CN216541029U - Torque clamping sleeve with adjustable clamping force - Google Patents

Abstract

The utility model relates to a torque jacket with adjustable clamping force, in particular to a torque jacket, which aims to solve the problems that a drill bit for processing a small-diameter hole of an existing thin-wall part is easy to wear, break and burn, the drill bit is very difficult to break and take out, and the broken drill bit is easy to damage a threaded bottom hole, and comprises a jacket, a cutter bar and a plurality of adjusting components; the jacket comprises a conical sleeve body, a circular truncated cone and an annular sleeve body; the conical sleeve body, the circular truncated cone and the annular sleeve body are sequentially connected, the cutter bar is a cylinder, one end of the cutter bar is inserted into a central hole of the jacket, a drill bit mounting part is machined at the other end of the cutter bar, a plurality of threaded holes are radially machined in the outer side wall of the annular sleeve body, an adjusting assembly is installed in each threaded hole, the top of the end part of each adjusting assembly is in contact with the outer side wall of the cutter bar, a pit is machined in the contact surface of the end part of each adjusting assembly and the outer side wall of the cutter bar, and the top of the end part of each adjusting assembly is in contact with the pit of the cutter bar. The utility model belongs to the field of machining.

Description

Torque clamping sleeve with adjustable clamping force

Technical Field

The utility model relates to a torque jacket, in particular to a torque jacket with adjustable clamping force, and belongs to the field of machining.

Background

A small-diameter threaded hole is designed in a casing part of a large gear in key engineering. The key engineering design requirement is high, the machining precision requirement is strict, and the position precision, the size precision and the surface precision are required to be ensured in machining. Most of the key engineering materials are special and are mostly stainless steel or high-temperature alloy, so that the processing is difficult and the processing precision is difficult to ensure. The key engineering material is special and most of the engineering material is thin-walled parts, so that the small-diameter hole is difficult to process, and the drill bit is easy to wear, break and burn. Once broken, the small diameter drill bit is very difficult to remove. The small-diameter broken drill bit is easy to damage the threaded bottom hole. Due to the material specificity and the application importance, the small-diameter hole cannot be repaired.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the existing thin-wall part is easy to wear, break and burn a drill bit when processing a small-diameter hole drill bit, the drill bit is very difficult to break and take out, and the damage to a threaded bottom hole is easy to cause when the drill bit is broken and broken, and further provides a torque jacket with adjustable clamping force.

The technical problem is solved by the following scheme:

the device comprises a jacket, a cutter bar and a plurality of adjusting components; the jacket comprises a conical sleeve body, a circular truncated cone and an annular sleeve body; the conical sleeve body, round platform and the annular sleeve body are connected in order, it equals along axial centre bore internal diameter on the cover to press from both sides, the cutter arbor is the cylinder, the one end cartridge of cutter arbor is in the centre bore of pressing from both sides the cover, the other end processing of cutter arbor has the drill bit installation department, radial processing has a plurality of screw holes on the lateral wall of the annular sleeve body, install an adjusting part in every screw hole, and the tip top of adjusting part contacts with the lateral wall of cutter arbor, and the contact surface processing of the tip of adjusting part and the cutter arbor lateral wall has the pit, the tip top of adjusting part is in the pit of cutter arbor.

Compared with the prior art, the utility model has the following beneficial effects:

1. this application utilizes a plurality of adjusting part to step up fixedly to cutter arbor 2, and when the torsion that the moment of torsion pressed from both sides the cover reached the critical strength of disconnected drill bit rupture, press from both sides cover 1, cutter arbor 2 will produce the rotation of skidding to reach the effect of protection drill bit. The problem that the drill bit was broken can effectively be avoided taking place to the drill bit is installed on cutter arbor 2.

2. This application utilizes the different ingenious hard joint with the cover that presss from both sides of moment of torsion to change into the flexible coupling, has played the guard action to the drill bit.

3. The utility model has simple structure, low manufacturing cost and convenient large-scale use.

4. After the torque force is determined through calculation, the adjusting component is screwed. The clamping function of the jacket 1 and the cutter bar 2 is realized through the adjusting component. When the drilling torque reaches the critical force of breaking the drill bit, the drill bit jacket can produce slipping rotation, so that the effect of protecting the drill bit can be achieved.

Drawings

Fig. 1 is a front view of the overall structure of the present application.

Fig. 2 is a front side view of the collet 1, the tool holder 2 and a plurality of adjustment assemblies installed.

Fig. 3 is a schematic view of the collet 1, the tool holder 2 and a plurality of adjustment assemblies before installation.

Detailed Description

The first embodiment is as follows: the embodiment is described with reference to fig. 1-3, and the torque jacket with adjustable clamping force comprises a jacket 1, a cutter bar 2 and a plurality of adjusting components; the jacket 1 comprises a conical sleeve body, a circular truncated cone and an annular sleeve body; the cone-shaped cover body, round platform and the annular cover body are connected in order, it equals along axial centre bore internal diameter on the cover 1 to press from both sides, cutter arbor 2 is the cylinder, the one end cartridge of cutter arbor 2 is in the centre bore of pressing from both sides cover 1, the other end processing of cutter arbor 2 has the drill bit installation department, radial processing has a plurality of screw holes on the lateral wall of the annular cover body, install an adjusting part in every screw hole, and the tip top of adjusting part contacts with the lateral wall of cutter arbor 2, and the tip of adjusting part has the pit with the contact surface processing of the 2 lateral walls of cutter arbor, the tip top of adjusting part is in the pit of cutter arbor 2.

