Valve flange grinding device for valve machining

Abstract

The valve flange grinding device for valve machining comprises a grinding base, grinding assemblies are arranged at the two ends of the grinding base, and a fixing assembly and a limiting assembly are arranged in the middle of the grinding base. The upper fiber-reinforced resin grinding piece and the lower fiber-reinforced resin grinding piece are arranged to be matched with the rotating motor to drive the fixing base to rotate, so that a valve flange can pass through the two fiber-reinforced resin grinding pieces at different rotating speeds in sequence, and burrs on the surface of the flange can be better removed; through the fixed clamping rods rotated out of the clamping grooves, the flange pieces with through holes in the periphery and the flange pieces without the through holes can be placed in the grinding process; and through the arrangement of reset springs and extrusion blocks, when the limiting rods are close to the flange pieces, the multiple reset springs are compressed to different degrees, and the multiple extrusion blocks can be tightly attached to the outer sides of the flange pieces of different specifications and sizes.

Description

Technical Field

[0001] The invention relates to a flange grinding device, in particular to a valve flange grinding device for valve processing, belonging to the technical field of valve processing. Background Art

[0002] The valve flange is an important component used to connect the valve to the pipeline system or other equipment. However, generally, there will be burrs on the surface of the valve flange during production, which will cause gaps in the pipeline and cannot be put into use directly. Therefore, it is necessary to deburr the surface of the valve flange after processing.

[0003] After searching, Chinese patent number CN115870563A discloses a valve flange grinding device for valve processing. When the flange is just produced, two fixing plates are used to press the outer walls of the flange to clamp the flange. At this time, the fixing plate is rotated by starting the first motor, and the threaded rod on the outer wall of the fixing plate will scrape the outer wall of the flange to cut and grind the burrs on the flange. However, in the above patented product, the flange is fixed by screwing the threaded rod into the connecting hole on the flange to limit the position. In actual production, the specifications and sizes of the flange are different. When grinding it, it needs to be fixed. If it is not fixed properly, it will lead to low grinding efficiency. Summary of the invention

[0004] The object of the present invention is to provide a valve flange grinding device for valve processing in order to solve the above-mentioned problem.

[0005] The present invention achieves the above-mentioned purpose through the following technical scheme: a valve flange grinding device for valve processing, comprising a grinding base, grinding components are arranged at both ends of the grinding base, and a fixing component and a limit component are arranged in the middle of the grinding base;

[0006] The grinding assembly is used to grind the surface burrs of the valve flange, and the grinding assembly includes a first telescopic cylinder, a second telescopic cylinder, a lifting rod, a driving motor and a fiber-reinforced resin grinding sheet. The first telescopic cylinder and the second telescopic cylinder are respectively provided at both ends of the grinding base, and the execution ends of the first telescopic cylinder and the second telescopic cylinder are provided with lifting rods. The ends of the two lifting rods away from the first telescopic cylinder and the second telescopic cylinder are provided with driving motors, and the execution ends of the driving motors are provided with fiber-reinforced resin grinding sheets;

[0007] The fixing assembly and the limiting assembly are used together to fix and limit valve flanges of different specifications and sizes. The fixing assembly includes a fixing seat, a fixing rod, a slot, a fixing rod, a torsion spring, a docking slot, a connecting rod, a pressing rod, a movable slot, a first return spring, an iron sheet and a magnet. A fixing seat is provided at the middle position of the grinding base and on one side close to the fiber reinforced resin grinding sheet, fixing rods are provided on both sides of the fixing seat, a slot is provided at the top of the two fixing rods, a fixing rod is provided at one end inside the slot, a torsion spring is provided between the bottom end of the fixing rod and the slot, a docking slot is provided at one side of the fixing rod away from one end of the torsion spring, a connecting rod is provided at the top of the slot and on the side away from the torsion spring, a pressing rod is provided at the bottom end of the connecting rod, a movable slot is provided on one side of the bottom end of the fixing rod, a plurality of first return springs are provided at the bottom end of the pressing rod, an iron sheet is provided at the top of the connecting rod, and a magnet is provided inside the docking slot;

