CN110702501B - Automatic shell friction test fixture - Google Patents
Automatic shell friction test fixture Download PDFInfo
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- CN110702501B CN110702501B CN201910939283.9A CN201910939283A CN110702501B CN 110702501 B CN110702501 B CN 110702501B CN 201910939283 A CN201910939283 A CN 201910939283A CN 110702501 B CN110702501 B CN 110702501B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
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Abstract
The invention discloses a shell automatic friction test fixture, which comprises a shell positioning rotary disc, a friction assembly and a controller, wherein the friction assembly comprises a friction execution assembly and a friction adjustment assembly, the friction execution assembly comprises a friction part and a distance measurement sensor which are positioned at the lower end of the friction execution assembly, and a sliding part which is positioned at the upper end of the friction execution assembly, the distance measurement sensor is used for measuring the distance between the friction execution assembly and the edge of a shell, the controller judges whether the edge or the corner is positioned at a position to be rubbed according to the measurement result of the distance measurement sensor, the friction adjustment assembly comprises a containing shell, a switching mechanism, an elastic body and a push rod, the switching mechanism is arranged on the containing shell, the sliding part can be arranged at the lower end of the containing shell in a vertical sliding manner, the elastic body and the push rod are both connected with the switching mechanism, when the edge is judged to be positioned at the position to be rubbed, the switching mechanism enables the elastic body to be in a retraction state and the push rod to extend out and prop against the sliding part, when the corner is judged to be positioned at the position to be rubbed, the switching mechanism makes the push rod in a retracted state and makes the elastic body extend and abut against the sliding part.
Description
Technical Field
The invention relates to the technical field of shell material friction, in particular to an automatic shell material friction test jig.
Background
At present, when edge friction test is carried out on monomer shell materials, the edge friction test is usually carried out manually by manpower, the test strength, the test angle and the like are difficult to keep consistent, so that great uncertainty is brought to a test result, and particularly when different testers carry out test. Moreover, the manpower test seriously restricts the improvement of the test efficiency, thereby being not beneficial to controlling the test cost.
Disclosure of Invention
The invention aims to provide a shell material automatic friction test fixture which can automatically perform friction test on the edge of a shell material, is easy to keep the test strength consistent, and is beneficial to improving the test efficiency and reducing the test cost.
In order to achieve the above purpose, the invention provides a shell automatic friction test fixture, which comprises a shell positioning turntable, a turntable driving mechanism, a friction assembly mounting structure and a controller, wherein the turntable driving mechanism is electrically connected with the controller, the turntable driving mechanism is used for driving the shell positioning turntable to rotate according to the control of the controller, the friction assembly comprises a friction executing assembly and a friction adjusting assembly, the friction executing assembly comprises a friction part and a distance measuring sensor which are positioned at the lower end of the friction executing assembly, and a sliding part which is positioned at the upper end of the friction executing assembly, the friction part is used for rubbing edges or corners between edges of shell on the shell positioning turntable, the distance measuring sensor is used for measuring the distance between the friction executing assembly and the edges of the shell, and the controller judges whether the edges or the corners are positioned at a position to be rubbed according to the measuring result of the distance measuring sensor, but friction adjustment subassembly lateral shifting ground is installed friction subassembly mounting structure, friction adjustment subassembly includes the holding casing and locates the switching mechanism, elastomer and the push rod of holding casing, the sliding part can be installed with sliding from top to bottom the lower extreme of holding casing, elastomer and push rod all with the switching mechanism is connected, switching mechanism with controller electric connection, when judging that the edge is in treating the friction position, switching mechanism is in make under the control of controller the elastomer is in the indentation state that makes upwards and makes the push rod stretches out downwards and withstands the sliding part, when judging that the corner is in treating the friction position, switching mechanism is in under the control of controller make the push rod be in the indentation state that makes the elastomer stretches out downwards and the butt the sliding part.
