CN108225913B

CN108225913B - Plastic spare and accessory part fatigue resistance detection device

Info

Publication number: CN108225913B
Application number: CN201711460291.2A
Authority: CN
Inventors: 肖行亦
Original assignee: Huizhou Suoling Precision Plastic Co ltd
Current assignee: Huizhou Suoling Precision Plastic Co ltd
Priority date: 2017-12-28
Filing date: 2017-12-28
Publication date: 2020-09-29
Anticipated expiration: 2037-12-28
Also published as: CN108225913A

Abstract

The invention relates to a plastic part fatigue resistance detection device, which comprises: the device comprises a supporting seat, a base, a first clamping piece, a second clamping piece, a heating piece, a sliding mounting seat, a detection piece and a power piece; the base is provided with a heating gap; the sliding installation seat is arranged on the base and is provided with a scale; the heating element is connected with the supporting seat and penetrates through the heating notch; the detection piece comprises a fixed clamp, a sliding block and an indicating needle, wherein the fixed clamp comprises a first clamping plate and a second clamping plate; the sliding block is connected with the sliding mounting seat in a sliding mode, the indicating needle is arranged on the sliding block, and the tail end of the indicating needle faces the scale; the power piece sets up on the base, and the output of power piece is connected with the piece that slides. The fatigue resistance detection device for the plastic parts reads and records the angle number of the scale, integrates the temperature in the test space, and can judge the fatigue resistance degree of the plastic parts to be tested under the environmental condition, thereby accurately detecting the fatigue resistance of the plastic products.

Description

Plastic spare and accessory part fatigue resistance detection device

Technical Field

The invention relates to the technical field of plastic detection, in particular to a fatigue resistance detection device for plastic parts.

Background

The plastics are mainly composed of carbon, hydrogen, oxygen, nitrogen and other organic or inorganic elements, the finished product is a solid and is a molten liquid in the manufacturing process, so that the plastics can be heated to melt, pressurized to flow and cooled to solidify, and the plastics are formed into various shapes. The tests of high temperature resistance, stress cracking resistance and other fatigue resistance of plastics are very important and necessary works before the use of plastic materials, so as to ensure that plastic products can meet the related performance requirements of practical application.

With the development of science and technology and social economy, the progress of science and technology is affecting social economy and changing the life style of people. Particularly in the field of plastics, products made of plastics are widely used in common households, such as plastic housings for car navigation or operation panel frames for car navigation. In the summer of high temperature in south China, when the automobile is placed outdoors, the plastic shell of the automobile navigation or the operation panel frame of the automobile navigation can be in a high-temperature state, and the fatigue resistance of the plastic material is particularly important.

It can be known that, since the plastic parts and components are subjected to fatigue cracking and deformation due to high temperature and stress changes under the conditions of high temperature and external force for a long time, the sealing performance of the plastic parts and components and the integrity of the products are damaged, and thus the reliability of the plastic products cannot be ensured, the stress of the plastic material in a high-temperature environment has a very serious influence on the reliability and safety of the plastic products, and it is necessary to test the fatigue resistance of the plastic material.

Disclosure of Invention

Therefore, it is necessary to provide a fatigue resistance detection device for plastic parts, which aims at the technical problem of accurately detecting the fatigue resistance of plastic products.

A plastic spare and accessory part fatigue resistance detection device comprises: the device comprises a supporting seat, a base, a first clamping piece, a second clamping piece, a heating piece, a sliding mounting seat, a detection piece and a power piece; the supporting seat is provided with an installation groove; the base is arranged in the mounting groove, and a heating notch is formed in the base; the first clamping piece and the second clamping piece are oppositely arranged on the base, a testing space is formed between the first clamping piece and the second clamping piece, and the first clamping piece and the second clamping piece are jointly used for clamping a plastic part to be tested into the testing space; the sliding installation seat is arranged on the base and is provided with a scale; the heating element is connected with the supporting seat and penetrates through the heating gap, the heating gap corresponds to the test space, and the heating element is used for heating air around the test space; the detection piece comprises a fixed clamp, a sliding block and an indicating needle, the fixed clamp comprises a first clamping plate and a second clamping plate, the first clamping plate is connected with the sliding block, the second clamping plate is connected with the first clamping plate in a sliding mode, an adjustable clamping space is formed between the first clamping plate and the second clamping plate, and the clamping space corresponds to the test space; the sliding block is connected with the sliding mounting seat in a sliding mode, the indicating needle is arranged on the sliding block, and the tail end of the indicating needle faces the scale; the power part is arranged on the base, the output end of the power part is connected with the sliding block, and the power part is used for driving the sliding block to move.

In one embodiment, the mounting groove has a rectangular structure.

In one embodiment, the mounting slot is engaged with the base.

In one embodiment, the height of the base is equal to the depth of the mounting groove.

In one embodiment, the first clamping piece and the second clamping piece are respectively positioned at two sides of the heating notch.