[0008] The limit assembly includes a limit block, a limit rod, a vertical plate, a second return spring and an extrusion block. A limit block is provided on the side of the fixed seat away from the grinding base, limit rods are provided at both ends of the limit block on the side close to the fixed seat, a vertical plate is provided at the top of the limit rod, a plurality of second return springs are provided on the opposite side of the two vertical plates, and an extrusion block is provided on the end of the second return spring away from the vertical plate.

[0009] Preferably, a cross bar is provided between the fixing seat and the two ends of the bottom of the limiting block.

[0010] Preferably, when the fixed clamping rod is located inside the clamping slot, the connecting rod is connected to the docking slot.

[0011] Preferably, the movable groove is arranged on one side opposite to the two fixing rods and located at the bottom end of the pressing rod, and the first return spring is arranged inside the movable groove.

[0012] Preferably, an actuator motor is provided at one end of the fixing seat, an adjustment slot is provided on a side of the fixing seat away from the grinding base, a first bidirectional screw rod is provided inside the adjustment slot, and adjustment blocks are provided at both ends of the first bidirectional screw rod.

[0013] Preferably, a forward and reverse motor is provided at one end of the limit block, a second bidirectional screw rod is provided at the execution end of the forward and reverse motor, and threaded blocks are provided at both ends of the second bidirectional screw rod.

[0014] Preferably, the threaded block is connected to the second bidirectional screw rod and nut, the adjusting block is connected to the first bidirectional screw rod and nut, the threaded block is fixedly connected to the limiting rod, and the adjusting block is fixedly connected to the fixing rod.

[0015] Preferably, the two limiting rods are arranged on the outside of the fixing rod, and the extrusion block is arranged on a side of the limiting rod close to the fixing rod.

[0016] Preferably, lifting grooves are provided at the upper and lower ends of the grinding base and at one side close to the fiber-reinforced resin grinding sheet.

[0017] Preferably, a turntable is provided between the middle of the grinding base and the fixed seat, and a rotating motor is provided at one end of the turntable away from the fixed seat.

[0018] The present invention has the following beneficial effects:

[0019] 1. By setting the upper and lower fiber-reinforced resin polishing discs and cooperating with the rotating motor to drive the rotation of the fixed seat, the valve flange can pass through two fiber-reinforced resin polishing discs with different rotation speeds in sequence, so that the burrs on the flange surface can be better removed;

[0020] 2. The resin binder can better fix the abrasive, and the abrasive is less likely to fall off, which reduces the amount of dust generated during the grinding process; the fiber-reinforced resin grinding sheet can maintain a relatively stable grinding state and reduce additional dust caused by loose abrasives and other reasons;

[0021] 3. By rotating the fixed clamping rod out of the clamping slot, it can better meet the placement of flanges with through holes and flanges without through holes during grinding;

[0022] 4. Through the arrangement of the reset spring and the extrusion block, when the limit rod approaches the flange, the multiple reset springs are compressed to different degrees, so that the multiple extrusion blocks can be closely attached to the outer sides of flanges of different specifications and sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of the overall structure of a valve flange grinding device for valve processing proposed by the present invention;

[0024] Figure 2 A three-dimensional diagram of the overall structure of a valve flange grinding device for valve processing proposed by the present invention;

[0025] Figure 3 A three-dimensional diagram of the structure of a fixing assembly and a limiting assembly of a valve flange grinding device for valve processing proposed by the present invention;

[0026] Figure 4 A three-dimensional diagram of the structure of a grinding assembly of a valve flange grinding device for valve processing proposed by the present invention;

[0027] Figure 5 A three-dimensional diagram of the structure of a fixing assembly and a limiting assembly of a valve flange grinding device for valve processing proposed by the present invention;

[0028] Figure 6 A three-dimensional diagram of the structure of a fixing assembly and a limiting assembly of a valve flange grinding device for valve processing proposed by the present invention;

[0029] Figure 7 This is a three-dimensional diagram of the structure of the fixing components of a valve flange grinding device for valve processing proposed by the present invention.