Preferably, the automatic friction test fixture for shell materials further comprises a support, an inclined driving motor, an inclined rotating shaft and a mounting plate, wherein the support comprises two opposite side plates, two ends of the inclined rotating shaft are respectively mounted on the two side plates, the inclined driving motor is mounted on one of the two side plates to drive the inclined rotating shaft to rotate under the control of the controller, the mounting plate is fixed on the inclined rotating shaft, the turntable driving mechanism comprises a rotating motor and a rotating shaft, the rotating motor is electrically connected with the controller, the rotating motor is fixed on the mounting plate, and the rotating motor drives the shell material positioning turntable to rotate through the rotating shaft.
Preferably, the bracket further includes a cross member as the friction pack mounting structure protruding inward from an upper end of one of the side plates.
Preferably, the sliding portion includes a sliding column and a stopping portion extending outward from an upper end of the sliding column, a sliding chamber penetrating downward and a side sliding groove communicating with the sliding chamber in a lateral direction are formed at a lower end of the accommodating housing, a stopping wall is formed at a lower end of the side sliding groove, the sliding column is slidably disposed in the sliding chamber, and the stopping portion is slidably disposed in the side sliding groove and is stopped by the stopping wall. In both cases
Preferably, opposite sides of the sliding column respectively extend outward to form the stopping portion, opposite sides of the sliding chamber respectively form the side sliding groove and the stopping wall corresponding to the stopping portion, and the side sliding groove outwardly penetrates through the accommodating housing.
Preferably, the friction executing assembly comprises a sliding part, a load sensor and a metal friction piece which are sequentially connected from top to bottom, the sliding part is formed on the sliding part, the load sensor is electrically connected with the controller, and the friction part is formed on the metal friction piece.
Preferably, the slider includes a plate portion on which the load sensor is mounted, and the sliding portion that protrudes upward from a middle position of the plate portion.
Preferably, the metal friction piece is in an inverted T shape.
Preferably, the mounting plate and the shell material positioning turntable are respectively provided with an inclination angle sensor and a rotation angle sensor which are electrically connected with the controller, and the controller controls the distance measuring sensor to execute distance measuring operation according to the rotation angle data of the rotation angle sensor.
Preferably, the elastic body is sleeved on the push rod.
Compared with the prior art, the automatic shell friction test fixture can automatically perform friction test on the edge of the shell, so that the test strength is easy to keep consistent; and by the arrangement of the shell positioning rotary disc and the rotary disc driving mechanism, the rotation angle of the shell can be automatically adjusted so as to be convenient for converting the friction edge of the shell, the distance between the shell positioning rotary disc and the shell edge can be measured by the arrangement of the distance measuring sensor, and then the controller can judge whether the edge or the corner is at the position to be rubbed according to the measurement result of the distance measuring sensor, by the arrangement of the friction adjusting component, when the edge is determined to be at the position to be rubbed, the switching mechanism can enable the elastomer to be in an upward retracted state and the push rod to extend downwards and prop against the sliding part under the control of the controller, and then the edge can be rubbed by the whole transverse back-and-forth movement of the friction component, because the sliding part is propped downwards by the push rod, namely, the friction executing component can not move upwards, the friction part of the friction executing component can stably rub back and forth along the edge, when the corner is in the position to be rubbed, the switching mechanism enables the push rod to be in an upward retraction state and enables the elastic body to extend downwards and abut against the sliding part under the control of the controller, then the friction component can move transversely back and forth to rub the corner through the whole body of the friction component, and the elastic body abuts against the sliding part downwards due to the fact that the push rod retracts upwards, so that the friction execution component can move up and down in a self-adaptive mode according to the height change of the corner in the process that the friction part rubs transversely along the corner, and further the reliability of friction of the corner position is guaranteed.
Drawings
Fig. 1 is a schematic perspective view of an automatic friction test fixture for shell materials according to an embodiment of the invention.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a schematic perspective view of another view angle of the automatic friction testing jig for shell materials according to the embodiment of the invention.
