Stent inference force test positioning jig

Abstract

The utility model discloses a kind of support extrapolation force test positioning fixture, it is related to jig technical field, including test seat, multiple groups of avoidance grooves are opened in the test seat, the width of multiple groups of the avoidance grooves is different, the inner wall of the avoidance groove is opened with multiple equidistantly arranged placement grooves on both sides, the bottom of the test seat is provided with a steering mechanism, and still multiple groups of clamping mechanisms are installed on the test seat.The utility model can place support into corresponding placement groove by opening avoidance groove and placement groove of different width, placement groove can limit support, and then extrapolation force test is carried out to support using push gauge, avoidance groove can keep support in suspension state during testing, avoid the needle of push gauge directly contact the metal part of jig, ensure the accuracy of test result, realize the extrapolation force test to different specifications of support, expand the application range of equipment.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a positioning fixture for testing the inference force of a support. Background Technology

[0002] In existing production environments, the testing of stent fracture force has always been a critical issue. Due to the diverse range of stent models on the market, conventional positioning fixtures often only meet the testing requirements of a single size, making it impossible to conduct effective fracture force tests on stents of different sizes. Such single-size fixtures not only have limitations in use, but also increase production costs and maintenance burdens due to frequent fixture replacements. Especially when stents are being supplied, fluctuations in product quality pose a serious challenge to the reliability and quality stability of the products, and may even lead to the scrapping of finished products, resulting in huge economic losses. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a support inference force testing and positioning fixture, which solves the technical problems mentioned in the background art.

[0004] To solve the above technical problems, the present invention provides the following technical solution: a bracket inference force testing positioning fixture, including a test seat, the test seat having multiple sets of clearance grooves with different widths, multiple equally spaced placement grooves on both sides of the inner wall of the clearance grooves, a turning mechanism at the bottom of the test seat, and multiple clamping mechanisms installed on the test seat.

[0005] Furthermore, the top of the test seat is provided with specification markings corresponding to the clearance groove.

[0006] Furthermore, the steering mechanism includes a connector fixedly installed at the bottom of the test seat, a rotating shaft fixedly installed inside the connector, a retainer rotatably connected to the rotating shaft, a limit member provided on one side of the retainer, and a base rotatably connected to the bottom of the retainer.

[0007] Furthermore, the limiting component includes a collar fixedly sleeved on the outside of the rotating shaft, a fixing plate fixedly installed on the side of the card seat, a slide rod slidably disposed inside the fixing plate, a limiting rod fixedly connected to one end of the slide rod, and a connecting spring sleeved on the outside of the slide rod, and multiple limiting grooves for the limiting rod to be inserted are opened on the edge of the collar.

[0008] Furthermore, a worm gear is rotatably mounted on one side of the top of the base, and a worm wheel that meshes with the worm gear is fixedly sleeved on the outside of the card holder.

[0009] Furthermore, the clamping mechanism includes two lead screws rotatably mounted on the top of the test seat. The two lead screws are respectively disposed on both sides of the clearance groove. The lead screws are externally threaded with multiple pairs of L-shaped clamps, which are slidably disposed in multiple placement grooves.

[0010] Furthermore, the lead screw is provided with multiple pairs of threads with opposite directions on its exterior, and multiple pairs of clamping plates are respectively provided on the multiple pairs of threads.

[0011] By employing the above technical solution, this utility model provides a positioning fixture for testing the inference force of a support, which has at least the following beneficial effects: 1. This utility model, by opening clearance grooves and placement grooves of different widths, allows the bracket to be placed into the corresponding placement groove. The placement groove can limit the bracket, and then the thrust gauge can be used to test the thrust force of the bracket. The clearance groove can keep the bracket suspended during the test, avoiding direct contact between the thrust gauge needle and the metal part of the fixture, ensuring the accuracy of the test results. It can realize the thrust force test of brackets of different specifications, expanding the applicability of the equipment.