[0030] In the figure: 1. grinding base; 2. grinding assembly; 201. first telescopic cylinder; 202. second telescopic cylinder; 203. lifting rod; 204. driving motor; 205. fiber-reinforced resin grinding sheet; 206. lifting slot; 3. fixing assembly; 301. fixing seat; 302. adjusting slot; 303. executing motor; 304. first bidirectional screw rod; 305. adjusting block; 306. fixing rod; 307. slot; 308. fixing rod; 309. Torsion spring; 310, docking groove; 311, connecting rod; 312, push rod; 313, movable groove; 314, first return spring; 315, iron sheet; 316, magnet; 4, limit assembly; 401, limit block; 402, forward and reverse motor; 403, second bidirectional screw rod; 404, threaded block; 405, limit rod; 406, vertical plate; 407, second return spring; 408, extrusion block; 5, rotating motor; 501, turntable; 6, cross bar. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Embodiment 1:

[0033] Reference Figure 1-3 as well as Figure 5-7 A valve flange grinding device for valve processing includes a grinding base 1, grinding components 2 are provided at both ends of the grinding base 1, and a fixing component 3 and a limiting component 4 are provided in the middle of the grinding base 1;

[0034] The grinding assembly 2 is used to grind the surface burrs of the valve flange. The grinding assembly 2 includes a first telescopic cylinder 201, a second telescopic cylinder 202, a lifting rod 203, a drive motor 204 and a fiber-reinforced resin grinding sheet 205. The first telescopic cylinder 201 and the second telescopic cylinder 202 are respectively provided at both ends of the grinding base 1. The execution ends of the first telescopic cylinder 201 and the second telescopic cylinder 202 are provided with a lifting rod 203. The ends of the two lifting rods 203 away from the first telescopic cylinder 201 and the second telescopic cylinder 202 are provided with a drive motor 204. The execution end of the drive motor 204 is provided with a fiber-reinforced resin grinding sheet 205.

[0035] A cross bar 6 is provided between the two ends of the bottom of the fixed seat 301 and the limit block 401. When the fixed clamping rod 308 is located inside the clamping groove 307, the connecting rod 311 is connected to the docking groove 310. The movable groove 313 is arranged on the opposite side of the two fixed rods 306 and is located at the bottom end of the pressing rod 312. The first return spring 314 is arranged inside the movable groove 313.

[0036] An actuator motor 303 is disposed at one end of the fixing seat 301 , an adjustment slot 302 is disposed on a side of the fixing seat 301 away from the grinding base 1 , a first bidirectional screw rod 304 is disposed inside the adjustment slot 302 , and adjustment blocks 305 are disposed at both ends of the first bidirectional screw rod 304 .

[0037] In this embodiment, it should be noted that: when the valve flange is produced, burrs may exist on the outer surface of the flange, and the burrs need to be cleaned before the flange is put into use.

[0038] The grinding base 1 can be installed on a wall in a fixed installation mode, or it can be installed on the end of a rotatable mechanical arm, in which case the mechanical arm can drive the grinding base 1 to flip.

[0039] When grinding the flange, first determine whether the fixing clamping rod 308 needs to be rotated out of the clamping groove 307 based on whether there is a through hole near the outer ring of the flange to be ground.

[0040] When the outer ring of the flange to be polished contains a through hole, the staff first inserts a finger into the slot 307 and pries the fixed clamping rod 308 upward to separate the magnet 316 inside the docking slot 310 on the fixed clamping rod 308 from the iron sheet 315 at the top of the connecting rod 311, so that the fixed clamping rod 38 is driven by the torsion spring 309 to be perpendicular to the slot 307. At this time, the fixed clamping rod 308 is vertically arranged inside the slot 307.

