed flange, completing the chamfering of the flange's side edge. The worktable has a guide hole, and a matching bidirectional screw is located below the guide hole. The guide hole and bidirectional screw facilitate cooperation with a slider, allowing the left-hand and right-hand nuts to move linearly closer or further apart. Both ends of the bidirectional screw are rotatably connected to the bottom surface of the worktable. Rotation of the bidirectional screw facilitates the synchronous linear movement of the left-hand and right-hand nuts. A handle is fixedly connected to one end of the bidirectional screw, allowing for easy hand gripping and rotation. A matching left-hand nut is mounted on the left-hand threaded section of the bidirectional screw, and a matching right-hand nut is mounted on the right-hand threaded section. Slider blocks are fixedly connected to the top of the left-hand and right-hand nuts, respectively. The sliders help prevent the left-hand and right-hand nuts from rotating with the rotation of the bidirectional screw. Both sliders are located inside the guide hole and are slidably connected to the worktable. The sliders being located inside the guide hole helps prevent interference between the sliders and the flange during movement. Clamping columns are fixedly connected to the top of the two sliders. The two clamping columns are respectively inserted into the two bolt holes of the flange. By rotating the bidirectional screw, the two clamping columns can be moved away from or closer to each other, achieving two different clamping methods for the flange. An end face grinding mechanism is set above the worktable. The end face grinding mechanism can grind the upper end face of the flange, which helps improve the flatness of the flange end face. A horizontal first hydraulic pump is fixedly connected above the base. The top of the telescopic shaft of the first hydraulic pump is fixedly connected to an inclined chamfering driver. The rotation shaft of the chamfering driver is fixedly connected to a grinding roller. The inclined chamfering driver allows the grinding roller to tilt, and the grinding roller can chamfer the side edge of the flange. The first hydraulic pump can adjust the horizontal position of the grinding roller to prevent interference between the grinding roller and the grinding disc. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 yes Figure 1 Schematic diagram of Part A;

[0014] Figure 3 This is a second-view structural schematic diagram of the present invention;

[0015] Figure 4 yes Figure 3 A schematic diagram of the structure of part B;

[0016] Figure 5 It is a sectional view of the structure of components such as the turntable and worktable;

[0017] Figure 6 This is a schematic diagram of the structure where the flange is fixed on the workbench;

[0018] In the diagram: 1-base, 2-turntable, 3-external gear ring, 4-gear, 5-fixed frame, 6-second hydraulic pump, 7-grinding driver, 8-grinding disc, 9-worktable, 10-first hydraulic pump, 11-chamfering driver, 12-grinding roller, 13-clamping column, 14-guide hole, 15-double-acting screw, 16-handle, 17-first driver, 18-right-hand nut, 19-left-hand nut, 20-support leg, 21-slider, 22-flange, 23-bolt placement hole, 24-clamping bolt, 25-clamping threaded hole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0020] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 This utility model provides a flange end grinding device, which includes a base 1, a turntable 2 rotatably connected above the base 1, and the turntable 2 can rotate on the base 1. The turntable 2 is provided with a drive mechanism to drive the turntable 2 to rotate, and the drive mechanism can serve as the power source to drive the turntable 2 to rotate. A worktable 9 is fixedly connected above the turntable 2, and the rotation of the turntable 2 can drive the coaxial worktable 9 to rotate synchronously. The worktable 9 is provided with a guide hole 14, and a matching bidirectional lead screw 15 is provided below the guide hole 14. The bidirectional lead screw 15 is located directly below the guide hole 14 and is arranged parallel to the guide hole 14. Both ends of the bidirectional lead screw 15 are rotatably connected to the bottom surface of the worktable 9. A handle 16 is fixedly connected to one end of the bidirectional lead screw 15, which facilitates the rotation of the bidirectional lead screw 15. A left-handed nut 19 is fitted on the left-hand threaded section of the bidirectional lead screw 15, and a right-handed nut 18 is fitted on the right-hand threaded section of the bidirectional lead screw 15. A slider 21 is fixedly connected above the left-handed nut 19 and the right-handed nut 18, respectively. Both sliders 21 are located inside the guide hole 14 and are slidably connected to the worktable 9. When the bidirectional lead screw 15 rotates, the left-handed nut 19 and the right-handed nut 18 do not rotate under the restriction of the sliders 21. The left-handed nut and the right-handed nut 18 can make synchronous linear movements away from or towards each other under the rotation drive of the bidirectional lead screw 15.

