Aerospace material small-size sample detection device

Abstract

The invention relates to the technical field of aerospace material detection, in particular to an aerospace material small-size sample detection device. Comprising a base, a supporting rod is installed on the base, an upper cross beam is arranged on the supporting rod, lead screw motors are further symmetrically installed on the base, a lower cross beam is arranged between lead screws of the two lead screw motors in a threaded mode, electric chucks are arranged in the upper cross beam and the lower cross beam, a pressing block is installed at the bottom of the lower cross beam, and an adjusting mechanism is arranged on the base. A connecting frame is arranged on the adjusting mechanism, and the adjusting mechanism is used for adjusting the orientation of the connecting frame. By arranging the adjusting mechanism, the clamping block, the pressure applying mechanism and the translation mechanism, the orientation of the sample can be automatically adjusted, and different stress surfaces of the sample are clamped and limited, so that the multi-surface mechanical property detection of the small-size sample of the aerospace material is realized, the sample does not need to be manually overturned and fixed again, the detection efficiency is greatly improved, and the detection cost is reduced. And the labor intensity of operators is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of aerospace material detection, and in particular to a small-size sample detection device for aerospace materials. Background Art

[0002] With the rapid development of the aerospace industry, the requirements for material performance are increasing. Aerospace materials usually need to have high strength, light weight, high temperature resistance, corrosion resistance and good fatigue performance to meet the requirements of use in extreme environments. In the process of material research and development and application, accurate evaluation of its mechanical properties is an important part of ensuring structural safety and reliability.

[0003] In existing technologies, universal pressure testing machines are widely used to test the mechanical properties of various materials, including compression strength, bending strength, and tensile strength. However, when testing small-sized specimens of aerospace materials, especially when pressure tests need to be performed on multiple surfaces of the specimen, since existing devices can usually only apply pressure in a single direction (such as from top to bottom), operators need to manually flip the specimen and re-fix it in order to test different stress-bearing surfaces. This manual intervention method is not only inefficient, but also time-consuming and labor-intensive. Summary of the Invention

[0004] In view of this, the present invention provides a small-size specimen detection device for aerospace materials, which can solve the shortcomings of the existing universal pressure testing machine that requires manual flipping and re-fixing of the specimen when detecting small-size specimens of aerospace materials, resulting in not only low efficiency but also time-consuming and labor-intensive.

[0005] The technical implementation scheme of the present invention is: a small-size sample detection device for aerospace materials, including a base, a support rod is installed on the base, an upper crossbeam is provided on the support rod, a screw motor is also symmetrically installed on the base, a lower crossbeam is threadedly provided between the screws of the two screw motors, an electric chuck is provided in the upper crossbeam and the lower crossbeam, a pressure block is installed at the bottom of the lower crossbeam, an adjusting mechanism is provided on the base, a connecting frame is provided on the adjusting mechanism, the adjusting mechanism is used to adjust the direction of the connecting frame, a clamping block for clamping the sample is symmetrically slidably provided on the connecting frame, a fixed frame is also installed on the base, a rotating plate is rotatably provided on the fixed frame, a torsion spring is connected between the fixed frame and the rotating plate, a resist frame for resisting the sample is slidably provided on the rotating plate, a pressure mechanism for applying pressure on the clamping block is provided on the connecting frame, a limiting mechanism and a translation mechanism are provided on the base, the limiting mechanism is used to limit the rotating plate, a resist rod for resisting the sample is connected to the translation mechanism, and the translation mechanism is used to drive the resist rod to move.

[0006] More preferably, the adjustment mechanism includes a connecting seat, a servo motor, a sleeve and a dual-axis motor. The connecting seat is installed on the top of the base, the servo motor is arranged on the connecting seat, the output shaft of the servo motor is connected to the sleeve, the dual-axis motor is arranged in the sleeve, and the connecting frame is connected between the output shafts on both sides of the dual-axis motor.

[0007] More preferably, the pressure mechanism includes a first spring and a second spring, the first spring is connected between the two clamping blocks, and the second spring is connected between the rotating plate and the support frame.

[0008] More preferably, the limiting mechanism includes a guide frame, a lifting frame and a spring. The guide frame is provided on the top of the base, and the lifting frame is slidably provided on the guide frame. The lifting frame is used to limit the rotating plate, and a spring is connected between the lifting frame and the guide frame.

[0009] More preferably, the translation mechanism includes an electric push rod and a sliding frame, the electric push rods are symmetrically arranged on the top of the base, the telescopic rods of the electric push rods are connected to the sliding frame, and the support rods are connected to the sliding frame.