[0041] Align the through holes on both sides of the flange with the position of the fixing rod 308 so that the fixing rod 308 can perform preliminary positioning on the flange.

[0042] According to the flanges of different specifications and sizes, the distance between the two fixing rods 306, i.e., the two fixing clamping rods 308, can be adjusted. The execution motor 306 is started, driving the first bidirectional screw rod 304 to rotate, and the adjustment block 305 connected to the first bidirectional screw rod 304 moves closer to or farther from each other, so that the positions of the two fixing rods 306 can be adjusted.

[0043] After the through hole on the flange is aligned with the fixing clamp rod 308, the limiting assembly 4 is adjusted to fix the extrusion block 408 on both sides of the flange.

[0044] If there is no through hole on the flange to be polished, there is no need to rotate the fixing rod 308 out of the slot 307 , and the flange to be polished can be directly placed on the two fixing rods 306 .

[0045] Embodiment 2:

[0046] Different from the first embodiment, Figure 1-3 as well as Figure 5-6 , this embodiment also has the following further contents: the fixing component 3 and the limiting component 4 are used together to fix and limit valve flanges of different specifications and sizes, the fixing component 3 includes a fixing seat 301, a fixing rod 306, a clamping groove 307, a fixing clamping rod 308, a torsion spring 309, a docking groove 310, a connecting rod 311, a pressing rod 312, a movable groove 313, a first return spring 314, an iron sheet 315 and a magnet 316, a fixing seat 301 is provided at the middle position of the grinding base 1 and on one side close to the fiber reinforced resin grinding sheet 205, and fixing rods 306 are provided on both sides of the fixing seat 301, and two fixing rods 3 A slot 307 is provided at the top of 06, a fixed clamping rod 308 is provided at one end inside the slot 307, a torsion spring 309 is provided between the bottom end of the fixed clamping rod 308 and the slot 307, a docking slot 310 is provided on the side of the fixed clamping rod 308 away from one end of the torsion spring 309, a connecting rod 311 is provided at the top of the slot 307 and away from the torsion spring 309, a pressing rod 312 is provided at the bottom end of the connecting rod 311, a movable slot 313 is provided on one side of the bottom end of the fixed rod 306, a plurality of first return springs 314 are provided at the bottom end of the pressing rod 312, an iron sheet 315 is provided at the top of the connecting rod 311, and a magnet 316 is provided inside the docking slot 310.

[0047] One end of the limit block 401 is provided with a forward and reverse motor 402, and the execution end of the forward and reverse motor 402 is provided with a second bidirectional screw rod 403, and both ends of the second bidirectional screw rod 403 are provided with threaded blocks 404, the threaded block 404 is connected to the nut of the second bidirectional screw rod 403, the adjustment block 305 is connected to the nut of the first bidirectional screw rod 304, the threaded block 404 is fixedly connected to the limit rod 405, and the adjustment block 305 is fixedly connected to the fixing rod 306.

[0048] The two limiting rods 405 are arranged on the outside of the fixing rod 306 , and the extrusion block 408 is arranged on a side of the limiting rod 405 close to the fixing rod 306 .

[0049] In this embodiment, it should be noted that: when the flange to be polished is fixed above the two fixed rods 306, the forward and reverse motors 402 are started, driving the second bidirectional screw 403 to rotate, and the threaded blocks 404 connected to the nut of the second bidirectional screw 403 move closer to or away from each other, driving the limit rods 405 to move closer to and away from each other, so that the extrusion blocks 408 can be driven close to the outside of the flange placed above the fixed rods 306.

[0050] Since the valve flange is mostly circular in shape, when multiple extrusion blocks 408 are close to the outer ring of the flange, the multiple extrusion blocks 408 are subjected to different extrusion forces on the corresponding second return springs 407, so that the extrusion blocks 408 can better fit the outer ring of the flange to limit it.