Fig. 4 is a schematic block diagram of a control relationship of the automatic friction test fixture according to the embodiment of the invention.
Detailed Description
In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.
In the description of the present invention, it should be understood that the terms "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, and thus, should not be construed as limiting the scope of the present invention.
Referring to fig. 1 to 4, the invention discloses a shell automatic friction test fixture, which comprises a shell positioning turntable 1, a turntable driving mechanism 2, a friction assembly 3, a friction assembly mounting structure 4 and a controller 5, wherein the turntable driving mechanism 2 is electrically connected with the controller 5, the turntable driving mechanism 2 is used for driving the shell positioning turntable 1 to rotate according to the control of the controller 5, the friction assembly 3 comprises a friction executing assembly 30 and a friction adjusting assembly 40, the friction executing assembly 30 comprises a friction part 31 and a distance measuring sensor 32 which are positioned at the lower end of the friction executing assembly and a sliding part 33 which is positioned at the upper end of the friction executing assembly, the friction part 31 is used for rubbing an edge H1 of a shell H on the shell positioning turntable 1 or a corner H2 between the edges H1, the distance measuring sensor 32 is used for measuring the distance between the distance measuring sensor and the edge of the shell H, the controller 5 judges whether the edge H1 or the corner H2 is in a position to be rubbed according to the measurement result of the distance measuring sensor 32, the friction adjusting assembly 40 is transversely movably mounted on the friction assembly mounting structure 4, the friction adjusting assembly 40 includes a housing 41, a switching mechanism 42, an elastic body 43 and a push rod 44, the switching mechanism 42, the elastic body 43 and the push rod 44 are disposed on the housing 41, the sliding portion 33 is vertically slidably mounted on the lower end of the housing 41, the elastic body 43 and the push rod 44 are both connected to the switching mechanism 42, the switching mechanism 42 is electrically connected to the controller 5, when the edge H1 is determined to be at the position to be rubbed, the switching mechanism 42 makes the elastic body 43 be in an upward retracted state and makes the push rod 44 extend downward and abut against the sliding portion 33 under the control of the controller 5, and when the corner H2 is determined to be at the position to be rubbed, the switching mechanism 42 makes the push rod 44 be in an upward retracted state and makes the elastic body 43 extend downward and abut against the sliding portion 33 under the control of the controller 5. It should be noted that it is a common technical means for those skilled in the art to control the extension or retraction of the elastic body 43 or the push rod 44 by using the related mechanism, and therefore, the detailed implementation of the switching mechanism 42 will not be described in detail. In a specific example, the friction adjusting assembly 40 is mounted on the friction assembly mounting structure 4 through the accommodating housing 41, but not limited thereto.
The automatic shell material friction test fixture can automatically perform friction test on the edge of the shell material H, so that the test strength is easy to keep consistent; and by the arrangement of the shell positioning rotary disc 1 and the rotary disc driving mechanism 2, the rotation angle of the shell H can be automatically adjusted so as to switch the friction edge of the shell H, by the arrangement of the distance measuring sensor 32, the distance between the rotation angle and the edge of the shell H can be measured, and then the controller 5 can judge whether the edge H1 or the corner H2 is at the position to be rubbed according to the measurement result of the distance measuring sensor 32, by the arrangement of the friction adjusting component 40, when the edge H1 is determined to be at the position to be rubbed, the switching mechanism 42 can make the elastic body 43 be in the upward retracting state and make the push rod 44 extend downward and push against the sliding part 33 under the control of the controller 5, and then the edge H1 can be rubbed by the whole transverse back and forth movement of the friction component 3, because the sliding part 33 is pushed downward by the push rod 44, that is, the friction executing component 30 can not move upward, the friction portion 31 of the friction executing component 30 can stably rub back and forth along the edge H1, when it is determined that the corner H2 is at the position to be rubbed, the switching mechanism 42 makes the push rod 44 in the upward retracted state and the elastic body 43 extend downward and abut against the sliding portion 33 under the control of the controller 5, and then the corner H2 can be rubbed by the overall transverse back and forth movement of the friction component 3, since the push rod 44 is retracted upward and the elastic body 43 abuts against the sliding portion 33 downward, the friction executing component 30 can move up and down adaptively in response to the height change of the corner H2 during the transverse rubbing process of the friction portion 31 along the corner H2, thereby ensuring the reliability of the position rubbing against the corner H2.
