Titanium alloy part anti-fatigue testing device

Abstract

The utility model belongs to the technical field of material testing, and discloses a titanium alloy part anti-fatigue testing device which comprises a protection box, a first electric push rod is fixedly connected to the top face of the inner wall of the protection box, a fork-shaped block is fixedly connected to the bottom end of the first electric push rod, and a movable clamping block is slidably connected to the outer side of the fork-shaped block. A guide rail is slidably connected to the outer side of the movable clamping block, a titanium alloy part body is attached to one end of the movable clamping block, a fixed clamping block is attached to the outer side of the titanium alloy part body, a pressing block is attached to the outer side of the titanium alloy part body, a pressure sensor is embedded in the pressing block, and a second electric push rod is fixedly connected to one side of the pressing block; by means of the technical scheme, the problems that in the prior art, when anti-fatigue testing is carried out on parts of different sizes, a clamping plate cannot effectively clamp cylindrical parts, the testing result is affected, the part clamping speed is low, centering and fixing cannot be carried out, and the using performance of the device is low are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of material testing, in particular to a titanium alloy part fatigue resistance testing device. Background Art

[0002] Titanium alloy has high strength and a wide range of applications. It is suitable for aerospace, automotive, medical and chemical industries. Therefore, when using titanium alloy parts, it is necessary to test the fatigue strength of titanium alloy parts to prevent danger caused by exceeding the fatigue strength.

[0003] At the same time, a metal part tension and compression fatigue testing device with application number 202323069987.6 is provided, which sets a bending mechanism and a limiting mechanism, so that when the material is subjected to tension and compression testing, it can not only reduce the bending phenomenon of the material during the tension and compression testing, but also perform bending tests on the material; it includes a supporting mechanism; it also includes a tension and compression mechanism, a clamping mechanism, a fixing mechanism, a bending mechanism and a limiting mechanism, the tension and compression mechanism is installed on the upper end of the supporting mechanism, the clamping mechanism is installed on the tension and compression mechanism, the fixing mechanism is installed on the supporting mechanism, the bending mechanism is installed on the supporting mechanism, and the limiting mechanism is installed on the bending mechanism; the supporting mechanism stabilizes the equipment, the tension and compression mechanism pulls and compresses the material, the clamping mechanism clamps the material, the fixing mechanism fixes the material, the bending mechanism bends the material, and the limiting mechanism limits the material.

[0004] An existing tensile and compressive fatigue testing device for metal parts uses a clamp to clamp and fix the parts during use. However, when performing fatigue tests on parts of different sizes, the clamp cannot effectively clamp the cylindrical parts, the part clamping speed is low, and the device has low performance.

[0005] Therefore, in response to the above problems, a titanium alloy parts fatigue resistance testing device is proposed. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a titanium alloy parts fatigue resistance testing device, which has the advantages of fast clamping speed and wide applicability.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a titanium alloy part fatigue resistance testing device, comprising a protective box, a first electric push rod fixedly connected to the top surface of the inner wall of the protective box, a fork-shaped block fixedly connected to the bottom end of the first electric push rod, a movable clamping block slidably connected to the outer side of the fork-shaped block, a guide rail slidably connected to the outer side of the movable clamping block, one end of the movable clamping block is fitted with a titanium alloy part body, a fixed clamping block is fitted with the outer side of the titanium alloy part body, a pressure block is fitted with the outer side of the titanium alloy part body, a pressure sensor is embedded in the interior of the pressure block, and a second electric push rod is fixedly connected to one side of the pressure block.

[0008] Preferably, a blower is fixedly connected to the outside of the protective box, a pipe is fixedly connected to one side of the blower, a heating pipe is embedded in the top surface of the inner wall of the protective box, and a temperature sensor is fixedly connected to the upper inner wall of the protective box.

[0009] Preferably, the interior of the guide rail is slidably connected to a limit block, and one side of the limit block is fixedly connected to the outer side of the movable clamping block.

[0010] Preferably, a protective pad is fixedly connected to the inner side of the pressing block, and the material of the protective pad is rubber.

[0011] Preferably, one end of the second electric push rod is fixedly connected to a U-shaped rod, and the lower part of the U-shaped rod is spirally connected to a threaded rod.

[0012] Preferably, a polished rod is inserted into the lower portion of the U-shaped rod, and both ends of the polished rod are fixedly connected to the inner wall of the protective box.

