Fixing device for metal impact sample

Abstract

The utility model relates to the technical field of engineering, and discloses a fixer for a metal impact sample, which comprises an impact box, an impact hammer is arranged on the inner wall of the impact box, a fixing block is fixedly connected to the inner wall of the top end of the impact box, a connecting block is fixedly connected to the left end of the fixing block, and a sliding block is slidably connected to the inner wall of the connecting block. A connecting rod is hinged to the side wall of the sliding block through a hinge rod, a clamping plate is fixedly connected to the top end of the connecting rod, a limiting mechanism is arranged on the inner wall of the sliding block, a supporting frame is fixedly connected to the outer wall of the impact box, and a wedge block is elastically connected to the inner wall of the left end of the supporting frame through a positioning spring; the top end of the supporting frame is fixedly connected with a pointer. According to the clamp, the clamping plates, the connecting rods, the sliding blocks and the hinge rods are arranged, the clamping plates are close to or separated from one another, an extra tool is not needed to twist a bolt to adjust the clamp, and the clamp is simple and convenient in actual operation.

Description

Technical Field

[0001] The utility model relates to the field of engineering technology, in particular to a fixture for metal impact specimens. Background Art

[0002] Metal impact specimens are standardized samples used to evaluate the performance and behavior of metal materials under impact or impact loads. These specimens usually have standardized geometric shapes and sizes and are used for various impact tests to understand the response of materials under high-speed impact and dynamic loads. During the impact specimen process, in order to ensure the stability and position accuracy of the specimen during the test, a fixture is required.

[0003] In the prior art, there are the following defects: before using some existing metal impact specimens, some fixtures adjust the position of the fixture by means of bolts. In actual operation, tools are needed to twist the bolts multiple times, and the specimen cannot be fixed quickly. Secondly, before impact, the specimen needs to be placed in a low-temperature bath to reach a certain temperature for storage. However, due to the different steel types, temperatures, etc. of the existing impact specimens, the staff needs to take out the specimens from the low-temperature bath one by one for the impact process, which may cause errors in the impact order of the specimens by the staff and it is impossible to classify and arrange the impact specimens in advance. Therefore, a fixture for metal impact specimens is proposed to solve the above problems. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a fixture for metal impact specimens, aiming to improve the problem that the specimen cannot be fixed quickly in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a fixture for metal impact specimens, including an impact box, an impact hammer is arranged on the inner wall of the impact box, a fixing block is fixedly connected to the inner wall of the top end of the impact box, a connecting block is fixedly connected to the left end of the fixing block, a slider is slidably connected to the inner wall of the connecting block, a connecting rod is hinged to the side wall of the slider through a hinge rod, a clamping plate is fixedly connected to the top end of the connecting rod, and a limiting mechanism is arranged in the inner wall of the slider.

[0006] As a further description of the above technical solution:

[0007] A support frame is fixedly connected to the outer wall of the impact box, a wedge block is elastically connected to the inner wall of the left end of the support frame through a positioning spring, a pointer is fixedly connected to the top end of the support frame, a storage tray is rotatably connected to the outer wall of the support frame, a marking plate is fixedly connected to the top end of the storage tray, and a shielding ring is fixedly connected to the outer wall of the impact box.

[0008] As a further description of the above technical solution:

[0009] The storage tray is in contact with the inner wall of the shielding ring. The left end inner wall of the support frame is fixedly connected to one end of the positioning spring, and the other end of the positioning spring is fixedly connected to the left end of the wedge block.

[0010] As a further description of the above technical solution:

[0011] The wedge block is slidably connected to the inner wall of the support frame, and the wedge block is inserted into the inner wall of the storage tray.

[0012] As a further description of the above technical solution:

[0013] The limiting mechanism includes a limiting block. The limiting block is slidably connected to the inner wall of the slider. The left end of the limiting block is elastically connected to the slider through a return spring. The top end of the limiting block is fixedly connected to a fixing plate, and the fixing plate penetrates and is slidably connected to the inner wall of the slider.

[0014] As a further description of the above technical solution:

[0015] The left end of the limiting block is fixedly connected to one end of the return spring, and the other end of the return spring is fixedly connected to the left end inner wall of the slider. The limiting block is inserted into the inner wall of the connecting block.

[0016] As a further description of the above technical solution:

[0017] One end of the side wall of the slider is hinged to one end of a hinge rod, and the other end of the hinge rod is hinged to the outer wall of a connecting rod.

[0018] As a further description of the above technical solution:

[0019] The connecting rod penetrates and is slidably connected to the inner wall of the fixed block, and the clamping plate is slidably connected to the top end of the fixed block.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, by arranging the clamping plates, the connecting rod, the slider and the hinge rod, the clamping plates can be made to approach or separate from each other, without the need to use additional tools to twist bolts for adjusting the fixture, which is simple and convenient in actual operation.

