CN219561685U

CN219561685U - Overload protection tapping clamp

Info

Publication number: CN219561685U
Application number: CN202320758757.1U
Authority: CN
Inventors: 侯杰; 邹海波
Original assignee: Dongguan Xinda Cnc Tool Co ltd
Current assignee: Dongguan Xinda Cnc Tool Co ltd
Priority date: 2023-04-08
Filing date: 2023-04-08
Publication date: 2023-08-22
Anticipated expiration: 2033-04-08

Abstract

The utility model discloses an overload protection tapping clamp, which relates to the technical field of machining tapping, and aims at the problems that when a cutter is adopted to tap three-millimeter fine teeth at present, the torque of the cutter is increased due to the abrasion of the cutter during tapping, so that the cutter is twisted off, the service life of the tap is short, and the machining cost of the tap is improved, and the overload protection tapping clamp is provided with the following scheme: the overload protection clamp comprises an overload protection clamp body and a pressing sleeve nut, wherein the pressing sleeve nut is sleeved on the overload protection clamp body; the overload protection clamp is characterized in that a universal force transmission shaft is arranged in the overload protection clamp body, a centering shaft is inserted in the universal force transmission shaft, and the centering shaft is inserted in the overload protection clamp body. The utility model has reasonable structural design, can automatically unload force when the torque of the cutter reaches a set value, protects the cutter from being forcibly twisted off, can adjust the pressure to the waveform elastic sheet by adjusting the screw, realizes torque adjustment, has long service life of the tap and reduces the processing cost of the tap.

Description

Overload protection tapping clamp

Technical Field

The utility model relates to the technical field of machining tapping, in particular to an overload protection tapping clamp.

Background

Tapping means that the inner wall of the hole is processed with threads; his role is to make threads. So that the corresponding bolts or screws can be connected with the bolts or screws.

However, when the cutter is adopted to tap three millimeters of fine teeth, the torque of the cutter is increased due to the abrasion of the cutter when the cutter is adopted to tap, so that the cutter is twisted off, the service life of the cutter is short, and the processing cost of the cutter is improved.

Disclosure of Invention

The utility model aims to solve the defects that when a cutter is adopted to tap three millimeters of fine teeth, the torque of the cutter is increased due to the abrasion of the cutter when the cutter is adopted to tap, so that the cutter is twisted off, the service life of the cutter is short, and the processing cost of the cutter is improved.

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

an overload protection tapping clamp comprising:

the overload protection clamp comprises an overload protection clamp body and a pressing sleeve nut, wherein the pressing sleeve nut is sleeved on the overload protection clamp body;

the overload protection clamp is characterized in that a universal force transmission shaft is arranged in the overload protection clamp body, a centering shaft is inserted in the universal force transmission shaft, the centering shaft is inserted in the overload protection clamp body, a core shaft is inserted in the sleeve pressing nut, one end of the core shaft is movably connected with three force transmission steel balls, a positioning sleeve is sleeved on the outer side of the core shaft, and an adjusting screw is arranged on an inner thread of the overload protection clamp body.

In a preferred embodiment, three spherical holes are formed in the mandrel, and the three force transmission steel balls are movably connected in the corresponding spherical holes.

In a preferred embodiment, the outer wall of the universal force transmission shaft is provided with three arc grooves and three spherical grooves, and the three force transmission steel balls are matched with the corresponding arc grooves and the spherical grooves.

In a preferred embodiment, the overload protection clamp body is provided with an annular groove, and a first sealing ring is arranged in the annular groove.

In a preferred embodiment, an annular clamping groove is formed in the inner side of the pressing sleeve nut, and a second sealing ring is arranged in the annular clamping groove.

In a preferred embodiment, two waveform elastic pieces are installed in the overload protection clamp body, one waveform elastic piece is arranged between the adjusting screw and the universal force transmission shaft, and the other waveform elastic piece is arranged between the universal force transmission shaft and the mandrel.

According to the overload protection tapping clamp, when the torque force of a cutter reaches a set value, the force can be automatically removed through the common matching of the overload protection clamp body, the universal force transmission shaft, the press sleeve nut, the centering shaft, the three force transmission steel balls, the first sealing ring and the second sealing ring, so that the cutter is prevented from being forcibly twisted off;

according to the overload protection tapping clamp, through the joint matching of the waveform elastic piece and the adjusting screw, the pressure can be adjusted to the waveform elastic piece through the adjusting screw, so that torsion adjustment is realized;

the utility model has reasonable structural design, can automatically unload force when the torque of the cutter reaches a set value, protects the cutter from being forcibly twisted off, can adjust the pressure to the waveform elastic sheet by adjusting the screw, realizes torque adjustment, has long service life of the tap and reduces the processing cost of the tap.

