CN113984516A

CN113984516A - Method and device for detecting corner strength of inductance product

Info

Publication number: CN113984516A
Application number: CN202110572322.3A
Authority: CN
Inventors: 邹松青; 彭美文; 李志仙
Original assignee: Hotland Electronics Shenzhen Co ltd
Current assignee: Hotland Electronics Shenzhen Co ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2022-01-28
Anticipated expiration: 2041-05-25
Also published as: CN113984516B

Abstract

The application relates to the technical field of strength detection of inductance products, in particular to a method and a device for detecting the corner strength of the inductance product, which comprises a workbench horizontally arranged, a first clamping plate is fixedly arranged at the top of the workbench, a second clamping plate is arranged above the first clamping plate, the first clamping plate is detachably connected with the second clamping plate, the first clamping plate and the second clamping plate are used for clamping a test block, one side of the first clamping plate is provided with a first notch, a second notch is correspondingly arranged on one side of the second clamping plate, when the first clamping plate and the second clamping plate are used for clamping the test block in a matching way, the first notch with the corner that the cooperation of second breach is used for the test block stretches out, corner intensity detection mechanism is installed at the top of workstation, corner intensity detection mechanism is used for detecting the partial corner intensity that the test block stretches out. The method and the device have the effect of improving the accuracy of the test value.

Description

Method and device for detecting corner strength of inductance product

Technical Field

The application relates to the technical field of strength detection of inductance products, in particular to a method and a device for detecting corner strength of an inductance product.

Background

An inductor is a component that can convert electrical energy into magnetic energy for storage. With the development of the inductance industry and the continuous improvement of the manufacturing and research and development technologies, an integrally formed inductor appears in the inductor. The integrated inductor comprises a magnet and a winding body, wherein the winding body is embedded in metal magnetic powder by a magnet system and is formed by die casting.

In modern society, all integrated inductors are manufactured in batches in factories, and after a batch of integrated inductors are manufactured, the integrated inductors are usually required to be checked and a part of the integrated inductors is taken out to be used as a test block, and a strength detection device is used for destructive test, so that the overall quality of the whole batch of integrated inductors is ensured.

Among the correlation technique, an intensity detects dress ware includes the workstation that the level was placed, and the caliber that is used for testing integrated into one piece inductor intensity is installed at the top of workstation, and the caliber is including the needle of exerting pressure that is vertical setting and being used for driving the actuating mechanism that the needle of exerting pressure followed vertical direction reciprocating motion, and the contact pressure tester is installed at the top of exerting pressure needle, and the contact setting of contact pressure tester is in the bottom of exerting pressure needle. Set up like this, the during operation, the staff places the test block on the workstation earlier, then starts actuating mechanism control and applys pressure needle downstream and to the corner applys pressure of test block, until the test block is broken and through the pressure value of contact pressure tester record this moment, finally through comparing measured value and normal value and drawing the conclusion whether qualified.

In view of the above-mentioned related technologies, the inventor believes that since the volume of the integrally formed inductor product is small, and the surface of the inductor formed by die casting is smooth, in the process of applying force to the corners of the test blocks by using the pressing needles, the arrangement of alignment is performed only by manual work, and the accommodation makes the points of application of force applied to each test block different, which finally causes inaccuracy of test implantation and affects the measurement result.

Disclosure of Invention

In order to improve the accuracy of a test value, the application provides an inductance product corner strength detection method and a detection device thereof.

The application provides a method and a device for detecting the corner strength of an inductance product, which adopt the following technical scheme:

the first aspect, an inductance product corner intensity detection device, including being the workstation that the level was placed, the top fixed mounting of workstation has first splint, the top of first splint is provided with the second splint, first splint with the connection can be dismantled to the second splint, first splint with the second splint are used for the centre gripping test block, first breach has been seted up to one side of first splint, the second breach has been seted up to one side correspondence of second splint, first splint with when the second splint are used for the tight test block of cooperation clamp, first breach with the corner that the cooperation of second breach is used for the test block stretches out, corner intensity detection mechanism is installed at the top of workstation, corner intensity detection mechanism is used for detecting partial corner intensity that the test block stretches out.

Through adopting above-mentioned technical scheme, during the test, place the test block at the top of first splint, then use second splint and first splint cooperation to press from both sides the test block tight, make the first breach of first splint and the second breach department of second splint stretch out the corner from the test block, then start corner intensity detection mechanism and test the test block, set up like this, replace artifical location to the test block through the cooperation of first splint and second splint, can exert pressure to the location accuracy of the point of application of force of every test block, be favorable to improving the test value.

