CN112665966A

CN112665966A - Precision controller

Info

Publication number: CN112665966A
Application number: CN202011480547.8A
Authority: CN
Inventors: 曾谊
Original assignee: Oppo Chongqing Intelligent Technology Co Ltd
Current assignee: Oppo Chongqing Intelligent Technology Co Ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-04-16

Abstract

The application discloses a precision controller. The precision controller comprises a fixed supporting rod, a movable supporting rod, a first adjusting module and a measuring positioning block. The fixed support rod comprises a first plane for placing a sample, the movable support rod comprises a second plane for placing the sample, and the first plane is flush with the second plane. The first adjusting module is connected with the movable supporting rod and used for adjusting the distance between the movable supporting rod and the fixed supporting rod. The measuring positioning block is arranged between the fixed supporting rod and the movable supporting rod and used for limiting the distance between the fixed supporting rod and the movable supporting rod so as to determine the span of the sample. The precision controller of this application is through setting up the measurement locating piece between fixed support bar and removal bracing piece, and wherein, the measurement locating piece size is relatively fixed, can solve the span precision problem of sample experiment through the span of measuring the accurate control sample of locating piece.

Description

Precision controller

Technical Field

The application relates to the technical field of precision control, in particular to a precision controller.

Background

The three-rod bending experiment is a general conventional experiment for testing the mechanical property of materials, and the reasonability of the design of the three-rod bending clamp directly influences the experiment test result.

At present, the sliding block type lower supporting rod is utilized to slide through the guide rail so as to adjust the span, and the precision of the span adjusting mode is ensured by the graduated scale on the guide rail. Because the minimum scale on the span adjusting graduated scale is 0.5mm, the clamp is suitable for testing samples with the span of more than 50mm by converting 1% of span error, and is not suitable for samples with the span of less than 10mm, and the error is large.

Disclosure of Invention

In view of this, embodiments of the present application provide an accuracy controller.

The application provides a precision controller, which is applied to detecting mechanical properties of materials. The precision controller comprises a fixed supporting rod, a movable supporting rod, a first adjusting module and a measuring positioning block. The fixed support rod comprises a first plane for placing the test sample; the movable support rod comprises a second plane for placing a sample, and the first plane is flush with the second plane. The first adjusting module is connected with the movable supporting rod and used for adjusting the distance between the movable supporting rod and the fixed supporting rod. The measuring positioning block is arranged between the fixed supporting rod and the movable supporting rod and used for limiting the distance between the fixed supporting rod and the movable supporting rod so as to determine the span of the sample.

The precision controller of this application is through setting up the measurement locating piece between fixed support bar and removal bracing piece, and wherein, the measurement locating piece size is relatively fixed, can solve the span precision problem of sample experiment through the span of measuring the accurate control sample of locating piece.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of a precision controller according to some embodiments of the present application;

FIG. 2 is a schematic diagram of a precision controller according to some embodiments of the present application;

FIG. 3 is a schematic diagram of a precision controller according to some embodiments of the present application;

FIG. 4 is a schematic diagram of a precision controller according to some embodiments of the present application;

FIG. 5 is a schematic diagram of the structure of a first or second conditioning module in a precision controller according to some embodiments of the present application;

FIG. 6 is a schematic diagram of the structure of a first or second conditioning module in a precision controller according to some embodiments of the present application;

FIG. 7 is a schematic diagram of a measurement positioning block in an accuracy controller according to some embodiments of the present disclosure.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

The three-rod bending experiment is a general conventional experiment for testing the mechanical property of materials, and the reasonability of the design of the three-rod bending clamp directly influences the experiment test result. At present, the sliding block type lower supporting rod is utilized to slide through the guide rail so as to adjust the span, and the precision of the span adjusting mode is ensured by the graduated scale on the guide rail. Because the minimum scale on the span adjusting graduated scale is 0.5mm, the clamp is suitable for testing samples with the span of more than 50mm by converting 1% of span error, and is not suitable for samples with the span of less than 10mm, and the error is large.

In order to solve the above problem, referring to fig. 1 and fig. 2, the present application provides a precision controller 100 for detecting mechanical properties of a material. The precision controller 100 includes a fixed support bar 10, a movable support bar 20, a first adjusting module 30, and a measuring positioning block 40. The fixed support bar 10 includes a first plane 13 on which a sample is placed. The movable support rod 20 comprises a second plane 23 for placing the sample, and the first plane 13 is flush with the second plane 23. The first adjusting module 30 is connected to the movable support rod 20, and the first adjusting module 30 is used for adjusting the distance between the movable support rod 20 and the fixed support rod 10. The measuring positioning block 40 is disposed between the fixed support bar 10 and the movable support bar 20, and the measuring positioning block 40 is used for limiting the distance between the fixed support bar 10 and the movable support bar 20 to determine the span of the sample.