The fatigue resistance detection device for the plastic part comprises a first clamping piece, a second clamping piece, a heating piece, a driving piece, a sliding block and a fixed clamp, wherein the first clamping piece and the second clamping piece are used for clamping the plastic part to be tested into a test space, the first clamping piece and the second clamping piece are used for clamping the plastic part to be tested again, the heating piece is started to heat the plastic part to be tested in the test space, after the test space is heated for a preset time to be in a high-temperature state, the driving piece is started to drive the sliding block to slide along the vertical direction of the sliding installation seat, the fixed clamp is driven to move, the plastic part to be tested is stressed and deformed, the stress generated by the plastic part to be tested at the high temperature can be obtained by observing the relative position of the indicating needle and the scale, so that the angle number of the scale is read out and recorded, the temperature in the test space is comprehensively, and, therefore, the fatigue resistance degree of the plastic part to be tested under the environmental condition is judged, and the fatigue resistance detection of the plastic product is accurately carried out.

Drawings

FIG. 1 is a schematic structural diagram of a fatigue detection device for plastic parts according to an embodiment;

FIG. 2 is a schematic diagram illustrating an exploded structure of a fatigue detection device for plastic parts according to an embodiment;

FIG. 3 is a schematic structural view of a heating element in one embodiment;

FIG. 4 is a schematic view of another embodiment of a fatigue detection device for plastic parts;

FIG. 5 is a schematic view of an embodiment of a disassembled structure of a supporting base and a transparent shell;

FIG. 6 is a schematic diagram of a second clamping plate according to one embodiment;

FIG. 7 is a schematic structural diagram of a fatigue detection device for plastic parts according to an embodiment;

FIG. 8 is a schematic view of a part of a fatigue detection device for plastic parts according to an embodiment;

FIG. 9 is a schematic view of a first clamp in one embodiment;

FIG. 10 is a schematic diagram of a second clamp in one embodiment;

FIG. 11 is a schematic view of the construction of the slide mount of one embodiment;

FIG. 12 is a schematic view of the structure of the detecting member in one embodiment;

FIG. 13 is a schematic view of a part of a fatigue detection device for plastic parts according to an embodiment;

FIG. 14 is a schematic view of a part of a fatigue detection device for plastic parts according to another embodiment.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, a fatigue detection device 10 for plastic parts includes: the clamping device comprises a base 100, a first clamping member 200, a second clamping member 300, a sliding installation seat 400, a detection member 500, a power member 600, a supporting seat 700 and a heating member 800. The first clamping member 200, the second clamping member 300, the sliding installation seat 400 and the power member 600 are all installed on the base 100, and the detection member 500 is installed on the sliding installation seat 400. The base 100 is mounted on the support base 700, and the heating element 800 is mounted on the support base 700.

Referring to fig. 1 and 2, the supporting base 700 is provided with a mounting groove 710. The base 100 is disposed in the mounting groove 710, and the base 100 is opened with a heating gap 103. For example, the heating gap 103 extends through the base 100. The heating element 800 is connected with the supporting seat 700 and penetrates through the heating notch 103. The first clamping member 200 and the second clamping member 300 are oppositely arranged on the base 100.

For example, the first and

second clamps

200 and 300 are respectively located at both sides of the heating gap 103. The first clamping member 200 and the second clamping member 300 have a testing space 203 therebetween, and the first clamping member 200 and the second clamping member 300 are used together for clamping a plastic part to be tested into the testing space 203. The heating gap 103 corresponds to the test space 203, for example, the test space 203 is located above the heating gap 103. The heating element 800 is used to heat the air surrounding the test space 203, and thus the plastic part to be tested held in the test space 203. The first and

second clamping members

200 and 300 are also referred to as clamping devices, that is, the clamping devices include the first and

second clamping members

200 and 300. The clamping device is arranged on the base and provided with a test space, and the clamping device is used for clamping the plastic part to be tested into the test space.

The slide mount 400 is provided on the base 100, and the slide mount 400 is provided with a scale 410. The detecting member 500 comprises a fixed clamp 510, a sliding block 520 and an indicating needle 530, the fixed clamp 510 comprises a first clamping plate 511 and a second clamping plate 512, the first clamping plate 511 is connected with the sliding block 520, the second clamping plate 512 is connected with the first clamping plate 511 in a sliding manner, an adjustable clamping space 501 is arranged between the first clamping plate 511 and the second clamping plate 512, the first clamping plate 511 and the second clamping plate 512 are used for clamping a plastic part to be tested placed in the testing space 203 again, and the clamping space 501 corresponds to the testing space 203. The slide block 520 is slidably connected to the slide mount 400, and the pointer 530 is disposed on the slide block 520 with a distal end of the pointer 530 facing the scale 410. The power member 600 is disposed on the base 100, an output end of the power member 600 is connected with the sliding block 520, and the power member 600 is used for driving the sliding block 520 to move.

The fatigue detection device 10 for plastic parts is configured to clamp the plastic parts to be tested into the test space 203 through the first clamping member 200 and the second clamping member 300, clamp the plastic parts to be tested again through the first clamping plate 511 and the second clamping plate 512, start the heating member 800 to heat the plastic parts to be tested in the test space 203, after the test space 203 is heated for a predetermined time to be in a high temperature state, start the driving member 600 to drive the sliding block 520 to slide along the vertical direction of the sliding mount 400, drive the fixing clamp 510 to move, allow the plastic parts to be tested to undergo stress deformation, obtain the magnitude of stress generated by the plastic parts to be tested at the high temperature by observing the relative position of the indicating needle 530 and the scale 410, thus reading and recording the angle number of the scale 410, synthesize the temperature in the test space 203, and observe the cracking degree of the plastic parts to be tested in a matching manner, therefore, the fatigue resistance degree of the plastic part to be tested under the environmental condition is judged, and the fatigue resistance detection of the plastic product is accurately carried out.

