CN214519017U

CN214519017U - Self-adaptive clamping jacket

Info

Publication number: CN214519017U
Application number: CN202023295785.XU
Authority: CN
Inventors: 杜月琴; 王勇; 胡建; 任唯明
Original assignee: Suzhou Fengrui Precision Electromechanical Co ltd
Current assignee: Suzhou Fengrui Precision Electromechanical Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-29
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a self-adaptive clamping jacket, which comprises a petal-shaped jacket body, wherein the jacket body is hollow, the first end of the jacket body is elastic and used for connecting a machine tool spindle, the second end of the jacket body is elastic and used for clamping parts, and the diameter of the second end is larger than that of the first end; the second end has two second circular arc portions that can inwards contract at least, every the inner wall of second circular arc portion is provided with the clamp splice that a lateral wall is unanimous with it radian replaceably, the surface of clamp splice do not bulge in the terminal surface of second end, work as when first end is connected with the lathe main shaft, second circular arc portion inwards contracts and forms whole circular cavity, the clamp splice is followed second circular arc portion contracts in step to the clamping part. The utility model discloses press from both sides inside the removable clamp splice that sets up of cover body to the clamp splice can be changed at will according to the diameter of part, outline, has avoided whole change to press from both sides the cover body, has simplified the change process, has reduced the replacement cost.

Description

Self-adaptive clamping jacket

Technical Field

The utility model relates to a metal cutting corollary equipment technical field specifically relates to a self-adaptation presss from both sides tight clamp cover.

Background

Machine manufacturing refers to the industrial sector engaged in the production of various power machines, hoisting and transport machines, chemical machines, textile machines, machine tools, instruments, meters and other mechanical equipment. The mechanical manufacturing industry is the most basic industry of a country and also determines the overall level of the manufacturing industry of the country, and the development level of the mechanical manufacturing industry directly influences the improvement of the national economic level.

In the prior art, the annular groove in the mechanical industry is mostly machined by turning or milling, and a machine tool is required to be used for matching. However, the spindle of the turning lathe often cannot be well adapted to the machined part, and in order to ensure effective connection between the machined part and the lathe, a jacket needs to be arranged between the spindle of the lathe and the part to clamp the part. The conventional clamping sleeve is generally provided with an inner hole for clamping parts at the axis, the diameter of the inner hole is usually fixed, so that the parts with different diameters need different clamping sleeves, and the whole clamping sleeve needs to be replaced after the hole wall of the inner hole is worn, so that the manufacturing cost is further increased, and the resource waste exists.

Therefore, how to improve the flexibility of the jacket and reduce the cost is a problem which needs to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art existence, provide a self-adaptation presss from both sides tight clamp cover.

The purpose of the utility model is realized through the following technical scheme:

the self-adaptive clamping jacket comprises a petal type jacket body, wherein the jacket body is hollow, the first end of the jacket body is elastic and used for connecting a machine tool spindle, the second end of the jacket body is elastic and used for clamping a part, and the diameter of the second end is larger than that of the first end; the second end has two second circular arc portions that can inwards contract at least, every the inner wall of second circular arc portion is provided with the clamp splice that a lateral wall is unanimous with it radian replaceably, the surface of clamp splice do not bulge in the terminal surface of second end, work as when first end is connected with the lathe main shaft, second circular arc portion inwards contracts and forms whole circular cavity, the clamp splice is followed second circular arc portion contracts in step to the clamping part.

Preferably, the inner wall of the second end is provided with an installation block matched with the clamping block, the inner wall of the installation block does not protrude out of the clamping block, and the clamping block is fixedly arranged on the installation block through a locking screw.

Preferably, two locking screws are symmetrically arranged on two sides of the clamping block in a penetrating mode.

Preferably, the inner wall of the clamping block is provided with at least one step surface.

Preferably, after the clamping block is contracted, the cross section of the inner wall of the clamping block is circular, rectangular or triangular.

Preferably, the second end is composed of four second arc portions, the central angle of each second arc portion is 45 degrees, and a gap exists between every two second arc portions in an initial state.

Preferably, the first end is composed of four first arc portions, the central angle of each first arc portion is 45 degrees, and a gap exists between every two first arc portions in an initial state.

Preferably, the first arc portion and the second arc portion are arranged in a staggered manner.

