Valve plate polishing tool

Abstract

The utility model relates to a valve plate polishing tool which comprises a base, side frames arranged on the two sides of the base, an overturning support arranged between the two side frames, a rotating motor driving the overturning support to rotate and a clamping mechanism arranged on the overturning support. A lifting mechanism for driving the lifting seat to move up and down is arranged on the bracket; a positioning mechanism is arranged between the overturning bracket and the lifting seat; the positioning mechanism comprises a first positioning disc fixed to the end of the overturning support, an elastic positioning column arranged on the first positioning disc, and a second positioning disc arranged on one side of the first positioning disc and movably arranged on the lifting base. The positioning hole is formed in the second positioning disc; and the driving mechanism drives the second positioning disc to move back and forth relative to the first positioning disc. By arranging the positioning mechanism, the overturning support can be fixed, and the situation that the overturning support shakes in the polishing process, and the polishing quality is affected is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of valve processing equipment, in particular to a valve plate grinding tool. Background Art

[0002] After the valve plate is produced, it needs to be polished to complete the fine processing of the valve plate and facilitate subsequent operations such as spraying. The existing grinding tooling for valve plate production has low efficiency in fixing and polishing the valve plate.

[0003] The Chinese utility model patent with authorization announcement number CN215092948U discloses a tooling for processing a three-eccentric valve plate of a butterfly valve. A flip mechanism is installed on both sides of the side frame to facilitate the grinding and polishing of multiple three-eccentric valve plates of butterfly valves at the same time. A center groove is opened in the middle of the frame plate to facilitate the grinding of valves of different shapes and sizes. A larger grinding object can be placed in the center groove for installation, and different surfaces of the three-eccentric valve plate of the butterfly valve can be ground. However, the flip mechanism lacks a positioning mechanism, which causes the angle of the frame plate to change easily during the grinding process, affecting the processing quality. Utility Model Content

[0004] The utility model aims to provide a valve plate grinding tool to solve the problems raised by the background technology.

[0005] The above-mentioned purpose of the utility model is achieved through the following technical solutions: a valve plate grinding tool, comprising: a base, side frames arranged on both sides of the base, a flip bracket arranged between the two side frames, a rotating motor for driving the flip bracket to rotate, and a clamping mechanism arranged on the flip bracket, lifting seats are arranged at both ends of the flip bracket, and a lifting mechanism for driving the lifting seat to move up and down is arranged on the bracket; a positioning mechanism is arranged between the flip bracket and the lifting seat, and the positioning mechanism includes a first positioning plate fixed to the end of the flip bracket, an elastic positioning column arranged on the first positioning plate, a second positioning plate arranged on one side of the first positioning plate and movably arranged on the lifting seat, a positioning hole arranged on the second positioning plate, and a driving mechanism for driving the second positioning plate to move forward and backward relative to the first positioning plate.

[0006] Preferably, the driving mechanism comprises an electromagnet fixed on the lifting seat and a return spring connected between the lifting seat and the second positioning plate, and the second positioning plate is provided with a magnetic attraction sheet corresponding to the electromagnet.

[0007] Preferably, a guide column is provided on the second positioning plate, the guide column is inserted on the lifting seat, and the return spring is sleeved on the outside of the guide column.

[0008] Preferably, the elastic positioning column includes a fixed sleeve fixed on the first positioning plate, a movable push rod movably arranged in the fixed sleeve, and a pressure spring connected between the fixed sleeve and the movable push rod, and the aperture of the positioning hole is larger than the diameter of the movable push rod and smaller than the diameter of the fixed sleeve.

[0009] Preferably, one end of the movable push rod facing the second positioning plate is in a dome structure.

[0010] Preferably, the elastic positioning columns are provided in two groups and are symmetrically distributed along the radial direction of the first positioning plate.

[0011] Preferably, a grinding cavity is provided in the middle of the flip bracket, and the clamping mechanism comprises two groups of clamping components, which are respectively arranged on both sides of the grinding cavity.

[0012] Preferably, the clamping assembly comprises a pneumatic finger and a clamping block mounted on the pneumatic finger.

[0013] Preferably, the lifting mechanism includes a screw rod rotatably mounted on the side frame and a driving motor driving the screw rod to rotate, and the screw rod is connected to the lifting seat by threaded cooperation.