For example, the mounting groove 710 has a rectangular structure. For example, the mounting slot 710 mates with the base 100. That is, the base 100 also has a rectangular structure. For example, the height of the base 100 is equal to the depth of the mounting groove 710. This may better interconnect the base 100 to the support base 700.

Referring to fig. 1, 2 and 3, for example, the heating element 800 includes a base 810, a heating coil 820, a current regulator 830 and a current meter 840, the base 810 is connected to the supporting base 700, and the heating coil 820, the current regulator 830 and the current meter 840 are disposed on the base 810. A heating coil 820 is inserted into the heating notch 103, and the heating coil 820 heats the air around the test space 203. The heating coil 820 is a copper coil, for example. The current regulator 830 and the current meter 840 are also exposed in the heating gap 103. The heating coil 820, the current regulator 830 and the ammeter 840 form a loop, so that after an external power supply, current is heated through the heating coil 820, the ammeter 840 is used for displaying the value of the current passing through the heating coil 820, and the current regulator 830 is used for regulating the current flowing through the heating coil 820, so that enough current is ensured to pass through the heating coil 820, and the heat generated by the heating coil 820 can meet the purpose of testing. For example, the heating element 800 further includes a power line connected to the outside, for example, the power line connected to the outside is embedded in the seat body 810, and for example, the supporting seat 700 is provided with a socket for connecting an external power source, the seat body 810 is provided with a connector, and after the base 100 is disposed in the mounting groove 710, the connector is electrically connected to the socket, so that the overall structure is compact and orderly.

For better mounting of heating element 800, for example, the central region of heating gap 103 is of circular configuration. For example, the heating coil 820 is located in the central region of the heating gap 103. For example, the base 810 has a strip-shaped plate structure. For example, the length and width of the seat 810 are both less than the length and width of the heating gap 103. For example, the height of the seat 810 is equal to the height of the heating notch 103. Thus, the heating element 800 can be better installed on the supporting seat 700 and penetrate through the heating notch 103 to meet the testing requirement.

Referring to fig. 1 to 4, in an embodiment, the fatigue detection device for plastic parts further includes: a transparent housing 900. For example, the transparent shell 900 is rotatably connected to the supporting base 700, the transparent shell 900 has a receiving cavity 910, and the receiving cavity 910 is communicated with the mounting groove 710. For example, the base 100, the first clamping member 200, the second clamping member 300, the sliding mount 400, the detecting member 500, the power member 600 and the heating member 800 are all received in the receiving cavity 910. For example, the transparent housing 900 is made of a transparent plastic material. As another example, the transparent casing 900 is made of a transparent glass material, so that a user can observe the test condition inside the transparent casing 900 from the outside of the transparent casing 900. For example, the transparent case 900 is a hollow rectangular parallelepiped with one side opened. Like this, in this embodiment, through setting up transparent shell 900, cover transparent shell 900 to supporting seat 700 when the test for the better gathering of the heat that heating member 800 heating produced ensures that the heat that heating member 800 heating produced can be as early as possible the plastic accessories that the heating awaited measuring, thereby makes the test more accurate, and efficiency is higher.

Referring to fig. 4 and 5, further, the supporting base 700 is provided with a drum 720, the transparent casing 900 is provided with a rotating shaft 910, and the rotating shaft 910 is rotatably connected to the drum 720. For example, the number of the rotating shafts 910 is two, and the two ends of the rotating shaft 720 have slots into which the rotating shafts 910 are inserted. For example, the roller 720 is disposed on the side of the supporting base 700. For example, the hinge 910 is disposed at a side of the transparent casing 900. For example, the length and width of the transparent case 900 are greater than those of the base 100. For example, an opening edge of the transparent case 900 abuts a notch edge of the mounting groove 710. For example, the edge of the opening of the transparent casing 900 is provided with a soft silicone strip, so that the accommodating cavity 910 forms a relatively sealed cavity when the transparent casing 900 covers the supporting base 700, which is more beneficial to improving the heating efficiency.

For example, the support base 700 is provided with a plurality of support columns 730 facing away from the base 100. For example, a plurality of support columns 730 are distributed at each end corner of the support base 700. For example, the support stand 700 has a rectangular parallelepiped structure. For example, four support posts 730 are provided. For example, four supporting pillars 730 are respectively disposed at four corners of the supporting base 700. Thus, the height of the supporting seat 700 can be raised through the supporting columns 730, and the heat dissipation requirement after the test is more convenient.