Optionally, a first positioning groove is formed in the top of the first clamping plate, a second positioning groove is formed in the bottom of the second clamping plate, and the first positioning groove and the second positioning groove are matched with each other to accommodate the test block.

Through adopting above-mentioned technical scheme, the cooperation setting of first constant head tank and second constant head tank can make things convenient for the tester with the test block joint in first constant head tank and second constant head tank, has further improved the location effect to the test block.

Optionally, the groove angle of the first positioning groove is provided with an anti-collision pad.

Through adopting above-mentioned technical scheme, the setting of crashproof pad can play the guard action to the edge of test block, reduces to extrude between test block and the first splint and cause the condition emergence of corner breakage.

Optionally, one end of the first clamping plate is set as a hinged end, the other end of the first clamping plate is set as a connecting end, the connecting end of the first clamping plate is hinged to the second clamping plate, and the connecting end of the first clamping plate is detachably connected with the second clamping plate through a connecting piece.

Through adopting above-mentioned technical scheme, during the test, put into first constant head tank with the test block to rotate second splint lid and close, then fix first splint and second splint through the connecting piece, thereby realized first splint and second splint can dismantle the connection effect.

Optionally, the connecting piece is an insert rod, a connecting block is fixed to the connecting end of the first clamping plate, a groove is formed in one side, facing the second clamping plate, of the connecting block, an insertion hole is formed in one side wall of the connecting block, penetrates through the other side wall of the connecting block, the insertion hole is communicated with the groove, and the insert rod is in inserted fit with the insertion hole; one end of the second clamping plate is correspondingly fixed with an insertion block, the insertion block is in insertion fit with the groove, connecting holes in insertion fit with the insertion rods are formed in the two sides of the insertion block in a penetrating mode, and when the insertion block is in insertion fit with the groove, the connecting holes are aligned to the insertion holes and communicated with the insertion holes.

Through adopting above-mentioned technical scheme, during the connection, rotate the second splint for the cooperation of pegging graft of inserted block and recess, connecting hole and jack alignment and be linked together this moment, then insert the inserted bar in the slot and pass the connecting hole and fix the inserted block, thereby realized the fixed connection of first splint and second splint, when needing to dismantle, can extract the jack with the inserted bar, then remove the relation of connection of inserted block and recess, and then realized that first splint and second splint pass through the effect that the connecting piece can dismantle the connection.

Optionally, one end of the inserted bar is provided with a limiting part, the width of the limiting part is greater than that of the jack, and one end of the inserted bar, which is far away from the limiting part, is detachably connected with a limiting rod used for limiting the inserted bar to be separated from the jack.

Through adopting above-mentioned technical scheme, the setting of gag lever post is favorable to improving inserted bar and jack connection's stability to be favorable to improving first splint and second splint fixed connection's stability.

Optionally, corner intensity detection mechanism is including being vertical the installation the base of workstation top surface, one side of base slides and is provided with the needle of exerting pressure, the needle of exerting pressure is vertical setting, just the needle of exerting pressure is located be used for broken test block's corner directly over the second splint, install actuating mechanism in the base, actuating mechanism is used for the drive the needle of exerting pressure is along vertical direction and is lift movement, contact pressure tester is installed at the top of base, just contact pressure tester's contact is fixed the bottom of the needle of exerting pressure.

By adopting the technical scheme, during testing, the driving mechanism is started, so that the driving mechanism drives the pressing needle to move downwards along the vertical direction and crush the corners of the test block, the test value can be read through the contact pressure tester at the moment, and the effect that the corner strength detection mechanism is used for detecting the corner strength of the extending part of the test block is realized.

Optionally, the driving mechanism includes a rack, the rack is vertically slidably installed in the base, the rack is fixedly connected with the pressing needle through a connecting rod, and a driving assembly for driving the rack to slide is installed in the base.

By adopting the technical scheme, during testing, the driving assembly is started to drive the rack to slide along the vertical direction, so that the rack drives the pressing needle to slide along the vertical direction through the connecting rod, and the effect of driving the pressing needle to move by the driving mechanism is realized.

Optionally, the driving assembly includes a motor installed in the base, and power is transmitted between the motor and the rack through a reduction gear set.