In some embodiments, the automatic friction testing fixture for casing further includes a support 6, an inclined driving motor 7, an inclined rotating shaft 71 and a mounting plate 8, the support 6 includes two opposite side plates 61, two ends of the inclined rotating shaft 71 are respectively mounted on the two side plates 61, the inclined driving motor 7 is mounted on one of the two side plates 61 to drive the inclined rotating shaft 71 to rotate under the control of the controller 5, the mounting plate 8 is fixed on the inclined rotating shaft 71, the turntable driving mechanism 2 includes a rotating motor 21 and a rotating shaft 22 electrically connected to the controller 5, the rotating motor 21 is fixed on the mounting plate 8, and the rotating motor 21 drives the casing positioning turntable 1 to rotate through the rotating shaft 22. Through the design, the inclination angle of the shell material H relative to the friction part 31 can be adjusted, the rotation angle of the shell material H can be adjusted, accurate friction operation on the edge of the shell material H is facilitated, and the structure can ensure the reliability of the inclination operation and the rotation operation.
In some embodiments, the bracket 6 further includes a cross member as the friction pack mounting structure 4 protruding inward from the upper end of one of the two side plates 61. Specifically, the housing case 41 of the friction adjusting assembly 40 is mounted on the cross member by a lateral driving mechanism (not shown). In other embodiments, the friction member mounting structure 4 may be a separate linear module, a robot, or the like.
In some embodiments, the sliding portion 33 includes a sliding column 331 and a stopping portion 332 extending outward from an upper end of the sliding column 331, a sliding chamber 411 passing downward and a side sliding groove 412 communicating with the sliding chamber 411 laterally are formed at a lower end of the accommodating case 41, a stopping wall 413 is formed at a lower end of the side sliding groove 412, the sliding column 331 is slidably disposed in the sliding chamber 411, and the stopping portion 332 is slidably disposed in the side sliding groove 412 and is stopped by the stopping wall 413. When the edge H1 is determined to be in the position to be rubbed, the push rod 44 is controlled to push the sliding part 33 downward so that the stop part 332 is always kept in contact with the stop wall 413 during the rubbing process of the edge H1, thereby ensuring the reliability of the rubbing of the edge H1. When it is determined that the corner H2 is at the position to be rubbed, the sliding post 331 and the stopping portion 332 can slide up and down in the sliding chamber 411 and the side sliding groove 412 respectively in response to the height change of the corner H2, so as to ensure that the friction executing assembly 30 can reliably perform adaptive up and down movement, thereby ensuring the reliability of the position rubbing against the corner H2.
In some embodiments, two opposite sides of the sliding column 331 respectively extend outward to form a stopping portion 332, two opposite sides of the sliding chamber 411 respectively form a side sliding groove 412 and a stopping wall 413 corresponding to the stopping portion 332, and the side sliding groove 412 outwardly penetrates through the accommodating housing 41; by this design, not only reliable execution of actuation is facilitated, but also mounting of the sliding portion 33 is facilitated, and the structure is simple and reliable.
In some embodiments, the friction actuating assembly 30 includes a sliding member 34, a load sensor 35 and a metal friction member 36 connected in sequence from top to bottom, the sliding portion 33 is formed on the sliding member 34, the load sensor 35 is electrically connected to the controller 5, and the friction portion 31 is formed on the metal friction member 36. Through the setting of load sensor 35, can perceive the pressure that metal friction piece 36 applyed to shell material H in real time, and then can carry out corresponding setting in view of the above.
