CN218937972U - Testing jig for cutting knife pin of anastomat - Google Patents
Testing jig for cutting knife pin of anastomat Download PDFInfo
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- CN218937972U CN218937972U CN202122056256.2U CN202122056256U CN218937972U CN 218937972 U CN218937972 U CN 218937972U CN 202122056256 U CN202122056256 U CN 202122056256U CN 218937972 U CN218937972 U CN 218937972U
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Abstract
The utility model relates to the field of performance test of medical instruments, in particular to a test fixture for a cutting knife pin of an anastomat. The cutting knife pin is arranged on a testing platform of the tensile machine and used for placing the cutting knife pin, and comprises a strength testing tool and/or a toughness testing tool which are positioned on the testing platform; the tensile machine is suitable for respectively pressing a strength testing tool or a toughness testing tool to detect the strength or toughness of the cutting knife pin, and the strength testing tool comprises a strength testing base positioned on a testing platform, at least one semicircular groove positioned on the surface of the strength testing base and a gap vertically arranged in the middle of the groove; an insert located at the slit; the toughness testing tool comprises a toughness testing base arranged on a testing platform, at least one cylindrical groove arranged on the surface of the toughness testing base, and a toughness testing pressing block arranged above the toughness testing base. According to the utility model, the performance data of the cutting knife pin is tested, the strength and toughness of the cutting knife pin are effectively controlled, and the stability is improved.
Description
Technical Field
The utility model relates to the field of performance test of medical instruments, in particular to a test fixture for a cutting knife pin of an anastomat.
Background
The cutter pin is required to be tested for strength and toughness after production is completed, the stress condition and stress concentration of the cutter pin in the use process cannot be simulated by the existing performance test fixture without the corresponding cutter pin, quantitative performance data of the cutter pin cannot be obtained through corresponding equipment, and therefore the yield of the produced anastomat pin is low and the stability is poor.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: because the performance test fixture of the corresponding cutting knife pin does not exist, the stress condition and the stress concentration position of the cutting knife pin in the using process cannot be simulated, and quantitative performance data of the cutting pin cannot be obtained, based on the performance test fixture, the strength and the toughness of the cutting knife pin can be tested.
The technical scheme adopted for solving the technical problems is as follows: the utility model discloses a testing jig for a cutting knife pin of an anastomat, which is arranged on a testing platform of a tension machine and is used for placing the cutting knife pin, wherein the cutting knife pin is positioned on a strength testing tool and/or a toughness testing tool on the testing platform; the tensile machine is suitable for respectively pressing a strength testing tool or a toughness testing tool to detect the strength or toughness of the cutting knife pin.
Further, the strength test fixture comprises a strength test base arranged on the test platform, at least one semicircular groove arranged on the surface of the strength test base, and a gap vertically arranged in the middle of the groove; an insert located at the slit; the inserting piece is provided with a round hole which is suitable for the horizontal passing of the cutting knife pin; the pulling machine is suitable for pushing down the inserting piece to move along the gap so that the bottom of the cutting knife pin is abutted against the bottom of the semicircular groove and used for detecting the strength of the cutting knife pin.
Further, the depth of the gap is larger than that of the semicircular groove, so that the cutting tool pin is suspended at the bottom of the gap.
Further, the semicircular groove is a semicircular groove matched with the cutting knife pin; the grooves are distributed in a plurality of mode and are distributed at equal intervals along the length direction of the gap.
Further, the toughness testing tool comprises a toughness testing base arranged on the testing platform, at least one cylindrical groove arranged on the surface of the toughness testing base, and a toughness testing pressing block arranged above the toughness testing base; the arc-shaped groove is formed in the pressing block, so that the top of the cutting knife pin is abutted against the arc-shaped groove in the pressing block, and the arc-shaped groove is used for detecting the toughness of the cutting knife pin.
Further, the cylindrical groove is a cylindrical groove matched with the cutting knife pin; the cylindrical grooves are uniformly distributed on the surface of the toughness testing base.
Further, the cylindrical recess has a depth less than the length of the cutter pin such that the cutter pin top is on the ductile base of the cutter pin.
Further, the tensile machine comprises the test platform, a moving platform arranged above the test platform and a pressure head arranged below the moving platform; the moving platform is suitable for driving the pressure head to move to the position above the strength test tool or the toughness test tool.
