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CN-224223286-U - Clamp for valve seat machining

CN224223286UCN 224223286 UCN224223286 UCN 224223286UCN-224223286-U

Abstract

The utility model relates to the technical field of clamps, in particular to a clamp for valve seat machining, which comprises a workbench, wherein the bottom of the workbench is fixed at the top of an installation seat through a fixing seat, the installation seat is fixed on machining equipment, four through grooves are formed in the edge of the top of the workbench, the four through grooves are arranged in a cross shape, connecting blocks are connected in the through grooves in a sliding manner, two ends of each connecting block extend to the outside of the through groove, clamping blocks are arranged at the top of each connecting block, connecting rods are connected at the bottom of each connecting block in a rotating manner, and a containing cavity is formed in each fixing seat. According to the utility model, the rotating shaft can be driven to rotate under the action of the worm wheel through rotating the worm, so that the synchronous belt can drive the rotating disc to rotate, and further four connecting rods can be driven to synchronously move, the connecting rods drive the clamping blocks to clamp and fix the valve seat through the connecting blocks, and the valve seat can be synchronously positioned in the clamping process, so that the use effect is improved.

Inventors

  • Su Mingfan
  • GU HAILIN
  • ZHANG FAN
  • ZHANG LIYA

Assignees

  • 埃威(南通)阀门配件有限公司

Dates

Publication Date
20260512
Application Date
20250407

Claims (7)

  1. 1. The clamp for machining the valve seat comprises a workbench (5) and is characterized in that the bottom of the workbench (5) is fixed at the top of a mounting seat (1) through a fixing seat (2), and the mounting seat (1) is fixed on machining equipment; Four through grooves (4) are formed in the top edge of the workbench (5), the four through grooves (4) are arranged in a cross shape, connecting blocks (8) are slidably connected in the through grooves (4), two ends of each connecting block (8) extend to the outer parts of the through grooves (4), and clamping blocks (3) are mounted at the top of each connecting block (8); The bottom of each connecting block (8) is rotationally connected with a connecting rod (11), a containing cavity (21) is formed in each fixing seat (2), and the connecting rods (11) are positioned in the containing cavities (21); The top end of the inside of the accommodating cavity (21) is rotationally connected with a rotating shaft (12), the side surface of the rotating shaft (12) is provided with a rotating disc (13), the other end of each connecting rod (11) is rotationally connected with the top of the rotating disc (13), the bottom of the rotating shaft (12) is also provided with a worm wheel (15), the inside of the accommodating cavity (21) is rotationally connected with a worm (7), and one side of the worm (7) is meshed with the worm wheel (15); the inside air conveying pump (19) that is equipped with of holding chamber (21), the inlet end of air conveying pump (19) is connected with intake pipe (9), the one end of intake pipe (9) is fixed on holding chamber (21) lateral wall and is stretched to fixing base (2) outside, the end of giving vent to anger of air conveying pump (19) is connected with gas-supply pipe (18), the other end of gas-supply pipe (18) is fixed in annular pipe (16) side, and annular pipe (16) are fixed on holding chamber (21) lateral wall through the pipeline support, a plurality of pairs of blast pipes (17) are installed to annular pipe (16) internal surface, every pair of blast pipe (17) all is located corresponding logical groove (4) both sides, and exhaust hole (14) have all been seted up to every pair of blast pipe (17) close face.
  2. 2. A clamp for valve seat machining according to claim 1, wherein one end of the worm (7) extends to the outside of the fixed seat (2), and a rotating handle (6) is connected to the end of the worm (7).
  3. 3. A clamp for valve seat machining according to claim 1, wherein guide rods (10) are mounted in the interior of each through groove (4), and each guide rod (10) slides through a corresponding connecting block (8).
  4. 4. A clamp for valve seat machining according to claim 1, wherein a gap exists between the exhaust pipe (17) and the connecting block (8) and the connecting rod (11).
  5. 5. A clamp for valve seat machining according to claim 4, wherein the vent hole (14) is provided obliquely upward, and the vent hole (14) is directed toward the inside of the through groove (4).
  6. 6. A clamp for valve seat machining according to claim 1, wherein the side surface of the fixing seat (2) is provided with a dust cover (20), and the dust cover (20) is sleeved on the end part of the air inlet pipe (9).
  7. 7. A clamp for valve seat machining according to claim 1, wherein the outer surface of each connecting block (8) is provided with a buffer rubber.