The precision controller 100 of the application is through setting up the measuring positioning block 40 between fixed support rod 10 and movable support rod 20, wherein, the measuring positioning block 40 size is relatively fixed, can be through the span of measuring positioning block 40 accurate control sample, has solved the span precision problem of sample experiment.

Specifically, the fixed supporting rod 10 may be integrally disposed with the supporting platform 15, which is beneficial to simplify the manufacturing process of the precision controller 100 and prevent the fixed supporting rod 10 from falling off. In addition, the fixed support bar 10 can also be fixedly connected with the bearing platform 15 through bolts as shown in fig. 3, so that the fixed support bar 10 is tightly matched with the bearing platform 15, the fixed support bar 10 can be effectively prevented from falling off, and the assembly is simple.

The movable support bar 20 and the fixed support bar 10 are placed on the same bearing plane 11 of the bearing platform 15, and the movable support bar 20 can adjust the distance between the movable support bar 20 and the fixed support bar 10 through the first adjusting module 30. For example, when a sample is placed and carried on the first plane 13 and the second plane 23, the first adjusting module 30 can adjust the movable supporting rod 20 to move in the direction a away from the fixed supporting rod, and the distance between the movable supporting rod 20 and the fixed supporting rod 10 can be flexibly adjusted to adapt to different spans of the sample. Referring to fig. 4, the movable support rod 20 is provided with a guide groove 17 corresponding to the guide rail 21 on the supporting platform 15, and after the guide rail 21 is engaged with the guide groove 17, the movable support rod 20 can move on the guide rail 21 in the direction a or the direction B along with the adjustment of the first adjusting module 30, so that the structure is simple, and the manufacturing process of the precision controller 100 can be simplified.

The first adjusting module 30 and the movable support rod 20 can be connected through a screw rod 31, and the rotary motion track of the first adjusting module 30 can be converted into the linear motion track of the movable support rod 20, so that the moving position of the movable support rod 20 can be flexibly adjusted. In addition, a first support 14 is further disposed between the first adjusting module 30 and the movable support rod 20, and a screw 31 connecting the first adjusting module 30 and the movable support rod 20 can be fixedly supported by the first support 14.

In addition, the first adjusting module 30 is marked with scales for determining the distance between the scale value of the first adjusting module 30 and the movable supporting rod 20. The first adjusting module 30 may be cylindrical, and the scale may be engraved on the outer circumference of the cylinder of the first adjusting module 30 as shown in fig. 5, or may be engraved on the upper and lower bottom surfaces of the cylinder of the first adjusting module 30 (as shown in fig. 6), so that a user may accurately adjust the distance of the movable support rod 20 moving towards the a direction or the B direction through the scale, and the first adjusting module 30 is further provided with a mark position corresponding to the initial 0 scale, and the mark position is fixed, so that the span of the sample may be calculated according to the number of turns of the rotation and the current scale at the mark position.

In addition, the lead screw 31 is marked with a fixed scale, and after the user rotates the first adjusting module 30 to adjust the distance of the movable support rod 20, the user can determine the moving distance of the movable support rod 20 by reading the fixed scale on the lead screw 31 and the movable scale of the first adjusting module 30.

It should be noted that, as shown in fig. 3, the span in this application refers to a distance d1 between the first side 12 of the fixed support bar 10 and the second side 22 of the movable support bar 20.

Referring to fig. 1 and 2 again, in some embodiments, the first adjusting module 30 is used to adjust the distance between the movable supporting rod 20 and the fixed supporting rod 10 to be 0.025mm, so as to ensure that the distance between the movable supporting rod 20 and the fixed supporting rod 10 is 0.025mm, which can effectively improve the span detection accuracy of the detected sample. Specifically, as shown in fig. 5 or fig. 6, the number of the scales of one circle of the first adjusting module 30 can be set to 20, and the interval between every two adjacent scales is 0.025mm, that is, when the user rotates the first adjusting module 30 one circle in the direction a (or the direction B), the user can drive the movable supporting rod 20 to move 0.5mm in the direction a (or the direction B) relative to the distance of the fixed supporting rod 10, thereby effectively improving the span detection accuracy of the detected sample.