[0012] 2. By setting up a steering mechanism and a clamping mechanism, this utility model can not only test the inference force of the support in a horizontal state, but also test the inference force of the support in an inclined state, ensuring the comprehensiveness and reliability of the test results. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the test seat structure of this utility model; Figure 2 This is a side view of the test stand of this utility model; Figure 3 This is one of the schematic diagrams of the steering mechanism structure of this utility model; Figure 4 This is the second schematic diagram of the steering mechanism structure of this utility model; Figure 5 This is a schematic diagram of the clamping mechanism of this utility model.

[0014] In the diagram: 1. Test seat; 2. Clearance groove; 201. Placement groove; 3. Steering mechanism; 31. Connector; 32. Rotating shaft; 33. Card seat; 34. Limiting component; 341. Collar; 342. Fixing plate; 343. Slide rod; 344. Limiting rod; 345. Connecting spring; 346. Limiting groove; 35. Base; 36. Worm gear; 37. Worm wheel; 4. Clamping mechanism; 41. Lead screw; 42. Clamping plate; 5. Specification markings. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Conventional positioning fixtures can only meet the testing requirements of a single size, making it impossible to conduct effective force tests on brackets of different sizes. Such single-size fixtures not only have limitations in use, but also increase production costs and maintenance burdens due to frequent fixture replacements.

[0017] To address the defects observed in the aforementioned fixtures during testing, please refer to [link / reference needed]. Figures 1-5 This utility model provides a positioning fixture for testing the thrust of a support, which can be applied to testing supports of different specifications. The fixture uses a test base 1 as its foundation. The test base 1 has multiple sets of clearance grooves 2 with varying widths. Multiple equally spaced placement slots 201 are provided on both sides of the inner wall of each clearance groove 2. The top of the test base 1 has specification markings 5 ​​corresponding to the clearance grooves 2. The support is placed in the placement slot 201. Different widths of placement slots 201 can accommodate supports of different specifications and limit their movement. When a support is received, the specification markings 5 ​​are observed, and the support is placed into the corresponding placement slot 201. The placement slot 201 limits the movement of the support, and a thrust gauge is used to test the thrust of the support. The clearance grooves 2 allow the support to remain suspended during testing, preventing the thrust gauge needle from directly contacting the metal parts of the fixture, thus ensuring the accuracy of the test results.

[0018] Example 2 Since the bracket is not perfectly horizontally installed in the end product, when performing inverse force testing on the bracket, it is necessary to perform inverse force testing not only in a horizontal position but also in a tilted position. For ease of tilt testing, refer to... Figures 3-5As shown, a steering mechanism 3 is provided at the bottom of the test base 1. The steering mechanism 3 includes a connector 31 fixedly installed at the bottom of the test base 1. A rotating shaft 32 is fixedly installed inside the connector 31. A retainer 33 is rotatably connected to the rotating shaft 32. A limit member 34 is provided on one side of the retainer 33, and a base 35 is rotatably connected to the bottom of the retainer 33. The limit member 34 includes a collar 341 fixedly sleeved outside the rotating shaft 32. A fixing plate 342 is fixedly installed on the side of the retainer 33. A slide rod 343 is slidably arranged inside the fixing plate 342. One end of the slide rod 343 is fixedly connected to the limit rod 344, and a connecting spring 345 is sleeved on the outside of the slide rod 343. The two ends of the connecting spring 345 are fixedly connected to the limiting rod 344 and the fixing plate 342 respectively. The edge of the collar 341 is provided with multiple limiting grooves 346 for the limiting rod 344 to be inserted. During the tilt test, the sliding rod 343 is pulled to drive the limiting rod 344 to slide out of the limiting groove 346. At this time, the connecting spring 345 deforms. After rotating the test seat 1 to the specified angle, the sliding rod 343 is released. The limiting rod 344 can enter the corresponding limiting groove 346 through the elastic force of the connecting spring 345, restricting the rotation of the rotating shaft 32. Thus, the test seat 1 and its bracket can be fixed at the specified tilt angle, which is convenient for the inference force test in the tilt state.

