CN201270368Y

CN201270368Y - Integrated hydraulic tongs

Info

Publication number: CN201270368Y
Application number: CNU2008201539264U
Authority: CN
Inventors: 施小锋
Original assignee: SHANGHAI MELEC ELECTRIC POWER EQUIPMENT CO Ltd
Current assignee: SHANGHAI MELEC ELECTRIC POWER EQUIPMENT CO Ltd
Priority date: 2008-10-10
Filing date: 2008-10-10
Publication date: 2009-07-08
Anticipated expiration: 2018-10-10

Abstract

The utility model relates to an integral type hydraulic pincers, which comprises a pincers head and a positioning mould, wherein the positioning mould is in a V-shape, a first steel ball with spring structure for positioning the V-shaped positioning mould is arranged on the side of the pincers head, and structure with a male and a female buckled inside and outside is contacted with the positioning mould at the two positions on the front end of the pincers head, two second steel balls with spring structure for positioning a holding fixture are arranged in the middle of the positioning mould, and penetrate into the positioning groove of the holding fixture, and one or two positioning grooves of the holding fixture are provided. The holding fixture is connected by adopting two connection sheets for symmetrical arcs, the inner sides of the arcs are consistent with the outer circle of a connector, and the outer sides of the arcs are inosculated with the taper of the positioning mould. A taper pressing head which is arranged on the back end of a positioning fixture corresponding to the positioning fixture is further provided, and the taper pressing head is inserted into the center hole of a piston. The integral type hydraulic pincers can completely press the connector after being used on tools with same force, and can press copper aluminum terminals in construction, such as only needing clamping CAL-240BS twice, is time-saving, and reduces workload.

Description

The integral hydraulic pincers

Technical field

The utility model relates to a kind of connection construction hydraulic tongs (model is JM-240AL) that is applicable to electric wire in the power circuit, relates in particular to the binding clip of this hydraulic tongs.

Background technology

In the work progress of power circuit, often need use the instrument crimping to continue conduct power the joint of power cable.

As seen from Figure 1: the hexagonal jaw of hexagonal mould pincers press tool hexagonal mould 100 when the construction pincers are pressed contacts fully with the Power tabs cylindrical, for making resistance as far as possible little, must press joint more closely knit, but be subjected to the exert oneself restriction of scope of conventional hydraulic pressure, big square joint length increases, but each pincers pressure surface must be still less enough densification joint and lead, manufacturers all take to reduce the method for the pincers press contacts face that clamps pressing mold and joint, big so slightly square joint just has only the pincers of increasing to press number of times, for example: construction crimping copper aluminium terminal CAL-240BS need clamp and press 8 times, increased the construction working amount, construction is slow, and efficient is low.Among the figure: binding clip 200.

Summary of the invention

The utility model technical issues that need to address have provided a kind of integral hydraulic pincers, are intended to solve the above problems.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model comprises: binding clip, positioning module; Described positioning module is " V " type shape; On the side side of binding clip, establish spring structure, in order to first steel ball of location V-type positioning module, in front end two places of binding clip and the structure of detaining inside and outside contacting of positioning module is male and female; Establish in the centre of positioning module two spring structures, extend in the location notch of anchor clamps in order to second steel ball of positioning fixture; The location notch of described anchor clamps has one or two; Described anchor clamps adopt two symmetrical circular arcs to connect with brace, and the inboard of circular arc is with joint cylindrical unanimity, and the outside of circular arc and positioning module tapering coincide; Also comprise: rear end that is arranged on positioning fixture, with the corresponding conical indenter of positioning fixture; Described conical indenter inserts in the centre bore of piston.

Compared with prior art, the beneficial effects of the utility model are: be used for the complete densification joint of energy on the identical instrument of exerting oneself, at construction crimping copper aluminium terminal, for example: CAL-240BS only need clamp and press 2 times; Save time, reduced workload.