In some embodiments, the slider 34 includes a plate portion 341 and a slide portion 33 projecting upward from an intermediate position of the plate portion 341, and the load sensor 35 is mounted on the plate portion 341. The sliding portion 33 may be integrally formed on the plate portion 341, or may be fixed to the plate portion 341.
In some embodiments, the metal friction element 36 is an inverted T-shape, but not limited thereto.
In some embodiments, the mounting plate 8 and the shell positioning turntable 1 are respectively provided with an inclination angle sensor 81 and a rotation angle sensor 11 electrically connected to the controller 5, and the controller 5 controls the distance measuring sensor 32 to perform distance measuring operation according to the rotation angle data of the rotation angle sensor 11. By means of this design, it is possible to ensure an accurate determination whether edge H1 or corner H2 is in the position to be rubbed.
In some embodiments, the elastic body 43 is sleeved on the push rod 44, but not limited thereto.
In some embodiments, the elastic body 43 is a spring, but not limited thereto.
The above disclosure is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, so that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.
Claims (10)
1. The automatic friction test jig for the shell is characterized by comprising a shell positioning rotary disc, a rotary disc driving mechanism, a friction assembly mounting structure and a controller, wherein the rotary disc driving mechanism is electrically connected with the controller, the rotary disc driving mechanism is used for driving the shell positioning rotary disc to rotate according to the control of the controller, the friction assembly comprises a friction executing assembly and a friction adjusting assembly, the friction executing assembly comprises a friction part and a distance measuring sensor which are positioned at the lower end of the friction executing assembly, and a sliding part which is positioned at the upper end of the friction executing assembly, the friction part is used for rubbing edges of the shell on the shell positioning rotary disc or corners between the edges, the distance measuring sensor is used for measuring the distance between the distance measuring sensor and the edges of the shell, and the controller judges whether the edges or the corners are located at positions to be rubbed according to the measuring result of the distance measuring sensor, but friction adjustment subassembly lateral shifting ground is installed friction subassembly mounting structure, friction adjustment subassembly includes the holding casing and locates the switching mechanism, elastomer and the push rod of holding casing, the sliding part can be installed with sliding from top to bottom the lower extreme of holding casing, elastomer and push rod all with the switching mechanism is connected, switching mechanism with controller electric connection, when judging that the edge is in treating the friction position, switching mechanism is in make under the control of controller the elastomer is in the indentation state that makes upwards and makes the push rod stretches out downwards and withstands the sliding part, when judging that the corner is in treating the friction position, switching mechanism is in under the control of controller make the push rod be in the indentation state that makes the elastomer stretches out downwards and the butt the sliding part.
2. The automatic friction test fixture for shell material according to claim 1, further comprising a support, a tilt driving motor, a tilt shaft and a mounting plate, wherein the support comprises two side plates disposed opposite to each other, two ends of the tilt shaft are respectively mounted on the two side plates, the tilt driving motor is mounted on one of the two side plates to drive the tilt shaft to rotate under the control of the controller, the mounting plate is fixed on the tilt shaft, the turntable driving mechanism comprises a rotating motor and a rotating shaft electrically connected to the controller, the rotating motor is fixed on the mounting plate, and the rotating motor drives the shell material positioning turntable to rotate through the rotating shaft.
3. The automatic friction test fixture of claim 2 wherein said frame further includes a cross member extending inwardly from an upper end of one of said side plates for providing said friction pack mounting structure.
4. The automatic friction test fixture for shell material according to claim 1, wherein the sliding portion includes a sliding column and a stopping portion extending outward from an upper end of the sliding column, a sliding chamber passing downward and a side sliding groove communicating with the sliding chamber in a lateral direction are formed at a lower end of the accommodating housing, a stopping wall is formed at a lower end of the side sliding groove, the sliding column is slidably disposed in the sliding chamber, and the stopping portion is slidably disposed in the side sliding groove and stopped by the stopping wall.