By adopting the technical scheme, the motor is started, and the motor transmits power to the rack through the reduction gear set, so that the rack slides up and down along the vertical direction, and the effect of driving the rack to slide by the driving assembly is realized.

In a second aspect, a method for detecting corner strength of an inductance product includes the following steps: s1, clamping the test block with the first positioning groove of the first clamping plate, then rotating to cover the second clamping plate, clamping the test block by matching the first clamping plate with the second clamping plate, and enabling the insertion block to be in inserting fit with the groove; s2, the inserted bar penetrates through the insertion hole and the connecting hole, and then the limiting rod is connected with the inserted bar to limit the inserted bar to be separated from the insertion hole, so that the first clamping plate and the second clamping plate are fixed; s3, starting a motor, wherein the motor transmits power to a rack through a reduction gear set, and the rack drives a pressing pin to move downwards through a connecting rod until the pressing pin crushes the corners of the test block; and S4, recording the test value of the contact pressure tester, comparing the test value with a normal value, and judging the difference between the strength of the test block and a normal product.

Through adopting above-mentioned technical scheme, utilize first splint and second splint to fix the test block, and then make the test block fix between first splint and second splint, conveniently fix a position the test block, save the artifical step of placing the test block, be favorable to exerting pressure and all fix a position the same application of force point to different test blocks, improve the accuracy of test value.

In summary, the present application includes at least one of the following beneficial technical effects:

1. during testing, the test block is placed at the top of the first clamping plate, the second clamping plate is matched with the first clamping plate to clamp the test block, so that the test block extends out of a corner from a first notch of the first clamping plate and a second notch of the second clamping plate, then the corner strength detection mechanism is started to test the test block, and the arrangement is that the matching of the first clamping plate and the second clamping plate replaces manual positioning of the test block, so that the positioning accuracy of the force application point of each test block can be exerted, and the test value can be improved;

2. the anti-collision pad is arranged, so that the edge of the test block can be protected, and the situation that the corner is broken due to extrusion between the test block and the first clamping plate is reduced;

3. the setting of gag lever post is favorable to improving inserted bar and jack connection's stability to be favorable to improving first splint and second splint fixed connection's stability.

Drawings

Fig. 1 is a schematic diagram of an overall structure of an apparatus for detecting corner strength of an inductance product in this embodiment.

Fig. 2 is an assembly diagram of the first clamping plate and the second clamping plate in the device for detecting corner strength of an inductance product in the present embodiment.

Fig. 3 is a partial cross-sectional view of a base of an apparatus for detecting corner strength of an inductance product according to this embodiment.

Fig. 4 is a partial cross-sectional view of another view angle of the apparatus for detecting corner strength of an inductance product in this embodiment.

Description of reference numerals: 1. a work table; 2. a first splint; 3. a second splint; 4. a first notch; 5. a second notch; 6. a hinged end; 7. a connecting end; 8. inserting a rod; 81. a limiting part; 9. connecting blocks; 10. a groove; 11. a jack; 12. inserting a block; 13. connecting holes; 14. a limiting rod; 15. a first positioning groove; 16. a second positioning groove; 17. a base; 18. pressing needles; 19. a contact pressure tester; 20. a rack; 21. a motor; 22. a driving gear; 23. a driven gear; 24. a chute; 25. a slide bar; 26. a limiting groove; 27. connecting grooves; 28. a connecting rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

In a first aspect, an embodiment of the application discloses an inductance product corner strength detection device. Referring to fig. 1 and 2, inductance product corner intensity detection device is including being workstation 1 that the level was placed, and the top fixed mounting of workstation 1 has first splint 2, and the top of first splint 2 is provided with second splint 3, and first splint 2 can be dismantled with second splint 3 and be connected, and first splint 2 cooperatees with second splint 3 and is used for pressing from both sides tight test block. First breach 4 has been seted up to one side of first splint, and second breach 5 has been seted up to one side correspondence of second splint 3, and when first splint 2 and second splint 3 pressed from both sides tight test block, the corner of test block can stretch out from first breach 4 and second breach 5. Corner intensity detection mechanism is installed at the top of workstation 1, and corner intensity detection mechanism can detect the partial corner intensity that the test block stretches out.

Referring to fig. 2, one end of the first clamping plate 2 is provided as a hinged end 6, and the other end of the first clamping plate 2 is provided as a connecting end 7. The connecting end 7 of the first clamping plate 2 is hinged with one end of the second clamping plate 3, and the connecting end 7 of the first clamping plate 2 is detachably connected with the other end of the second clamping plate 3 through a connecting piece.