[0014] The beneficial effects of the utility model are as follows: the utility model can fix the flip bracket by arranging a positioning mechanism, thereby preventing the flip bracket from shaking during the grinding process and affecting the grinding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0016] Figure 2 It is a cross-sectional view of an embodiment of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the positioning mechanism in the embodiment of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the elastic positioning column in the embodiment of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the clamping mechanism in the embodiment of the utility model;

[0020] In the figure: 1-base, 2-side frame, 3-flip bracket, 301-grinding chamber, 4-rotating motor, 5-clamping mechanism, 501-pneumatic finger, 502-clamping block, 6-lifting seat, 601-jack, 7-lifting mechanism, 701-driving motor, 702-screw, 8-positioning mechanism, 801-first positioning plate, 802-second positioning plate, 803-elastic positioning column, 8031-fixed sleeve, 8032-movable ejector rod, 8033-top pressure spring, 804-positioning hole, 805-electromagnet, 806-magnetic suction sheet, 807-reset spring, 808-guide column. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] This specific embodiment is merely an explanation of the present utility model, and it is not a limitation of the present utility model. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as it is within the scope of the claims of the present utility model, it shall be protected by the patent law.

[0023] Example: Figure 1 and Figure 2 As shown, a valve plate grinding tool comprises: a base 1, side frames 2 arranged on both sides of the base 1, a flip bracket 3 arranged between the two side frames 2, a rotating motor 4 driving the flip bracket 3 to rotate, and a clamping mechanism 5 arranged on the flip bracket 3.

[0024] Lifting seats 6 are provided at both ends of the flip bracket 3. The lifting seats 6 are movably installed on the side frame 2 through a slide groove. A lifting mechanism 7 for driving the lifting seat 6 to move up and down is provided on the bracket. The lifting mechanism 7 includes a screw rod 702 rotatably installed on the side frame 2 and a driving motor 701 for driving the screw rod 702 to rotate. The screw rod 702 is connected to the lifting seat 6 through threaded cooperation. The lifting mechanism 7 at both ends of the flip bracket 3 drives the flip bracket 3 to move up and down, thereby adjusting the height of the valve plate to be polished.

[0025] like Figure 1 and Figure 5 As shown, a grinding cavity 301 is provided in the middle of the flip bracket 3, and the clamping mechanism 5 includes two groups of clamping components, which are respectively arranged on both sides of the grinding cavity 301. The clamping components include pneumatic fingers 501 and clamping blocks 502 installed on the pneumatic fingers 501, and the valve plate to be polished is clamped by the pneumatic fingers 501 and the clamping blocks 502. In other embodiments, the number of the clamping mechanisms 5 is three to four groups, which are distributed around the valve plate in the front, back, left and right directions.

[0026] A positioning mechanism 8 is arranged between the flip bracket 3 and the lifting seat 6, and the positioning mechanism 8 includes a first positioning plate 801 fixed to the end of the flip bracket 3, an elastic positioning column 803 arranged on the first positioning plate 801, a second positioning plate 802 arranged on one side of the first positioning plate 801 and movably arranged on the lifting seat 6, a positioning hole 804 arranged on the second positioning plate 802, and a driving mechanism for driving the second positioning plate 802 to move forward and backward relative to the first positioning plate 801.

[0027] The second positioning plate 802 is provided with a guide post 808 , which is inserted into the insertion hole 601 on the lifting seat 6 , so that the second positioning plate 802 can move forward and backward relative to the first positioning plate 801 .

[0028] There are two groups of elastic positioning columns 803 symmetrically distributed along the radial direction of the first positioning plate 801 . Similarly, there are two positioning holes 804 distributed at 180°.

[0029] like Figure 4 As shown, the elastic positioning column 803 includes a fixed sleeve 8031 ​​fixed on the first positioning plate 801, a movable push rod 8032 movably arranged in the fixed sleeve 8031, and a pressure spring 8033 connected between the fixed sleeve 8031 ​​and the movable push rod 8032. The aperture of the positioning hole 804 is larger than the diameter of the movable push rod 8032 and smaller than the diameter of the fixed sleeve 8031.

[0030] One end of the movable push rod 8032 facing the second positioning plate 802 is in a dome structure, which reduces the friction between the movable push rod 8032 and the surface of the second positioning plate 802.