The measuring block 40 includes a plurality of standard blocks having different widths, and the measuring block is used to limit a distance between the fixed support bar and the movable support bar according to the widths of the standard blocks to determine a span of the sample. Specifically, referring to fig. 7, for example, there are 5 standard positioning blocks, which are respectively a standard positioning block 1, a standard positioning block 2, a standard positioning block 3, a standard positioning block 4 and a standard positioning block 5, the length L and the thickness h of the 5 positioning blocks may be set to the same specification, and the width w may be set to different specifications, for example, the width w of the standard positioning block 1 is 2mm, the width w of the standard positioning block 2 is 3mm, the width w of the standard positioning block 4 is 4mm, and the width w of the standard positioning block 5 is 5mm, and the standard positioning blocks of different specifications may be selected according to the estimated lengths of different samples. It is understood that the manufacturing accuracy of the measuring and positioning block 40 can be guaranteed to be within 0.01mm, so that the precision controller 100 can precisely control the span of the sample.

The precision controller of this application is through setting up measurement locating piece 40 between fixed support rod 10 and movable support rod 20, and the preparation precision of measuring locating piece 40 can be guaranteed within 0.01mm, the span of can accurate control sample. Namely, the precision controller 100 is suitable for small-size samples with a span larger than 1mm, and solves the precision control problem of the small-size samples (such as mainboard chips) in the three-rod bending test.

In some embodiments, the measuring positioning block 40 is connected to the fixed support rod 10 by a snap or magnetic fit to fix the measuring positioning block 40.

In one embodiment, the measuring positioning block 40 is connected with the fixed support bar 10 by means of a snap. Specifically, a clamping groove (or a clamping column) can be formed in the surface of the fixed support rod 10 opposite to the movable support rod 20, correspondingly, a clamping column (or a clamping groove) can be formed in one side of the measuring positioning block 40 opposite to the fixed support rod 10, the measuring positioning block 40 is fixedly connected with the fixed support rod 10 through the matching of the clamping groove and the clamping column, the measuring positioning block 40 is guaranteed not to slide or incline easily in the measuring process, and the inaccuracy of the measured sample span precision is avoided.

In another embodiment, the measuring positioning block 40 is coupled to the fixed support bar 10 in a magnetic fitting manner to fix the measuring positioning block 40. Specifically, as shown in fig. 4, two cylindrical magnets 18 embedded at positions 1 and 2 are disposed on the surface of the fixed support rod 10, which is attached to the measuring positioning block 40, and the measuring positioning block 40 may be a block made of iron or other magnetic material. When the measuring and positioning block 40 is placed between the fixed support rod 10 and the movable support rod 20, the joint surface of the measuring and positioning block 40 and the joint surface of the fixed support block 10 can be firmly jointed, the measuring and positioning block 40 is not easy to loosen or deflect, and the accuracy of measuring the span of a sample is ensured.

Referring to fig. 1, in some embodiments, the precision controller 100 further includes a sample placing block 50, and the sample placing block 50 is disposed above the fixed support bar 10 and is used for blocking one end of the sample to define the position of the sample. The sample placing stop block 50 can be a convex block as described in fig. 1, one side of the flat protrusion is carried at one end of the fixed support rod 10, the sample placing stop block 50 can be connected with the fixed support rod 10 through a connecting rod in a relatively movable manner, the sample placing stop block can be two connecting rods 51 as shown in fig. 1, the two connecting rods 51 and the screw rod 61 form a stable triangular structure, and the sample placing stop block 50 can move stably relative to the fixed support rod 10 in the direction B. In addition, under the unchangeable condition of the span of keeping of different length samples, can place dog 50 to the length in order to adapt to different samples through adjusting the sample, need not adjust many times and remove bracing piece 20 and can realize the same span of different length samples and detect the effect of mechanical properties. Similarly, the position of the stop block 50 corresponding to the fixed support rod 10 is placed by adjusting the sample, so that the mechanical properties of the samples with different lengths under different spans can be tested, and various test effects can be realized.

The precision controller 100 further comprises a second adjusting module 60, the second adjusting module 60 is connected with the sample placing block 50, and the second adjusting module 60 is used for adjusting the moving distance of the sample placing block 50 on the first plane 13 so as to control the carrying length of the sample placed on the first plane 13. The sample placing block 50 and the second adjusting module 60 may also be connected by a screw 61, and a second supporting member 16 is further disposed between the sample placing block 50 and the second adjusting module 60, and the second supporting member 16 may have the same specification as the first supporting member 14, so as to simplify the manufacturing process of the precision controller 100.