Drawings

Fig. 1 is a schematic perspective view of an overload protection tapping fixture according to the present utility model;

fig. 2 is a schematic diagram of an explosion structure of an overload protection tapping fixture according to the present utility model;

FIG. 3 is a cross-sectional view of an overload protection tapping clamp according to the present utility model;

fig. 4 is a schematic structural diagram of a universal force transmission shaft of an overload protection tapping fixture according to the present utility model;

in the figure: 1. an overload protection clamp body; 2. a universal force transmission shaft; 3. pressing a sleeve nut; 4. centering shaft; 5. a force transmission steel ball; 6. a mandrel; 7. a first seal ring; 8. a second seal ring; 9. a wave spring plate; 10. a positioning sleeve; 11. and (5) adjusting a screw.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, one embodiment of the present solution provides: an overload protection tapping clamp comprising:

the overload protection clamp comprises an overload protection clamp body 1 and a pressing sleeve screw cap 3, wherein the pressing sleeve screw cap 3 is sleeved on the overload protection clamp body 1;

the overload protection fixture comprises an overload protection fixture body 1, wherein a universal force transmission shaft 2 is arranged in the overload protection fixture body 1, a centering shaft 4 is inserted in the universal force transmission shaft 2, the centering shaft 4 is inserted in the overload protection fixture body 1, a mandrel 6 is inserted in a pressing sleeve nut 3, one end of the mandrel 6 is movably connected with three force transmission steel balls 5, a positioning sleeve 10 is sleeved on the outer side of the mandrel 6, and an adjusting screw 11 is arranged on an inner thread of the overload protection fixture body.

Referring to fig. 2, in this embodiment, three spherical holes are formed on the mandrel 6, and three force-transmitting steel balls 5 are movably connected in the corresponding spherical holes, so that the three force-transmitting steel balls 5 can be conveniently and movably connected.

Referring to fig. 4, in this embodiment, three arc grooves and three spherical grooves are formed on the outer wall of the universal force transmission shaft 2, and three force transmission steel balls 5 are adapted to the corresponding arc grooves and spherical grooves, so that when the torque reaches a set value, the three force transmission steel balls 5 can move into the corresponding arc grooves to realize idle unloading.

Referring to fig. 3, in this embodiment, an annular groove is formed in the overload protection fixture body 1, and a first sealing ring 7 is disposed in the annular groove, so as to achieve a sealing effect.

Referring to fig. 3, in this embodiment, an annular clamping groove is formed on the inner side of the press sleeve nut 3, and a second sealing ring 8 is disposed in the annular clamping groove, so as to achieve a sealing effect.

Referring to fig. 3, in this embodiment, two waveform elastic pieces 9 are installed in the overload protection clamp body 1, one waveform elastic piece 9 is disposed between the adjusting screw 11 and the universal force transmission shaft 2, and the other waveform elastic piece 9 is disposed between the universal force transmission shaft 2 and the mandrel 6, and can adjust pressure to the waveform elastic piece 9 through the adjusting screw 11, so as to realize torsion adjustment.

The working principle is that the straight shank clamping position can be designed to be connected with equipment clamping, the universal force transmission shaft 2 is driven to rotate through the centering shaft 4, X, Y shaft motion can be made on the basis of the centering shaft 4, and plane pressure is made to the core shaft 6 through the waveform elastic sheet 9, so that automatic centering of the core shaft 6 is achieved, the core shaft 6 is kept concentric with a cutter handle, when the torque reaches a set value during processing, three force transmission steel balls 5 can slide out of three spherical grooves on the universal force transmission shaft 2, idle running can be achieved in the arc grooves on the universal force transmission shaft 2, in addition, pressure can be adjusted to the waveform elastic sheet 9 through the adjusting screw 11, and torsion adjustment can be achieved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. An overload protection tapping clamp, comprising:

the overload protection clamp comprises an overload protection clamp body (1) and a pressing sleeve screw cap (3), wherein the pressing sleeve screw cap (3) is sleeved on the overload protection clamp body (1);

the overload protection clamp comprises an overload protection clamp body (1), wherein a universal force transmission shaft (2) is arranged in the overload protection clamp body (1), a centering shaft (4) is inserted in the universal force transmission shaft (2), a mandrel (6) is inserted in a sleeve pressing nut (3), three force transmission steel balls (5) are movably connected to one end of the mandrel (6), a positioning sleeve (10) is sleeved on the outer side of the mandrel (6), and an adjusting screw (11) is arranged on an inner thread of the overload protection clamp body.

2. The overload-protection tapping clamp as set forth in claim 1, wherein: three spherical holes are formed in the mandrel (6), and the three force transmission steel balls (5) are movably connected in the corresponding spherical holes.

3. The overload-protection tapping clamp as set forth in claim 1, wherein: three arc grooves and three spherical grooves are formed in the outer wall of the universal force transmission shaft (2), and three force transmission steel balls (5) are matched with the corresponding arc grooves and the corresponding spherical grooves.

4. The overload-protection tapping clamp as set forth in claim 1, wherein: an annular groove is formed in the overload protection clamp body (1), and a first sealing ring (7) is arranged in the annular groove.

5. The overload-protection tapping clamp as set forth in claim 1, wherein: an annular clamping groove is formed in the inner side of the pressing sleeve nut (3), and a second sealing ring (8) is arranged in the annular clamping groove.

6. The overload-protection tapping clamp as set forth in claim 1, wherein: two waveform shrapnel (9) are installed in the overload protection clamp body (1), wherein one waveform shrapnel (9) is arranged between the adjusting screw (11) and the universal force transmission shaft (2), and the other waveform shrapnel (9) is arranged between the universal force transmission shaft (2) and the mandrel (6).