[0010] More preferably, a heating mechanism is further included, which includes a heat preservation tube and a heating wire. The heat preservation tube is slidably provided at the bottom of the lower cross beam, and the heating wire is provided inside the heat preservation tube.

[0011] More preferably, it also includes a conveying mechanism, which includes a mounting frame, a movable frame, a belt conveyor and a bidirectional screw rod. The mounting frame is installed on the side of the upper beam, the movable frame is symmetrically slidably arranged on the mounting frame, the belt conveyor is arranged on the movable frame, and the bidirectional screw rod is rotatably installed on the mounting frame. The two movable frames are respectively threadedly connected to the two ends of the bidirectional screw rod.

[0012] More preferably, a hand wheel is further included, and both ends of the bidirectional screw rod are connected to the hand wheel, and the hand wheel is used to drive the bidirectional screw rod to rotate.

[0013] The present invention has the following advantages: 1. The present invention can automatically adjust the orientation of the sample and clamp and limit different force-bearing surfaces of the sample by providing an adjustment mechanism, a clamping block, a pressure mechanism and a translation mechanism, thereby realizing multi-faceted mechanical property testing of small-sized samples of aerospace materials. There is no need to manually flip the sample and re-fix it, which greatly improves the testing efficiency and reduces the labor intensity of the operator.

[0014] 2. The present invention provides a heating mechanism so that the specimen can be tested in a high-temperature environment, simulating the extreme working conditions of real aircraft components, thereby more accurately evaluating the mechanical properties of the material under high-temperature conditions.

[0015] 3. The conveying mechanism of the present invention combines a belt conveyor and a bidirectional screw structure to realize the automatic loading and unloading functions of the sample, which is particularly suitable for tensile strength testing scenarios. It not only improves the continuity of testing, but also reduces the frequency of manual intervention and improves overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the upper beam, lower beam and electric chuck of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the connecting seat, the fixing bracket and the fixing bracket of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the adjusting mechanism and the limiting mechanism of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the connecting frame, the clamping block and the first spring of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the translation mechanism of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the electric push rod, the sliding frame and the supporting rod of the present invention.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the base, lower crossbeam and insulation tube of the present invention.

[0024] Figure 9 This is a structural separation cross-sectional view of the heating mechanism of the present invention.

[0025] Figure 10 It is a schematic diagram of the three-dimensional structure of the upper crossbeam, mounting frame and belt conveyor of the present invention.

[0026] Figure 11 It is a schematic diagram of the three-dimensional structure of the conveying mechanism of the present invention.

[0027] Figure 12 It is a schematic diagram of the three-dimensional structure of the belt conveyor, bidirectional screw rod and hand wheel of the present invention.

[0028] The numbers in the figure are: 1-base, 2-support rod, 3-upper beam, 4-screw motor, 5-lower beam, 6-electric chuck, 7-pressure block, 801-connecting seat, 802-servo motor, 803-housing, 804-dual-axis motor, 9-connecting frame, 10-clamp, 11-fixed frame, 12-turn plate, 13-torsion spring, 14-resistance frame, 1501-first spring, 1502-second spring, 1601-guide frame, 1602-lifting frame, 1603-shrapnel, 1701-electric push rod, 1702-sliding frame, 18-resistance rod, 19-insulation cylinder, 20-heating wire, 21-mounting frame, 22-movable frame, 23-belt conveyor, 24-bidirectional screw, 25-hand wheel. DETAILED DESCRIPTION

