CN205927172U

CN205927172U - Inflation anchor clamps

Info

Publication number: CN205927172U
Application number: CN201620925022.3U
Authority: CN
Inventors: 庄旭; 董春
Original assignee: Suzhou Hao Letter Pml Precision Mechanism Ltd
Current assignee: Suzhou Hao Letter Pml Precision Mechanism Ltd
Priority date: 2016-08-23
Filing date: 2016-08-23
Publication date: 2017-02-08
Anticipated expiration: 2026-08-23

Abstract

The utility model discloses an inflation anchor clamps, including inflation axle, spring, toper plug and eccentric shaft, inflation axle including the base and with the bulge of base in -cut connection, be used for installing the product in the bulge, the inside of base is provided with the mounting hole, the spring set up in in the toper plug, and both install in in the mounting hole, the outer peripheral face of base to its inside seted up one with the screw hole of the perpendicular intercommunication of mounting hole, insert in the screw hole and be equipped with phase -match with it the eccentric shaft. The utility model discloses at the during operation, the eccentric shaft rotates, makes the toper outer peripheral face of its dieback toper plug and drives the toper plug to impel to the direction of being close to the bulge to make the bulge to the expansion of its periphery, place the product in the bulge, continue to adjust the eccentric shaft, thereby make bulge and the product closely to laminate, thereby guarantee the machining precision.

Description

Expansion clamp

Technical field

This utility model is related to a kind of frock clamp, more particularly to a kind of expansion clamp.

Background technology

Jaw is typical clamping tool, it is possible to achieve the clamping of part, has certain thickness part and adds carrying out machine Man-hour can pass through jaw（Such as 3 points jaws）Clamping is fixed, but the chucking power of jaw is unable to precise control, thus Machining accuracy cannot be ensured.Further, since ultra-thin part is too thin, it cannot carry out clamping with jaw, thus jaw has on using There is certain limitation.

Utility model content

The purpose of this utility model is to provide a kind of expansion clamp, thus customer service the deficiencies in the prior art.

For reaching above-mentioned purpose, the technical solution of the utility model is as follows：

A kind of expansion clamp, including main axis of dilatation, spring, conic mandrel bar and eccentric shaft, described main axis of dilatation include pedestal and With the bulge of described pedestal socket connection, in described bulge, be used for installing product, described pedestal be internally provided with installation Hole, described spring is arranged in described conic mandrel bar, and both are installed on described installation in the hole, and the periphery of described pedestal is towards it Inside offers the screwed hole of one and described installing hole vertical connection, be inserted with described screwed hole matched described partially Heart axle；

When described eccentric shaft turns, the tapered outer circumferential surfaces of conic mandrel bar described in its dieback and drive described conic mandrel bar to Near the propulsion of the direction of described bulge, thus promoting described bulge to expand to its periphery.

Preferably, described bulge is made up of the dentalation of multi-disc and described pedestal socket connection, in described tapered core Under the promotion of rod, described dentalation is expanded laterally.

Preferably, described eccentric shaft include threaded portion and be respectively arranged on described threaded portion two ends turn portion and top pressure Portion, described top splenium is used for the tapered outer circumferential surfaces of conic mandrel bar described in dieback.

Further, the described end face turning portion offers the interior hexagonal opening for force application apparatus force.

Compared with prior art, advantage of the present utility model at least that：

1）When eccentric shaft turns, the tapered outer circumferential surfaces of its dieback conic mandrel bar simultaneously drive conic mandrel bar near bulge Direction propulsion, thus promote bulge to its periphery expand, product is placed in bulge, continue adjust eccentric shaft, from And bulge and product are fitted tightly, thus ensure machining accuracy.

2）This utility model is applied to the product of general thickness, can be also used for the clamping compared with thin product, it is to avoid clamping Deformation of products that shakiness leads to and the low problem of machining accuracy, thus of the present utility model applied widely.

Brief description

In order to be illustrated more clearly that the technical scheme in this utility model embodiment, below will be to prior art and embodiment In description, the accompanying drawing of required use is briefly described.

Fig. 1 is the exploded perspective view of the expansion clamp disclosed in this utility model embodiment.

