Automatic sample loading device for tensile test
By designing an automatic upper -sample device that includes a linear drive module and the stretching test of the floating seat, the problem that the existing stretch -on -sample device cannot achieve automatic superfatients, which improves test efficiency and reduces labor costs.
Patent Information
- Application Number
- CN202420682220.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-03
AI Technical Summary
The existing tensile machine loading device can only load one sample at a time, and the tensile test of automatic loading cannot be achieved, resulting in low test efficiency and high labor cost.
Design a type of stretching test automatically, including installing bottom plates, floating seats, bearing boards, and bearing seats. Drive multiple samples to move to the stretching test in turn through the straight -line drive module Essence
The effect of automatic samples is achieved, the test efficiency is improved, the errors caused by frequent operations are avoided, and labor costs are reduced.
Smart Images
Figure CN222419810U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sample loading on a stretching machine, and particularly relates to an automatic sample loading device for a tensile test. Background Art
[0002] A stretching machine is a main means for measuring the mechanical properties, tensile strength of materials and characterizing their fatigue life. At present, the sample loading device of the stretching machine can only load one sample at a time. After the sample completes the tensile test, it is necessary to manually load the next sample, and an automatic sample loading tensile test cannot be realized, resulting in low test efficiency and high labor cost. Content of the Utility Model
[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an automatic sample loading device for a tensile test, which can carry multiple samples at one time. After one sample completes the tensile test, the next sample is continuously tested, so that automatic sample loading can be realized, the test efficiency is improved, and the labor cost is reduced.
[0004] The purpose of the utility model is achieved by the following technical solutions: an automatic sample loading device for a tensile test, including a mounting base plate, a floating seat, a bearing plate and a bearing seat. A linear drive module is arranged on the mounting base plate. The bearing plate is installed on the slide of the linear drive module. The floating seat is connected above the bearing plate through a plurality of elastic telescopic components. The bearing seat is fixed on the mounting base plate. A strip-shaped groove for the sample to pass through is opened at the top of the bearing seat. A floating groove is opened on the inner wall of the bearing seat. The floating seat is restricted in the floating groove. A tensile sample carrier is arranged on the floating seat. The tensile sample carrier includes a carrier main body. A limiting wedge-shaped groove is penetrated along the length direction of the carrier main body. The limiting wedge-shaped groove penetrates through the top of the carrier main body, and the width of the limiting wedge-shaped groove gradually decreases from bottom to top.
[0005] In some embodiments, the elastic telescopic component includes a floating base, a guiding telescopic shaft and a spring. The floating base is connected to the bearing plate. Two ends of the guiding telescopic shaft are respectively connected to the floating base and the floating seat. The spring is sleeved on the guiding telescopic shaft.
[0006] In some embodiments, the cross-sectional shape of the bearing seat is U-shaped. Floating grooves are opened on both inner side walls of the bearing seat. Two ends of the floating seat are respectively located in the two floating grooves. When the spring is in a normal state, a gap is left between the floating seat and the bearing seat.
[0007] In some embodiments, the two side walls of the strip-shaped groove are inclined surfaces. The distance between the two inclined surfaces gradually decreases from bottom to top. The minimum distance between the two inclined surfaces is less than the width of the tensile sample carrier.
[0008] In some embodiments, it also includes a limiting end cover, which is connected to one end of the carrier body, and the limiting end cover blocks one end of the limiting wedge groove. A locking pin is provided on the end surface of the other end of the limiting wedge groove, and the locking pin is passed through the carrier body. The locking pin has the freedom to move along the height direction of the carrier body.
[0009] In some embodiments, a slide groove is opened on the carrier body along its height direction, a locking spring is arranged in the slide groove, one end of the locking pin is slidably adapted in the slide groove, and the two ends of the locking spring are respectively connected to the carrier body and the locking pin.
[0010] In some embodiments, a strip groove is opened at one end of the carrier body close to the locking pin, and the strip groove is connected to the slide groove. A sample ejection lever is arranged in the strip groove, and one end of the sample ejection lever is fixedly connected to the side wall of the locking pin, and the other end of the sample ejection lever passes through the strip groove.
[0011] The beneficial effects of the utility model are:
[0012] Multiple specimens can be placed in the limiting wedge groove of the carrier body at one time. The linear drive module drives the multiple specimens to be moved to the tensile test position of the tensile machine in sequence for tensile testing, thus achieving the effect of automatic sampling, thereby avoiding frequent manual clamping operations on the specimens, improving test efficiency, avoiding errors caused by manual operations, and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a three-dimensional diagram of an automatic sample loading device for tensile testing of the utility model;
[0014] Figure 2 This is a right view of an automatic sample loading device for tensile testing of the utility model;
[0015] Figure 3 This is a stereoscopic diagram of a tensile sample carrier in a stereoscopic diagram of an automatic sample loading device for tensile testing of the utility model;
[0016] Figure 4 It is a right view of a tensile sample carrier in a stereoscopic view of an automatic sample loading device for tensile testing of the utility model;
[0017] In the figure, 1-mounting base plate, 2-floating seat, 3-bearing plate, 4-bearing seat, 5-linear drive module, 6-strip groove, 7-floating groove, 8-tensile specimen carrier, 9-floating base, 10-guide telescopic shaft, 11-spring, 12-carrier body, 13-limiting end cover, 14-limiting wedge groove, 15-locking pin, 16-strip groove, 17-sample ejection lever. DETAILED DESCRIPTION
[0018] The technical solution of the present utility model is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present utility model is not limited to the following.