[0029] Example: A small-size sample testing device for aerospace materials, see Figure 1-Figure 7 As shown, a universal pressure testing machine is provided, which includes a base 1, a support rod 2, an upper crossbeam 3, a screw motor 4, a lower crossbeam 5, an electric chuck 6 and a pressure block 7; support rods 2 are symmetrically installed on the top of the base 1, and the number of support rods 2 is four; an upper crossbeam 3 is installed between the upper sides of the four support rods 2; a screw motor 4 is symmetrically installed inside the base 1; a lower crossbeam 5 is threadedly arranged between the screws of the two screw motors 4, and the lower crossbeam 5 is located directly below the upper crossbeam 3; electric chucks 6 are provided at the bottom of the upper crossbeam 3 and the top of the lower crossbeam 5; a pressure block 7 is installed in the middle of the bottom of the lower crossbeam 5, and the pressure block 7 is used to apply pressure to the sample; It also includes an adjusting mechanism, a connecting frame 9, a clamping block 10, a fixing frame 11, a rotating plate 12, a torsion spring 13, a supporting frame 14, a pressure mechanism, a limiting mechanism, a translation mechanism and a supporting rod 18; an adjusting mechanism is provided on the base 1, and a connecting frame 9 is provided on the adjusting mechanism, and the adjusting mechanism is used to adjust the direction of the connecting frame 9; the connecting frame 9 is provided with a clamping block 10 for sliding symmetrically back and forth, and the clamping block 10 is used to clamp the sample, thereby limiting the position of the sample; a fixing frame 11 is installed on the top right side of the base 1; a rotating mechanism is provided on the upper side of the fixing frame 11 Plate 12; torsion springs 13 are connected between the lower parts of the front and rear sides of the rotating plate 12 and the upper side of the fixed frame 11; a support frame 14 is slidingly provided on the top of the rotating plate 12, and the support frame 14 is used to support the sample; a pressure mechanism is provided on the connecting frame 9, and the pressure mechanism is used to apply pressure to the clamping block 10 and the support frame 14; a limiting mechanism and a translation mechanism are provided on the base 1, and the limiting mechanism is used to limit the rotating plate 12, and four support rods 18 are connected to the translation mechanism, and the support rods 18 are used to support the sample, and the translation mechanism is used to drive the support rods 18 to move.

[0030] See Figure 3 and Figure 4As shown, the adjustment mechanism includes a connecting seat 801, a servo motor 802, a housing 803 and a dual-axis motor 804; the connecting seat 801 is installed on the left side of the top of the base 1; the servo motor 802 is arranged on the right side of the connecting seat 801; the housing 803 is connected to the output shaft of the servo motor 802; the dual-axis motor 804 is arranged inside the housing 803, and the connecting frame 9 is connected between the output shafts on the front and rear sides of the dual-axis motor 804.

[0031] See Figure 4 and Figure 5 As shown, the pressure mechanism includes a first spring 1501 and a second spring 1502; two first springs 1501 are connected between the two clamping blocks 10, and the first spring 1501 is located on the inner side of the connecting frame 9; two second springs 1502 are connected between the top of the rotating plate 12 and the support frame 14.

[0032] See Figure 3 and Figure 4 As shown, the limiting mechanism includes a guide frame 1601, a lifting frame 1602 and a spring 1603; the guide frame 1601 is provided on the top right side of the base 1, and the guide frame 1601 is located on the left side of the fixed frame 11; the lifting frame 1602 is slidably provided on the guide frame 1601, and the upper side of the lifting frame 1602 abuts against the left side of the rotating plate 12, so that the lifting frame 1602 limits the rotating plate 12, and the connecting frame 9 will contact the lifting frame 1602 when rotating clockwise; the spring 1603 is connected between the upper side of the lifting frame 1602 and the upper right side of the guide frame 1601.

[0033] See Figure 6 and Figure 7 As shown, the translation mechanism includes an electric push rod 1701 and a sliding frame 1702; the electric push rod 1701 is symmetrically arranged on the top of the base 1; the sliding frame 1702 is symmetrically slidingly arranged on the top of the base 1, and the two sliding frames 1702 are located between the two electric push rods 1701. The two sliding frames 1702 are respectively connected to the telescopic rods of the two electric push rods 1701, and the four supporting rods 18 are symmetrically connected to the side of the two sliding frames 1702 close to each other, and two supporting rods 18 are connected to one of the sliding frames 1702.