Specifically, the connecting piece is an inserted link 8. The connecting end 7 of first splint 2 is fixed with connecting block 9, and the top of connecting block 9 is seted up flutedly 10, and connecting block 9 runs through to the opposite side lateral wall along one side lateral wall of horizontal direction and has seted up jack 11, and jack 11 is linked together with recess 10. The inserted bar 8 is in inserting fit with the inserting hole 11, the end part of the second clamping plate 3, which is far away from the hinged end 6 of the first clamping plate 2, is fixed with an inserted block 12, the inserted block 12 is in inserting fit with the groove 10, and two side walls of the inserted block 12 in the horizontal direction are provided with connecting holes 13 in a penetrating mode. When the insert 12 is in plug-fit with the recess 10, the connection hole 13 is aligned with and communicates with the insertion hole 11. So that a tester can pass the insertion rod 8 through the insertion hole 11 and the connecting hole 13 to fix the insertion block 12 in the groove 10, thereby realizing the fixed connection of the first clamping plate 2 and the second clamping plate 3.

Referring to fig. 2, in order to improve the stability of the insertion rod 8 and the insertion hole 11, a limiting portion 81 is disposed at one end of the insertion rod 8, the limiting portion 81 and the insertion rod 8 are integrally disposed, and the width of the limiting portion 81 is greater than the width of the insertion hole 11. One end of the inserted bar 8, which is far away from the limiting part 81, is provided with a limiting rod 14, and a hole for the limiting rod 14 to pass through is formed in the side wall of the inserted bar 8. When the inserted bar 8 is inserted into the insertion hole 11, one end of the inserted bar 8, which is far away from the limiting portion 81, can penetrate through the insertion hole 11 and extend out of the side wall of the connecting block 9, and at the moment, the limiting bar 14 is inserted into the hole, so that the inserted bar 8 can be limited to be separated from the insertion hole 11, and the connection stability of the inserted bar 8 and the insertion hole 11 is further improved.

Referring to fig. 2, in order to improve the stability of the first clamping plate 2 and the second clamping plate 3 for clamping the test block, a first positioning groove 15 is formed in the top of the first clamping plate 2, and the test block can be clamped with the first positioning groove 15. Second constant head tank 16 has been seted up towards one side correspondence of first splint 2 to second splint 3, and the test block can with second constant head tank 16 joint. During the test, earlier with the bottom and the 15 joint of first constant head tank of test block, then rotate the lid and close second splint 3 for the top and the 16 joints of second constant head tank of test block, thereby can effectual improvement to the location accuracy of test block.

Specifically, the groove angle of the first positioning groove 15 and the groove angle of the second positioning groove 16 are both provided with anti-collision pads, and the anti-collision strips are made of sponge materials. The setting of crashproof pad can play the guard action to the edge of test block.

Referring to fig. 1 and 3, the corner strength detecting mechanism includes a base 17 vertically installed on the top surface of the worktable 1, and the inside of the base 17 is hollow. One side of the base 17 is provided with a pressing pin 18, and the pressing pin 18 is positioned right above the first notch 4 of the first clamping plate 2. A driving mechanism for driving the pressing pin 18 to move up and down in the vertical direction is installed inside the base 17. A contact pressure tester 19 is installed on the top of the base 17, and a contact of the contact pressure tester 19 is fixed on the bottom of the pressing pin 18. During the test, start actuating mechanism for actuating mechanism drives and exerts pressure needle 18 and move down along vertical direction and broken test block's corner, can read the test value through contact pressure tester 19 this moment.

Referring to fig. 1 and 4, the driving mechanism includes a rack 20, a motor 21, and a gear reduction set, a sliding groove 24 is opened in one side of the base 17 facing the first clamping plate 2, and a length direction of the sliding groove 24 is along a vertical direction. The rack 20 is slidably engaged with the slide groove 24. The lateral wall that the tank bottom of spout 24 runs through base 17 has seted up spread groove 27, and rack 20 is the connecting plate that the level set up towards first splint 2 one side fixed connection, and the one end and the spread groove 27 cooperation of sliding of connecting plate, the direction of sliding is the same with the moving direction of rack 20, and the other end of connecting plate stretches out outside the lateral wall of base 17, and the bottom of connecting plate and the top fixed connection of needle 18 of exerting pressure.