[0019] Reference Figure 3 As shown, a worm gear 36 is rotatably mounted on one side of the top of the base 35, and a worm wheel 37 that meshes with the worm gear 36 is fixedly sleeved on the outside of the card holder 33. Rotating the worm gear 36 can drive the worm wheel 37 to rotate, and rotating the worm wheel 37 can drive the card holder 33 to rotate. This allows the orientation of the test seat 1 in the horizontal direction to be adjusted, making it convenient for staff to conduct tests from different directions.

[0020] Since both the test base 1 and the support are tilted during the inference force test under tilted conditions, the support may fall out of the placement slot 201. To solve this technical problem, multiple clamping mechanisms 4 are installed on the test base 1. The clamping mechanism 4 includes two lead screws 41 rotatably mounted on the top of the test base 1. Each end of the lead screw 41 is equipped with a handle. The two lead screws 41 are respectively set on both sides of the clearance slot 2. Multiple pairs of L-shaped clamping plates 42 are connected to the external threads of the lead screws 41. The multiple pairs of clamping plates 42 are slidably set in multiple placement slots 201. Multiple pairs of threads with opposite directions are provided on the external threads of the lead screws 41. The multiple pairs of clamping plates 42 are respectively set on the multiple pairs of threads. Rotating the lead screws 41 can drive the multiple pairs of clamping plates 42 to slide relative to each other, thereby clamping and fixing the support, preventing the support from falling, enhancing the stability of the support during testing, and ensuring the smooth progress of the test.

[0021] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for testing the inference force of a support, comprising a test base (1), characterized in that: The test seat (1) has multiple sets of clearance grooves (2), the width of the multiple sets of clearance grooves (2) is different, and multiple equally spaced placement grooves (201) are provided on both sides of the inner wall of the clearance groove (2). The bottom of the test seat (1) is provided with a steering mechanism (3), and multiple sets of clamping mechanisms (4) are also installed on the test seat (1).

2. The stent inferred force test positioning fixture of claim 1, wherein: The top of the test seat (1) is provided with a specification mark (5) corresponding to the clearance groove (2).

3. The positioning fixture for testing the inference force of the stent according to claim 1, characterized in that: The steering mechanism (3) includes a connector (31) fixedly installed at the bottom of the test seat (1). A rotating shaft (32) is fixedly installed inside the connector (31). A card seat (33) is rotatably connected to the rotating shaft (32). A limit piece (34) is provided on one side of the card seat (33), and a base (35) is rotatably connected to the bottom of the card seat (33).

4. The stent inference force testing positioning fixture according to claim 3, characterized in that: The limiting member (34) includes a collar (341) fixedly sleeved on the outside of the rotating shaft (32), a fixing plate (342) fixedly installed on the side of the card seat (33), a slide rod (343) slidably arranged in the fixing plate (342), a limiting rod (344) fixedly connected to one end of the slide rod (343), and a connecting spring (345) sleeved on the outside of the slide rod (343). The edge of the collar (341) is provided with a plurality of limiting grooves (346) for the limiting rod (344) to be inserted.

5. The stent inference force testing positioning fixture according to claim 3, characterized in that: A worm gear (36) is rotatably mounted on one side of the top of the base (35), and a worm wheel (37) that meshes with the worm gear (36) is fixedly sleeved on the outside of the card holder (33).

6. The positioning fixture for testing the inference force of the stent according to claim 1, characterized in that: The clamping mechanism (4) includes two lead screws (41) rotatably mounted on the top of the test seat (1). The two lead screws (41) are respectively set on both sides of the clearance groove (2). The lead screws (41) are externally threaded to multiple pairs of L-shaped clamps (42). The multiple pairs of clamps (42) are slidably set in multiple placement grooves (201).

7. The stent inference force testing positioning fixture according to claim 6, characterized in that: The lead screw (41) has multiple pairs of threads with opposite directions on its exterior, and multiple pairs of clamps (42) are respectively arranged on the multiple pairs of threads.

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