[0034] In the initial state, the upper side of the lifting frame 1602 abuts against the left side of the rotating plate 12, so that the lifting frame 1602 limits the rotating plate 12, thereby causing the torsion spring 13 to be in a deformed state; When in use, first push the two clamping blocks 10 away from each other to stretch the first spring 1501. Then place the sample on the connecting frame 9 so that the sample is between the two clamping blocks 10. Then release the clamping blocks 10, so that the first spring 1501 uses its elastic force to press the clamping blocks 10, thereby driving the two clamping blocks 10 to move towards each other. When the clamping blocks 10 come into contact with the sample, the two clamping blocks 10 will clamp the sample. Then, perform subsequent operations according to needs: If a pressure test is required on the top surface of the sample, the lower crossbeam 5 and the pressure block 7 are driven downward by the screw motor 4. When the pressure block 7 contacts the top surface of the sample, the pressure block 7 will apply pressure to the top surface of the sample, thereby performing a strength test on the sample. After the strength test of the sample is completed, the lower crossbeam 5 and the pressure block 7 are driven upward by the screw motor 4 to reset, so that the pressure block 7 is separated from the top surface of the sample. In this way, the pressure test on the top surface of the sample can be performed. If a pressure test is required on the front or rear side of the sample, the servo motor 802 drives the housing 803, the dual-axis motor 804, the connecting frame 9 and the clamping block 10 to rotate or reverse ninety degrees, so that the clamping block 10 clamps the sample and rotates or reverses ninety degrees, thereby adjusting the orientation of the connecting frame 9 and the sample so that the connecting frame 9 and the sample face the front or rear, so that the original rear side or front side of the sample is at the current top surface, and the clamping block 10 on the front or rear side contacts the top of the base 1, and then the sliding frame 1702 and the push rod 18 are driven by the front or rear electric push rod 1701 to move toward the side close to the sample until the push rod 18 contacts the side of the sample, so that the push rod 18 presses against the sample, thereby limiting the sample and preventing the sample from popping out from between the two clamping blocks 10, and then the lower beam 5 and the pressure block are driven by the screw motor 4. 7 moves downward, and when the pressure block 7 contacts the clamping block 10, the pressure block 7 will apply pressure to the clamping block 10, so that the clamping block 10 applies pressure to the top surface of the sample, and then the sample is tested for strength. After the sample has completed the strength test, the lower crossbeam 5 and the pressure block 7 are driven upward and reset by the screw motor 4, so that the pressure block 7 is separated from the clamping block 10, and then the sliding frame 1702 and the push rod 18 are driven to move to the side away from the sample and reset by the front or rear electric push rod 1701. The servo motor 802 drives the housing 803, the dual-axis motor 804, the connecting frame 9 and the clamping block 10 to reverse or rotate 90 degrees to reset, so that the clamping block 10 clamps the sample to reverse or rotate 90 degrees to reset, thereby restoring the direction of the connecting frame 9 and the sample, so that the connecting frame 9 and the sample face directly upward, so that the front side or rear side of the sample can be pressure tested; If a pressure test is required on the left side of the sample, the dual-axis motor 804 drives the connecting frame 9 and the clamping block 10 to rotate clockwise 90 degrees, so that the clamping block 10 clamps the sample and rotates clockwise 90 degrees, thereby adjusting the direction of the connecting frame 9 and the sample, so that the connecting frame 9 and the sample face right, so that the original left side of the sample is at the current top surface. During this period, when the clamping block 10 rotates clockwise until it contacts the lifting frame 1602, the clamping block 10 will squeeze the lifting frame 1602 to move downward, and the spring piece 1603 will be deformed. When the lifting frame 1602 separates from the rotating plate 12, the lifting frame 160 2 will release the limit of the rotating plate 12, at this time the torsion spring 13 returns to its original state, the torsion spring 13 will drive the rotating plate 12 and the bracket 14 to rotate counterclockwise, when the bracket 14 contacts the right side of the sample, the sample will squeeze the bracket 14 to move to the right, the second spring 1502 is compressed, and the compression of the second spring 1502 can make the second spring 1502 use its elastic force to press the bracket 14, so that the bracket 14 is against the right side of the sample, thereby limiting the sample and preventing the sample from popping out from between the two clamping blocks 10, and then the lower beam 5 and the pressure block 7 are driven downward by the screw motor 4. When the pressure block 7 When in contact with the top surface of the sample, the pressure block 7 will squeeze the sample and move downward until the bottom of the sample contacts the top of the base 1. Then, as the pressure block 7 continues to press downward, the pressure block 7 will apply pressure to the top surface of the sample, thereby performing a strength test on the sample. After the sample completes the strength test, the lower crossbeam 5 and the pressure block 7 are driven upward and reset by the screw motor 4, so that the pressure block 7 is separated from the top surface of the sample. Subsequently, the connecting frame 9 and the clamping block 10 are driven by the dual-axis motor 804 to rotate counterclockwise 90 degrees to reset, so that the clamping block 10 clamps the sample and rotates counterclockwise 90 degrees to reset, thereby restoring the orientation of the connecting frame 9 and the sample. The connecting frame 9 and the sample face upward. During this period, when the clamping block 10 rotates counterclockwise to separate from the lifting frame 1602, the spring piece 1603 returns to its original state, and the spring piece 1603 drives the lifting frame 1602 to move upward and reset. When the lifting frame 1602 contacts the rotating plate 12, the lifting frame 1602 squeezes the rotating plate 12 and the retaining frame 14 to rotate clockwise and reset, and limits the rotating plate 12. When the retaining frame 14 separates from the right side of the sample, the second spring 1502 returns to its original state, and the second spring 1502 drives the retaining frame 14 to move left and reset. In this way, the left side of the sample can be pressure tested. After the pressure test on the sample is completed, the two clamping blocks 10 are pushed away from each other again to release the sample. Then the sample is removed from the connecting frame 9 and the two clamping blocks 10 are released. At this time, the first spring 1501 returns to its original state and the first spring 1501 drives the two clamping blocks 10 to move closer to each other and reset. When the operator needs to test the tensile strength of the sample, the sample is placed on the electric chuck 6 in the upper beam 3, and then the electric chuck 6 in the upper beam 3 is used to clamp the sample, and then the lower beam 5 is driven upward by the screw motor 4 until the sample is in the electric chuck 6 in the lower beam 5, and then the electric chuck 6 in the lower beam 5 is used to clamp the sample, and then the lower beam 5 is driven downward by the screw motor 4, so that the electric chuck 6 in the upper beam 3 and the lower beam 5 pull the sample, thereby testing the tensile strength of the sample. After the tensile strength test of the sample is completed, the electric chuck 6 in the upper beam 3 and the lower beam 5 is used to loosen the sample, and then the sample is taken out from between the two electric chucks 6, and then the lower beam 5 is driven downward by the screw motor 4 to be reset.