Specifically, in order to improve the stability of the sliding fit between the rack 20 and the sliding groove 24, sliding strips 25 are fixedly arranged at two ends of the rack 20, limiting grooves 26 which are matched with the sliding strips 25 in a sliding manner are correspondingly formed in two side groove walls of the sliding groove 24, and the length direction of the limiting grooves 26 is the same as the moving direction of the rack 20.

Referring to fig. 3, a motor 21 is fixedly installed inside the base 17, and power is transmitted between the motor 21 and the rack 20 through a reduction gear set. The arrangement of the reduction gear set can increase the output torque of the motor 21, so that the pressing needle 18 can be facilitated to break the corners of the test block.

Referring to fig. 3, the reduction gear set includes a driving gear 22 and a driven gear 23, the radius of the driving gear 22 is smaller than that of the driven gear 23, the driving gear 22 is coaxially and fixedly connected with the output shaft of the motor 21, and the driven gear 23 is rotatably installed on a side wall of the base 17 adjacent to the sliding groove 24. The pinion gear 22 is intermeshed with the driven gear 23, and the driven gear 23 is intermeshed with the rack 20. When the motor 21 is started, the output shaft of the motor 21 drives the driving gear 22 and drives the driven gear 23 to rotate, so that the driven gear 23 can drive the rack 20 to slide back and forth along the length direction of the sliding groove 24, and further the rack 20 can drive the pressing needle 18 to slide up and down along the vertical direction through the connecting rod 28.

The implementation principle of the inductance product corner strength detection device in the embodiment of the application is as follows:

during measurement, a test block is clamped in the first positioning groove 15, the second clamping plate 3 is rotated, the test block is clamped in the second positioning groove 16, the insertion block 12 is in insertion fit with the groove 10 at the moment, the insertion hole 11 is aligned with and communicated with the connecting hole 13, the insertion rod 8 penetrates through the insertion hole 11 and the limiting rod 14 penetrates through an orifice, the first clamping plate 2 and the second clamping plate 3 are fixed, the motor 21 is started, the motor 21 drives the rack 20 to slide downwards through the reduction gear set, the rack 20 drives the pressing pin 18 to move downwards through the connecting rod 28 and crush corners of the test block, then the test value of the contact pressure tester 19 is recorded, the test value is compared with a normal value, and the difference between the strength of the test block and a normal product is judged.

In a second aspect, an embodiment of the present application further discloses a method for detecting corner strength of an inductance product, including the following steps:

s1, clamping the test block with the first positioning groove 15 of the first clamp plate 2, then rotating to cover the second clamp plate 3, so that the top of the test block is clamped with the second positioning groove 16, clamping the test block, and enabling the insertion block 12 to be in insertion fit with the groove 10, and preliminarily fixing the first clamp plate 2 and the second clamp plate 3;

s2, enabling the inserted bar 8 to penetrate through the insertion hole 11 and the connecting hole 13, enabling one end, far away from the limiting part 81, of the inserted bar 8 to penetrate through the side wall of the connecting block 9, and then inserting the limiting rod 14 and the hole to fix the inserted bar 8, so that the first clamping plate 2 and the second clamping plate 3 are fixedly connected;

s3, starting the motor 21, wherein an output shaft of the motor 21 drives the driving gear 22 and drives the driven gear 23 to rotate, so that the driven gear 23 can drive the rack 20 to slide downwards along the length direction of the sliding groove 24, the rack 20 can drive the pressing needle 18 to slide downwards along the vertical direction through the connecting rod 28, and corners of a test block are crushed;

and S4, recording the pressure value of the contact pressure tester 19, comparing the test value with a normal value, and judging the difference between the strength of the test block and a normal product.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an inductance product corner intensity detection device which characterized in that: comprises a workbench (1) which is horizontally arranged, a first clamping plate (2) is fixedly arranged at the top of the workbench (1), a second clamping plate (3) is arranged above the first clamping plate (2), the first clamping plate (2) is detachably connected with the second clamping plate (3), the first clamping plate (2) and the second clamping plate (3) are used for clamping a test block, one side of the first clamping plate (2) is provided with a first notch (4), a second gap (5) is correspondingly arranged on one side of the second splint (3), when the first clamping plate (2) and the second clamping plate (3) are used for cooperatively clamping a test block, the first notch (4) and the second notch (5) are matched for extending out the corner of the test block, corner intensity detection mechanism is installed at the top of workstation (1), corner intensity detection mechanism is used for detecting the partial corner intensity that the test block stretches out.