[0013] Preferably, the interior of the protective box is slidably connected with transparent glass, and the outer side of the transparent glass is inlaid with a sealing strip.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model sets a movable clamping block. When fatigue test is required on titanium alloy parts of different sizes and shapes, the titanium alloy parts are placed on top of the fixed clamping block. The movable clamping block slides on the guide rail to clamp and fix the titanium alloy parts. Through three-angle fixation, it can effectively clamp parts of various shapes such as columns. The parts can be automatically centered and clamped without adjustment, which is convenient and fast with high performance.

[0016] 2. The utility model heats the internal titanium alloy parts by setting a heating pipe. At the same time, the pipe can promote the circulation of hot air inside the protective box to prevent large temperature differences in different areas. It can heat all parts of the titanium alloy parts at the same time and effectively test the mechanical properties of titanium alloy parts under different temperature conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the cutaway structure of the protective box of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the briquette of the utility model;

[0021] Figure 5 This is a schematic diagram of the sealing strip position structure of the utility model. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figures 1 to 5 As shown, the utility model provides a titanium alloy part fatigue resistance testing device, including a protective box 1, the top surface of the inner wall of the protective box 1 is fixedly connected to a first electric push rod 2, the bottom end of the first electric push rod 2 is fixedly connected to a fork block 3, the outer side of the fork block 3 is slidably connected to a movable clamping block 4, the outer side of the movable clamping block 4 is slidably connected to a guide rail 5, the guide rail 5 is fixedly connected to the side wall of the protective box 1, one end of the movable clamping block 4 is fitted with a titanium alloy part body 6, the outer side of the titanium alloy part body 6 is fitted with a fixed clamping block 7, the outer side of the titanium alloy part body 6 is fitted with a pressure block 8, the pressure block 8 is replaceable, and is convenient for applying pressure to different titanium alloy parts, the interior of the pressure block 8 is inlaid with a pressure sensor 9, and one side of the pressure block 8 is fixedly connected to a second electric push rod 10.

[0024] Specifically, a blower 11 is fixedly connected to the outside of the protective box 1, a pipe 12 is fixedly connected to one side of the blower 11, a heating tube 13 is embedded in the top surface of the inner wall of the protective box 1, and a temperature sensor 14 is fixedly connected to the upper inner wall of the protective box 1, so as to facilitate real-time understanding of the internal temperature conditions.

[0025] Furthermore, the internal sliding connection of the guide rail 5 is connected to the limit block 15, and one side of the limit block 15 is fixedly connected to the outer side of the movable clamp 4. Under the action of the limit block 15, the integrity between the movable clamp 4 and the guide rail 5 is increased, preventing the movable clamp 4 from falling off during movement, and providing a guiding effect.

[0026] Furthermore, a protective pad 16 is fixedly connected to the inner side of the pressing block 8, and the material of the protective pad 16 is rubber. Under the action of the protective pad 16, the pressing block 8 is prevented from causing friction and wear to the titanium alloy part body 6, thereby reducing losses.

[0027] It is worth noting that one end of the second electric push rod 10 is fixedly connected to a U-shaped rod 17, and the lower part of the U-shaped rod 17 is spirally connected to a threaded rod 18. A handwheel is provided at one end of the threaded rod 18 to facilitate the rotation of the threaded rod 18. The threaded rod 18 can drive the U-shaped rod 17 to move, and fatigue resistance tests can be performed on the titanium alloy part body 6 at different positions.

[0028] It is worth noting that a light rod 19 is inserted into the lower part of the U-shaped rod 17, and both ends of the light rod 19 are fixedly connected to the inner wall of the protective box 1. Under the action of the light rod 19, it guides the movement of the U-shaped rod 17 and prevents the U-shaped rod 17 from shaking during the movement.

[0029] It is worth mentioning that the interior of the protective box 1 is slidably connected with a transparent glass 20, which makes it convenient for staff to observe the internal situation of the protective box 1 at any time. The outer side of the transparent glass 20 is inlaid with a sealing strip 21. Under the action of the sealing strip 21, the tightness of the connection between the transparent glass 20 and the protective box 1 is improved, and the air tightness is improved.

[0030] Among them, the first electric push rod 2, the pressure sensor 9, the second electric push rod 10, the blower 11, the heating tube 13 and the temperature sensor 14 are existing technologies and will not be described in detail; at the same time, the present invention also includes a power supply, a controller and a switch, which are not the main technical points of this patent and will not be described in detail.

