CN103986094A - Wire stripping device for thermoelectric couple used in testing laboratory - Google Patents

Abstract

The invention discloses a wire stripping device for a thermoelectric couple used in a testing laboratory. The wire stripping device for the thermoelectric couple used in the testing laboratory comprises two pressing fit clamps designed symmetrically, the two clamps are connected through guide pillars, grooves are formed in the sides, opposite to each other, of the two clamps, a first gap and a second gap are formed in the two clamps in the direction perpendicular to the grooves, and blades are arranged in the first gap and the second gap respectively. The thermoelectric couple is arranged at the positions of the grooves in the clamps, the blade in the first gap cuts an outer insulating layer of the thermoelectric couple, the blade in the second gap cuts an inner insulating layer of the thermoelectric couple, after an operator fixes the position of the thermoelectric couple, after the two clamps are pressed, the inner insulating layer and the outer insulating layer can be stripped at the same time by pulling the thermoelectric couple out of the two clamps, the welding of a hot end of the wire of the thermoelectric couple and the mounting of a cold end of the wire of the thermoelectric couple can be carried out conveniently, and the wire stripping device is safe, easy and convenient to operate.

Description

A kind of testing laboratory thermocouple punck-down block

Technical field

The present invention relates to a kind of punck-down block, particularly testing laboratory thermocouple punck-down block.

Background technology

CTL-OP 108 technical specifications (CTL-OP 108-Ed.1, Laboratory Procedure for Preparation, Attachment, Extension and Use of Thermocouples[S] .Geneva: IECEE-CTL Secretariat, 2004) there is following code requirement to making thermocouple: 1, peel off inner insulating layer apart from the about 1.5mm in thermo-electric metal pad top; 2, peel off external insulation layer apart from thermo-electric metal pad top 15mm; In, the distance of external insulation layer will be controlled at 13.5mm.

Laboratory is used the instruments such as blade, pocket knife and ruler to peel off external insulation layer in thermocouple conventionally, laboratory is often used wire diameter for 0.320mm(28AWG) or thermocouple 0.254mm(30AWG), because of its wire diameter thinner, easy scratching fingers when insulation is peeled off to thermocouple therefore operating personnel use blade or pocket knife; While passing through blade peel manually from outer layer insulation in addition, also easily scratch primary insulation, cause primary insulation lost efficacy or came off, at this moment operating personnel have to reselect one section of new thermocouple and operate, not only waste thermocouple material, also caused repetitive operation; Rely on ruler and pocket knife to peel off external insulation layer in thermocouple, except complex operation, the distance of interior external insulation layer is also difficult to be controlled at 13.5mm left and right in addition, causes the thermocouple of making not meet correlation technique code requirement.

Summary of the invention

The object of this invention is to provide a kind of safe, simple to operation, the testing laboratory's thermocouple punck-down block that can simultaneously peel off external insulation layer in thermocouple.

A kind of testing laboratory of the present invention thermocouple punck-down block, comprise symmetrically arranged upper lower clamp, upper lower clamp all has through hole, in described through hole, be provided with lead, upper lower clamp is by lead relative motion, the mutual interface correspondence position of upper lower clamp is provided with the groove of placing thermocouple, be provided with the first gap and the second gap at upper lower clamp correspondence position, the first gap is vertical with groove with the second gap, in the first gap and the second gap, be respectively placed with the blade for cutting stripping thermocouple insulating barrier, the knife edge of blade is lower than the plane at gap opening place and higher than the low end face of groove, the knife edge of the blade in the second gap apart from the height of the low end face of groove higher than the knife edge of the blade in the first gap the height apart from the low end face of groove.