[0021] Two clamping columns 13 are fixedly connected above the two sliders 21. The clamping columns 13 can be placed inside the bolt holes 23 of the flange 22. After being placed inside the two bolt holes 23 of the flange 22, the two clamping columns 13 move synchronously away or synchronously towards each other, causing the clamping columns 13 to abut against the sides of the bolt holes 23 to clamp the flange 22. The clamping columns 13 being located inside the bolt holes 23 of the flange 22 avoids clamping the flange 22 by clamping its sides, facilitating chamfering work on the sides of the flange 22. An end-face grinding mechanism is provided above the worktable 9, which can grind the upper end face of the flange 22. A horizontal first hydraulic pump 10 is fixedly connected above the base 1. The first hydraulic pump 10 can drive the grinding roller 12 to move closer to or away from the flange 22. When the grinding roller 12 is close to the flange 22, the rotation of the turntable 2 drives the flange 22 to rotate, thus completing the chamfering work on the side edge of the flange 22. When the grinding roller 12 is away from the flange 22, it can avoid interference with the grinding disc 8. The top of the telescopic shaft of the first hydraulic pump 10 is fixedly connected to an inclined chamfering driver 11. The rotation shaft of the chamfering driver 11 is fixedly connected to the grinding roller 12. The chamfering driver 11 can drive the rotation of the grinding roller 12, and the rotation of the grinding roller 12 can grind the edge of the flange 22 to form a chamfer.

[0022] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 Furthermore, the first driver 17 of the drive mechanism of this utility model is fixed above the base 1. The rotating shaft of the first driver 17 is fixedly connected to the gear 4. The gear 4 is provided with a meshing external gear ring 3. The external gear ring 3 is sleeved and fixed outside the turntable 2. The first driver 17 can drive the gear 4 to rotate. The gear 4 meshes with the external gear ring 3 fixed outside the turntable 2, causing the turntable 2 to rotate. The fixing frame 5 of the end face grinding mechanism is fixed on the base 1. The fixing frame 5 is fixedly connected to the second hydraulic pump 6 located above the worktable 9. The bottom end of the telescopic shaft of the second hydraulic pump 6 is fixedly connected to the grinding driver 7. The bottom end of the rotating shaft of the grinding driver 7 is fixedly connected to the grinding disc 8. The second hydraulic pump 6 can drive the grinding disc 8 to rise and fall. The grinding driver 7 can drive the grinding disc 8 to rotate to grind the flange 22. The grinding disc 8 descends and contacts the upper surface of the flange 22 to complete the grinding of the upper surface of the flange 22. The diameter of the grinding disc 8 is larger than the diameter of the flange 22, and the entire upper end face of the flange 22 can be ground in one go.

[0023] Two clamping columns 13 are symmetrically arranged in their vertical cross-sections about the center of the guide hole 14. This symmetrical arrangement ensures that the central axis of the flange 22 coincides with the central axis of the turntable 2 when clamping the flange 22, facilitating the rotation of the flange 22 with the turntable 2. The lower surface of the worktable 9 and the upper surface of the turntable 2 are fixedly connected by several evenly distributed support legs 20, providing stable support for the worktable 9. Both ends of the bidirectional lead screw 15 are fixedly connected to handles 16. The two handles 16 allow the worker to easily rotate the bidirectional lead screw 15, facilitating the clamping and loosening of the flange 22 based on proximity. Each clamping column 13 is provided with a clamping threaded hole 25 at its top. The clamping threaded hole 25 is provided with a clamping bolt 24. The bolt head of the clamping bolt 24 is engaged with the clamping column 13. The clamping bolt 24 can better adapt to different flange thicknesses. When the flange thickness is small, the clamping bolt 24 is turned so that the top surface of the bolt head of the clamping bolt 24 is lower than the upper surface of the flange. The same applies to the opposite.

[0024] Working principle: Place flange 22 on workbench 9. Two clamping columns 13 are located in two symmetrical bolt holes 23. Rotate the double-acting screw 15 so that the two clamping columns 13 abut against the inner wall of the bolt holes 23 and clamp them, thus fixing flange 22. Start chamfering driver 11 and start first hydraulic pump 10 so that rotating roller reaches the designated chamfering position. Start first driver 17 so that turntable 2 drives flange 22 to rotate. After chamfering the edge of flange 22, the telescopic shaft of first hydraulic pump 10 retracts, and grinding roller 12 stops rotating after moving away from flange 22. Second hydraulic pump 6 drives rotating grinding disc 8 to descend and grind the upper end face of flange 22. After grinding, grinding disc 8 rises and stops rotating. The worker rotates double-acting screw 15 to release flange 22, flips flange 22 over, and continues the above process. After all the work is completed, the grinding of both ends of flange 22 and the chamfering of both sides are finished.