Referring to fig. 4, in an embodiment, the fatigue detection device for plastic parts further includes a temperature measuring instrument 950, and the temperature measuring instrument 950 is disposed on the base 100. For example, the base 100 is further provided with a slide rail 104 adjacent to the heating gap 103. The thermometer 950 comprises a slider 951 and a thermometer 952, wherein the slider 951 is slidably arranged in the slide rail 104, and the thermometer 952 is arranged on the slider. For example, the slide rail has an elongated structure. For example, the slide rail is disposed parallel to the heating gap 103. For example, the width of the slide rail is equal to the width of the slide rail. For example, the lateral wall of slide rail has been seted up and has been stepped down the recess, and the slider lateral wall is provided with spacing arch, and spacing arch embedding is stepped down in the recess. For example, the length of the slide rail is equal to the length of the heating gap 103. The thermometer is, for example, a mercury thermometer. It should be noted that the thermometer may be a product that is mature in the existing market. Like this, can see through transparent casing through thermometer 952 and observe the temperature in the transparent casing, can learn the temperature that the plastic accessories that await measuring at this moment received, directly perceived clear, effectively improve detection efficiency.

Referring to fig. 2, in an embodiment, for example, the first clamping plate 511 is provided with an adjusting hole 515, the second clamping plate 512 is provided with an adjusting column 516, the adjusting column 516 is disposed through the adjusting hole 515 to connect with the first clamping plate 511, for example, the number of the adjusting column 516 is two, and correspondingly, the number of the adjusting hole 515 is two. For example, the distal end of the adjustment post 516 is externally threaded and is threadably coupled to the adjustment post 516 via a custom nut 517. Therefore, the adjustable clamping space 501 can be formed between the first clamping plate 511 and the second clamping plate 512 through the adjusting column 516, namely the size of the clamping space 501 can be adjusted, so that plastic parts to be tested in different models and sizes can be used, and a better clamping effect is ensured.

Referring to fig. 1-6, the test piece further includes a roughcast copper wire coil 980, and the roughcast copper wire coil 980 is made of bare roughcast copper wire. For example, the surface of the second clamping plate 512 facing the first clamping plate 511 is provided with a ceramic fiber layer 518, and the roughcast copper wire coil 980 is arranged on the surface of the ceramic fiber layer 518 facing away from the second clamping plate 512 in an S-shape. For example, the ceramic fiber layer 518 surface is provided with S-shaped grooves and the roughcast copper wire coil 980 is provided with S-shaped grooves. For example, the roughcast copper wire spool 980 is secured in the S-shaped groove by aluminum foil wire strapping. For example, the raw copper wire coil 980 protrudes above the surface of the ceramic fiber layer 518. For example, the area of the raw copper wire coil 980 is less than the area of the surface of the ceramic fiber layer 518. The blister pack 980 is also connected to an external power source via a power cord. Thus, when the first clamping plate 511 and the second clamping plate 512 clamp the plastic part to be tested, the coarse copper wire coil 980 is connected with an external power supply, the coarse copper wire coil 980 generates heat and scalds, and the coarse copper wire coil 980 is exposed and directly contacted with the surface of the plastic part to be tested, because the plastic part is influenced by polluted liquid or dirty impurities, the polluted liquid or the polluted impurities can generate tiny discharge sparks under the action of the electric field force, the plastic parts with good flame retardant property can not generate the phenomenon that burning objects fall off or fire, thus, the surface of the plastic part can be observed visually whether the phenomenon exists or not through the direct contact of the coarse copper wire coil 980 and the plastic part, thereby judge the fire behaviour of plastic accessories, can guarantee the security of plastic accessories in the use like this to guarantee the security of product use that plastic accessories made.

Referring to fig. 7, for example, a first clamping member 200 and a second clamping member 300 are oppositely disposed on the base 100, a testing space 203 is provided between the first clamping member 200 and the second clamping member 300, and the first clamping member 200 and the second clamping member 300 are commonly used for clamping a plastic part to be tested into the testing space 203. The slide mount 400 is provided on the base 100, and the slide mount 400 is provided with a scale 410. The inspection piece 500 includes a fixing jig 510, a sliding block 520, and an indicator pin 530, the fixing jig 510 is connected to the sliding block 520, and an end of the fixing jig 510 is located in the test space 203. The sliding block 520 is slidably connected to the sliding mount 400. The pointer 530 is disposed on the slider 520. The tip of pointer 530 faces scale 410. The driving member 600 is disposed on the base 100, an output end of the driving member 600 is connected to the sliding block 520, and the driving member 600 is used for driving the sliding block 520 to move. In this way, the plastic part to be tested is clamped into the test space 203 by the first clamping member 200 and the second clamping member 300, and the fixing jig 510 is adjusted to make the plastic part to be tested abut against the fixing jig 500, specifically, to make the plastic part to be tested clamped in the clamping space 501 by the first clamping plate 511 and the second clamping plate 512. When the driving member 600 is started, the driving sliding block 520 slides along the vertical direction of the sliding mounting seat 400 to drive the fixing clamp 510 to move, so that the plastic part to be tested is stressed and deformed, the stress generated by the plastic part to be tested can be obtained by observing the relative position of the indicating needle 530 and the scale 410, and the plastic part to be tested can be subjected to stress tests with different curvatures by adjusting the moving distance of the fixing clamp 510, so that the stress detection of a plastic product can be accurately performed.