[0019] like Figures 1 to 4 As shown, an automatic sample loading device for tensile testing includes a mounting base plate 1, a floating seat 2, a bearing plate 3 and a bearing seat 4. A linear drive module 5 is arranged on the mounting base plate 1. The bearing plate 3 is mounted on a slide seat of the linear drive module 5. The floating seat 2 is connected to the upper part of the bearing plate 3 through a plurality of elastic telescopic components. The bearing seat 4 is fixed on the mounting base plate 1. A strip groove 6 for the sample to pass through is opened on the top of the bearing seat 4. A floating groove 7 is opened on the inner wall of the bearing seat 4. The floating seat 2 is confined in the floating groove 7. A tensile sample is arranged on the floating seat 2 The carrier 8, the tensile specimen carrier 8 comprises a carrier body 12, the carrier body 12 is provided with a limited wedge-shaped groove 14 along its length direction, the limited wedge-shaped groove 14 passes through the top of the carrier body 12, and the width of the limited wedge-shaped groove 14 gradually decreases from bottom to top, one end of the specimen 18 is sequentially loaded into the limited wedge-shaped groove 14, and a plurality of specimens are sequentially arranged along the length direction of the carrier body 12, one end of the specimen is made into a shape adapted to the limited wedge-shaped groove 14 (similar to a dog bone shape), and one end of the specimen slides from one end of the limited wedge-shaped groove 14 The sample is inserted into the limiting wedge groove 14, so that the sample cannot pass through the top of the limiting wedge groove 14. The two side walls of the strip groove 6 are inclined surfaces. The distance between the two inclined surfaces gradually decreases from bottom to top. The minimum distance between the two inclined surfaces is less than the width of the tensile sample carrier 8. The shape of the carrier body 12 is adapted to the shape of the strip groove 6, so that the carrier body 12 cannot pass through the strip groove 6. When the tensile machine stretches the sample, the inclined surfaces on both sides of the carrier body 12 contact the inclined surfaces of the strip groove 6, so that the carrier body 12 cannot continue to rise, so that the sample is subjected to the tensile load until it is broken. When the sample is broken, the floating seat 2 returns to its original position under the action of the elastic telescopic component, and then drives the floating seat 2 to move together with the linear drive module 5, so as to push the next sample to the test position and start the test of a new sample until all the tests are completed; when the tensile machine stretches the sample, the floating seat 2 rests on the bottom wall of the floating groove 7, so that the floating seat 2 cannot continue to move downward, thereby applying a load to the sample for a compression test, so that the loads of the tensile test and the compression test are both transmitted to the bearing seat 4, ensuring that the linear drive module 5 is not affected.
[0020] In some embodiments, Figure 1 and Figure 2As shown, the elastic telescopic assembly includes a floating base 9, a guiding telescopic shaft 10, and a spring 11. The floating base 9 is connected to the bearing plate 3. The two ends of the guiding telescopic shaft 10 are respectively connected to the floating base 9 and the floating seat 2. The spring 11 is sleeved on the guiding telescopic shaft 10. The cross-sectional shape of the bearing seat 4 is in the shape of a "冂". Floating grooves 7 are provided on both inner side walls of the bearing seat 4. The two ends of the floating seat 2 are respectively located in the two floating grooves 7. When the spring 11 is in its normal state, there is a gap between the floating seat 2 and the bearing seat 4. When the specimen completes the test and switches to the next specimen, the floating seat 2 returns to the origin under the action of the spring 11, leaving a gap between the floating seat and the bearing seat 4, enabling the elastic telescopic assembly and the floating seat 2 to move under the action of the linear drive module 5 to drive the specimen on the carrier body 12 to move and complete the switching of the specimen.
