CN202528138U - Tool for taking broken screw taps out - Google Patents

Abstract

The utility model discloses a tool for taking out broken taps, which is composed of a clamping device and a fast rotating device; the clamping device is composed of a clamping jaw, a drill body, a gear ring, a push rod, a compression spring, a telescopic adjustment nut for the push rod and a push rod The fast rotation device is composed of a socket wrench, a ratchet mechanism, and a tightening handle; the ratchet mechanism is composed of a ratchet, a return spring, and a pawl; the clamping device is provided with a push rod, a compression spring, a push rod telescopic adjustment nut and a push rod The spring chuck automatic discharge mechanism; the ejector rod is installed in the center of the fixed handle, and the diameter of the ejector rod is slightly smaller than the clamping diameter of the collet; the small diameter part behind the ejector rod is equipped with a compression spring that acts as a push rod . The beneficial effects of the utility model are: the utility model is easy to use and reliable in operation, and the screw taps of different diameters in the threaded holes can be manually taken out and broken without damaging the workpiece.

Description

Tool for taking out a broken tap

technical field

The utility model relates to a manual taking out tool, in particular to a broken tap taking out tool used for taking out broken taps in the tapping process.

Background technique

In mechanical processing, when using a tap to process threads, it is often encountered that the tap is broken in the workpiece. The scrap of the product is more regrettable than the loss of the tap. Usually, it is necessary to take out the broken tap in the threaded hole. The methods for removing the broken tap include EDM and welding. EDM is easy to process the matrix of the part and scrap the part, and the cost is high and cannot be processed on site. . Welding is unreliable and often damages the parts themselves. For the broken taps with shallow threaded holes in the workpiece, some simple tap removal devices are used according to the situation, such as using clamps or self-made steel wires inserted into the tap grooves to twist out the broken taps. Then, due to the different types of taps used, their diameters are not the same. Some simple self-made broken tap removal devices are difficult to ensure that different types of broken taps can be taken out, and because the direction of the user's twisting force is different, it is easy to remove the broken tap during the removal process. Damage to the already tapped internal thread.

Utility model content

In order to solve the shortcomings in the above problems, the utility model provides a tool for taking out broken taps.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a tool for taking out broken taps, which is composed of a clamping device and a fast rotating device; The spring, the ejector rod telescopic adjustment nut and the push rod are composed; the quick rotation device is composed of the socket wrench, the ratchet mechanism and the tightening handle; the ratchet mechanism is composed of the ratchet wheel, the return spring and the ratchet;

The clamping device is equipped with a collet automatic discharge mechanism composed of a push rod, a compression spring, a telescopic adjustment nut for the push rod and a push rod;

The ejector rod is installed in the center of the fixed handle, and the diameter of the ejector rod is slightly smaller than the clamping diameter of the collet; the small diameter part behind the ejector rod is equipped with a compression spring that acts as a push rod.

A transmission mechanism formed between the ring gear and the clamping jaws is provided for the opening and closing of the clamping jaws.

The spring collet automatic discharge mechanism is composed of a push rod, a compression spring, a telescopic adjustment nut for the push rod and a push rod; the spring collet automatic discharge mechanism is located in the center of the fixed handle.

The beneficial effects of the utility model are: the utility model is easy to use and reliable in operation, and the screw taps of different diameters in the threaded holes can be manually taken out and broken without damaging the workpiece.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a top view of the utility model.

In the figure: 1-claw; 2-drill body; 3-gear ring; 4-rod; 5-compression spring; 6-telescopic adjustment nut of the ejector rod; 10-fixed handle; 11-push rod; 12-return spring; 13-pawl.