Referring to fig. 8, for example, the base 100 has a regular rectangular structure. The base 100 has a mounting face 101 of a regular planar configuration. The first clamping member 200, the second clamping member 300, the sliding mounting seat 400 and the driving member 600 are mounted on the mounting surface 101. For example, the first clamping piece and the second clamping piece are oppositely arranged on two side edge areas of the base. For example, the first clamping piece, the second clamping piece and the sliding installation seat are distributed in a triangle shape. For example, the first clamping member 200 is welded to the base 100. For example, the second clamping member 300 is welded to the base 100. For another example, the first clamping member 200 is screwed with the base 100, for example, by forming a first screw hole on the base, a first screw is disposed at the bottom of the first clamping member, and the first screw is screwed and fixed in the first screw hole, so that the first clamping member is screwed with the base. For example, the second clamping member 300 is screwed with the base 100, for example, by forming a second screw hole on the base, and a second screw is provided at the bottom of the first clamping member, and the second screw is screwed in the second screw hole so that the first clamping member is screwed with the base. Therefore, the first clamping piece, the second clamping piece, the sliding installation seat and the driving piece can be stably and firmly installed on the installation surface through the base.

Referring to fig. 7, 8 and 9, for example, the first clamping member 200 includes a first fixing body 210, a first clamping block 220, a first fixing screw 230 and two first fixing posts 240. For example, the first fixing body 210 is connected with the base 100. For example, the first fixing body 210 is welded to the base 100. Further, a first reinforcing rib 250 is further disposed between the first fixing body 210 and the base 100. The first reinforcing rib 250 is connected to the first fixing body 210 and the base 100, respectively, for example, the first reinforcing rib 250 is welded to the first fixing body 210 and the base 100, so that the first fixing body 210 is more stably fixed to the base 100.

The first fixing body 210 is provided with a first clamping groove 211, and the first clamping groove 211 makes the first fixing body 210 in an inverted U-shaped structure. The first clamping block 220 is received in the first clamping slot 211. The first clamping block 220 is provided with a first through hole, and the first through hole penetrates through the first clamping block 220. The first fixing body 210 has two first fixing holes 212 formed at the bottom of the first clamping groove 211. The first fixing screw 230 is inserted through the first through hole. The first fixing body 210 has a first adjusting groove 213 formed on a sidewall of the first clamping groove 211. The first adjustment groove 213 penetrates the first fixing body 210. The first fixing screw 230 is inserted into the first through hole and then inserted into the first adjusting groove 213. Two ends of the first fixing screw 230 are respectively provided with two first fixing nuts 231, two ends of the first fixing screw 230 are respectively provided with an external thread, and the two first fixing nuts 231 are respectively screwed at two ends of the first fixing screw 230.

To facilitate the screwing of the first retaining nut 231, for example, the first retaining nut 231 is provided with three first handle portions 232. The three first handle portions 232 are uniformly arranged. When the first clamping block 220 is connected to the first fixing body 210, the two first retaining nuts 231 are respectively abutted against the first clamping block 220 and the first fixing body 210, so that the first clamping block 220 is fixed relative to the first fixing body 210. A first clamping space 214 is formed between the groove top of the first clamping groove 211 and the first clamping block 220. Like this, when the plastic accessories that await measuring need the centre gripping, the plastic accessories that await measuring is partly placed in the first centre gripping space 214 between the groove top of first centre gripping groove 211 and first grip block 220 to the plastic accessories that await measuring respectively with the groove top of first centre gripping groove 211 with first grip block 220 butt back, respectively the screw thread two first custom nuts 231 can be fixed with the plastic accessories centre gripping that await measuring, thereby the stability of the plastic accessories that await measuring when having improved the test.

In order to stably adjust the size of the first clamping space 214, for example, two first fixing holes 212 are arranged in parallel. Correspondingly, for example, the two first fixing posts 240 are disposed in parallel. Each first fixing column 240 is correspondingly inserted into one of the first fixing holes 212. The first clamping block 220 is connected to the two first fixing columns 240, and the first clamping block 220 is screwed to the ends of the two first fixing columns 240. For example, the first clamping block 220 is a rectangular parallelepiped block structure. Two first spiro union holes that have the internal thread are seted up to the bottom surface of first grip block, and the external screw thread has been seted up to the end of first fixed column, and the end spiro union in a first spiro union hole of each first fixed column. For example, the length of the first fixing column is greater than the depth of the first fixing hole. For example, the first fixing column is a cylinder structure, and the first fixing hole is a circular groove. The outer diameter of the first fixing column is equal to the inner diameter of the first fixing hole. Like this, through the cooperation of two first fixed columns 240 and two first fixed orificess 212, can make first grip block 220 can move in the length direction of first fixed orificess 212 promptly the vertical direction, and move in-process first grip block 220 and stabilize not rotate to make the distance between the groove top of first centre gripping groove 211 and first grip block 220 adjustable, so make the space size of first centre gripping space 214 stably adjustable, with the plastic accessories that the adaptation is awaited measuring of different size sizes.

Further, in order to make the first clamping member clamp the plastic part to be tested more stably, for example, the first fixing body 210 is provided with a first limiting groove 215. The first limiting groove 215 is opened at a side edge of the top of the first clamping groove 211. Correspondingly, the first clamping block 220 is provided with a first limit strip 221. For example, the first clamping block 220 is integrally formed with a first stopper bar 221. For example, the first position-limiting strip 221 is disposed on the outer side of the first clamping block 220. The first limiting strip 221 is a rectangular structure, and the first limiting groove 215 is a rectangular groove. The first stopper bar 221 is slidably inserted into the first stopper groove 215. Thus, when the plastic part to be tested is clamped in the first clamping space 214, the first position-limiting strip 221 can limit the plastic part to be tested from leaving the first clamping space 214, so that the plastic part to be tested is more stably clamped in the first clamping space 214, and the stability of the testing process is ensured.