The second embodiment is as follows: the embodiment is described with reference to fig. 1-3, and the torque jacket with adjustable clamping force of the embodiment comprises a tightening screw 3, a ball 4 and two elastic gaskets 5; the spheroid 4 sets up in the pit and the threaded hole of cutter arbor 2, and 3 threaded connection in the top tight screw set up in the threaded hole, and two elastic gasket 5 set up the threaded hole between tight screw 3 in the top and the spheroid 4 relatively, and the front end of the tight screw 3 in top pushes up on an elastic gasket 5, and another elastic gasket 5 sets up with the contact of spheroid 4. Other components and connection modes are the same as those of the first embodiment.

In the present embodiment, the tightening screw 3 is screwed in to generate pressure on the two opposing elastic washers 5 and elastically deform the elastic washers 5, thereby clamping the arbor 2. When the tool is subjected to a sufficiently large torque force during machining, the ball 4 moves backwards under the torque force, so that the two elastic washers 5 deform, and the ball 4 jumps out of the recess of the tool holder 2. So that the clamping sleeve 1 loses the clamping effect on the cutter rod 2, and the main cutter sleeve idles and the powerful clamping sleeve does not rotate, thereby protecting the drill bit.

The third concrete implementation mode: referring to the embodiment described with reference to fig. 1-3, the elastic pad 5 of the torque jacket with adjustable clamping force in the embodiment is an annular pad with a convex middle part, and the two elastic pads 5 of each adjusting assembly are arranged in a concave opposite manner. The two elastic gaskets 5 form a movable space between them to generate pressure, and the elastic gaskets generate elastic deformation, thereby playing a role of clamping the powerful clamping sleeve. Other components and connection modes are the same as those of the first embodiment.

The fourth concrete implementation mode: referring to fig. 1 to 3, the torque clamp with adjustable clamping force according to this embodiment is described, and the rear end of the tightening screw 3 is a hexagon socket.

The tightening screw 3 is adjusted by the inner hexagonal wrench to be in threaded connection in the threaded hole of the cutter bar 2, and the elastic force of the elastic gasket 5 on the cutter bar 2 is adjusted.

Other components and connection modes are the same as those of the first embodiment.

The fifth concrete implementation mode: the embodiment is described with reference to fig. 1 to 3, and the center line of each threaded hole of the torque clamp sleeve with adjustable clamping force is arranged through the center line of the center hole of the clamp sleeve 1. Other components and connection modes are the same as those of the first embodiment.

The sixth specific implementation mode: in the torque jacket with adjustable clamping force according to the present embodiment, the threaded holes are uniformly distributed on the annular sleeve body, and the number of the threaded holes is three, four or five. Other components and connection modes are the same as those of the first embodiment.

Claims (6)

1. The utility model provides a clamp force adjustable torque jacket which characterized in that: the device comprises a jacket (1), a cutter bar (2) and a plurality of adjusting components; the jacket (1) comprises a conical sleeve body, a circular truncated cone and an annular sleeve body; the cone-shaped cover body, round platform and the annular cover body are connected in order, it equals along axial centre bore internal diameter on pressing from both sides cover (1), cutter arbor (2) are the cylinder, the one end cartridge of cutter arbor (2) is in the centre bore of pressing from both sides cover (1), the other end processing of cutter arbor (2) has the drill bit installation department, radial processing has a plurality of screw holes on the lateral wall of the annular cover body, install an adjusting part in every screw hole, and the tip top of adjusting part contacts with the lateral wall of cutter arbor (2), and the tip of adjusting part has the pit with the contact surface processing of cutter arbor (2) lateral wall, the tip top of adjusting part is in the pit of cutter arbor (2).

2. The torque jacket with adjustable clamping force according to claim 1, wherein: the adjusting component comprises a jacking screw (3), a ball body (4) and two elastic gaskets (5); spheroid (4) set up in pit and the threaded hole of cutter arbor (2), and tight screw in top (3) threaded connection sets up in the threaded hole, and two resilient pads (5) set up the threaded hole between tight screw in top (3) and spheroid (4) relatively, and the front end of the tight screw in top (3) pushes up on resilient pad (5), and another resilient pad (5) and spheroid (4) contact setting.

3. The torque jacket with adjustable clamping force according to claim 2, wherein: the elastic gaskets (5) are annular gaskets with the middle parts protruding outwards, and the two elastic gaskets (5) of each adjusting assembly are arranged oppositely in a concave direction.

4. The torque jacket with adjustable clamping force according to claim 2, wherein: the rear end of the tightening screw (3) is provided with an inner hexagonal groove.

5. The torque jacket with adjustable clamping force according to claim 1, wherein: the central line of each threaded hole is arranged through the central line of the central hole of the jacket (1).

6. The torque jacket with adjustable clamping force according to claim 1, wherein: a plurality of threaded holes are uniformly distributed on the annular sleeve body, and the number of the threaded holes is three, four or five.

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