The second adjusting module 60 adjusts the distance of the sample placing stopper 50 with respect to the fixed support bar 10 through the screw rod 61. Specifically, if the length of the sample on the second plane 23 is longer than the length of the sample on the first plane 13 while keeping the span of the sample constant, the second adjusting module 60 can adjust the sample placing stopper 50 to move in the direction B away from the fixed support rod 10 until the length of the sample on the second plane 23 is equal to the length of the sample on the first plane 13, so as to flexibly adjust the distance between the sample placing stopper 50 and the fixed support rod 10 according to the length of the sample. Therefore, the precision controller 100 of the present application can adjust the distance between the sample placing stopper 50 and the fixed support rod 10 to adapt to the length of different samples under the condition of keeping the span of samples of different lengths unchanged, and can realize the effect of detecting the mechanical performance of the same span of samples of different lengths without adjusting the movable support rod 20 for many times.

In some embodiments, the second adjusting module 60 adjusts the moving distance of the sample placing block 50 on the first plane 13 to 0.025mm, which can ensure that the moving distance of the sample placing block 50 is accurate to 0.025mm, and can effectively improve the length detection accuracy of the detected sample. Specifically, as shown in fig. 5 or fig. 6, the second adjusting module 60 may be set to have the same scale marks as the first adjusting module 30, that is, the number of the scales of one circle is set to be 20, and the interval between every two circles is 0.025mm, that is, when the user rotates the first adjusting module 30 one circle in the direction a, the distance between the movable supporting rod 20 and the fixed supporting rod 10 may be driven to move by 0.5mm in the direction a (or in the direction B), or when the user rotates the first adjusting module 30 one circle in the direction B, the distance between the movable supporting rod 20 and the fixed supporting rod 10 may be driven to move by 0.5mm in the direction a (or in the direction B), and the span detection accuracy of the detected sample can be effectively improved.

The screw rod 61 is marked with the same fixed scale as the screw rod 31, and after the user rotates the second adjusting module 60 to adjust the distance of the fixed support rod 10, the moving distance of the sample placing stopper 50 can be determined by reading the fixed scale on the screw rod 61 and the movable scale of the second adjusting module 60.

Referring again to fig. 1, in some embodiments, the precision controller 100 further includes a pressing member 70 and a positioning platform 80, the fixed support rod 10 and the movable support rod 20 are disposed on the positioning platform 80, and the positioning platform 80 is used for moving the fixed support rod 10 and the movable support rod 20 to control the pressing member 70 to be aligned with the center of the span of the sample.

The pressing member 70 includes a pressing head portion 71 having a thin and sharp edge and a body portion 72 connected to the pressing head portion 71. The edge of the pressing head part 71 is in a sharp knife shape and is in a symmetrical structure, so that relatively accurate mechanical property data can be generated when the pressing piece 70 integrally presses the sample downwards. Before the precision controller 100 places the sample, the precision controller 100 may be centered by using the pressing member 70, that is, the pressing member 70 may be moved to a position between the fixed support rod 10 and the movable support rod 20, so that the fixed support rod 10 and the movable support rod 20 can just clamp the pressing member 70, and the center of the pressing member 70 is the center of the fixed support rod 10 and the movable support rod 20 at this time. Therefore, the initial span of the precision controller 100 is determinable and is equal to the upper width d of the indenter section 71, for example, when the width d is 4mm, the initial span a is 4 mm. When the position of the pressing piece 70 at this time is fixed and the pressing piece is directly and vertically lifted for a certain distance, the mechanical properties of samples with different lengths can be tested when the span is 4 mm.

The positioning stage 80 includes a fixed portion 81, a movable portion 82, and an adjusting member 83. The fixing portion 81 may be a circular turntable structure, and the lower end of the fixing portion 81 is fixedly connected to the connecting portion 90 connected to the external testing device, so that the position of the fixing portion 81 in the direction parallel to the pressing member 70 is fixed, but the fixing portion 81 can drive the moving portion 82 to rotate by any angle, so that the user can conveniently operate the precision controller 100 in different directions. After the centering operation of the fixing portion 81 and the pressing member 70 is completed, both are relatively fixed.

The moving part 82 carries the fixed support bar 10 and the movable support bar 20, and the moving part 82 can be fixedly connected to the lower end of the carrying platform 15 through a pin. The adjusting member 83 can adjust the moving portion 82 to move relative to the fixing portion 81 so that the pressing member 70 is aligned with the span center position of the sample.