[0025] In summary, this utility model provides a flange end grinding device, including a base that allows for easy rotational connection to a turntable. The turntable is rotatably connected above the base, and a drive mechanism is provided to rotate it. The turntable facilitates the rotation of a worktable, and the drive mechanism is beneficial for driving the turntable's rotation. A worktable is fixedly connected above the turntable, allowing for easy placement and fixation of the flange. Rotation of the worktable facilitates the rotation of the fixed flange, completing the chamfering of the flange's side edge. The worktable has a guide hole, and a matching bidirectional screw is located below the guide hole. The guide hole and bidirectional screw facilitate cooperation with a slider, allowing the left-hand and right-hand nuts to move linearly closer or further apart. Both ends of the bidirectional screw are rotatably connected to the bottom surface of the worktable. Rotation of the bidirectional screw facilitates the synchronous linear movement of the left-hand and right-hand nuts. A handle is fixedly connected to one end of the bidirectional screw, allowing for easy hand gripping and rotation. A matching left-hand nut is provided on the left-hand threaded section of the bidirectional screw, and a matching right-hand nut is provided on the right-hand threaded section. A slider is fixedly connected above the nuts, specifically the left-hand and right-hand nuts. This slider design helps prevent the left-hand and right-hand nuts from rotating with the bidirectional screw. Both sliders are located inside guide holes and slidably connected to the worktable. The sliders' location inside the guide holes helps prevent interference with the flange during movement. Clamping pins are fixedly connected above each slider. These pins are inserted into the bolt holes of the flange. Rotating the bidirectional screw allows the clamping pins to move away from or towards each other, enabling two different clamping methods for the flange. An end-face grinding mechanism is installed above the worktable. This mechanism grinds the upper end face of the flange, improving its flatness. A horizontal first hydraulic pump is fixedly connected above the base. An inclined chamfering driver is fixedly connected to the top of the pump's telescopic shaft. The rotating shaft of the chamfering driver is fixedly connected to a grinding roller. The inclined chamfering driver allows the grinding roller to tilt, enabling chamfering of the flange's side edges. The first hydraulic pump adjusts the horizontal position of the grinding roller to prevent interference between the roller and the grinding disc.

[0026] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A flange end grinding device, characterized in that, The device includes a base, with a turntable rotatably connected above it; the turntable is equipped with a drive mechanism for rotating it; a worktable is fixedly connected above the turntable; the worktable has a guide hole; a matching bidirectional lead screw is located below the guide hole; both ends of the bidirectional lead screw are rotatably connected to the bottom surface of the worktable; a handle is fixedly connected to one end of the bidirectional lead screw; a matching left-handed nut is provided on the left-hand threaded section of the bidirectional lead screw, and a matching right-handed nut is provided on the right-hand threaded section of the bidirectional lead screw; sliders are fixedly connected above the left-handed nut and the right-handed nut, respectively; both sliders are located inside the guide hole and are slidably connected to the worktable; clamping posts are fixedly connected above the two sliders, respectively; an end-face grinding mechanism is provided above the worktable; a horizontal first hydraulic pump is fixedly connected above the base; an inclined chamfering driver is fixedly connected to the top of the telescopic shaft of the first hydraulic pump; and a grinding roller is fixedly connected to the rotating shaft of the chamfering driver.

2. The flange end grinding device according to claim 1, characterized in that, The first driver of the drive mechanism is fixed above the base; the rotating shaft of the first driver is fixedly connected to a gear; the gear is provided with a mating external gear ring; the external gear ring is sleeved and fixed outside the turntable.

3. The flange end grinding device according to claim 1, characterized in that, The fixing frame of the end face grinding mechanism is fixed on the base; the fixing frame is fixedly connected to the second hydraulic pump located above the worktable; the bottom end of the telescopic shaft of the second hydraulic pump is fixedly connected to the grinding driver; the bottom end of the rotating shaft of the grinding driver is fixedly connected to the grinding disc.

4. The flange end grinding device according to claim 1, characterized in that, The two clamping posts are symmetrically arranged in vertical cross-section about the center of the guide hole.

5. The flange end grinding device according to claim 1, characterized in that, The lower surface of the workbench and the upper surface of the turntable are fixedly connected by a number of evenly distributed legs; both ends of the bidirectional lead screw are fixedly connected with handles.

6. The flange end grinding device according to claim 1 or 2, characterized in that, Each clamping column is provided with a clamping threaded hole at its top; the clamping threaded hole is provided with a clamping bolt; the bolt head of the clamping bolt is engaged with the clamping column.

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