A kind of testing laboratory of the present invention thermocouple punck-down block, upper lower clamp is realized relative motion by lead.Strip off external insulation layer in thermocouple in order to realize simultaneously, the present invention is provided with the first gap and the second gap at upper lower clamp correspondence position, the first gap and the second gap are respectively placed with blade, the knife edge of the blade in the second gap apart from the height of the low end face of groove higher than the knife edge of the blade in the first gap the height apart from the low end face of groove.In addition, the knife edge of blade is lower than the plane at gap opening place and higher than the low end face of groove, operating personnel are not easy to touch the knife edge of blade, safe operation process.Thermocouple punck-down block of the present invention, first thermocouple is placed on to the groove location on fixture, the blade in the first gap hobs thermocouple outer insulation, the blade in the second gap hobs ectonexine insulating barrier simultaneously, and operating personnel fix after thermocouple location, presses after two fixtures, thermocouple is extracted when can realizing interior external insulation layer and peeled off from two fixtures, to carry out the welding in thermocouple wire hot junction and the installation of cold junction, handling safety, simple and convenient.

Brief description of the drawings

Fig. 1 is a kind of testing laboratory of the present invention thermocouple punck-down block structural representation.

Fig. 2 is the structural representation of testing laboratory of the present invention thermocouple punck-down block while being provided with multiple different groove.

Fig. 3 is the structural representation of use for laboratory thermocouple punck-down block of the present invention while being provided with location hole.

Fig. 4 is use for laboratory thermocouple punck-down block blade structure schematic diagram a of the present invention.

Fig. 5 is use for laboratory thermocouple punck-down block blade structure schematic diagram b of the present invention.

Embodiment

A kind of testing laboratory thermocouple punck-down block as shown in Figure 1, comprise symmetrically arranged upper and lower cuboid fixture 1, upper lower clamp 1 correspondence position all has column through hole, in through hole, be provided with column lead 2, lead 2 is just fitted with through hole, upper lower clamp 1 is by lead 2 relative motions, the mutual interface correspondence position of upper lower clamp 1 is provided with the groove 3 of placing thermocouple, be provided with the first gap 4 and the second gap 5 at upper lower clamp 1 correspondence position, the first gap 4 is vertical with groove with the second gap 5, in the first gap 4, be placed with the blade of cutting stripping thermocouple external insulation layer, in the second gap 5, be placed with the blade of simultaneously cutting stripping thermocouple external insulation layer and inner insulating layer, the knife edge of blade is lower than the plane at gap opening place and higher than the low end face of groove, the knife edge of the blade in the second 5 li, gap apart from the height of the low end face of groove higher than the knife edge of the blade in the first gap 4 height apart from the low end face of groove.

As shown in Figure 4, the knife edge 9 of blade arranges the arcuate structure concaving, and arc is consistent with the shape of external insulation layer in thermocouple, can allow the insulating barrier of the knife edge and thermocouple fit, press lower clamp cut stripping thermocouple interior external insulation layer time more laborsaving, cut stripping better effects if.

As shown in Figure 5, the first gap of upper fixture and the first gap of lower clamp can be angle setting, the direction that the direction of angle moves with thermocouple wire is consistent, the blade of installing in it is relative, be equally angle setting, when thermocouple cable is placed in groove, the knife edge of upper bottom knife enters cable epidermis from both sides oblique cutting, and the knife edge tilts to the opposite side of cable moving direction.When pull by thermocouple cable time, be inserted in the knife edge that in wire covering, the opposite side to cable moving direction tilts, under the effect of pulling force, can very easily epidermis be cut and be cut off, thereby be very easy to the cable epidermis of thermocouple, it can use very little power to realize the cutting of epidermis, can avoid the excessive thermocouple fracture causing of pulling force.Simple to operate, safe and reliable.

Equally in order more easily to cut thermocouple cable epidermis, avoid thermocouple cutting process Fracture, the second gap of upper fixture and the second gap of lower clamp also can be angle setting, the direction that the direction of angle moves with thermocouple wire is equally consistent, the blade of installing in it is relative, is equally angle setting, when thermocouple cable is placed in groove, the knife edge of the upper bottom knife in the second gap enters cable epidermis from both sides oblique cutting, and the knife edge tilts to the opposite side of cable moving direction.

