CN213437252U

CN213437252U - Flange expansion sleeve type clamp

Info

Publication number: CN213437252U
Application number: CN202021585565.8U
Authority: CN
Inventors: 胡小健; 陈菊梅
Original assignee: Prec Cast Zhongshan Co ltd
Current assignee: Prec Cast Zhongshan Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-06-15
Anticipated expiration: 2030-08-03

Abstract

The utility model discloses a flange expansion sleeve type clamp, which comprises a taper mandrel and a plurality of taper blocks, wherein the taper blocks are arranged in a surrounding way to form an expansion sleeve; the expansion sleeve is provided with a conical through hole, the conical mandrel is inserted into the conical through hole, and the conical mandrel moves along the conical through hole; the taper mandrel is in contact with the taper block, and the taper mandrel moving along the taper through hole stretches the taper block of the expansion sleeve to change the diameter of the expansion sleeve. It has the advantages of simple structure, compact matching, reasonable design and the like; therefore, the product has excellent technical and economic performance.

Description

Flange expansion sleeve type clamp

[ technical field ] A method for producing a semiconductor device

The utility model mainly relates to a flange cover formula anchor clamps that rise.

[ background of the invention ]

In the modern social development, the requirements on products are higher and higher, and the products are perfect in appearance, assembly precision, comprehensive performance and the like. The product performance is required to be excellent, and all the assemblies are required to meet the design requirements of drawings. The numerical control machine manufacturing industry is of great importance to various selections of machine tool precision, machining processes and tool fixtures, the efficiency and quality stability are ensured during mass production, and the selection of the fixture is one of the most effective methods. A blank of a flange product belongs to an aluminum alloy die-casting blank, and is also a type of thin-wall product which is easy to deform, the product is turned on a numerical control lathe according to the drawing requirement, and the dimensional precision and the jumping of an outer circle cannot be guaranteed by a common three-jaw machining test. In order to solve the problem, the utility model provides a novel flange cover anchor clamps design that rises.

[ Utility model ] content

For solving the tight processing deformation problem who produces of traditional excircle clamp, the utility model provides a new structure scheme, this flange shell type anchor clamps that rise adopt following technical scheme:

a flange expansion sleeve type clamp comprises a taper mandrel and a plurality of taper blocks, wherein the taper blocks are arranged in a surrounding mode to form an expansion sleeve;

the expansion sleeve is provided with a conical through hole, the conical mandrel is inserted into the conical through hole, and the conical mandrel moves along the conical through hole; the taper mandrel is in contact with the taper block, and the taper mandrel moving along the taper through hole stretches the taper block of the expansion sleeve to change the diameter of the expansion sleeve.

Preferably, the diameter of the bottom of the tapered through hole is larger than that of the top.

Preferably, the tapered mandrel is provided with a top cover.

Preferably, the taper mandrel is provided with a snap ring, and the snap ring moves along with the taper axis.

Preferably, the clamping ring is sleeved on the expansion sleeve and slides along the expansion sleeve.

Preferably, the bottom of the taper block is provided with a hook.

The utility model discloses compare produced beneficial effect with the background art:

the above technical scheme is adopted in the utility model, through the even centre gripping of cover formula anchor clamps that rise with the circle in the flange so that process the flange excircle, the flange dimensional stability who makes processing come out is unanimous, and this structural scheme has improved production efficiency, and effectual saving cost has reduced the product and has scrapped, and it is a technical and economic nature all has the product of superior performance.

[ description of the drawings ]

Fig. 1 is a schematic view of a flange expanding sleeve type clamp according to a preferred embodiment of the present invention;

fig. 2 is an exploded view of a flange expanding sleeve type clamp according to a preferred embodiment of the present invention;

fig. 3 is a schematic view of the taper mandrel and the expansion sleeve in the preferred embodiment of the present invention.

[ detailed description ] embodiments

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

The technical solution and the advantages of the present invention will be more clear and clear by further describing the embodiments of the present invention with reference to the drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.

The utility model provides a preferred embodiment: as shown in fig. 1 to 3, a flange expanding sleeve type clamp comprises a taper mandrel 10 and a plurality of taper blocks 20, wherein the taper blocks 20 are arranged in a surrounding manner to form an expanding sleeve 30, and adjacent taper blocks are relatively movable; the taper mandrel 10 is provided with a top cover 11.

The expansion sleeve 30 is provided with a tapered through hole 31, the tapered mandrel 10 is inserted into the tapered through hole 31, and the tapered mandrel 10 moves along the tapered through hole 31; the diameter of the bottom of the conical through hole is larger than that of the top of the conical through hole, so that the expanding sleeve is expanded when the conical mandrel moves in the conical through hole; the taper mandrel 10 is in contact with the taper block 20, and the taper mandrel 10 moving along the taper through hole 31 expands the taper block 20 of the expansion sleeve to enlarge the diameter of the top of the expansion sleeve so as to clamp the workpiece.

The taper mandrel 10 is provided with a clamping ring 12, the clamping ring 12 is sleeved on the expansion sleeve 30, and the bottom of the expansion sleeve is fixed through the clamping ring; the bottom of the taper block 20 is provided with a hook 21, and the hook 21 is matched with the snap ring 12 to prevent the taper block from disengaging. The inner circle of the workpiece is sleeved on the expansion sleeve, the clamping ring 12 is fixed at the bottom of the expansion sleeve 30 and locked on a clamp of a machine tool, and the taper mandrel is pushed to move towards the top of the expansion sleeve at the moment so that the top of the expansion sleeve is expanded to clamp the workpiece.

When the outer circular end face is turned, the inner circular hole of the clamping workpiece is used as a clamping and positioning reference, a hydraulic device is arranged in the lathe, the hydraulic device is connected with and drives the taper mandrel to movably contact with the taper through hole, and a clamped product is controlled by the in-and-out action of the taper mandrel in the expansion sleeve. When the expansion sleeve clamps a product, the expansion sleeve can contact most of inner hole circles through the taper block, clamping force can be uniformly distributed on the whole circle, internal stress released by taking down the product after processing is consistent, and deformation of the product can be basically controlled.

In the description of the specification, reference to the description of "one embodiment," "preferably," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention, and schematic representations of the terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

With the above structure and principle in mind, those skilled in the art should understand that the present invention is not limited to the above embodiments, and all modifications and substitutions based on the present invention and adopting the known technology in the art are within the scope of the present invention, which should be limited by the claims.

Claims

1. The utility model provides a flange cover formula anchor clamps that rise which characterized in that: the device comprises a taper mandrel and a plurality of taper blocks, wherein the taper blocks are arranged in a surrounding manner to form an expansion sleeve;

the expansion sleeve is provided with a conical through hole, the conical mandrel is inserted into the conical through hole, and the conical mandrel moves along the conical through hole; the taper mandrel is in contact with the taper block, and the taper mandrel moving along the taper through hole props up the taper block of the expansion sleeve.

2. The flange expanding sleeve clamp of claim 1, wherein: the diameter of the bottom of the conical through hole is larger than that of the top of the conical through hole.

3. The flange expanding sleeve clamp of claim 1, wherein: the top cover is installed to the tapering dabber.

4. The flange expanding sleeve clamp of claim 1, wherein: the taper mandrel is provided with a clamping ring which is sleeved on the expansion sleeve.

5. The flange expanding sleeve clamp of claim 1, wherein: the bottom of the taper block is provided with a clamping hook.