[0051] The height of the vertical plate 406 and the extrusion block 408 in the device is less than the thickness of the conventionally produced flange, so during grinding, the fiber-reinforced resin grinding sheet 205 will not be disturbed by the vertical plate 406 and the extrusion block 408 .

[0052] Implementation three:

[0053] Reference Figure 1-4 Compared with the first embodiment and the second embodiment, in the present embodiment: the limiting assembly 4 includes a limiting block 401, a limiting rod 405, a vertical plate 406, a second return spring 407 and an extrusion block 408, a limiting block 401 is provided on the side of the fixed seat 301 away from the grinding base 1, limiting rods 405 are provided at both ends of the side of the limiting block 401 close to the fixed seat 301, a vertical plate 406 is provided at the top of the limiting rod 405, a plurality of second return springs 407 are provided on the opposite side of the two vertical plates 406, and an extrusion block 408 is provided on the end of the second return spring 407 away from the vertical plate 406.

[0054] Lifting slots 206 are provided at the upper and lower ends of the grinding base 1 and close to one side of the fiber-reinforced resin grinding disc 205 . A turntable 501 is provided between the middle of the grinding base 1 and the fixed seat 301 . A rotating motor 5 is provided at one end of the turntable 501 away from the fixed seat 301 .

[0055] In this embodiment, it should be noted that the fiber-reinforced resin polishing sheet 205 contains fiber-reinforced materials inside, and its structure is relatively compact and has good toughness. During polishing, it is not as easy to wear and break quickly as some ordinary polishing sheets, thereby generating a large amount of fine debris and dust. In addition, the resin binder can better fix the abrasive, and the abrasive is relatively less likely to fall off, so that the amount of dust generated during the polishing process can be reduced. For example, when polishing stainless steel flanges, the fiber-reinforced resin polishing sheet can maintain a relatively stable polishing state and reduce additional dust caused by loose abrasives and the like. Therefore, the fiber-reinforced resin polishing sheet 205 can reduce the generation of debris during polishing to a certain extent, thereby reducing environmental pollution.

[0056] Two fiber-reinforced resin polishing discs 205 are arranged at the upper and lower ends of the polishing base 1, and the rotation speeds of the two fiber-reinforced resin polishing discs 205 are different. When the flange is fixed and limited by the upper fiber-reinforced resin polishing disc 205, it can be turned over by the driving of the rotating motor 5 so that the surface just polished faces the other fiber-reinforced resin polishing disc 205 for secondary polishing, which can effectively remove burrs on the flange.