As shown in Figure 2, can respectively be provided with the different grooves of multiple width at two fixtures.In laboratory, commonly using wire diameter is 0.320mm(28AWG) or thermocouple 0.254mm(30AWG), the width that can make one of them groove 3 is 0.320mm, peel off the needs of interior external insulation layer to meet wire diameter as the thermocouple of 0.320mm, the width that makes one of them groove 6 is 0.254mm, peels off the needs of interior external insulation layer to meet wire diameter as the thermocouple of 0.254mm.Fixture on a thermocouple punck-down block arranges the different grooves of multiple width, to meet the needs of different wire diameter thermocouple stripping insulation layers.

In addition, the bottom of groove is preferably arc surface, and it can coincide with the arcuate structure of thermocouple insulating barrier, can allow the thermocouple being pressed between two fixture grooves be not easy skew, the better effects if of stripping insulation layer.

The first gap and the second gap arrange the 13.5mm of being separated by, in laboratory, relevant technical requirement needs the 13.5mm of being separated by between interior external insulation layer, by the first gap and the second gap are arranged to the 13.5mm of being separated by, while peeling off thermocouple, just can realize the interior external insulation layer 13.5mm of being separated by.

As shown in Figure 3, be respectively provided with the location hole 7 in order to fixed blade position on two fixtures, blade is replaceable, only blade need be fixed on to location hole, simple and convenient.

Claims (7)

1. testing laboratory's thermocouple punck-down block, it is characterized in that: comprise symmetrically arranged upper lower clamp, upper lower clamp all has through hole, in described through hole, be provided with lead, upper lower clamp is by lead relative motion, upper lower clamp apposition position arranges relative groove, in order to form the hole of placing thermocouple, also be provided with two groups of relative gaps at upper lower clamp, the first gap and the second gap, in the first gap and the second gap, be respectively placed with the blade for cutting stripping thermocouple ectonexine insulating barrier, the knife edge of blade is lower than the plane at gap opening place and higher than the low end face of groove, the knife edge of the blade in the second gap apart from the height of the low end face of groove higher than the knife edge of the blade in the first gap the height apart from the low end face of groove.

2. a kind of testing laboratory according to claim 1 thermocouple punck-down block, is characterized in that: the knife edge of described blade is the arcuate structure concaving.

3. a kind of testing laboratory according to claim 1 thermocouple punck-down block, is characterized in that: the blade in the first gap is at the height of bottom portion of groove and the consistency of thickness of thermocouple external insulation layer; The blade in the second gap is consistent with the gross thickness of external insulation layer in thermocouple at the height of bottom portion of groove.

4. a kind of testing laboratory according to claim 1 thermocouple punck-down block, is characterized in that: the bottom of described groove is arc surface.

5. a kind of testing laboratory according to claim 1 thermocouple punck-down block, is characterized in that: the relative groove of upper and lower fixture apposition position setting has multipair, each width to groove is different.

6. according to a kind of testing laboratory thermocouple punck-down block described in any one in claim 1 to 5, it is characterized in that: upper the first gap of fixture and the first gap of lower clamp can be angle setting, the direction that the direction of angle moves with thermocouple wire is consistent, the blade of installing in it is relative, be equally angle setting, when thermocouple cable is placed in groove, the knife edge of upper bottom knife enters cable epidermis from both sides oblique cutting, and the knife edge tilts to the opposite side of cable moving direction.

7. a kind of testing laboratory according to claim 6 thermocouple punck-down block, it is characterized in that: upper the second gap of fixture and the second gap of lower clamp are angle setting, the direction that the direction of angle moves with thermocouple wire is consistent, the blade of installing in it is relative, be equally angle setting, when thermocouple cable is placed in groove, the knife edge of the upper and lower blade of installing in the second gap of upper and lower fixture enters cable epidermis from both sides oblique cutting, and the knife edge tilts to the opposite side of cable moving direction.