Further, in order to make the clamping of the plastic part to be tested more convenient and faster, for example, the bottom end of the first fixing column 240 is provided with a first spring 241. The bottom ends of the two first fixing posts 240 are provided with a spring 241. For example, the first spring 241 is welded to the first fixing post 240. After the first fixing post 240 is inserted into the first fixing hole 212, the spring 241 abuts against the bottom of the first fixing hole 212. Like this, first fixed body 210 will set up elastically in first centre gripping groove 211, and when the plastic accessories of centre gripping examination await measuring, under the elastic effect of first spring 241, first fixed body 210 supports elasticity and holds the plastic accessories of examination awaiting measuring to the plastic accessories of examination will await measuring better pushes up the top of first centre gripping groove 211, so can improve the efficiency when the plastic accessories of centre gripping examination await measuring, and convenient and fast.

Referring to fig. 7, 8 and 10, the structure of second clamping member 300 is the same as that of first clamping member 200, so that the structure of second clamping member 300 can be easily understood. For example, the second clamping member 300 includes a second fixing body 310, a second clamping block 320, a second fixing screw 330 and two second fixing posts 340. For example, the second fixing body 310 is connected with the base 100. For example, the second fixing body 310 is welded to the base 100. Further, a second rib 350 is disposed between the second fixing body 310 and the base 100. The second reinforcing rib 350 is connected to the second fixing body 310 and the base 100, respectively, for example, the second reinforcing rib 350 is welded to the second fixing body 310 and the base 100, respectively, so that the second fixing body 310 can be more stably fixed to the base 100.

The second fixing body 310 is provided with a second clamping groove 311, and the second clamping groove 311 makes the second fixing body 310 in an inverted U-shaped structure. The second clamping block 320 is received in the second clamping slot 311. The second clamping block 320 is provided with a second through hole, and the second through hole penetrates through the second clamping block 320. The second fixing body 310 has two second fixing holes 312 at the bottom of the second clamping slot 311. The second fixing screw 330 is inserted into the second through hole. The second fixing body 310 has a second adjusting groove 313 formed on a sidewall of the second clamping groove 311. The second adjustment groove 313 penetrates the second fixing body 310. The second fixing screw 330 is inserted into the second through hole and then inserted into the second adjusting groove 313. Two ends of the second fixing screw 330 are respectively provided with two second customized nuts 231, two ends of the second fixing screw 330 are respectively provided with an external thread, and the two second customized nuts 231 are respectively screwed at two ends of the second fixing screw 330. To facilitate the screwing of the second custom nut 231, for example, the second custom nut 231 is provided with three second handle portions 232. The three second handle portions 232 are uniformly arranged. When the second clamping block 320 is connected to the second fixing body 310, the two second customized nuts 231 are respectively abutted against the second clamping block 320 and the second fixing body 310, so that the second clamping block 320 is fixed relative to the second fixing body 310. A second clamping space 314 is formed between the groove top of the second clamping groove 311 and the second clamping block 320. Like this, when the plastic accessories that await measuring need the centre gripping, the plastic accessories's that await measuring part is placed in the second centre gripping space 314 between the groove top of second centre gripping groove 311 and second grip block 320 to make the plastic accessories that await measuring respectively with the groove top of second centre gripping groove 311 and second grip block 320 butt back, two second custom nut 231 of screwing respectively can be fixed with the plastic accessories centre gripping that await measuring, thereby the stability of the plastic accessories that await measuring when having improved the test.

In order to stably adjust the size of the second clamping space 314, for example, two second fixing holes 312 are arranged in parallel. Correspondingly, for example, the two second fixing posts 340 are disposed in parallel. Each second fixing column 340 is correspondingly inserted into one of the second fixing holes 312. The second clamping blocks 320 are respectively connected with the two second fixing columns 340, and the specific second clamping blocks 320 are respectively screwed with the tail ends of the two second fixing columns 340. For example, the second clamping block 320 has a rectangular parallelepiped block structure. Two second screw holes with internal threads are formed in the bottom surface of the second clamping block, external threads are formed in the tail ends of the second fixing columns, and the tail end of each second fixing column is in screw connection with one second screw hole. For example, the length of the second fixing column is greater than the depth of the second fixing hole. For example, the second fixing column is a cylinder structure, and the second fixing hole is a circular groove. The outer diameter of the second fixing column is equal to the inner diameter of the second fixing hole. Therefore, through the matching of the two second fixing columns 340 and the two second fixing holes 312, the second clamping block 320 can move in the vertical direction, which is the length direction of the second fixing holes 312, and the second clamping block 320 is stable and does not rotate in the moving process, so that the distance between the groove top of the second clamping groove 311 and the second clamping block 320 can be adjusted, and thus the space size of the second clamping space 314 can be stably adjusted to adapt to plastic parts to be tested with different sizes.