[0035] See Figure 8 and Figure 9 As shown, a heating mechanism is also included, which includes a heat preservation tube 19 and a heating wire 20; the heat preservation tube 19 is slidably provided at the bottom of the lower crossbeam 5; and the heating wire 20 is provided inside the heat preservation tube 19.

[0036] By setting up a heating mechanism, when the two clamping blocks 10 need to be pushed away from each other, the insulation tube 19 can be pulled upward first to retract the insulation tube 19 into the lower crossbeam 5, and then the two clamping blocks 10 can be pushed away from each other. After that, after loosening the clamping blocks 10, loosen the insulation tube 19 again, and move the insulation tube 19 downward to cover the sample clamped in the clamping blocks 10. After that, the operator can use the heating wire 20 to heat the insulation tube 19 to raise the temperature inside the insulation tube 19 to the specified temperature, so that the sample is within the specified temperature. In this way, it is convenient for the operator to perform pressure testing on the sample at the specified temperature.

[0037] See Figure 10-12 As shown, it also includes a conveying mechanism, which includes a mounting frame 21, a movable frame 22, a belt conveyor 23 and a bidirectional screw rod 24; the mounting frame 21 is installed on the rear side of the upper beam 3; the movable frames 22 are symmetrically slidably arranged on the mounting frame 21; the belt conveyors 23 are provided at the bottom of the two movable frames 22, and the bidirectional screw rod 24 is rotatably installed on the lower side of the mounting frame 21, and the two movable frames 22 are respectively threadedly connected to the left and right ends of the bidirectional screw rod 24.

[0038] See Figure 11 and Figure 12 As shown, a hand wheel 25 is also included; both ends of the bidirectional screw rod 24 are connected to the hand wheel 25, and the hand wheel 25 is used to drive the bidirectional screw rod 24 to rotate.

[0039] By setting up the conveying mechanism and the hand-cranked wheel 25, when the operator needs to test the tensile strength of the sample, he can twist the hand-cranked wheel 25 from the rear of the upper beam 3 to rotate or reverse, thereby driving the bidirectional screw rod 24 to rotate or reverse, so that the bidirectional screw rod 24 drives the two movable frames 22 to move closer or farther away, thereby driving the two belt conveyors 23 to move closer or farther away, thereby adjusting the distance between the two belt conveyors 23 until the distance between the belt conveyors 23 can clamp the sample. After the adjustment is completed, the hand-cranked wheel 25 is released, and the sample to be tested is then intermittently placed between the two belt conveyors from the rear of the upper beam 3. 23, so that the belts of the two belt conveyors 23 clamp the sample to be tested, and the sample to be tested is conveyed forward by the two belt conveyors 23 until the sample to be tested enters the electric chuck 6 in the upper crossbeam 3. In this way, the sample to be tested can be fed, thereby facilitating the operator to perform tensile strength testing on the sample; when the sample is tested, the sample that has completed the test is conveyed forward by the two belt conveyors 23, so that the sample that has completed the test is separated from between the two belt conveyors 23, and the next sample to be tested is conveyed into the electric chuck 6 in the upper crossbeam 3 by the two belt conveyors 23.