Specific embodiment

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe.

Shown in Figure 1, this utility model embodiment discloses a kind of expansion clamp, including main axis of dilatation A, spring B, taper Plug C and eccentric shaft D, main axis of dilatation A include the pedestal A1 and bulge A2 with pedestal A1 socket connection, are used in bulge A2 Product is installed, pedestal A1 is internally provided with installing hole, and spring B is arranged in conic mandrel bar C, and both are installed on installing hole Interior, the periphery of pedestal A1 offers the screwed hole A11 of one and installing hole vertical connection towards inside it, plugs in screwed hole A11 There is matched eccentric shaft D；When eccentric shaft D rotates, the tapered outer circumferential surfaces of its dieback conic mandrel bar C simultaneously drive tapered core Excellent C advances near the direction of bulge A2, thus promoting bulge A2 to expand to its periphery.

Specifically, bulge A2 is made up of the dentalation A21 of multi-disc and pedestal A1 socket connection, conic mandrel bar C's Lower dentalation A21 is promoted to expand laterally.

Eccentric shaft D include threaded portion D1 and be respectively arranged on threaded portion D1 two ends turn portion D3 and top splenium D2, top pressure Portion D2 is used for the tapered outer circumferential surfaces of dieback conic mandrel bar C.Offer on the end face turning portion D3 in force application apparatus force Hexagonal opening D31.

This utility model operationally, using force application apparatus（Screwdriver）The interior hexagonal opening D31 of eccentric rotation axis D thus When the threaded portion D1 of eccentric shaft D is rotated with respect to screwed hole A11, the cone of the top splenium D2 dieback conic mandrel bar C of eccentric shaft D Shape outer peripheral face simultaneously drives conic mandrel bar C near the propulsion of the direction of bulge A2, thus promoting bulge A2 to expand to its periphery, Product is placed in bulge A2, continues to adjust eccentric shaft D, i.e. opposite direction eccentric rotation axis D, so that conic mandrel bar C Move to the direction away from bulge A2, until making bulge A2 and product fit tightly, now, each tooth of bulge A2 Shape structure A21 product clamping securely, thus ensure machining accuracy.Wherein, the effect of spring B be not frock when will bore Shape plug C fight back is in situ.Additionally, this utility model is applied to the product of general thickness, can be also used for the clamping compared with thin product, Avoid the clamping deformation of products that leads to of shakiness and the low problem of machining accuracy, thus of the present utility model applied widely.

Multiple modifications to these embodiments will be apparent from for those skilled in the art, herein Defined General Principle can be real in other embodiments in the case of without departing from spirit or scope of the present utility model Existing.Therefore, this utility model is not intended to be limited to the embodiments shown herein, and be to fit to disclosed herein Principle and the consistent scope the widest of features of novelty.

Claims

1. a kind of expansion clamp is it is characterised in that include main axis of dilatation, spring, conic mandrel bar and eccentric shaft, described main axis of dilatation bag Include pedestal and the bulge with described pedestal socket connection, in described bulge, be used for installing product, the inside of described pedestal sets It is equipped with installing hole, described spring is arranged in described conic mandrel bar, and both are installed on described installation in the hole, outside described pedestal Side face offers the screwed hole of one and described installing hole vertical connection to the inside of it, is inserted with matched in described screwed hole Described eccentric shaft；

When described eccentric shaft turns, the tapered outer circumferential surfaces of conic mandrel bar described in its dieback simultaneously drive described conic mandrel bar to close The direction propulsion of described bulge, thus promote described bulge to expand to its periphery.

2. expansion clamp according to claim 1 is it is characterised in that described bulge is connected with described pedestal grafting by multi-disc The dentalation composition connecing, under the promotion of described conic mandrel bar, described dentalation is expanded laterally.

3. expansion clamp according to claim 1 is it is characterised in that described eccentric shaft includes threaded portion and is respectively arranged on Described threaded portion two ends turn portion and top splenium, described top splenium be used for conic mandrel bar described in dieback tapered outer circumferential surfaces.

4. expansion clamp according to claim 3 is it is characterised in that offer for exerting a force on the described end face turning portion The interior hexagonal opening of device force.