Further, in order to make the second clamping member clamp the plastic part to be tested more stably, for example, the second fixing body 310 is provided with a second limiting groove 315. The second limiting groove 315 is opened at a side edge of the top of the second clamping groove 311. Correspondingly, the second clamping block 320 is provided with a second stopper 321. For example, the second clamping block 320 is integrally formed with a second stopper 321. For example, the second stopper 321 is disposed at an outer side of the second clamping block 320. The second limiting strip 321 is a rectangular structure, and the second limiting groove 315 is a rectangular groove. The second stopper bar 321 is slidably inserted into the second stopper groove 315. Thus, when the plastic part to be tested is clamped in the second clamping space 314, the second limiting strip 321 can limit the plastic part to be tested from leaving the second clamping space 314, so that the plastic part to be tested is more stably clamped in the second clamping space 314, and the stability of the testing process is ensured.

Further, in order to make the clamping of the plastic part to be tested more convenient and faster, for example, the bottom end of the second fixing column 340 is provided with a second spring 341. The bottom ends of the two second fixing posts 340 are both provided with a spring 341. For example, the second spring 341 is welded to the second fixing post 340. After the second fixing post 340 is inserted into the second fixing hole 312, the spring 341 abuts against the bottom of the second fixing hole 312. Like this, the second fixing body 310 will be elastically arranged in the second clamping groove 311, when clamping the plastic spare part to be tested, under the elastic effect of the second spring 341, the second fixing body 310 will elastically abut against the plastic spare part to be tested, thereby better propping up the plastic spare part to be tested to the top end of the second clamping groove 311, so as to improve the efficiency of clamping the plastic spare part to be tested, and is convenient and fast.

Referring to fig. 7, 8 and 11, the sliding mount 400 is disposed on the base 100, and specifically, the sliding mount 400 is welded on the base 100. The slide mount 400 is provided with a scale 410 and a transparent window 420. Correspondingly, the sliding mount 400 is provided with an identification slot 430 and an identification window 440. The identification window 440 communicates with the identification slot 430. The scale 410 is inserted into the identification groove 430, that is, the scale 410 is slidably inserted into the identification groove 430. The scale 410 can move up and down along the identification groove 430. The transparent window 420 is covered on the identification window 440. For example, the transparent window 420 is made of a transparent plastic material. For example, the transparent window 420 is made of a transparent glass material. So that the user can correspondingly view the position of scale 410 indicated by pointer 530 according to the end of pointer 530, thereby reading the value of scale 410. In the present embodiment, the scale 410 is provided with an angle indicator, and the angle indicator is 0 to 90 degrees. Wherein the middle of the scale 410 is 0 degree, and the two ends of the scale 410 are 90 degrees. So, in stress test each time, to the plastic accessories that await measuring of difference, because the size and dimension of the plastic accessories that await measuring of different product models differs the relative base 100 of mounting fixture 510 distance also is different, so can remove scale 410 before the test, with the position of 0 degree corresponding to the end of pointer 530, can adapt to the plastic accessories that await measuring of different product models like this for the result of the test of each time is more accurate.

Referring to fig. 7, 8 and 11, in order to make the scale 410 slide along the mark groove 430 more stably, for example, the width of the mark groove 430 is larger than the width of the mark window 440, so that the scale 410 can slide along the mark groove 430 more stably. Further, the width of the mark groove 430 is equal to that of the scale 410, and the scale 410 is slidably fitted with the mark groove 430. For example, the sidewalls of the identification groove 430 are roughened. Thus, after each adjustment of the positions of the scale 410 and the mark groove 430, the positions of the scale 410 and the mark groove 430 are relatively unchanged without an external force, which may make the testing process more stable.

Referring to fig. 7, 8, 11 and 12, for example, the fixing clamp 510 has a plate-shaped structure. For example, the fixing jig 510 has a rectangular parallelepiped plate-like structure. For example, the fixing jig 510 is disposed perpendicular to the sliding block 520. For example, the sliding block 520 has a rectangular structure. For example, the fixing clip 510 is vertically disposed at a middle region of the sliding block 520. As shown in fig. 7, the end of the fixing clamp 510 is located in the testing space 203, and it can also be understood that the fixing clamp 510 is entirely located in the testing space 203, so as to better contact with the plastic part to be tested, and ensure the smooth performance of the test.

As shown in fig. 11, the slide mount 400 is further provided with a slide groove 401, a relief notch 402, an indication notch 403 and a test notch 404, and the relief notch 402, the indication notch 403 and the test notch 404 are respectively communicated with the slide groove 401. For example, the abdicating notch 402 is located in front of the sliding slot 401, and the indication notch 403 and the test notch 404 are located on the left and right sides of the sliding slot 401, respectively. For example, the sliding block 520 is slidably disposed in the sliding slot 401. The indicator needle 530 is inserted into the indicator notch 403, and the fixing clamp 510 is inserted into the testing notch 404. This allows the slide mount 400 to form a frame structure to better connect the slide mount 400 to the test element 500.

Referring to fig. 7 to 13, for example, the sliding block 520 is provided with a driving groove 521, the driving groove 521 is communicated with the test notch 404, a straight rack 522 is disposed on a side wall of the driving groove 521, and a straight rack is disposed on the straight rack 522. For example, the driving groove 521 faces away from the indicating needle 530. For example, the indication notch 403 is disposed opposite the abdicating notch 402. For example, the test gap 404 faces the test space 203. For example, the abdicating notch 402 is an elongated structure. For example, the indication notch 403 has an elongated structure. For example, the test gap 404 is an elongated structure.