[0031] Working principle and process:

[0032] When the staff needs to conduct fatigue resistance tests on titanium alloy parts of different sizes and shapes, they first place the titanium alloy part body 6 above the fixed clamping block 7 and start the first electric push rod 2 fixedly connected to the top surface of the inner wall of the protective box 1. The first electric push rod 2 pushes the fork block 3 to move downward, and the fork block 3 drives the movable clamping block 4 to move under the guidance of the guide rail 5. Under the action of the limit block 15, the integrity between the movable clamping block 4 and the guide rail 5 is increased to prevent the movable clamping block 4 from falling off during the movement and provide a guiding effect. The movable clamping block 4 quickly centers and clamps the titanium alloy part body 6. Then, the hand wheel is turned to drive the threaded rod 18 to rotate, and the threaded rod 18 drives the U-shaped rod 17 to move to an appropriate position. Under the action of the light rod 19, it guides the movement of the U-shaped rod 17 and starts the second electric push rod 10. The second electric push rod 10 pushes the pressing block 8 to move and fits with the surface of the titanium alloy part body 6. Under the action of the protective pad 16, the pressure block 8 is prevented from causing friction and wear to the titanium alloy part body 6, thereby reducing losses. Then, the second electric push rod 10 applies pressure to the titanium alloy part body 6. Under the induction of the pressure sensor 9, the pressure size is determined to test the fatigue strength of the titanium alloy part body 6 at different positions. Then, the transparent glass 20 is closed. Under the action of the sealing strip 21, the tightness of the connection between the transparent glass 20 and the protective box 1 is improved, and the airtightness is improved. The blower 11 is started, and the heating tube 13 heats the inside of the protective box 1. Under the induction of the temperature sensor 14, the internal temperature is controlled. Under the action of the pipe 12, the hot air is circulated inside the protective box 1 to prevent large temperature differences in different areas. The titanium alloy part body 6 can be heated at all locations at the same time, and the mechanical properties of the titanium alloy part body 6 under different temperature conditions can be effectively tested. The test is extensive and the practical performance is good.

[0033] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A titanium alloy part fatigue test device, comprising a protective box (1), characterized in that: The top surface of the inner wall of the protective box (1) is fixedly connected to a first electric push rod (2), the bottom end of the first electric push rod (2) is fixedly connected to a fork block (3), the outer side of the fork block (3) is slidably connected to a movable clamping block (4), the outer side of the movable clamping block (4) is slidably connected to a guide rail (5), one end of the movable clamping block (4) is fitted with a titanium alloy part body (6), the outer side of the titanium alloy part body (6) is fitted with a fixed clamping block (7), the outer side of the titanium alloy part body (6) is fitted with a pressure block (8), the interior of the pressure block (8) is inlaid with a pressure sensor (9), and one side of the pressure block (8) is fixedly connected to a second electric push rod (10).

2. The titanium alloy parts fatigue testing device according to claim 1, characterized in that: A blower (11) is fixedly connected to the outside of the protection box (1), a pipe (12) is fixedly connected to one side of the blower (11), a heating pipe (13) is embedded on the top surface of the inner wall of the protection box (1), and a temperature sensor (14) is fixedly connected to the upper inner wall of the protection box (1).

3. The titanium alloy parts fatigue testing device according to claim 1, characterized in that: The guide rail (5) is internally slidably connected to a limit block (15), and one side of the limit block (15) is fixedly connected to the outer side of the movable clamping block (4).

4. The titanium alloy parts fatigue testing device according to claim 1, characterized in that: A protective pad (16) is fixedly connected to the inner side of the pressing block (8), and the material of the protective pad (16) is rubber.

5. The titanium alloy parts fatigue testing device according to claim 1, characterized in that: One end of the second electric push rod (10) is fixedly connected to a U-shaped rod (17), and the lower part of the U-shaped rod (17) is spirally connected to a threaded rod (18).

6. The titanium alloy parts fatigue testing device according to claim 5, characterized in that: A polished rod (19) is inserted and connected to the lower portion of the U-shaped rod (17), and both ends of the polished rod (19) are fixedly connected to the inner wall of the protective box (1).

7. The titanium alloy parts fatigue testing device according to claim 1, characterized in that: The interior of the protective box (1) is slidably connected to a transparent glass (20), and the outer side of the transparent glass (20) is inlaid with a sealing strip (21).

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