Claims

1. A small-size specimen testing device for aerospace materials, comprising a base (1), a support rod (2) mounted on the base (1), an upper crossbeam (3) mounted on the support rod (2), a screw motor (4) symmetrically mounted on the base (1), a lower crossbeam (5) threadedly mounted between the screws of the two screw motors (4), an electric chuck (6) mounted in each of the upper crossbeam (3) and the lower crossbeam (5), and a pressure block (7) mounted at the bottom of the lower crossbeam (5), characterized in that: The base (1) is provided with an adjustment mechanism, a connecting frame (9) is provided on the adjustment mechanism, the adjustment mechanism is used to adjust the orientation of the connecting frame (9), a clamping block (10) for clamping the sample is symmetrically slidably provided on the connecting frame (9), a fixed frame (11) is also installed on the base (1), a rotating plate (12) is rotatably provided on the fixed frame (11), a torsion spring (13) is connected between the fixed frame (11) and the rotating plate (12), a supporting frame (14) for supporting the sample is slidably provided on the rotating plate (12), a pressure mechanism for applying pressure to the clamping block (10) is provided on the connecting frame (9), a limiting mechanism and a translation mechanism are provided on the base (1), the limiting mechanism is used to limit the rotating plate (12), a supporting rod (18) for supporting the sample is connected to the translation mechanism, and the translation mechanism is used to drive the supporting rod (18) to move.

2. The small-size specimen testing device for aerospace materials according to claim 1, characterized in that: The adjustment mechanism comprises a connecting seat (801), a servo motor (802), a casing (803) and a dual-axis motor (804); the connecting seat (801) is installed on the top of the base (1); the servo motor (802) is arranged on the connecting seat (801); the output shaft of the servo motor (802) is connected to the casing (803); the dual-axis motor (804) is arranged in the casing (803); and the connecting frame (9) is connected between the output shafts on both sides of the dual-axis motor (804).

3. The small-size specimen testing device for aerospace materials according to claim 1, characterized in that: The pressure mechanism comprises a first spring (1501) and a second spring (1502), wherein the first spring (1501) is connected between the two clamping blocks (10), and the second spring (1502) is connected between the rotating plate (12) and the support frame (14).

4. The small-size specimen testing device for aerospace materials according to claim 1, characterized in that: The limiting mechanism comprises a guide frame (1601), a lifting frame (1602) and a spring piece (1603). The guide frame (1601) is provided on the top of the base (1). The lifting frame (1602) is slidably provided on the guide frame (1601). The lifting frame (1602) is used to limit the rotating plate (12). The spring piece (1603) is connected between the lifting frame (1602) and the guide frame (1601).

5. The small-size specimen testing device for aerospace materials according to claim 1, characterized in that: The translation mechanism comprises an electric push rod (1701) and a sliding frame (1702), wherein the electric push rod (1701) is symmetrically arranged on the top of the base (1), the sliding frame (1702) is connected to the telescopic rod of the electric push rod (1701), and the support rod (18) is connected to the sliding frame (1702).

6. The small-size specimen testing device for aerospace materials according to claim 1, characterized in that: It also includes a heating mechanism, which includes a heat preservation tube (19) and a heating wire (20). The heat preservation tube (19) is slidably provided at the bottom of the lower crossbeam (5), and the heating wire (20) is provided inside the heat preservation tube (19).

7. The small-size specimen testing device for aerospace materials according to claim 1, characterized in that: The utility model also includes a conveying mechanism, which includes a mounting frame (21), a movable frame (22), a belt conveyor (23) and a bidirectional screw rod (24). The mounting frame (21) is installed on the side of the upper beam (3). The movable frame (22) is symmetrically slidably arranged on the mounting frame (21). The belt conveyor (23) is arranged on the movable frame (22). The bidirectional screw rod (24) is rotatably installed on the mounting frame (21). The two movable frames (22) are respectively threadedly connected to the two ends of the bidirectional screw rod (24).

8. The small-size specimen testing device for aerospace materials according to claim 7, characterized in that: It also includes a hand-cranked wheel (25), both ends of the bidirectional screw rod (24) are connected to the hand-cranked wheel (25), and the hand-cranked wheel (25) is used to drive the bidirectional screw rod (24) to rotate.

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