Measurement and test of mechanical properties of metal is used device for dotting
Technical field
The present invention relates to and a kind ofly when measurement and test of mechanical properties of metal, original sample is carried out the device that gauge length is got ready.
Background technology
Measurement and test of mechanical properties of metal is through various mechanical tests and the measurement of correlation experimental technique in the hope of the various mechanical property criterions (index) of metal.Metal Mechanic Property research be the various different behaviors that show after stressed of metal and the phenomenon of generation; Owing to show the various mechanical properties that various behavior demonstrates after the difference of environment of living in makes metal stressed under the difference of acting force characteristics and the metal stress.The high and low of Metal Mechanic Property is the size that characterizing metal is resisted various damaging action abilities, is the main criterion of evaluation metal material quality, the main foundation of selection when carrying out intensity calculating when also being the metallic article design.Mechanics Performance Testing for metal material check, development and exploitation new material, improve quality of materials, to greatest extent bring into play the material potentiality, carry out the metallic article failure analysis, appropriate design, manufacturing, safe handling and the maintenance of guaranteeing metallic article all is absolutely necessary means.
When measuring Metal Mechanic Property, need carry out gauge length to original sample, write " use tick marks, carefully line or the thin original gauge length of line of ink marker mark " among the 8th of the GB/T228-2002 exactly, do not indicate and adopt concrete which kind of device.Each factory adopts vernier caliper directly to portray method or line of ink marker labelling method more.Adopt vernier caliper directly to portray the shortcoming of method: when test button hardness was big, mark was too shallow, does not often see mark after sample is broken, and causes the consequence that can't measure, and is prone to make vernier caliper to be worn, influence measuring accuracy and mark precision from now on; Adopt the shortcoming of line of ink marker labelling method: the one, be difficult for finding the device that can mark the thin line of ink marker; The 2nd, operation easier is big, is difficult for marking the line of ink marker in accurate position; The 3rd, inefficiency.
Chinese patent number discloses the original gauge length device for dotting of a kind of Metal Mechanic Property sample for the patent of ZL200920350494; This device is with cone headed threaded rod, a sheet metal to form by two; With nut two threaded rods are installed on the sheet metal according to needed original gauge length, are processed with a row on the sheet metal and are used to install the through hole of threaded rod and roll adjustment or process the stripe shape groove.During use, be placed on circular specimen on the V shape iron, on sample, get the mark of original gauge length with two tips of tapper.Its shortcoming is: when contacting with sample at cone headed tip, owing to be hard contact, cause cone headed tip impaired easily; In addition, when it carries out roll adjustment between two threaded rods, adopt manhole like it; Then the distance between two threaded rods is several definite values, can not be adjusted to arbitrary value, adopts the stripe shape groove like it; Also need adopt other distance-measuring equipment to come spacing, bother during use, and influence precision.
Summary of the invention
Technical matters to be solved by this invention is: provide a kind of measurement and test of mechanical properties of metal that can on sample, get the mark of original gauge length exactly to use device for dotting; And its cone headed tip is not easy impaired; The size of gauge length can be regulated arbitrarily, and adjusting is simple, precision is higher.
For addressing the above problem; The technical scheme that the present invention adopts is: measurement and test of mechanical properties of metal use device for dotting, comprises that installing plate and two have cone headed Metallic rod, and said installing plate comprises the riser of two transverse slats and two transverse slats of at least one connection; Two Metallic rod are along vertically being located in two transverse slats; And wherein have at least a Metallic rod can be in transverse slat along laterally moving, the Metallic rod between two transverse slats is provided with the boss section, boss section and between the transverse slat of bottom, be provided with spring; The afterbody of two Metallic rod is connected through a web joint; Be provided with at least one horizontal stripe shape groove in the web joint, can in transverse slat, be arranged in this stripe shape groove and can laterally move along the stripe shape groove by the afterbody of the horizontal Metallic rod that moves in edge, the transverse edge of stripe shape groove be provided with size scale.
Be provided with two guide grooves in the said every transverse slat, two Metallic rod are located in respectively in the guide groove, are provided with two stripe shape grooves in the said web joint, and the afterbody of two Metallic rod is separately positioned in the stripe shape groove.