Further, the tension machine further comprises a pressure sensor positioned between the pressure head and the moving platform.
The beneficial effects of the utility model are as follows: according to the testing fixture for the cutting knife pin of the anastomat, the strength testing fixture for the cutting knife pin is pressed downwards through the tension machine, and the strength performance of the cutting knife pin is tested through the pressure sensor. The cutter pin is vertically placed in the toughness testing base and covered with the toughness testing pressing block, the tensile machine downwards presses the toughness testing pressing block, and the toughness performance of the cutter pin is tested through the pressure sensor, so that the performance data of the cutter pin are quantized, and the stability and the qualification rate of products are improved.
Drawings
The utility model is further described below with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a structure of a test fixture for testing the strength of a cutting blade pin of an anastomat of the present utility model;
FIG. 2 is a schematic structural diagram of the strength testing tool in FIG. 1;
FIG. 3 is a side view of the strength test fixture of FIG. 2;
FIG. 4 is a schematic diagram of the structure of the toughness test of the testing fixture for the cutter pin of the anastomat of the present utility model;
FIG. 5 is a schematic structural view of the toughness testing tool shown in FIG. 4;
fig. 6 is a side view of the toughness testing tool of fig. 5.
The names and the numbers of the parts in the figure are respectively as follows: the tensile machine 1, the moving platform 11, the pressure sensor 12, the pressure head 13, the test platform 14, the cutting tool pin 2, the strength test fixture 3, the strength test base 31, the semicircular groove 32, the gap 33, the strength test insert 34, the round hole 35, the toughness test fixture 4, the toughness test base 41, the cylindrical groove 42, the toughness test press block 43 and the arc-shaped groove 44.
Detailed Description
The present utility model will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the utility model only by way of illustration, and therefore it shows only the constitution related to the utility model.
As shown in fig. 1-6, the testing fixture for the cutting knife pin of the anastomat is arranged on a testing platform 14 of a tension machine 1 and is used for placing a cutting knife pin 2, and the cutting knife pin is positioned on a strength testing fixture 3 and/or a toughness testing fixture 4 on the testing platform 14; the tension machine 1 is suitable for respectively pressing a compression strength test tool 3 or a toughness test tool 4 so as to detect the strength or toughness of the cutter pin 2.
In this embodiment, the tensile machine 1 includes a testing platform 14 installed at the bottom of the tensile machine 1 and used for horizontally placing the strength testing tool 3 and/or the toughness testing tool 4, a moving platform 11 installed above the testing platform 14 and used for driving the pressure head 13 of the tensile machine 1 to move up and down, left and right, a cylinder pressure head 13 installed below the moving platform, and a pressure sensor 12 installed between the pressure head 13 and the moving platform 11 and used for testing the strength and toughness of the cutting knife pin 2; the movable platform 11 is suitable for driving the pressure head 13 to move to the position above the strength test tool 3 or the toughness test tool 4; the pressure sensor 12 presses the strength testing insert 34 downwards through the pressing head 13 to test the strength data of the cutter pin 2 or the pressure sensor 12 presses the toughness testing pressing block 43 downwards through the pressing head 13 to test the toughness data of the cutter pin 2.
As shown in fig. 1 to 3, a strength testing tool 3 is placed on a testing platform 14 of the tensile machine 1 and is used for testing the strength of the cutter pin 2. The strength testing tool 3 comprises a strength testing base 31, and the strength testing base 31 is located above the testing platform 14 and horizontally placed.
As shown in fig. 2, the main body of the strength testing base 31 is a cuboid, and a plurality of semicircular grooves 32 with the same width as the cuboid and gaps 33 crossing all the semicircular grooves 32 and located at the central position of the upper surface of the cuboid are formed in the upper surface of the cuboid, so as to place the strength testing insert 34 and the cutting knife pin 2 to be tested. At least one semicircular groove 32 on the surface of the strength test base 31 is used for horizontally placing the cutter pin 2 in the semicircular groove 32. Optionally, the number of the semicircular grooves 32 is plural, and the width of the semicircular groove 32 is matched with the width of the cutter pin 2, the depth of the semicircular groove 32 is equal to the radius of the cutter pin, and the length of the semicircular groove 32 is equal to the width of the strength test base 31, so that the cutter pin 2 can be placed in the semicircular groove 32 horizontally.