5. The automatic friction test fixture for shell material according to claim 4, wherein opposite sides of the sliding column respectively extend outward to form the stopping portion, opposite sides of the sliding chamber respectively form the side sliding slot and the stopping wall corresponding to the stopping portion, and the side sliding slot outwardly penetrates through the accommodating casing.
6. The automatic friction test fixture for shell material according to claim 1, wherein the friction executing assembly comprises a sliding member, a load sensor and a metal friction member, which are sequentially connected from top to bottom, the sliding portion is formed on the sliding member, the load sensor is electrically connected with the controller, and the friction portion is formed on the metal friction member.
7. The automatic friction test fixture for shell material of claim 6, wherein said sliding member includes a plate portion and said sliding portion extending upward from a middle position of said plate portion, and said load sensor is mounted on said plate portion.
8. The automatic friction test fixture for shell material of claim 6, wherein the metal friction member is in an inverted T shape.
9. The automatic friction test fixture for shell material according to claim 2, wherein the mounting plate and the shell material positioning turntable are respectively provided with an inclination angle sensor and a rotation angle sensor electrically connected with the controller, and the controller controls the distance measuring sensor to perform distance measuring operation according to rotation angle data of the rotation angle sensor.
10. The automatic friction test fixture for shell material of claim 1, wherein the push rod is sleeved with the elastic body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910939283.9A CN110702501B (en) | 2019-09-29 | 2019-09-29 | Automatic shell friction test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910939283.9A CN110702501B (en) | 2019-09-29 | 2019-09-29 | Automatic shell friction test fixture |
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| CN110702501A CN110702501A (en) | 2020-01-17 |
| CN110702501B true CN110702501B (en) | 2022-03-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112683773B (en) * | 2020-11-30 | 2024-03-12 | 中国汽车工程研究院股份有限公司 | Turntable type switching structure of material friction abnormal sound test bed |
| CN115054030B (en) * | 2022-06-27 | 2024-02-02 | 意尔康股份有限公司 | Wear-resisting detector of shoes |
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|---|---|---|---|---|
| US6418776B1 (en) * | 2000-07-24 | 2002-07-16 | Center For Tribology, Inc. | Method and apparatus for measuring friction and wear characteristics of materials |
| US7000451B1 (en) * | 2003-11-17 | 2006-02-21 | Wegand John C | Friction testing device |
| CN204405467U (en) * | 2015-03-04 | 2015-06-17 | 中物院成都科学技术发展中心 | A kind of wear-resistant tester |
| CN106053334A (en) * | 2015-09-29 | 2016-10-26 | 北京林业大学 | Friction and pressurization detection test stand |
| CN206362655U (en) * | 2017-01-10 | 2017-07-28 | 东莞市辉达仪器有限公司 | A kind of electric abrasion resistance testing machine |
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2019
- 2019-09-29 CN CN201910939283.9A patent/CN110702501B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6418776B1 (en) * | 2000-07-24 | 2002-07-16 | Center For Tribology, Inc. | Method and apparatus for measuring friction and wear characteristics of materials |
| US7000451B1 (en) * | 2003-11-17 | 2006-02-21 | Wegand John C | Friction testing device |
| CN204405467U (en) * | 2015-03-04 | 2015-06-17 | 中物院成都科学技术发展中心 | A kind of wear-resistant tester |
| CN106053334A (en) * | 2015-09-29 | 2016-10-26 | 北京林业大学 | Friction and pressurization detection test stand |
| CN206362655U (en) * | 2017-01-10 | 2017-07-28 | 东莞市辉达仪器有限公司 | A kind of electric abrasion resistance testing machine |
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Effective date of registration: 20210618 Address after: 330000 2 / F, building D, industrial park, 2999 Tianxiang Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Applicant after: Nanchang Qinsheng Electronic Technology Co.,Ltd. Address before: 523000 Building 1, No.9 industrial North Road, Songshanhu Park, Dongguan City, Guangdong Province Applicant before: Dongguan Yuqin Communication Technology Co.,Ltd. |
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