Toughness test mold and test machine

Abstract

The utility model discloses a toughness testing mould and a testing machine, and belongs to the field of toughness testing, the toughness testing mould comprises a first mould body, the first mould body is provided with an arc-shaped groove and two clamping grooves, and the two clamping grooves are respectively communicated with two sides of the arc-shaped groove; the first mounting column is connected with the first mold body; the second die body is matched with the arc-shaped groove; and the second mounting column is connected with the second mold body. The utility model has the technical effect that the specific toughness of materials with better toughness, such as semi-conductive shielding materials and the like, can be conveniently judged.

Description

TECHNICAL FIELD

[0001] The utility model relates to tenacity test, especially a kind of tenacity test mould and testing machine. BACKGROUND

[0002] Tenacity is a kind of for indicating the energy absorption capacity of material in plastic deformation and rupture process, the better tenacity of material, the less possibility of brittle fracture.

[0003] When the tenacity of poor material such as polyvinyl chloride (PVC), polyester resin (PET) is tested, pendulum is generally used to impact the material with fixed notch to make the material fracture to determine the specific tenacity of material, but pendulum is difficult to make the tenacity of good material such as semiconductive shielding material fracture by impact, so that the specific tenacity of tenacity of good material such as semiconductive shielding material is difficult to determine. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of tenacity test mould, it is convenient to judge the specific tenacity of tenacity of good material such as semiconductive shielding material;The utility model also aims at providing a kind of testing machine.

[0005] Technical scheme

[0006] A kind of tenacity test mould, comprising:

[0007] First die body, the first die body is equipped with arc-shaped groove and two clamping slots, two the clamping slot is respectively communicated at the two sides of the arc-shaped groove;

[0008] First mounting column connected with the first die body;

[0009] Second die body matched with the arc-shaped groove;

[0010] Second mounting column connected with the second die body.

[0011] Optionally, the second die body includes mutually connected die body one and die body two, the second mounting column is connected with the die body one, the die body two is matched with the arc-shaped groove, the thickness of the die body one is greater than the thickness of the die body two.

[0012] Optionally, both sides of the connecting portion of the die body one and the die body two are equipped with inclined part.

[0013] Optionally, the connection mode of the die body one and the die body two is integrally connected.

[0014] Optionally, it further includes first mounting hole arranged in the first mounting column.

[0015] Optionally, a second mounting hole is arranged on the second mounting column.

[0016] Optionally, the two clamping grooves are symmetrically distributed about the arc-shaped groove.

[0017] A testing machine comprises a toughness testing mold, and further comprises:

[0018] A rack, the first mounting column and the rack are connected;

[0019] A driver connected with the rack, a driving shaft of the driver is connected with the second mounting column;

[0020] A deformation measuring instrument;

[0021] A controller electrically connected with the driver and the deformation measuring instrument.

[0022] Beneficial effects: when the spline and the arc-shaped groove are not in contact, the deformation of the spline is significantly increased with the increase of the second mold body force, thereby drawing a first change curve; when the spline and the arc-shaped groove are in contact, the deformation of the spline is slowly increased with the increase of the second mold body force, thereby drawing a second change curve, and a mutation point is formed at the junction of the first change curve and the second change curve; the greater the second mold body force corresponding to the mutation point, the better the toughness of the spline, thereby facilitating the judgment of the specific toughness of the material with better toughness such as the semi-conductive shielding material. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is an explosion view of the toughness testing mold of the embodiment 1 of the utility model;

[0024] Figure 2 It is a matching view of the toughness testing mold of the embodiment 1 of the utility model;

[0025] Figure 3 It is a toughness testing curve view of the embodiment 1 of the utility model;

[0026] In the drawing: 1, first mold body; 11, arc-shaped groove; 12, clamping groove; 13, first mounting column; 131, first mounting hole; 2, second mold body; 21, mold body one; 22, mold body two; 23, second mounting column; 231, second mounting hole; 24, slope part; 3, spline; 41, first change curve; 42, second change curve; 43, mutation point. DETAILED DESCRIPTION

[0027] In order to make the technical scheme of the utility model more clear, the utility model is further described in detail in combination with the drawings and specific embodiments.

[0028] Embodiment 1

[0029] As Figures 1-3 , the embodiment provides a toughness test mold, which comprises: a first mold body 1, which is provided with an arc-shaped groove 11 and two clamping grooves 12, the two clamping grooves 12 are respectively communicated with two sides of the arc-shaped groove 11; a first mounting column 13 connected with the first mold body 1; a second mold body 2 matched with the arc-shaped groove 11; and a second mounting column 23 connected with the second mold body 2.