In this embodiment, the surface of the strength testing base 31 is further provided with a slit 33, and the slit 33 is vertically disposed in the centers of the semicircular grooves 32, and optionally, the slit 33 is a cuboid with a narrower width, the width of the slit 33 is greater than the thickness of the strength testing insert 34, and the height of the slit 33 is greater than the side length of the strength testing insert 34, so that the strength testing insert 34 is conveniently vertically inserted into the slit 33 and the strength testing insert 34 is suspended in the slit 33, and the strength value of the cutting knife pin 2 is not affected by the testing fixture in the testing process.
As shown in fig. 2-3, the strength testing fixture 3 further includes a strength testing insert 34, where the strength testing insert 34 is vertically disposed in the gap 33, so as to test the strength of the cutter pin 2. Optionally, the strength test insert 34 is a square rounded steel sheet, avoiding scratches during the installation operation, and a circular hole 35 is formed in the strength test insert 34. Optionally, the diameter of the circular hole 35 matches the diameter of the cutter pin 2 for placement of the cutter pin 2 into the circular hole 35 of the strength test insert 34.
In this embodiment, when testing the strength of the cutter pin 2, the left and right lengths of the cutter pin 2 are uniformly inserted into the round holes 35 of the strength test insert 34, then the strength test insert 34 with the cutter pin 2 mounted thereon is placed in the slit 33 and the cutter pin 2 is horizontally placed in the semicircular groove 32 on the surface of the strength test base 31, the moving platform 11 of the tension machine 1 moves to enable the pressure head 13 of the tension machine 1 to be partially aligned with the strength test insert 34 to be pressed down, and the critical value detected by the pressure sensor 12 is read.
As shown in fig. 4 to 6, a toughness testing tool 4 is placed on a testing platform 14 of the tensile machine 1 and used for testing toughness of the cutter pin 2. The toughness testing tool 4 comprises a toughness testing base 41, wherein the toughness testing base 41 is positioned above the testing platform 14 and horizontally placed, the main body of the toughness testing base 41 is a large right-angle U-shaped groove, and the length and width of the right-angle U-shaped groove are matched with those of the toughness testing pressing block 43 and are used for placing the toughness testing pressing block 43.
As shown in fig. 4, at least one cylindrical recess 42 on the surface of the toughness test base 41 is used to vertically place the cutter pin 2 in the cylindrical recess 42. Optionally, the number of the cylindrical grooves 42 is plural, the diameter of the cylindrical grooves 42 is matched with that of the cutter pin 2, the depth of the cylindrical grooves 42 is smaller than the length of the cutter pin 2, so that the bottom position of the cutter pin 2 contacts the bottom of the cylindrical grooves 42 and the top of the cutter pin 2 is on the cutter pin toughness base 41.
As shown in fig. 5-6, the toughness testing tool 4 further includes a strength testing insert 34 and a toughness testing pressing block 43, where the toughness testing pressing block 43 is placed in a right-angle U-shaped groove of the toughness testing base 41, so as to test toughness of the cutter pin 2. Optionally, the toughness test pressing block 43 is formed by stacking two cuboids, wherein the bottom is in shape of a rounded cuboid and matched with the shape of the right-angle U-shaped groove of the toughness test base 41, the length of one side of the top cuboid is slightly longer than the length and smaller in height of the right-angle U-shaped groove of the toughness test base 41, and the top cuboid is clamped on a notch of one side of the right-angle U-shaped groove of the toughness test base 41, so that the cutting knife pin 2 can be taken out after the toughness of the cutting knife pin 2 is tested conveniently.
As shown in fig. 6, the lower surface of the toughness testing press block 43 is provided with at least one arc-shaped groove 44, one surface of the arc-shaped groove is an arc, the other surface of the arc-shaped groove is a vertical plane, the arc-shaped groove 44 corresponds to the cylindrical groove 42 on the toughness testing base 41 one by one, and is used for abutting against the top position of the cutting knife pin 2, so that the cutting knife pin 2 is prevented from moving in the testing process.
In this embodiment, when the toughness of the cutter pin 2 is tested, the cutter pin 2 is vertically inserted into the cylindrical groove 42 on the toughness testing base 41, then the toughness testing press block 43 is placed on the toughness testing base 41, at this time, the top position of the cutter pin 2 is abutted against the arc groove 44, and the moving platform 11 of the tensile machine 1 moves to enable the pressure head 13 of the tensile machine 1 to press down the toughness testing press block 43, so as to read out the critical value detected by the pressure sensor 12.