2. The inductance product corner strength detecting device according to claim 1, characterized in that: first constant head tank (15) have been seted up at the top of first splint (2), second constant head tank (16) have been seted up to the bottom of second splint (3), first constant head tank (15) with second constant head tank (16) mutually support and are used for the holding test block.

3. The inductance product corner strength detecting device according to claim 2, characterized in that: and the groove angle of the first positioning groove (15) is provided with an anti-collision pad.

4. The inductance product corner strength detecting device according to claim 1, characterized in that: the one end of first splint (2) sets up to hinged end (6), the other end of first splint (2) sets up to link (7), the link (7) of first splint (2) with second splint (3) are articulated, the link (7) of first splint (2) with second splint (3) can dismantle the connection through a connecting piece.

5. The inductance product corner strength detecting device according to claim 4, characterized in that: the connecting piece is an inserting rod (8), a connecting block (9) is fixed on the connecting end (7) of the first clamping plate (2), a groove (10) is formed in one side, facing the second clamping plate (3), of the connecting block (9), an inserting hole (11) is formed in one side wall of the connecting block (9) in a penetrating mode and the other side wall of the connecting block, the inserting hole (11) is communicated with the groove (10), and the inserting rod (8) is matched with the inserting hole (11) in an inserting mode; one end of the second clamping plate (3) is correspondingly fixed with an insertion block (12), the insertion block (12) is matched with the groove (10) in an inserting mode, connecting holes (13) matched with the insertion rods (8) in an inserting mode are formed in the two sides of the insertion block (12) in a penetrating mode, when the insertion block (12) is matched with the groove (10) in an inserting mode, the connecting holes (13) are aligned to the insertion holes (11) and are communicated with the insertion holes.

6. The inductance product corner strength detecting device according to claim 5, characterized in that: the one end of inserted bar (8) is provided with spacing portion (81), the width of spacing portion (81) is greater than the width of jack (11), the one end that spacing portion (81) were kept away from in inserted bar (8) can be dismantled and be connected with and be used for the restriction inserted bar (8) break away from gag lever post (14) of jack (11).

7. The inductance product corner strength detecting device according to claim 1, characterized in that: corner intensity detection mechanism is including being vertical installation base (17) of workstation (1) top surface, one side of base (17) slides and is provided with application of pressure needle (18), application of pressure needle (18) are vertical setting, just application of pressure needle (18) are located the corner that is used for broken test block directly over second splint (3), install actuating mechanism in base (17), actuating mechanism is used for the drive application of pressure needle (18) are along vertical direction and are the lift removal, contact pressure tester (19) are installed at the top of base (17), just the contact of contact pressure tester (19) is fixed the bottom of application of pressure needle (18).

8. The inductance product corner strength detecting device according to claim 7, characterized in that: the driving mechanism comprises a rack (20), the rack (20) is vertically slidably mounted in the base (17), the rack (20) and the pressing needle (18) are fixedly connected through a connecting rod (28), and a driving assembly used for driving the rack (20) to slide is mounted in the base (17).

9. The inductance product corner strength detecting device according to claim 8, wherein: the driving assembly comprises a motor (21) installed in the base (17), and power is transmitted between the motor (21) and the rack (20) through a reduction gear set.

10. An inductance product corner strength detection method is applied to the inductance product corner strength detection device of any one of claims 1-9, and is characterized by comprising the following steps:

s1, clamping the test block with a first positioning groove (15) of a first clamping plate (2), then rotating to cover a second clamping plate (3), clamping the test block by matching the first clamping plate (2) with the second clamping plate (3), and enabling an insertion block (12) to be in insertion fit with a groove (10);

s2, the inserted bar (8) penetrates through the insertion hole (11) and the connecting hole (13), then the limiting rod (14) is connected with the inserted bar (8) to limit the inserted bar (8) to be separated from the insertion hole (11), and the first clamping plate (2) and the second clamping plate (3) are fixed;

s3, starting a motor (21), wherein the motor (21) transmits power to a rack (20) through a reduction gear set, and the rack (20) drives a pressing pin to move downwards through a connecting rod (28) until the pressing pin (18) breaks the corners of the test block;

and S4, recording the pressure value of the contact pressure tester (19), comparing the test value with a normal value, and judging the difference between the strength of the test block and a normal product.