[0021] In some embodiments, as Figure 1 、 Figure 3 and Figure 4 shown, the tensile specimen carrier 8 further includes a limiting end cap 13. The limiting end cap 13 is connected to one end of the carrier body 12. The limiting end cap 13 seals one end of the limiting wedge-shaped groove 14. A locking pin 15 is provided on the end face of the other end of the limiting wedge-shaped groove 14. The locking pin 15 penetrates through the carrier body 12. The locking pin 15 has the freedom to move along the height direction of the carrier body 12. One end of the limiting wedge-shaped groove 14 is sealed by the limiting end cap 13. A sliding groove is provided on the carrier body 12 along its own height direction. A locking spring is provided in the sliding groove. One end of the locking pin 15 is slidably fitted in the sliding groove. The two ends of the locking spring are respectively connected to the carrier body 12 and the locking pin 15. A strip-shaped notch 16 is provided at one end of the carrier body 12 close to the locking pin 15. The strip-shaped notch 16 communicates with the sliding groove. A sample-removing lever 17 is provided in the strip-shaped notch 16. One end of the sample-removing lever 17 is fixedly connected to the side wall of the locking pin 15. The other end of the sample-removing lever 17 passes through the strip-shaped notch 16. The specimen slides into the limiting wedge-shaped groove 14 from the end where the locking pin 15 is provided. The locking pin 15 can move along the height direction of the carrier body 12. When loading the specimen, press down the sample-removing lever 17. The sample-removing lever 17 drives the locking pin 15 to move downward and compress the locking spring, so that the locking pin 15 retracts into the sliding groove, enabling the specimen to be loaded into the limiting wedge-shaped groove 14 of the carrier body 12 through the locking pin 15. After the specimen loading is completed, release the sample-removing lever 17. The locking pin 15 is reset upward under the reaction force of the locking spring, so that the locking pin 15 penetrates out of the sliding groove to limit the specimen from sliding out of the limiting wedge-shaped groove 14. Thus, the two ends of the limiting wedge-shaped groove 14 are respectively sealed by the limiting end cap 13 and the locking pin 15, ensuring that the specimen does not脱离 from the limiting wedge-shaped groove 14 and guaranteeing the stability of the specimen test.
Claims
1. An automatic sample loading device for tensile testing, characterized in that: It includes a mounting base plate (1), a floating seat (2), a bearing plate (3) and a bearing seat (4). A linear drive module (5) is arranged on the mounting base plate (1). The bearing plate (3) is mounted on the slide of the linear drive module (5). The floating seat (2) is connected above the bearing plate (3) through a plurality of elastic telescopic components. The bearing seat (4) is fixed on the mounting base plate (1). A strip-shaped groove (6) for the specimen to pass through is formed at the top of the bearing seat (4). A floating groove (7) is formed on the inner wall of the bearing seat (4). The floating seat (2) is restricted within the floating groove (7). A tensile specimen carrier (8) is arranged on the floating seat (2). The tensile specimen carrier (8) includes a carrier body (12). A limiting wedge-shaped groove (14) is formed through the carrier body (12) along its own length direction. The limiting wedge-shaped groove (14) penetrates through the top of the carrier body (12). The width of the limiting wedge-shaped groove (14) gradually decreases from bottom to top.
2. The automatic sample loading device for tensile testing according to claim 1, characterized in that: The elastic telescopic component includes a floating base (9), a guiding telescopic shaft (10) and a spring (11). The floating base (9) is connected to the bearing plate (3). Both ends of the guiding telescopic shaft (10) are respectively connected to the floating base (9) and the floating seat (2). The spring (11) is sleeved on the guiding telescopic shaft (10).
3. The automatic sample loading device for tensile testing according to claim 2, characterized in that: The cross-sectional shape of the bearing seat (4) is in an inverted U shape. The floating grooves (7) are formed on both inner side walls of the bearing seat (4). Both ends of the floating seat (2) are respectively located within the two floating grooves (7). When the spring (11) is in a normal state, there is a gap between the floating seat (2) and the bearing seat (4).
4. The automatic sample loading device for tensile testing according to claim 3, characterized in that: The two side walls of the strip-shaped groove (6) are inclined surfaces. The distance between the two inclined surfaces gradually decreases from bottom to top. The minimum distance between the two inclined surfaces is less than the width of the tensile specimen carrier (8).
5. The automatic sample loading device for tensile testing according to claim 1, characterized in that: The tensile specimen carrier (8) further includes a limiting end cap (13). The limiting end cap (13) is connected to one end of the carrier body (12). The limiting end cap (13) blocks one end of the limiting wedge-shaped groove (14). A locking pin (15) is arranged on the end surface of the other end of the limiting wedge-shaped groove (14). The locking pin (15) is penetrated through the carrier body (12). The locking pin (15) has a degree of freedom to move along the height direction of the carrier body (12).
6. The automatic sample loading device for tensile testing according to claim 5, characterized in that: A sliding groove is formed on the carrier body (12) along its own height direction. A locking spring is arranged in the sliding groove. One end of the locking pin (15) is slidably fitted in the sliding groove. Both ends of the locking spring are respectively connected to the carrier body (12) and the locking pin (15).
7. The automatic sample loading device for tensile testing according to claim 6, characterized in that: A strip-shaped slot (16) is formed at one end of the carrier body (12) close to the locking pin (15), the strip-shaped slot (16) being connected to the slide groove, a sample ejection lever (17) being arranged in the strip-shaped slot (16), one end of the sample ejection lever (17) being fixedly connected to the side wall of the locking pin (15), and the other end of the sample ejection lever (17) passing through the strip-shaped slot (16).