CN212633118U - Metal part surface treatment hole plugging tool - Google Patents

Abstract

The utility model discloses a metal part surface treatment plug hole frock, include metal pipe fitting and set up the drilling on metal pipe fitting, the drilling embeds there is the cylinder, both sides open-ended accomodates groove and inner chamber have been seted up from inside to outside in proper order to the cylinder, the sealed sliding connection of inner chamber has the piston plate, the piston plate is kept away from one side coaxial rotation of accomodating the groove and is connected with the screw rod, the one end that the piston plate was kept away from to the screw rod runs through inner chamber and fixedly connected with torsion bar, the piston plate is close to the coaxial fixedly connected with telescopic link in one side of accomodating the groove. The utility model discloses a space between drilling and the cylinder is filled up to the tight bag that expands to produce certain frictional force, offset with the drilling inner wall through the rubber pad on two interior stay plates, produce great frictional force, can not be through drilling to its internal surface application at the in-process of application metal pipe fitting, and stability is high, and it is little influenced by the external world, because the utility model discloses itself has certain volume, and it is bulky that its specially adapted is metal pipe fitting.

Description

Metal part surface treatment hole plugging tool

Technical Field

The utility model relates to a part frock technical field especially relates to a metal part surface treatment plug hole frock.

Background

In order to improve the corrosion resistance of metal parts, the outer surface of the metal parts is usually coated to improve the quality of products, and in metal pipe fittings, holes are usually drilled in the outer wall of the pipe fitting to meet the shape requirement and the installation requirement of the pipe fitting. When a metal pipe fitting is coated, only the outer surface of the metal pipe fitting needs to be coated, but the inner surface of the metal pipe fitting does not need to be coated, and in order to avoid coating the inner surface of the metal pipe fitting through drilling holes unintentionally in the coating process, a tool which can be flexibly disassembled and assembled and is used for plugging the drilling holes is designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of proposing in the background art, and a metal part surface treatment stifled hole frock that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a hole blocking tool for surface treatment of metal parts comprises a metal pipe fitting and a drilling hole formed in the metal pipe fitting, wherein a cylinder is arranged in the drilling hole, a containing groove with two open sides and an inner cavity are sequentially formed in the cylinder from inside to outside, a piston plate is connected in the inner cavity in a sealing and sliding mode, one side, away from the containing groove, of the piston plate is coaxially and rotatably connected with a screw rod, one end, away from the piston plate, of the screw rod penetrates through the inner cavity and is fixedly connected with a torsion bar, one side, close to the containing groove, of the piston plate is coaxially and fixedly connected with a telescopic rod, one end, away from the piston plate, of the telescopic rod penetrates through the inner cavity and is in airtight sliding connection with the inner cavity, one end, extending to the containing groove, of the telescopic rod is fixedly connected with a pressing plate, two telescopic hinged elements are symmetrically arranged on one side of the pressing plate and one side, away from each, the outer surface of the column body is fixedly connected with an expansion bag in a sealing mode at a position corresponding to the inner cavity, and a communicating hole communicated with the expansion bag is formed in the inner wall of the sealing cavity.

Preferably, a screw hole in threaded connection with the screw rod is formed in the inner cavity.

Preferably, flexible articulated elements includes the linkage that two symmetries set up, the linkage comprises a plurality of end to end articulated connecting rod in proper order, two connecting rod middle parts that the position corresponds in the linkage are articulated, lie in the downside in two linkages two connecting rods respectively with accomodate the groove, support the clamp plate articulated, with support in the linkage that the clamp plate is connected the one end of connecting rod articulates there is the slider, set up on the interior fagging with slider sliding connection's spout, with accomodate in the linkage that the groove is connected the connecting rod is articulated with interior fagging.

Preferably, the sliding block and the sliding groove are both T-shaped.

Preferably, a rubber pad is fixed on one side of the inner supporting plate away from the telescopic hinged part in a gluing mode.

Preferably, the inner diameter of the cylinder is smaller than the inner diameter of the bore hole.

