CN202655784U

CN202655784U - Quick welding needle chuck

Info

Publication number: CN202655784U
Application number: CN 201120551644
Authority: CN
Inventors: 王建辉
Original assignee: Dongguan Nvt Technology Co Ltd
Current assignee: Dongguan Nvt Technology Co Ltd
Priority date: 2011-12-27
Filing date: 2011-12-27
Publication date: 2013-01-09
Anticipated expiration: 2021-12-27

Abstract

The utility model discloses a quick welding needle chuck comprising a fixing seat, a pressing block and a pressing plate, wherein two groups of holes used for mounting hinge shafts are formed on the fixing seat, and the hinge shafts are used for hinging the pressing block and the pressing plate on the fixing seat; an electrode terminal screw hole is formed on the fixing seat; a slot hole is processed on a guide block arranged on the fixing seat and inserted in a guide groove, the quick welding needle chuck is fixed on a rack, and the position of the welding needle can be adjusted along the length direction of the guide block; and a spring hole for holding a compression spring and a semi-open circular hole for holding the welding needle are also formed on the fixing seat, the spring hole and the semi-open circular hole are respectively located on the two sides of a group of hinge shafts, one end of the pressing block presses the compression spring, the other end of the pressing block presses the welding needle in the semi-open circular hole, a pin shaft passes through the middle part of the pressing block to form a lever mechanism, the fixing seat is slightly held by a hand and the free end of the pressing plate is pressed by a thumb to loosen the welding needle so as to randomly adjust the axial position of the welding needle, and when the thumb is loosened, the pressing plate automatically resets, and the welding needle is fixed.

Description

A kind of capillary quick chuck

Technical field

The utility model relates to machine equipment, is specifically related to a kind of capillary quick chuck.

Background technology

At present, the capillary clamping device of the resistance welder on the market, underaction is convenient on the axial adjusting operation of capillary, use spanner at the forward and backward needs of adjustment, by to fixing the unscrewing, screw of capillary screw on the clamping device, realize release and the clamping of capillary, operating time is long, and in the process that unscrews, screws bolt, clamping device all can be subject to by the spanner transmission come than high-torque, rotate easily distortion, make capillary axis runout precalculated position, cause bond pad locations inaccurate, thereby affect service efficiency and the welding quality of resistance welder.

The utility model content

The purpose of this utility model provides a kind of handled easily, save time, laborsaving, can guarantee after changing, adjusting capillary the capillary quick chuck that the capillary axial location does not change.

For achieving the above object, the capillary quick chuck that the utility model provides comprises a holder, and holder is designed with two groups of holes that are used for installing hinge, and hinge is housed respectively in the hole, and hinge is spliced to briquetting and pressing plate on the holder respectively; Holder is provided with a screw hole, and screw hole is used for fixing the electrode terminal of resistance welder; Also be designed with on the holder for the guide pad that inserts gathering sill, and have slotted hole, bolt is fixed to the capillary quick chuck on the frame by this slotted hole, and can carry out along the length direction of guide pad the position adjustment of capillary; Also be designed with the hole that holds Compress Spring and the half-open circular hole that holds capillary on the holder, spring eye and half-open circular hole lay respectively at the both sides of one group of hinge, one side pressure of briquetting is lived Compress Spring, the other end is pushed down the capillary in the half-open circular hole, the centre has bearing pin to pass, form a leverage, utilized the elastic force of Compress Spring capillary to be pressed abd fixed in the half-open circular hole of holder; Pressing plate is then by another hinge, also form a leverage, one side pressure is at the spring terminal of briquetting, and the other end is in free state, when the other end is subject to people's hand pressure, the pressing plate transmission of pressure is to briquetting, at this moment the briquetting Compress Spring unclamps capillary, when people's hand pressure disappears, process is opposite, and the precompression of spring is fixed capillary again by briquetting.

The utility model utilizes lever principle twice, only need with the reservation of have gentle hands holding, press the free end of pressing plate with thumb, just can unclamp capillary, regulate arbitrarily the axial location of capillary, when thumb unclamped, pressing plate automatically reset, and capillary is fixed, this operation saves time, laborsaving, flexibly, conveniently, can keep the invariant position of capillary axis after the adjustment.

Description of drawings

Fig. 1 is the utility model capillary quick chuck structural representation;

Structural representation when Fig. 2 is the utility model capillary quick chuck clamping capillary.

The specific embodiment

With reference to Fig. 1, shown in Figure 2, design a kind of capillary quick chuck, has a holder 1, link together by bearing pin 6 and briquetting 2, briquetting 2 can rotate around bearing pin 6, and holder 1 links together by bearing pin 4 and pressing plate 3, pressing plate 3 can rotate around bearing pin 4, spring 5 places between holder 1 and the briquetting 2, and briquetting 2 is subject to the precompression of spring 5, and capillary 7 is pressed abd fixed on the holder 1.

When regulating the capillary axial location, only need palm is held holder 1 gently, with thumb press pressing plate 2 free ends, pressing plate 2 can rotate around bearing pin 4, rotation direction is clockwise among Fig. 2, pressing plate 3 can compress the spring terminal of briquetting 2 simultaneously, and uses briquetting 2 to rotate around bearing pin 6, and rotation direction is counterclockwise among Fig. 2, the spring of compressive state is depressed into larger deformation, briquetting 2 pressure welding pin ends can be to the direction motion away from holder 1 simultaneously, and capillary is released, and with the another hand capillary is moved axially to correct position, unclamp the thumb of pressing pressing plate 2, under the elastic force of spring, chuck restores, and again clamps capillary.

Claims

1. capillary quick chuck is characterized in that: comprise a holder, briquetting, pressing plate, be provided with two groups of holes that are used for installing hinge at described holder, hinge is housed respectively in the hole, hinge is spliced to briquetting and pressing plate on the holder; Holder is provided with and is used for fixing resistance welder electrode terminal screw hole; Also be provided with on the holder for the guide pad that inserts gathering sill, and have slotted hole, bolt is fixed on the capillary quick chuck on the described frame by this slotted hole; On holder, also be provided with the spring eye that can hold Compress Spring and the half-open circular hole that holds capillary, described spring eye and half-open circular hole lay respectively at the both sides of one group of hinge, Compress Spring is stated in one side pressure residence of described briquetting, the other end is pushed down the capillary in the half-open circular hole, the centre has bearing pin to pass, consist of a leverage, the elastic force of Compress Spring is pressed abd fixed on capillary in the half-open circular hole of holder; Described pressing plate forms another leverage by another hinge, and a side pressure of described pressing plate is at the spring terminal of briquetting, and its other end is in free state.