[0031] like Figure 3 As shown, the driving mechanism includes an electromagnet 805 fixed on the lifting seat 6 and a return spring 807 connected between the lifting seat 6 and the second positioning plate 802. The second positioning plate 802 is provided with a magnetic sheet 806 corresponding to the electromagnet 805. The magnetic sheet 806 is made of an iron sheet. The return spring 807 is sleeved on the outside of the guide column 808.

[0032] When the electromagnet 805 is energized, the electromagnet 805 attracts the magnetic sheet 806, so that the second positioning disk 802 moves away from the first positioning disk 801, and the elastic positioning column 803 disengages from the positioning hole 804; when the electromagnet 805 is powered off, the magnetic sheet 806 disengages from the electromagnet 805, and the second positioning disk 802 approaches the first positioning disk 801 under the elastic force of the reset spring 807, so that the elastic positioning column 803 is pressed against the second positioning disk 802, and at the same time, the rotating motor 4 runs and drives the flip bracket 3 to rotate 180°. At this time, the movable push rod 8032 of the elastic positioning column 803 extends into the positioning hole 804 under the elastic force of the reset spring 807, so as to fix the flip bracket 3, thereby facilitating the grinding of the front and back sides of the valve plate.

Claims

1. A valve plate grinding tool, comprising: A base (1), side frames (2) arranged on both sides of the base (1), a flip bracket (3) arranged between the two side frames (2), a rotating motor (4) for driving the flip bracket (3) to rotate, and a clamping mechanism (5) arranged on the flip bracket (3), characterized in that lifting seats (6) are arranged at both ends of the flip bracket (3), and a lifting mechanism (7) for driving the lifting seat (6) to move up and down is arranged on the bracket; a positioning mechanism (8) is arranged between the flip bracket (3) and the lifting seat (6), and the positioning mechanism (8) comprises a first positioning plate (801) fixed to the end of the flip bracket (3), an elastic positioning column (803) arranged on the first positioning plate (801), a second positioning plate (802) arranged on one side of the first positioning plate (801) and movably arranged on the lifting seat (6), a positioning hole (804) arranged on the second positioning plate (802), and a driving mechanism for driving the second positioning plate (802) to move forward and backward relative to the first positioning plate (801).

2. A valve plate grinding tool according to claim 1, characterized in that: The driving mechanism comprises an electromagnet (805) fixed on the lifting seat (6) and a return spring (807) connected between the lifting seat (6) and the second positioning plate (802); the second positioning plate (802) is provided with a magnetic attraction sheet (806) corresponding to the electromagnet (805).

3. A valve plate grinding tool according to claim 2, characterized in that: A guide column (808) is provided on the second positioning plate (802), the guide column (808) is inserted on the lifting seat (6), and the return spring (807) is sleeved on the outside of the guide column (808).

4. The valve plate grinding tool according to claim 1, characterized in that: The elastic positioning column (803) comprises a fixed sleeve (8031) fixed on the first positioning plate (801), a movable push rod (8032) movably arranged in the fixed sleeve (8031), and a pressure spring (8033) connected between the fixed sleeve (8031) and the movable push rod (8032); the aperture of the positioning hole (804) is larger than the diameter of the movable push rod (8032) and smaller than the diameter of the fixed sleeve (8031).

5. The valve plate grinding tool according to claim 4, characterized in that: One end of the movable push rod (8032) facing the second positioning plate (802) is in a dome structure.

6. A valve plate grinding tool according to claim 5, characterized in that: The elastic positioning columns (803) are provided in two groups and are symmetrically distributed along the radial direction of the first positioning plate (801).

7. The valve plate grinding tool according to claim 1, characterized in that: A grinding cavity (301) is provided in the middle of the flip bracket (3), and the clamping mechanism (5) comprises two groups of clamping components, and the two groups of clamping components are respectively arranged on both sides of the grinding cavity (301).

8. The valve plate grinding tool according to claim 7, characterized in that: The clamping assembly comprises a pneumatic finger (501) and a clamping block (502) mounted on the pneumatic finger (501).

9. The valve plate grinding tool according to claim 1, characterized in that: The lifting mechanism (7) comprises a screw rod (702) rotatably mounted on the side frame (2) and a driving motor (701) driving the screw rod (702) to rotate; the screw rod (702) is connected to the lifting seat (6) via a threaded connection.

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