In summary, the testing fixture for the cutting knife pin of the anastomat is arranged on the testing platform of the tension machine and is used for placing the strength testing fixture and/or the toughness testing fixture of the cutting knife pin on the testing platform; the tensile machine is suitable for respectively pressing a strength testing tool or a toughness testing tool to detect the strength or toughness of the cutting knife pin. According to the utility model, the performance data of the cutting knife pin is tested, the strength and toughness of the cutting knife pin are effectively controlled, and the stability is improved.
While the foregoing is directed to the preferred embodiment of the present utility model, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (9)
1. The testing jig for the cutting knife pin of the anastomat is arranged on a testing platform of a tension machine and is used for placing the cutting knife pin and is characterized by comprising a strength testing tool and/or a toughness testing tool which are positioned on the testing platform; the tensile machine is suitable for respectively pressing a strength testing tool or a toughness testing tool to detect the strength or toughness of the cutting knife pin, and the strength testing tool comprises a strength testing base positioned on a testing platform, at least one semicircular groove positioned on the surface of the strength testing base and a gap vertically arranged in the middle of the groove; an insert located at the slit; the toughness testing tool comprises a toughness testing base arranged on a testing platform, at least one cylindrical groove arranged on the surface of the toughness testing base, and a toughness testing pressing block arranged above the toughness testing base.
2. The test fixture for the cutting knife pin of the anastomat according to claim 1, wherein the inserting sheet is provided with a round hole which is suitable for the horizontal passing of the cutting knife pin; the pulling machine is suitable for pushing down the inserting piece to move along the gap so that the bottom of the cutting knife pin is abutted against the bottom of the semicircular groove and used for detecting the strength of the cutting knife pin.
3. The test fixture for a cutter pin of an anastomat according to claim 2, wherein the depth of the slit is greater than the semicircular groove so that the cutter pin is suspended at the bottom of the slit.
4. The test fixture for a cutter pin of an anastomat according to claim 2, wherein the semicircular groove is a semicircular groove matched with the cutter pin; the semicircular grooves are distributed in a plurality of mode and are distributed at equal intervals along the length direction of the gap.
5. The test fixture for the cutter pin of the anastomat according to claim 1, wherein the pressing block is provided with an arc-shaped groove, so that the top of the cutter pin is abutted against the arc-shaped groove on the pressing block for detecting the toughness of the cutter pin.
6. The test fixture for a cutter pin of a stapler of claim 5, wherein the cylindrical recess is a cylindrical recess that mates with the cutter pin; the cylindrical grooves are uniformly distributed on the surface of the toughness testing base.
7. The test fixture for a cutter pin of a stapler of claim 6, wherein the cylindrical recess has a depth less than a length of the cutter pin such that a top of the cutter pin is on a malleable base of the cutter pin.
8. The testing jig for a cutting knife pin of an anastomat according to claim 1, wherein the tensile machine comprises the testing platform, a moving platform positioned above the testing platform and a pressure head positioned below the moving platform; the moving platform is suitable for driving the pressure head to move to the position above the strength test tool or the toughness test tool.
9. The test fixture for a cutting knife pin of a stapler of claim 1, wherein the pulling machine further comprises a pressure sensor located between the ram and the moving platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122056256.2U CN218937972U (en) | 2021-08-27 | 2021-08-27 | Testing jig for cutting knife pin of anastomat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122056256.2U CN218937972U (en) | 2021-08-27 | 2021-08-27 | Testing jig for cutting knife pin of anastomat |
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| Publication Number | Publication Date |
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| CN218937972U true CN218937972U (en) | 2023-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122056256.2U Active CN218937972U (en) | 2021-08-27 | 2021-08-27 | Testing jig for cutting knife pin of anastomat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607553A (en) * | 2021-08-27 | 2021-11-05 | 江苏博朗森思医疗器械有限公司 | Testing jig for cutting knife pin of anastomat |
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2021
- 2021-08-27 CN CN202122056256.2U patent/CN218937972U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607553A (en) * | 2021-08-27 | 2021-11-05 | 江苏博朗森思医疗器械有限公司 | Testing jig for cutting knife pin of anastomat |
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