Preferably, the diameter of the second end is gradually enlarged outwards from the middle part of the jacket body to form a trumpet shape.

Preferably, the inner wall of the first arc portion has a thread.

The beneficial effects of the utility model are mainly embodied in that:

1. the replaceable clamping block is arranged in the jacket body, and the clamping block can be randomly replaced according to the diameter and the outline of the part, so that the jacket can be flexibly replaced to clamp various parts, the whole jacket body is prevented from being replaced, the replacement process is simplified, the replacement cost is reduced, the practicability of the utility model is improved, the application range is expanded, and the replacement efficiency is improved;

2. the inner wall of the clamping block can be set into any shape according to the outer contour of the part, so that the requirements of parts of different shapes are met, and the clamping block can be used for stably clamping the parts;

3. the inner wall of the clamping block is provided with a step surface, so that step positioning can be carried out, and the clamping length of a part can be accurately controlled, so that parts with different diameters and widths can be clamped by the clamping block in one shape, the application range of the clamping block is further improved, and the replacement of the clamping block is reduced;

4. the first end and the second end of pressing from both sides the cover body constitute through four circular arc portions for the lateral wall that presss from both sides the cover body has elasticity, can contract, conveniently inserts on the one hand and establishes the part, and on the other hand can ensure to press from both sides the cover body and press from both sides tight part, guarantees to press from both sides the reliability and the stability that press from both sides tight part.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

FIG. 1: schematic diagram of an embodiment of the present invention;

FIG. 2: the embodiment of the utility model discloses a part of the schematic diagram;

FIG. 3: the utility model discloses user state schematic diagram.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the scope of the present invention.

In the description of the schemes, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

As shown in fig. 1 to 3, the present invention discloses a self-adaptive clamping jacket, which comprises a petal type jacket body 1, wherein the jacket body 1 is hollow, a first end 101 thereof has elasticity and is used for connecting a machine tool spindle, a second end 102 thereof has elasticity and is used for clamping a part, and the diameter of the second end 102 is larger than that of the first end 101; the second end 102 is at least provided with two second arc parts 1021 capable of contracting inwards, the inner wall of each second arc part 1021 is replaceably provided with a clamping block 2 with the outer side wall having the same radian with the second arc part, the outer surface of each clamping block 2 does not protrude out of the end surface of the second end 102, when the first end 101 is connected with a machine tool spindle, the second arc parts 1021 contract inwards to form a whole-circle cavity, and the clamping blocks 2 contract synchronously along with the second arc parts 1021 to clamp parts.

Specifically, as shown in fig. 2, the inner wall of the second end 102 is provided with an installation block 1022 matched with the clamping block 2, and the inner wall of the installation block 1022 does not protrude from the inner wall of the clamping block 2, so that the width of a through hole formed in the inner wall of the clamping block 2 is not affected by the inner wall of the installation block 1022, and the inner wall of the clamping block 2 is ensured to be tightly attached to the outer wall of a component.

In order to match the mounting block 1022 with the clamping block 2, the radian of the mounting block 1022 is consistent with that of the clamping block 2, and the clamping block 2 is fixedly arranged on the mounting block 1022 through a locking screw 3.

In order to improve the stability between the clamping block 2 and the mounting block 1022, two locking screws 3 are symmetrically arranged on two sides of the clamping block 2.

As shown in fig. 1, in order to increase the application range of the clamping block 2, the inner wall of the clamping block 2 has at least one step surface 201. The clamping block 2 with the primary step surface is exemplified in the preferred embodiment, and the structure ensures that the clamping block 2 can clamp parts with different diameters and widths under the condition of not replacing, reduces the replacing frequency of the clamping sleeve body 1 and improves the utility model discloses a practicality. In other possible embodiments, the inner wall of the clamping block 2 may have multiple steps. In other possible embodiments, the inner wall of the clamping block 2 may not have a step surface.

In this preferred embodiment, the inner wall of the clamping block 2 is arc-shaped, and the clamping block 2 is contracted along with the second arc portion 1021 to form a circle shape so as to be adapted to a part with a circular cross section. In other possible embodiments, after the clamping block 2 is contracted, the cross section of the inner wall of the clamping block 2 may be circular, rectangular or triangular, so that the inner wall of the clamping block 2 is adapted to the outer contour of the machined part to ensure that the inner wall of the clamping block 2 is tightly attached to the machined part, and the part is prevented from shaking after being clamped by the clamping block 2.