Description of drawings

Fig. 1 is a hexagonal mould pincers press tool structural representation in the prior art;

Fig. 2 is the utility model structural representation;

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

As seen from Figure 2: the utility model comprises: binding clip 1 and positioning module 2; Described positioning module 2 is " V " type shape; On the side side of binding clip 1, establish spring structure, in order to first steel ball 10 of location V-type positioning module 2, in front end two places of binding clip 1 and the structure 4 of detaining inside and outside contacting of positioning module 2 is male and female; Establish in the centre of positioning module 2 two spring structures, extend in the location notch of anchor clamps 8 in order to second steel ball 3 of positioning fixture 8; The location notch of described anchor clamps 8 has one or two; Described anchor clamps 8 adopt two symmetrical circular arcs to connect with brace 9, and the inboard of circular arc is with joint cylindrical unanimity, and the outside of circular arc and positioning module 2 taperings coincide; Also comprise: rear end that is arranged on positioning fixture 8, with positioning fixture 8 corresponding conical indenters 7; Described conical indenter 7 inserts in the centre bore of piston 6;

Described conical indenter 7 inserts in the centre bore of pistons 6 by one and is placed in the piston 6, connects in the cannelure with the bayonet catch 5 insertion conical indenters 7 of spring structure.

Take the utility model, be used for the complete densification joint of energy on the identical instrument of exerting oneself, for example: construction crimping copper aluminium terminal CAL-240BS, 1) at first the aluminum pipe of copper aluminium terminal is partly put into anchor clamps 8, make the aluminum pipe mouth of pipe concordant with the end face of anchor clamps 8; 2) then that adaptive cable gymnosis is the same with junction block endoporus length, the part of gymnosis are pressed construction requirement and are handled, and end face, use the wire brush bristle, in the aluminum pipe of insertion copper aluminium terminal joint at surperficial coating conductive paste; 3) beginning pincers presses, the both hands handgrip that pressurizes repeatedly, oil pump is exerted oneself, promote piston 6, the tapered pressure head 7 that piston 6 promotions are attached thereto, the pressurization handgrip that keeps, tapered pressure head 7 is clamp-oned the pipe portion of joint, location-plate up to tapered pressure head 7 contacts with the upper surface of anchor clamps 8, i.e. expression crimping is for the first time finished; 4) open oil return apparatus, make backward stroke of the piston, tapered pressure head is return, the end of pincers pressure for the first time smoothly also; 5) carry out the crimping second time then, joint is motionless, and mobile anchor clamps 8 make second steel ball 3 of positioning module 2 stretch into another location notch internal fixation of anchor clamps 8, then set by step 3) 4) finish for the second time pincers and press, promptly finish the crimping of whole copper aluminium terminal.This joint only need clamp presses 2 times, saves time, and has reduced workload, takes to add long handle to reach the labor-saving effect, has improved efficiency of construction.And the pattern test of carrying out each relevant item by test laboratory meets IEC fully, can surpass the effect that the hexagonal pincers are pressed.

Claims

1. integral hydraulic pincers comprise: binding clip (1) and positioning module (2); It is characterized in that: described positioning module (2) is " V " type shape; On the side side of binding clip (1), establish spring structure, in order to first steel ball (10) of location V-type positioning module (2), be the inside and outside structure (4) of detaining of male and female front end two places and the contacting of positioning module (2) of binding clip (1); Establish in the centre of positioning module (2) two spring structures, extend in the location notch of anchor clamps (8) in order to second steel ball (3) of positioning fixture (8); The location notch of described anchor clamps (8) has one or two; Described anchor clamps (8) adopt two symmetrical circular arcs to connect with brace (9), and the inboard of circular arc is with joint cylindrical unanimity, and the outside of circular arc and positioning module (2) tapering coincide; Also comprise: rear end that is arranged on positioning fixture (8), with the corresponding conical indenter (7) of positioning fixture (8); Described conical indenter (7) inserts in the centre bore of piston (6).

2. integral hydraulic according to claim 1 pincers is characterized in that: described conical indenter (7) inserts in the centre bore of piston (6) by connecting in the cannelure that is placed in the piston (6), inserts with the bayonet catch (5) of spring structure conical indenter (7).