With reference to fig. 7, 11 and 12, the sliding block 520 is further provided with an adjusting hole 523. For example, the adjustment hole 523 faces away from the drive slot 521. For example, the pointer 530 includes a lifting column 531 and an indicating block 532, the lifting column 531 is inserted into the adjusting hole 523 and is rotatably connected to the sliding block 520, the indicating block 532 is disposed at an end of the lifting column 531, the indicating block 532 has an end with a sharp structure, and the end of the indicating block 532 is adjacent to the scale 410. For example, the adjustment hole 523 has a circular structure. For example, the lifting columns 531 are cylindrical structures. For example, the inner diameter of the adjustment hole 523 is equal to the outer diameter of the lifting column 531. For example, the depth of the adjustment hole 523 is smaller than the height of the lifting column 531. For example, the surface of the lifting columns 531 is smoothed. For example, the indicator block 532 is a block structure. For example, the end of the indicator block 532 is disposed perpendicular to the scale 410. In this way, the position of pointer 530 may be better adjusted so that pointer 530 may better indicate the particular position of scale 410, resulting in a more accurate degree.

As shown in fig. 12, 13 and 14, for example, the output end of the driving member 600 is provided with a gear 610, the gear 610 is located in the driving groove 521 and the gear 610 is engaged with the spur plate 522. Specifically, the driving member 600 includes a motor 620 and a mounting seat 630, the motor 620 is disposed on the top of the mounting seat 630, the mounting seat 630 is disposed on the base 100, the height of the mounting seat 630 is smaller than the height of the sliding block 520, the output end of the motor 620 is connected to the sliding block 520, and the driving member 600 is used for driving the sliding block 520 to move.

To effectively control the angle of rotation, the motor 620 is, for example, a stepper motor. Stepping motor can effective control pivoted angle, rotational speed etc. under the condition of non-overload, can drive gear 610 and rotate a fixed angle and do not receive the influence of load, and the pivoted of gear 610 that realizes is accurate reliable to the motor can control gear 610 and rotate fixed angle, can not influence because of other factors. Of course, the stepping motor is further provided with a power line and a switch, however, since the connection structure of the power line and the switch with the motor is well known to those skilled in the art, the detailed description thereof is omitted.

As shown in fig. 7 to 14, for example, the mounting seat 630 is detachably connected to the base 100. For example, the base 100 has a fixing hole 102 adjacent to the sliding mounting seat 400, and a fixing post (not shown) is disposed at the bottom of the mounting seat 630 and inserted into the fixing hole, and the fixing post is screwed with the fixing hole. For example, the fixing hole penetrates through the base. For example, the fixing hole is an internally threaded hole. For example, the fixing hole has a circular structure. For example, the fixed column is a cylindrical structure. For example, the mounting seat is of a truncated cone structure. For example, the fixing column is arranged in the middle area of the mounting seat. Therefore, the stepping motor can drive the sliding block to move along the length direction of the sliding groove, namely the vertical direction, so as to drive the fixing clamp to move and realize the stress test operation.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A plastic spare and accessory part fatigue resistance detection device comprises: the device comprises a supporting seat, a base, a first clamping piece, a second clamping piece, a heating piece, a sliding mounting seat, a detection piece and a power piece;

the first clamping piece and the second clamping piece are oppositely arranged on the base, a testing space is formed between the first clamping piece and the second clamping piece, and the first clamping piece and the second clamping piece are jointly used for clamping a plastic part to be tested into the testing space; it is characterized in that the preparation method is characterized in that,

the supporting seat is provided with an installation groove;

the base is arranged in the mounting groove, and a heating notch is formed in the base;

the sliding installation seat is arranged on the base and is provided with a scale;

the heating element is connected with the supporting seat and penetrates through the heating gap, the heating gap corresponds to the test space, and the heating element is used for heating air around the test space;

the detection piece comprises a fixed clamp, a sliding block and an indicating needle, the fixed clamp comprises a first clamping plate and a second clamping plate, the first clamping plate is connected with the sliding block, the second clamping plate is connected with the first clamping plate in a sliding mode, an adjustable clamping space is formed between the first clamping plate and the second clamping plate, and the clamping space corresponds to the test space; the sliding block is connected with the sliding installation seat in a sliding mode, a driving groove is formed in the sliding block, a straight tooth plate is arranged on the side wall of the driving groove, the indicating needle is arranged on the sliding block, and the tail end of the indicating needle faces the scale;

the power part is arranged on the base, a gear is arranged at the output end of the power part, and the gear is meshed with the straight tooth plate to drive the sliding block to move towards the direction close to or far away from the base.

2. The plastic part fatigue detection device of claim 1, wherein the mounting groove is rectangular.

3. The plastic part fatigue detection device of claim 2, wherein the mounting groove is engaged with the base.

4. The plastic part fatigue detection device of claim 3, wherein the height of the base is equal to the depth of the mounting groove.

5. The plastic part fatigue detection device of claim 4, wherein the first clamping member and the second clamping member are respectively located at two sides of the heating gap.