CN218836942U - Tool for positioning valve rod - Google Patents

Abstract

The utility model discloses a frock for positioning valve rod, its technical scheme main points are including can external bottom plate on the workstation, locating piece and a positioning bolt of being located on the bottom plate, an internal diameter and main part diameter assorted locating hole, a perpendicular to locating hole length direction are seted up to the locating piece and the drilling that runs through the locating piece and the screw hole of a perpendicular to locating hole length direction, drilling and screw hole all communicate with the locating hole, positioning bolt and screw hole threaded connection, it has one can with the head end outline local match prevent the transposition seat to peg graft on the inner wall of locating hole, makes positioning bolt's tip and the outer wall top of main part touch through rotating positioning bolt, has solved among the prior art valve rod and has removed easily or rotate and cause the poor problem of through-hole precision in the course of working.

Description

Tool for positioning valve rod

Technical Field

The utility model relates to a valve rod processing field, more specifically the frock that relates to a be used for fixing a position the valve rod that says so.

Background

The valve rod is the important part of valve, be used for the transmission, connect actuating mechanism or handle, following direct drive case removes or rotates, in order to realize valve switch or regulating action, the part that the valve rod is connected with the case need be seted up out the through-hole so that plug connectors such as round pin axle insert in the through-hole and can make the valve rod link together with the case, through-hole on the valve rod adopts drilling machine drilling gained more, but the plane that the drilling machine supplied the valve rod to place does not have the mechanism that is used for supplementary valve rod location, because of two tip of valve rod all are non-cylindric and valve rod main part and be cylindricly, so can cause the valve rod to take place to remove when being bored or rotate and cause the phenomenon that the through-hole precision is poor, there is the potential safety hazard simultaneously still.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a frock that can assist the valve rod location.

In order to achieve the above purpose, the utility model provides a following technical scheme: a tool for positioning a valve rod is provided with the valve rod, wherein the valve rod comprises a cylindrical main body, a head end and a tail end, the outline dimension of the head end is smaller than the outline dimension of the end face of the main body and is coaxially arranged with the main body, the outline dimension of the head end is larger than the outline dimension of the end face of the main body, the head end and the tail end are both polygonal bodies and are respectively positioned on two end faces of the main body, the tool comprises a bottom plate, a positioning block and a positioning bolt, the bottom plate can be externally connected onto a workbench, the positioning block is positioned on the bottom plate, the positioning block is provided with a positioning hole, the inner diameter of the positioning hole is matched with the diameter of the main body, a drilling hole is perpendicular to the length direction of the positioning hole and penetrates through the positioning block, the drilling hole and the threaded hole are communicated with the positioning hole, the positioning bolt is in threaded connection with the threaded hole, an anti-rotation seat capable of being partially matched with the outline of the head end is inserted into the inner wall of the positioning hole, and the end of the positioning bolt is in abutting contact with the outer wall of the main body by rotating the positioning bolt.

As a further improvement, the hole wall of the positioning hole is provided with two burr grooves which are all positioned in the same plane with the drilling hole.

As a further improvement of the present invention, the positioning hole and the drilled hole are parallel to each other and are all located in the length direction of the positioning hole.

As a further improvement, the drill hole is internally provided with a wear-resistant drill bushing.

As a further improvement of the utility model, the tail end is sleeved with an auxiliary block which can limit the rotation of the tail end.

The utility model has the advantages that: peg graft the valve rod in the locating piece, prevent that swivel mount and head end are pegged graft and are made the unable relative positioning piece of valve rod rotate together, utilize positioning bolt and valve rod outer wall top to touch and make the valve rod be located the locating piece, utilize the drill bit to pass the drill hole on the locating piece and drill the valve rod, so the design is compared prior art and can be ensured that the valve rod is processed with fixed gesture, the valve rod of processing out is unified specification, the defect of the unable accurate positioning of prior art valve rod has been remedied, the accuracy of processing is improved, safety and reliability.

Drawings

FIG. 1 is a three-dimensional exploded view of the present invention and a valve stem;

fig. 2 is an assembly schematic view of the anti-rotation seat and the valve rod of the present invention.