Description

Clamp for valve seat machining Technical Field The utility model relates to the technical field of clamps, in particular to a clamp for machining a valve seat. Background The ball valve seat is a core sealing part of the ball valve and is matched with the ball body to form a sealing structure for controlling medium flow and preventing leakage, and the valve seat is clamped and fixed by a clamp during machining. The existing clamp for machining the valve seat generally drives the clamping block to clamp the valve seat through the transmission of an air cylinder or a screw rod. But when the centre gripping, the clamp splice only can be fixed the disk seat centre gripping to can not fix a position the disk seat in step, need fix a position through adjustment mechanism, result of use is poor, and in the course of working, the disk seat can produce the piece by processing, and these pieces can adhere on cylinder surface or lead screw surface, and anchor clamps cylinder or lead screw's wearing and tearing, dustproof effect is poor. To this end, we propose a clamp for valve seat machining. Disclosure of utility model The utility model aims to solve the defects in the prior art and provides a clamp for valve seat machining. In order to achieve the aim, the utility model adopts the following technical scheme that the clamp for valve seat machining comprises a workbench, wherein the bottom of the workbench is fixed at the top of an installation seat through a fixed seat, and the installation seat is fixed on machining equipment; Four through grooves are formed in the edge of the top of the workbench, the four through grooves are arranged in a cross shape, connecting blocks are slidably connected in the through grooves, two ends of each connecting block extend to the outside of the through groove, and clamping blocks are mounted at the top of each connecting block; The bottom of each connecting block is rotationally connected with a connecting rod, a containing cavity is formed in each fixing seat, and the connecting rods are positioned in the containing cavities; The top end of the inside of the accommodating cavity is rotationally connected with a rotating shaft, the side surface of the rotating shaft is provided with a rotating disc, the other end of each connecting rod is rotationally connected with the top of the rotating disc, the bottom of the rotating shaft is also provided with a worm wheel, the inside of the accommodating cavity is rotationally connected with a worm, and one side of the worm is meshed with the worm wheel; The inside gas transmission pump that is equipped with of holding the chamber, the inlet end of gas transmission pump is connected with the intake pipe, and the one end of intake pipe is fixed on holding the chamber lateral wall and is stretched to the fixing base outside, and the end of giving vent to anger of gas transmission pump is connected with the gas transmission pipe, and the other end of gas transmission pipe is fixed in the annular pipe side, and the annular pipe passes through the pipe support to be fixed on holding the chamber lateral wall, and annular pipe internal surface installs a plurality of pairs of blast pipes, and every pair of blast pipe all is located corresponding logical groove both sides, and every has all seted up the exhaust hole to the close face of blast pipe. Preferably, one end of the worm extends to the outside of the fixed seat, and a rotating handle is connected to the end of the worm. Preferably, guide rods are mounted in the through grooves, and each guide rod penetrates through the corresponding connecting block in a sliding mode. Preferably, a space exists between the exhaust pipe and the connecting block and between the exhaust pipe and the connecting rod. Preferably, the exhaust hole is arranged obliquely upwards, and the direction of the exhaust hole faces the inside of the through groove. Preferably, the side face of the fixing seat is provided with a dust cover, and the dust cover is sleeved at the end part of the air inlet pipe. Preferably, the outer surface of each connection block is mounted with a buffer rubber. The design scheme provided by the utility model has the beneficial effects that in the application process: 1. The rotating shaft can be driven to rotate under the action of the worm wheel through the rotating worm, the synchronous belt can drive the rotating disc to rotate, four connecting rods can be driven to synchronously move, the connecting rods drive the clamping blocks to clamp and fix the valve seat through the connecting blocks, the valve seat can be synchronously positioned in the clamping process, and the use effect is improved. 2. External air can be conveyed into the annular pipe through the air conveying pump and the air conveying pipe, and then discharged into the through groove through the exhaust hole on the exhaust pipe, and discharged from the through groove, chips generated in the valve seat machining process can