Compared with the prior art, this metal parts surface treatment plug hole frock's advantage lies in:

the utility model discloses a space between drilling and the cylinder is filled up to the tight bag that expands to produce certain frictional force, offset with the drilling inner wall through the rubber pad on two interior stay plates, produce great frictional force, can not be through drilling to its internal surface application at the in-process of application metal pipe fitting, and stability is high, and it is little influenced by the external world, because the utility model discloses itself has certain volume, and it is bulky that its specially adapted is metal pipe fitting.

Drawings

Fig. 1 is a schematic structural view of a hole plugging tool for surface treatment of a metal part according to the present invention;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure: 1 metal pipe fitting, 2 drilling holes, 3 cylinders, 4 inner cavities, 5 piston plates, 6 screw rods, 7 torsion bars, 8 communicating holes, 9 expansion bags, 10 expansion rods, 11 pressing plates, 12 accommodating grooves, 13 expansion articulated elements and 14 inner supporting plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a hole plugging tool for surface treatment of metal parts comprises a metal pipe 1 and a bore 2 formed on the metal pipe 1, wherein a cylinder 3 is arranged in the bore 2, specifically, the inner diameter of the cylinder 3 is smaller than that of the bore 2, the cylinder 3 is sequentially provided with a storage groove 12 and an inner cavity 4 with openings at two sides from inside to outside, a piston plate 5 is connected in the inner cavity 4 in a sealing and sliding manner, one side of the piston plate 5 far away from the storage groove 12 is coaxially and rotatably connected with a screw 6, one end of the screw 6 far away from the piston plate 5 penetrates through the inner cavity 4 and is fixedly connected with a torsion bar 7, one side of the piston plate 5 near the storage groove 12 is coaxially and fixedly connected with a telescopic rod 10, one end of the telescopic rod 10 far away from the piston plate 5 penetrates through the inner cavity 4 and is hermetically and slidably connected with the piston plate, one end of the telescopic rod 10 extending to the storage groove 12 is, one side that two flexible articulated elements 13 kept away from each other is connected with curved inner supporting plate 14, and one side that inner chamber 4 is close to accommodating groove 12 at piston plate 5 forms sealed chamber, and the sealed fixedly connected with tight bag 9 that expands on the surface of cylinder 3 and the corresponding position in inner chamber 4, the intercommunicating pore 8 with tight bag 9 intercommunication that expands is seted up to sealed intracavity wall.

The inner cavity 4 is internally provided with a screw hole in threaded connection with the screw rod 6, and the piston plate 5 can not move after the screw rod 6 stops rotating by adopting the threaded connection mode of the screw rod 6 and the screw hole.

The telescopic hinged part 13 comprises two symmetrically arranged connecting rod groups, each connecting rod group is composed of a plurality of connecting rods hinged end to end in sequence, the middle parts of the two connecting rods corresponding to the middle parts of the two connecting rods are hinged, the two connecting rods positioned at the lowest side in the two connecting rod groups are respectively hinged with the accommodating groove 12 and the pressing plate 11, one end of each connecting rod in the connecting rod group connected with the pressing plate 11 is hinged with a sliding block, a sliding groove connected with the sliding block in a sliding mode is formed in the inner supporting plate 14, the sliding block and the sliding groove are of a T shape, the connecting rod in the connecting rod group connected with the accommodating groove 12 is hinged with the inner supporting plate 14, and the distance between the two ends of the two connecting rod groups in the telescopic hinged part 13 can be increased along.

A rubber pad is glued and fixed on one side of the inner supporting plate 14, which is far away from the telescopic hinged part 13, so that the friction force between the inner supporting plate 14 and the inner wall of the drill hole 2 is increased, and the stability is improved.

When the utility model is not used, the piston plate 5 is far away from the accommodating groove 12, the expansion bag 9 is in a flat state, the pressing plate 11 is pressed against the inner wall of the accommodating groove 12 close to the inner cavity 4, and the telescopic articulated element 13 is contracted into the accommodating groove 12;

use the utility model discloses the time, arrange drilling 2 in with cylinder 3, turn knob screw rod 6 through torsion bar 7, the in-process at the precession screw drives piston plate 5 and holds 12 directions removal towards, on the one hand the air in the sealed intracavity passes through in the intercommunicating pore 8 gets into the tight bag 9 that expands and there is the space to fill up between cylinder 3 and drilling 2 completely until the tight bag 9 that expands, on the other hand drives telescopic link 10 and stretches out the sealed chamber, drive two interior fagging 14 back of the body motion mutually through flexible articulated elements 13, offset and can't continue to rotate screw rod 6 until rubber pad and 2 inner walls of drilling.