The afterbody and the syndeton between the web joint of said Metallic rod are: the Metallic rod afterbody is provided with threaded hole, is provided with elongated slot in the web joint, is equipped with nut in the elongated slot, and nut is threaded with threaded hole mutually.
The invention has the beneficial effects as follows: above-mentioned measurement and test of mechanical properties of metal is used device for dotting, and it is simple in structure, easy to use.It is Elastic Contact between its cone headed tip and the sample, thereby it is impaired that cone headed tip is not easy in use; In addition, the transverse edge of its stripe shape groove is provided with size scale, can regulate range finding arbitrarily with reference to scale during use, and adjusting is simple and precision is higher.
Description of drawings
Fig. 1 is a main TV structure synoptic diagram of the present invention;
Fig. 2 is the plan structure synoptic diagram of web joint among Fig. 1;
Fig. 3 is the sectional structure synoptic diagram of A-A direction among Fig. 2;
Among the figure: 1, Metallic rod, 11, nose cone, 12, the boss section, 2, transverse slat, 21, guide groove, 3, riser, 4, spring, 5, web joint, 6, the stripe shape groove, 7, size scale, 8, elongated slot, 9, nut.
Embodiment
Through specific embodiment measurement and test of mechanical properties of metal of the present invention is done further to describe in detail with device for dotting below.
As shown in Figure 1, measurement and test of mechanical properties of metal is used device for dotting, comprises installing plate and two Metallic rod 1 that have nose cone 11; Said installing plate comprises two transverse slats 2 and at least one riser 3 that connects two transverse slats 2; Two Metallic rod 1 are along vertically being located in two transverse slats 2, and wherein have at least a Metallic rod 1 can be in transverse slat 2 along laterally moving, the Metallic rod 1 between two transverse slats 2 is provided with boss section 12; Boss section 12 and between the transverse slat 2 of bottom, be provided with spring 4; The afterbody of two Metallic rod 1 is connected through a web joint 5, like Fig. 2, shown in Figure 3, is provided with at least one horizontal stripe shape groove 6 in the web joint 5; Can in transverse slat 2, be arranged in this stripe shape groove 6 and can laterally move along stripe shape groove 6 by the afterbody of the horizontal Metallic rod 1 that moves in edge, the transverse edge of stripe shape groove 6 be provided with size scale 7.
As preferred version, be provided with 21, two Metallic rod 1 of two guide grooves in the said every transverse slat 2 and be located in respectively in the guide groove 21, the afterbody that is provided with 6, two Metallic rod 1 of two stripe shape grooves in the said web joint 5 is separately positioned in the stripe shape groove 6.
As preferred version; Syndeton between the afterbody of said Metallic rod 1 and the web joint 5 is: Metallic rod 1 afterbody is provided with the threaded hole (not shown), and is as shown in Figure 3, is provided with elongated slot 8 in the web joint 5; Be equipped with nut 9 in the elongated slot 8, nut 9 is threaded with threaded hole mutually.Certainly, can also be accomplished in several ways between the afterbody of Metallic rod 1 and the web joint 5 and be connected,, all belong to protection category of the present invention as adopting modes such as pin is fixing.
Principle of work of the present invention is: in use, be placed on sample on the V shape iron, according to the required gauge length of getting mark; And with reference to the size scale on the web joint 57, regulate, fix with the afterbody and the web joint 5 of nut 9 then Metallic rod 1 along horizontal moving metal bar 1; Make the device vertical level, firmly press lower connecting plate 5, this moment, Metallic rod 1 vertically moved in installing plate; Contact and accomplish and get ready with sample, in this process, spring 4 is in compressive state; Be Elastic Contact thereby make between tip and the sample of nose cone 11, thereby can make the tip of nose cone 11 be not easy impaired; In addition, the transverse edge of its stripe shape groove 6 is provided with size scale 7, can regulate range finding arbitrarily with reference to scale during use, and adjusting is simple and precision is higher.
The above embodiments are the principle and the effect thereof of illustrative the invention only, and the embodiment of part utilization, but not is used to limit the present invention; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the invention design, can also make some distortion and improvement, these all belong to protection scope of the present invention.