Reference numerals are as follows: 1. a base plate; 2. positioning blocks; 3. positioning the bolt; 4. positioning holes; 5. drilling; 6. a threaded hole; 7. preventing the rotation of the base; 8. a burr groove; 9. drilling a sleeve; 10. and an auxiliary block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals.

Referring to fig. 1 and 2, a tool for positioning a valve rod of the present embodiment includes a bottom plate 1, a positioning block 2 and a positioning bolt 3, the positioning block 2 has a rectangular outer contour, a positioning hole 4 is formed in an end surface perpendicular to a length direction of the positioning block 2, the positioning hole 4 penetrates through the positioning block 2, a drill hole 5 and a threaded hole 6 are formed in an upper surface of the positioning block 2, an inner diameter of the drill hole 5 is larger than a diameter of a drill bit, the drill hole 5 and the threaded hole 6 are both located in a vertical plane where an axis of the positioning hole 4 is located, the drill hole 5 and the threaded hole 6 are parallel to each other and are both communicated with the positioning hole 4, the drill hole 5 penetrates through the positioning block 2, the drill hole 5 is divided into an upper section and a lower section by the positioning hole 4, the positioning bolt 3 is threadedly connected in the threaded hole 6, a mounting groove communicated with the positioning hole 4 is formed in a bottom surface of the positioning block 2, the anti-rotation seat 7 is made of a sheet body provided with a groove, the outline of the groove is matched with the local outline of the head end, the anti-rotation seat 7 is inserted into the installation groove, the bottom surface of the positioning block 2 is attached to the bottom plate 1, the positioning block 2 can be positioned on the bottom plate 1 in a bolt fastening or welding mode, the anti-rotation seat 7 is limited in the positioning block 2, the valve rod to be processed comprises a cylindrical main body, a head end and a tail end, the outline size of the head end is smaller than the outline size of the end face of the main body and is coaxially arranged with the main body, the outline size of the tail end is larger than the outline size of the end face of the main body and is coaxially arranged with the main body, the head end and the tail end are both polygonal bodies and are respectively positioned on the two end faces of the main body, and the diameter of the main body is matched with the inner diameter of the positioning hole 4;

in the machining process, the base plate 1 is positioned on a workbench of a drilling machine, so that a drill hole 5 and a drill bit of the drilling machine are coaxially arranged, a head end and a main body are inserted into a positioning hole 4, the head end is moved to the position of an anti-rotation seat 7 to be abutted, the head end is rotated to the position capable of penetrating through the anti-rotation seat 7 by rotating the tail end, a valve rod is continuously moved into a positioning block 2 until the end surface of the tail end is attached to the end surface of the positioning block 2, the head end is inserted into the anti-rotation seat 7 in place, a wrench is used for rotating the positioning bolt 3 to move into the positioning hole 4 until the end part of the positioning bolt 3 is abutted to the outer wall of the main body, the positioning bolt 3 is stopped to be rotated, the drilling machine is started, the drill bit penetrates through the drill hole 5 above and drills into the valve rod until the drill bit penetrates through the valve rod and enters the drill hole 5 below, the drilling hole is finished, the drill bit exits from the positioning block 2 and is stopped, and finally the positioning bolt 3 is screwed upwards, and the machined valve rod is taken out;

compared with the prior art, the valve rod can be machined in a fixed posture by the aid of the design, the machined valve rod is of a uniform specification, the defect that the valve rod cannot be accurately positioned in the prior art is overcome, machining accuracy is improved, and the valve rod machining device is safe and reliable.

As a modified embodiment, the valve rod can move the difficulty because of the burr that the drilling produced relatively positioning piece 2, the dismantlement of the valve rod of being not convenient for, for solving this problem, refer to figure 1 and show, set up two burr grooves 8 with two sections drilling 5 intercommunications that distribute from top to bottom respectively on the pore wall of locating hole 4, the width in burr groove 8 is greater than the diameter of drill bit, the design can provide the space for the burr that produces on the valve rod like this, the burr can't be scraped with locating hole 4 inner wall, the dismantlement of the valve rod of being convenient for.