The utility model discloses a tight bag 9 that expands fills up the space between drilling 2 and the cylinder 3 to produce certain frictional force, offset with 2 inner walls of drilling through the rubber pad on two interior faggings 14, produce great frictional force, can not be through drilling 2 to its inner surface application at the in-process of application metal pipe fittings 1, and stability is high, receives external influence little, because the utility model discloses itself has certain volume, and it is bulky metal pipe fittings 1 of specially adapted.

It should be noted that the volume in the sealing cavity is much larger than the air volume required by the expansion bladder 9 for complete expansion, so that the piston plate 5 is always expanded before the expansion bladder 9 is expanded before the telescopic hinge 13 in the process of moving toward the accommodating groove 12, so that the inner supporting plate 14 abuts against the inner wall of the borehole 2, and the air has compressibility, so that the purpose is to avoid the situation that the expansion bladder 9 is not yet expanded, the inner supporting plate 14 abuts against the inner wall of the borehole 2, and the piston plate 5 cannot move continuously.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. A hole plugging tool for surface treatment of metal parts comprises a metal pipe fitting (1) and a drilling hole (2) formed in the metal pipe fitting (1), and is characterized in that a cylinder (3) is arranged in the drilling hole (2), the cylinder (3) is sequentially provided with an accommodating groove (12) and an inner cavity (4) with openings at two sides from inside to outside, a piston plate (5) is connected in the inner cavity (4) in a sealing and sliding manner, one side, far away from the accommodating groove (12), of the piston plate (5) is coaxially and rotatably connected with a screw rod (6), one end, far away from the piston plate (5), of the screw rod (6) penetrates through the inner cavity (4) and is fixedly connected with a torsion bar (7), one side, close to the accommodating groove (12), of the piston plate (5) is coaxially and fixedly connected with a telescopic rod (10), one end, far away from the piston plate (5), of the telescopic rod (10) penetrates, the telescopic link (10) extend to the one end fixedly connected with who accomodates groove (12) and support clamp plate (11), support clamp plate (11) and the one side symmetry of accomodating groove (12) and be equipped with two flexible articulated elements (13), one side that two flexible articulated elements (13) kept away from each other is connected with curved interior fagging (14), one side that inner chamber (4) are close to and accomodate groove (12) in piston plate (5) forms sealed chamber, the surface of cylinder (3) just sealed fixedly connected with bloated tight bag (9) on the corresponding position of inner chamber (4), sealed intracavity wall is seted up with intercommunicating pore (8) of bloated tight bag (9) intercommunication.

2. The tool for surface treatment and hole plugging of metal parts according to claim 1, wherein a screw hole in threaded connection with the screw rod (6) is formed in the inner cavity (4).

3. The tool for surface treatment and hole plugging of metal parts according to claim 1, wherein the telescopic hinge (13) comprises two symmetrically arranged linkage groups, each linkage group is composed of a plurality of connecting rods hinged end to end in sequence, the middle parts of the two corresponding connecting rods in the two linkage groups are hinged, the two connecting rods positioned at the lowest side in the two linkage groups are hinged with the accommodating groove (12) and the abutting plate (11) respectively, one end of each connecting rod in the linkage group connected with the abutting plate (11) is hinged with a sliding block, the inner supporting plate (14) is provided with a sliding groove connected with the sliding block in a sliding manner, and the connecting rods in the linkage group connected with the accommodating groove (12) are hinged with the inner supporting plate (14).

4. The tool for surface treatment and hole plugging of metal parts according to claim 3, wherein the sliding block and the sliding groove are both T-shaped.

5. The tool for surface treatment and hole plugging of metal parts according to claim 1, wherein a rubber pad is glued and fixed to one side of the inner supporting plate (14) away from the telescopic hinge (13).

6. The tool for surface treatment and hole plugging of metal parts according to claim 1, wherein the inner diameter of the cylinder (3) is smaller than the inner diameter of the drilled hole (2).

Images