[0030] Specifically, during toughness testing, a sample 3 made of a material with good toughness such as semi-conductive shielding material is first placed in the two clamping grooves 12, and then the sample 3 is extruded towards the first mold body 1 by the second mold body 2, when the sample 3 does not contact the arc-shaped groove 11, the deformation of the sample 3 increases significantly with the increase of the force of the second mold body 2, thereby a first change curve 41 is drawn, when the sample 3 contacts the arc-shaped groove 11, the deformation of the sample 3 increases slowly with the increase of the force of the second mold body 2, thereby a second change curve 42 is drawn, and a mutation point 43 is formed at the junction of the first change curve 41 and the second change curve 42, if the force of the second mold body 2 corresponding to the mutation point 43 is greater, it indicates that the toughness of the sample 3 is better, thereby the specific toughness of the material with good toughness such as semi-conductive shielding material can be conveniently judged, it should be noted that Figure 3 different colors of the test curves represent test curves of different materials, and the embodiment takes a red test curve as an example for description. The first mounting column 13 is convenient for fixing the first mold body 1 on a related test machine; the second mounting column 23 is used for connecting a driving shaft of a related driver and the second mold body 2, and the driving shaft of the related driver is convenient for driving the second mold body 2 to press down.

[0031] Further, as Figures 1-2 , the second mold body 2 comprises a mold body one 21 and a mold body two 22 connected with each other, the second mounting column 23 is connected with the mold body one 21, the mold body two 22 is matched with the arc-shaped groove 11, and the thickness of the mold body one 21 is greater than that of the mold body two 22. Specifically, the thickness of the mold body one 21 is relatively large, which is convenient for making the connection area of the mold body one 21 and the second mounting column 23 large, thereby making the connection of the mold body one 21 and the second mounting column 23 firm, and the thickness of the mold body two 22 is relatively small, which is convenient for making the fit of the mold body two 22 and the sample 3 good, thereby making the fit of the sample 3 and the arc-shaped groove 11 good.

[0032] Further, as Figures 1-2 , both sides of the connection position of the mold body one 21 and the mold body two 22 are provided with a slope part 24. Specifically, the slope part 24 is convenient for making the transition of the connection position of the mold body one 21 and the mold body two 22 smooth.

[0033] Further, as Figures 1-2The connection mode of the first die body 21 and the second die body 22 is integrally formed connection.

[0034] Further, the first die body 21 is provided with a first mounting column 13. Figures 1-2 The first mounting column 13 is provided with a first mounting hole 131.

[0035] Further, the second die body 22 is provided with a second mounting column 23. Figures 1-2 The second mounting column 23 is provided with a second mounting hole 231.

[0036] Further, the two clamping grooves 12 are distributed in axial symmetry with respect to the arc-shaped groove 11. Figures 1-2 The two clamping grooves 12 are distributed in axial symmetry with respect to the arc-shaped groove 11.

[0037] The embodiment further provides a testing machine, which comprises the toughness testing die and further comprises a rack, a first mounting column 13 connected with the rack, a driver connected with the rack, a driving shaft of the driver connected with the second mounting column 23, a deformation measuring instrument and a controller electrically connected with the driver and the deformation measuring instrument.

[0038] Specifically, the rack is used for bearing the first mounting column 13, the driver and the like; the driving shaft of the driver is used for driving the second mounting column 23 to move up and down, so as to press the sample 3 by the second die body 2; the driver can be a hydraulic driver, a pneumatic driver or the like; the deformation measuring instrument is used for detecting the deformation of the sample 3; the deformation measuring instrument can be a strain gauge or a displacement sensor, wherein the strain gauge needs to be pasted on the sample 3, and the displacement sensor only needs to be connected to the rack; and the controller is used for controlling the driver and the deformation measuring instrument.

[0039] The above embodiment only expresses several implementation manners of the utility model, and the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent range. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the utility model, a plurality of deformations and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A toughness test mold characterized by, The utility model relates to a kind of toughness test mould, including: First mould detail (1), the first mould detail (1) is equipped with arc-shaped recess (11) and two clamping slots (12), two The clamping slot (12) is communicated with the two sides of the arc-shaped recess (11) respectively; First mounting column (13) connected with the first mould detail (1); Second mould detail (2) matched with the arc-shaped recess (11); Second mounting column (23) connected with the second mould detail (2).

2. A toughness test mold according to claim 1, wherein The second mould detail (2) includes mould body one (21) and mould body two (22) interconnected, the second mounting column (23) and mould body one (21) are connected, mould body two (22) and the arc-shaped recess (11) are matched, the thickness of mould body one (21) is greater than the thickness of mould body two (22).

3. A ductility test die according to claim 2, wherein, Both sides of the junction of mould body one (21) and mould body two (22) are equipped with slope portion (24).

4. A ductility test die according to claim 2, wherein The connection mode of mould body one (21) and mould body two (22) is integrally connected.

5. A toughness test mould according to any one of claims 1 to 4, characterised in that, It further includes first mounting hole (131) arranged in the first mounting column (13).

6. A toughness test mould according to any one of claims 1 to 4, characterised in that, It further includes second mounting hole (231) arranged in the second mounting column (23).

7. A toughness test mold according to any one of claims 1-4, wherein, Two The clamping slot (12) is axially symmetrical distribution about the arc-shaped recess (11).

8. A testing machine characterized by, The utility model relates to a kind of toughness test mould, including as any one of claims 1-7, further including: Frame, the first mounting column (13) and the frame are connected; Driver connected with the frame, the driving shaft of the driver and the second mounting column (23) are connected; Deformation measuring instrument; Controller electrically connected with the driver and the deformation measuring instrument.

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