Detailed ways

The utility model includes a clamping device formed by a jaw 1, a drill body 2, a ring gear 3, a push rod 4, a compression spring 5, a telescopic adjustment nut 6 for the push rod, and a push rod 11, and a sleeve pulley 7, a ratchet mechanism, Tighten the fast rotation device that handle 9 forms. The ratchet mechanism is made up of ratchet 8, back-moving spring 12 and ratchet 13. The clamping device is equipped with a collet automatic discharge mechanism consisting of a push rod 4, a compression spring 5, a push rod telescopic adjustment nut 6 and a push rod 11. The push rod 4 is installed at the center of the fixed handle 10, and the diameter of the push rod 4 is larger than The clamping diameter of collet is slightly smaller, and the small-diameter part behind push rod 4 is equipped with compression spring 5, and push rod 11 is equipped with in the front of push rod 4, makes push rod 11 always be pressed out under spring action. The afterbody of the push rod 4 is threaded, and the extension length of the push rod 11 can be adjusted by the telescopic adjustment nut 6 of the push rod. When the broken tap was screwed out, the fixed handle 10 was loosened, and the push rod 4 stretched out under the action of the compression spring 5, and the broken tap was automatically discharged.

When the utility model is used to take out the broken tap in the threaded hole of the workpiece, the jaw 1 of the clamping device is placed in the chip removal groove of the broken tap, and the fixed handle 10 is rotated by hand to drive the ring gear 3 to rotate, and the tooth Ring 3 moves jaw 1 downward in the inclined hole of drill body 2 through screw transmission, so that jaw 1 clamps the broken tap in the threaded hole. Then the fast rotating device is mounted on the hexagonal head of the drill body 2 through the hexagonal head, and the tightening handle 9 is rotated in the positive direction by hand, and the clamping device rotates under the drive of the tightening handle 9, thereby screwing out the broken tap. When the tightening handle 9 needs to be rotated multiple times, the tightening handle 9 can be rotated through a certain angle in the opposite direction.

The clamping device of the utility model is equipped with an automatic discharge mechanism for the collet, the ejector rod is installed at the center of the fixed handle, the diameter of the ejector rod is slightly smaller than the clamping diameter of the chuck, and the small diameter part behind the ejector rod is equipped with a compression Spring, the front of the push rod is equipped with a push rod, and the push rod is always pressed out under the action of the spring. The afterbody of the ejector rod is threaded, and the protruding length of the ejector rod can be adjusted through the telescopic adjustment nut of the ejector rod. When the broken tap is unscrewed, the fixed handle is loosened, and the ejector rod stretches out under the action of the compressed spring, and the broken tap is automatically discharged.

The clamping device and the fast rotating device of the utility model are connected together through a hexagonal head, and the clamping device and the fast rotating device can be separated when not in use, which is convenient for storage and maintenance of the tool.

What this specification lists are only the preferred implementation modes of the present utility model, and all equivalent technologies and structural transformations made under the working principle and idea of the present utility model are regarded as the protection scope of the present utility model.

Claims (3)

1. a fracture of wire is bored the taking-up instrument, and it is characterized in that: it is made up of clamping device and fast rotational device;

Said clamping device is made up of jaw (1), drill body (2), gear ring (3), push rod (4), compression spring (5), push rod flexible adjustment nut (6) and push rod (11); Said fast rotational device is pulled (7), ratchet mechanism, is tightened handle (9) and form by sleeve; Said ratchet mechanism is made up of ratchet (8), back-moving spring (12), ratchet (13);

Said clamping device is provided with the collet automatic discharge mechanism that is made up of push rod (4), compression spring (5), push rod flexible adjustment nut (6) and push rod (11);

Said push rod (4) is installed in fixed handle (10) centre, and the diameter of push rod (4) is more smaller than the clamping diameter of chuck; The compression spring (5) that extrudes push rod (11) effect has been equipped with at the minor diameter position of said push rod (4) back.

2. fracture of wire according to claim 1 awl taking-up instrument is characterized in that: be provided with between said gear ring (3) and the jaw (1) and be used for jaw and open the transmission mechanism with closed thread engagement formation.

3. fracture of wire according to claim 1 awl taking-up instrument is characterized in that: said collet automatic discharge mechanism is positioned at the center of fixed handle (10).