The positioning stage 80 can be a micrometer optical fine adjustment stage, wherein the moving portion 82 and the adjusting member 83 constitute a micrometer fine adjustment structure. Referring to fig. 1 to 3, the moving portion 82 and the adjusting member 83 may be connected by a screw 84. Similar to the first and

second adjusting modules

30 and 60, the adjusting member 83 may also be marked with scales, so that the adjusting member 83 adjusts the moving part 82 to move with a precision of 0.01mm relative to the fixed part. Specifically, the number of the scales of the adjusting member 83 can be set to 50, and the interval between each two scales is 0.01mm, that is, the user rotates the first adjusting module 30 for one turn in the direction a (or the direction B), so that the distance between the movable supporting rod 20 and the fixed supporting rod 10 can be driven to move 0.5mm in the direction a (or the direction B), and the span detection precision of the detected sample is improved.

In addition, since the moving part 82 can be adjusted left and right, for example, when the test span of the sample needs to be increased by 2mm, the position of the fixed pressing part 70 is not moved, the movable support rod 20 can be adjusted by 2mm in the direction a, and the moving part 82 can be adjusted by 1mm in the direction B opposite to the direction a, so that the pressing part 70 can be aligned with the center of the span, and the accuracy of adjustment can be ensured within 0.01mm, thereby ensuring the reliability of the test result of the small-sized sample. For example, when the test span of the sample needs to be reduced by 2mm, the position of the fixed pressing member 70 is not moved, the movable support rod 20 can be adjusted by 2mm in the direction B, and the movable portion 82 can be adjusted by 1mm in the direction a opposite to the direction B, so that the pressing member 70 can be aligned with the center of the span, the adjustment precision can be guaranteed within 0.01mm, and the reliability of the test result of the small-sized sample can be guaranteed.

The precision controller can accurately control different test spans of the sample by adjusting the moving part of the positioning platform 80 after centering operation is carried out on the pressing piece 70 and the positioning platform 80, the adjusting precision can be guaranteed within 0.01mm, the reliability of a small-size sample test result is guaranteed, and the precision control problem of the small-size sample (such as a main board chip) in a three-rod bending test is solved.

In the description herein, reference to the description of the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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 of the feature. In the description of the present application, "a plurality" means at least two, e.g., two, three, unless specifically limited otherwise.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art within the scope of the present application, which is defined by the claims and their equivalents.

Claims

1. A precision controller is applied to detecting mechanical properties of materials, and is characterized by comprising:

the fixed support rod comprises a first plane for placing the sample; and

the movable support rod comprises a second plane for placing a sample, and the first plane is flush with the second plane;

the first adjusting module is connected with the movable supporting rod and is used for adjusting the distance between the movable supporting rod and the fixed supporting rod;

the measuring positioning block is arranged between the fixed supporting rod and the movable supporting rod and used for limiting the distance between the fixed supporting rod and the movable supporting rod so as to determine the span of the sample.

2. The accuracy controller of claim 1, wherein the measuring positioning block is connected with the fixed supporting rod in a buckling or magnetic matching mode to fix the measuring positioning block.

3. The precision controller of claim 2, wherein the first adjusting module is configured to adjust the distance of the movable support bar relative to the fixed support bar with a precision of 0.025 mm.

4. The precision controller of claim 1, further comprising a sample placement stop disposed above the stationary support bar for stopping an end of the sample to define a position of the sample.

5. The precision controller according to claim 4, further comprising a second adjusting module, wherein the second adjusting module is connected to the sample placing block, and the second adjusting module is configured to adjust a moving distance of the sample placing block on the first plane to control a carrying length of the sample placed on the first plane.

6. The precision controller of claim 5, wherein the second adjustment module adjusts the distance of movement of the specimen placement block in the first plane to a precision of 0.025 mm.

7. The accuracy controller of claim 1, wherein the measuring positioning block comprises a plurality of standard positioning blocks, the plurality of standard positioning blocks have different widths, and the measuring positioning block is used for limiting the distance between the fixed supporting rod and the movable supporting rod according to the widths of the standard positioning blocks so as to determine the span of the sample.

8. The precision controller of claim 1, further comprising a pressing member and a positioning platform, wherein the fixed support bar and the movable support bar are disposed on the positioning platform, and the positioning platform is used for moving the fixed support bar and the movable support bar to control the pressing member to be aligned with the center of the span of the sample.

9. The apparatus of claim 8, wherein the positioning stage comprises a fixed portion, a movable portion and an adjusting member, the movable portion carries the fixed support rod and the movable support rod, the fixed portion is fixed relative to the pressing member, and the adjusting member is used for adjusting the movable portion to move relative to the fixed portion to control the pressing member to align with the center of the span of the sample.

10. The precision controller of claim 9, wherein the adjusting member adjusts the precision of the movement of the moving part relative to the fixed part to 0.01 mm.