Claims

1. A valve flange grinding device for valve processing, comprising a grinding base (1), characterized in that: Grinding components (2) are provided at both ends of the grinding base (1), and a fixing component (3) and a limiting component (4) are provided in the middle of the grinding base (1); The grinding assembly (2) is used to grind burrs on the surface of the valve flange. The grinding assembly (2) comprises a first telescopic cylinder (201), a second telescopic cylinder (202), a lifting rod (203), a driving motor (204) and a fiber-reinforced resin grinding sheet (205). The first telescopic cylinder (201) and the second telescopic cylinder (202) are respectively provided at two ends of the grinding base (1). The lifting rod (203) is provided at the execution end of the first telescopic cylinder (201) and the second telescopic cylinder (202). The driving motor (204) is provided at one end of the two lifting rods (203) away from the first telescopic cylinder (201) and the second telescopic cylinder (202). The fiber-reinforced resin grinding sheet (205) is provided at the execution end of the driving motor (204). The fixing assembly (3) and the limiting assembly (4) are used together to fix and limit valve flanges of different specifications and sizes. The fixing assembly (3) comprises a fixing seat (301), a fixing rod (306), a slot (307), a fixing rod (308), a torsion spring (309), a docking groove (310), a connecting rod (311), a push rod (312), a movable groove (313), a first return spring (314), an iron sheet (315) and a magnet (316). A fixing seat (301) is provided at a middle position of the grinding base (1) and at a side close to the fiber-reinforced resin grinding sheet (205). Fixing rods (306) are provided on both sides of the fixing seat (301). The top ends of the two fixing rods (306) are provided with slots (307). A fixed card rod (308) is provided at one end of the slot (307), a torsion spring (309) is provided between the bottom end of the fixed card rod (308) and the slot (307), a docking groove (310) is provided on the side of the fixed card rod (308) away from one end of the torsion spring (309), a connecting rod (311) is provided at the top of the slot (307) and away from the torsion spring (309), a pressing rod (312) is provided at the bottom end of the connecting rod (311), a movable groove (313) is provided at one side of the bottom end of the fixed rod (306), a plurality of first return springs (314) are provided at the bottom end of the pressing rod (312), an iron sheet (315) is provided at the top end of the connecting rod (311), and a magnet (316) is provided inside the docking slot (310); The limiting assembly (4) comprises a limiting block (401), a limiting rod (405), a vertical plate (406), a second return spring (407) and an extrusion block (408); a limiting block (401) is provided on a side of the fixed seat (301) away from the grinding base (1); limiting rods (405) are provided at both ends of a side of the limiting block (401) close to the fixed seat (301); a vertical plate (406) is provided at the top end of the limiting rod (405); a plurality of second return springs (407) are provided on opposite sides of the two vertical plates (406); and an extrusion block (408) is provided on one end of the second return spring (407) away from the vertical plate (406).

2. A valve flange grinding device for valve processing according to claim 1, characterized in that: A cross bar (6) is provided between the two ends of the bottom of the fixing seat (301) and the limiting block (401).

3. A valve flange grinding device for valve processing according to claim 2, characterized in that: When the fixed clamping rod (308) is located inside the clamping groove (307), the connecting rod (311) is connected to the docking groove (310).

4. A valve flange grinding device for valve processing according to claim 3, characterized in that: The movable groove (313) is arranged on one side opposite to the two fixing rods (306) and is located at the bottom end of the pressing rod (312), and the first return spring (314) is arranged inside the movable groove (313).

5. The valve flange grinding device for valve processing according to claim 4, characterized in that: An actuator motor (303) is provided at one end of the fixed seat (301), an adjustment slot (302) is provided on a side of the fixed seat (301) away from the grinding base (1), a first bidirectional screw rod (304) is provided inside the adjustment slot (302), and adjustment blocks (305) are provided at both ends of the first bidirectional screw rod (304).

6. A valve flange grinding device for valve processing according to claim 5, characterized in that: A forward and reverse motor (402) is provided at one end of the limit block (401), a second bidirectional screw rod (403) is provided at the execution end of the forward and reverse motor (402), and threaded blocks (404) are provided at both ends of the second bidirectional screw rod (403).

7. A valve flange grinding device for valve processing according to claim 6, characterized in that: The threaded block (404) is connected to the nut of the second bidirectional screw rod (403), the adjusting block (305) is connected to the nut of the first bidirectional screw rod (304), the threaded block (404) is fixedly connected to the limiting rod (405), and the adjusting block (305) is fixedly connected to the fixing rod (306).

8. The valve flange grinding device for valve processing according to claim 1, characterized in that: The two limiting rods (405) are arranged on the outside of the fixing rod (306), and the extrusion block (408) is arranged on a side of the limiting rod (405) close to the fixing rod (306).

9. The valve flange grinding device for valve processing according to claim 1, characterized in that: Lifting grooves (206) are provided at the upper and lower ends of the grinding base (1) and on one side close to the fiber-reinforced resin grinding sheet (205).

10. The valve flange grinding device for valve processing according to claim 5, characterized in that: A rotating disk (501) is provided between the middle of the grinding base (1) and the fixed seat (301), and a rotating motor (5) is provided at one end of the rotating disk (501) away from the fixed seat (301).

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