As an improved specific implementation manner, when the drill bit rotates, a trace amount of eccentric motion, which can be called as whipping, exists at the end of the drill bit facing the valve body, which can cause the problem that the inner diameters of holes drilled by the valve rod are different, in order to solve the problem, referring to fig. 1, the drill sleeve 9 is made by adopting a high-temperature quenching process, which has good hardness and wear resistance, and the drill sleeve 9 can be positioned in the drill hole 5 in a clamping manner, so that the design can assist the drill bit to keep a vertical downward state, slow down the whipping degree of the drill bit, indirectly improve the precision of the hole on the valve rod, simultaneously avoid the abrasion between the drill bit and the drill hole 5, and prolong the service life of the positioning block 2.

As an improved specific embodiment, referring to fig. 1 and 2, the valve rod clamping device further comprises an auxiliary block 10 which can be sleeved outside the tail end and can limit the rotation of the tail end, the auxiliary block 10 is provided with a through hole matched with the outline of the tail end, the auxiliary block 10 can be positioned on the bottom plate 1 or a workbench of a drilling machine, during the process of clamping the valve rod, the tail end is inserted into the auxiliary block 10, the valve rod cannot rotate relative to the auxiliary block 10, the head end can be inserted into the rotation-preventing seat 7 smoothly, then the auxiliary block 10 is positioned on the bottom plate 1 or the workbench, the auxiliary block 10 is pushed along the positioning hole 4 to enable the valve rod to gradually enter the positioning hole 4 until the tail end is in contact with the end face of the positioning block 2, and the valve rod is installed in place, so that the valve rod can be fixed and cannot rotate before entering the positioning block 2, the subsequent head end is matched with the rotation-preventing seat 7 conveniently, the operation that the first embodiment needs to rotate and adjust after entering the positioning block 2 is simplified, and the valve rod installation efficiency is improved; meanwhile, the anti-rotation seat 7 and the auxiliary block 10 are used for double positioning of the valve rod, and the connection stability of the valve rod is further improved.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (5)

1. The utility model provides a frock for fixing a position valve rod, its valve rod that is equipped with, the valve rod is including being cylindric main part, an overall dimension be less than main part terminal surface overall dimension and with the head end of the coaxial setting of main part and an overall dimension be greater than main part terminal surface overall dimension and with the tail end of the coaxial setting of main part, head end and tail end are multilateral physique and are located two terminal surfaces of main part respectively, its characterized in that: the positioning device comprises a base plate (1) which can be externally connected to a workbench, a positioning block (2) and a positioning bolt (3), wherein the positioning block (2) is positioned on the base plate (1), the positioning block (4) is provided with a positioning hole (4) with the inner diameter matched with the diameter of a main body, a drilling hole (5) which is perpendicular to the length direction of the positioning hole (4) and penetrates through the positioning block (2), and a threaded hole (6) which is perpendicular to the length direction of the positioning hole (4), the drilling hole (5) and the threaded hole (6) are communicated with the positioning hole (4), the positioning bolt (3) is in threaded connection with the threaded hole (6), an anti-rotation seat (7) which can be partially matched with the outline of a head end is inserted into the inner wall of the positioning hole (4), and the end part of the positioning bolt (3) is in top contact with the outer wall of the main body by rotating the positioning bolt (3).

2. The tool for positioning the valve rod as claimed in claim 1, wherein: and the hole wall of the positioning hole (4) is provided with two burr grooves (8) which are positioned in the same plane with the drilling hole (5).

3. A tool for positioning a valve stem according to claim 1 or 2, wherein: the positioning hole (4) and the drilling hole (5) are parallel to each other and are located in the length direction of the positioning hole (4).

4. A tool for positioning a valve stem according to claim 1 or 2, wherein: and a wear-resistant drill bushing (9) is arranged in the drill hole (5).

5. A tool for positioning a valve stem according to claim 1 or 2, wherein: also comprises an auxiliary block (10) which can be sleeved outside the tail end and can limit the rotation of the tail end.

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