As shown in fig. 1 and 2, the second end 102 is composed of four second arc portions 1021, a central angle of each second arc portion 1021 is 45 °, and in an initial state, a gap exists between every two second arc portions 1021. In other possible embodiments, the second end 102 may also be composed of more than four second arc portions 1021.

Further, the first end 101 is composed of four first arc portions 1011, a central angle of each first arc portion 1011 is 45 °, and a gap exists between every two first arc portions 1011 in an initial state. In other possible embodiments, the first end 101 may be composed of more than four first arc portions 1011.

In order to ensure the rigidity of the jacket body 1, the first arc portion 1011 and the second arc portion 1021 are arranged in a staggered manner, so that the side wall elasticity of the jacket body 1 can be improved to the greatest extent.

In the preferred embodiment, the diameter of the second end 102 gradually increases from the middle of the jacket body 1 to the outside, forming a trumpet shape. Therefore, when the jacket body 1 extends into the inner cavity of the machine tool spindle, the jacket body can be matched with the inner cavity, and the inner cavity can apply pressure to the outer wall of the second end 102 to ensure that the second arc part 1021 is contracted inwards, so that the clamping block 2 clamps a part.

As shown in fig. 3, in the preferred embodiment, the inner wall of the first arc 1011 has a screw thread (not shown), so that it can be shrunk to form a screw hole for screw-fastening with the inner cavity of the machine tool spindle. In other possible embodiments, the first end 101 may be fixed in the inner cavity of the machine spindle by other mechanisms.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. Self-adaptation presss from both sides tight cover, its characterized in that: the clamp comprises a petal-type clamp sleeve body (1), wherein the clamp sleeve body (1) is hollow, a first end (101) of the clamp sleeve body is elastic and used for connecting a machine tool spindle, a second end (102) of the clamp sleeve body is elastic and used for clamping a part, and the diameter of the second end (102) is larger than that of the first end (101); the second end (102) is provided with at least two second arc parts (1021) capable of contracting inwards, the inner wall of each second arc part (1021) is provided with a clamping block (2) with the outer side wall consistent with the radian of the second arc part in a replaceable manner, the outer surface of each clamping block (2) does not protrude out of the end surface of the second end (102), when the first end (101) is connected with a machine tool spindle, the second arc parts (1021) contract inwards to form a whole circular cavity, and the clamping blocks (2) contract synchronously along with the second arc parts (1021) to clamp parts.

2. The adaptive clamping collet of claim 1, wherein: the inner wall of the second end (102) is provided with an installation block (1022) matched with the clamping block (2), the inner wall of the installation block (1022) does not protrude out of the clamping block (2), and the clamping block (2) is fixedly arranged on the installation block (1022) through a locking screw (3).

3. The adaptive clamping collet of claim 2, wherein: two locking screws (3) are symmetrically arranged on two sides of the clamping block (2) in a penetrating mode.

4. The adaptive clamping collet of claim 3, wherein: the inner wall of the clamping block (2) is at least provided with a first-stage step surface (201).

5. The adaptive clamping collet of claim 1, wherein: after the clamping block (2) is contracted, the cross section of the inner wall of the clamping block is circular, rectangular or triangular.

6. The adaptive clamping collet of claim 1, wherein: the second end (102) is composed of four second arc parts (1021), the central angle of each second arc part (1021) is 45 degrees, and gaps exist between every two second arc parts (1021) in an initial state.

7. The adaptive clamping collet of claim 6, wherein: the first end (101) is composed of four first arc parts (1011), the central angle of each first arc part (1011) is 45 degrees, and a gap exists between every two first arc parts (1011) in the initial state.

8. The adaptive clamping collet of claim 7, wherein: the first arc part (1011) and the second arc part (1021) are arranged in a staggered mode.

9. The adaptive clamping collet of claim 1, wherein: the diameter of the second end (102) is gradually enlarged outwards from the middle part of the jacket body (1) to form a horn shape.

10. The adaptive clamping collet of claim 8, wherein: the inner wall of the first arc part (1011) is provided with threads.