[0022] 2. In the utility model, by arranging the storage tray, the specimens can be placed in the notch for sequential classification. By using the color of the marking plate to correspond to the specimens at the corresponding temperature, the impact specimens can be classified, placed, identified and retrieved in an orderly manner, improving the detection efficiency and reducing the errors caused by disorderly placement at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is an overall three-dimensional schematic diagram of the impact box of a fixer for metal impact specimens proposed by the present utility model;

[0024] Figure 2 Overall three-dimensional schematic diagram of the fixing block of a holder for metal impact specimens proposed by the present utility model;

[0025] Figure 3 Overall sectional schematic diagram of the fixing block of a holder for metal impact specimens proposed by the present utility model;

[0026] Figure 4 Overall sectional schematic diagram of the slider of a holder for metal impact specimens proposed by the present utility model;

[0027] Figure 5 Exploded schematic diagram of the support frame and storage tray of a holder for metal impact specimens proposed by the present utility model;

[0028] Figure 6 Overall sectional schematic diagram of the support frame of a holder for metal impact specimens proposed by the present utility model.

[0029] Legend description:

[0030] 1. Impact box; 2. Impact hammer; 3. Fixing block; 4. Connecting block; 5. Slider; 6. Hinge rod; 7. Connecting rod; 8. Clamping plate; 9. Return spring; 10. Limiting block; 11. Fixing plate; 12. Support frame; 13. Positioning spring; 14. Wedge block; 15. Pointer; 16. Storage tray; 17. Marking plate; 18. Shielding ring. Specific implementation manners

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] Refer to Figures 1 - 3, an embodiment provided by the present utility model: A fixture for metal impact specimens, including an impact box 1. An impact hammer 2 is provided on the inner wall of the impact box 1. The impact hammer 2 is a tool specifically used to apply impact force, usually used to test and evaluate the response and performance of materials, structures or equipment under impact loads. The impact hammer 2 is rotated by a driving device of an existing device to impact the specimen. This is prior art and will not be elaborated here. A fixing block 3 is fixedly connected to the top inner wall of the impact box 1. There is an opening in the middle of the fixing block 3, which can allow the impact hammer 2 to pass through the opening and conduct an impact test on the specimen. This is prior art and will not be elaborated here. A connecting block 4 is fixedly connected to the left end of the fixing block 3. A slider 5 is slidably connected to the inner wall of the connecting block 4. A connecting rod 7 is hinged to the side wall of the slider 5 through a hinge rod 6. The connecting rod 7 mainly connects the hinge rod 6 and the clamping plate 8. When the connecting rod 7 moves, it will drive the clamping plate 8 to move. The top end of the connecting rod 7 is fixedly connected to the clamping plate 8. By making the clamping plates 8 approach each other, the impact specimen can be fixed to help improve the stability of the subsequent impact specimen. A limiting mechanism is provided on the inner wall of the slider 5.

[0033] Refer to Figures 1 - 5 With Figure 6 , a support frame 12 is fixedly connected to the outer wall of the impact box 1. The support frame 12 mainly supports and connects the storage tray 16. A wedge block 14 is elastically connected to the left inner wall of the support frame 12 through a positioning spring 13. The wedge block 14 has an inclined surface. When the inclined surface is squeezed, the wedge block 14 will slide along the inner wall of the slider 5. A pointer 15 is fixedly connected to the top end of the support frame 12. The position of the specimen required for the test can be judged through the pointer 15. A storage tray 16 is rotatably connected to the outer wall of the support frame 12. A plurality of notches are provided on the storage tray 16, and the specimens to be impacted can be placed in the notches in sequence. A marking plate 17 is fixedly connected to the top end of the storage tray 16. A shielding ring 18 is fixedly connected to the outer wall of the impact box 1. The shielding ring 18 can prevent the specimens from falling off during the rotation of the storage tray 16. The storage tray 16 contacts the inner wall of the shielding ring 18. One end of the positioning spring 13 is fixedly connected to the left inner wall of the support frame 12. When the wedge block 14 moves to the left, it will compress the positioning spring 13. When resetting, the elastic force of the positioning spring 13 is used to drive the wedge block 14 to reset. The other end of the positioning spring 13 is fixedly connected to the left end of the wedge block 14. The wedge block 14 is slidably connected to the inner wall of the support frame 12. The wedge block 14 is inserted into the inner wall of the storage tray 16. As Figure 5 shown, notches corresponding to the wedge block 14 are provided on the inner wall of the storage tray 16, and there are eight groups of such notches corresponding to the notches on the storage tray 16.

[0034] Refer to Figures 1 - 3, the limiting mechanism includes a limiting block 10. The limiting block 10 has an inclined surface. When the inclined surface is squeezed, the limiting block 10 will slide along the slider 5. The limiting block 10 is slidably connected to the inner wall of the slider 5. The left end of the limiting block 10 is elastically connected to the slider 5 through a return spring 9. The top end of the limiting block 10 is fixedly connected to a fixing plate 11, and the limiting block 10 can be horizontally moved by the fixing plate 11. The fixing plate 11 penetrates and is slidably connected to the inner wall of the slider 5. The left end of the limiting block 10 is fixedly connected to one end of the return spring 9. When the limiting block 10 moves to the left, the return spring 9 will be compressed. During reset, the elastic force of the return spring 9 is used to drive the limiting block 10 to reset. The other end of the return spring 9 is fixedly connected to the left end inner wall of the slider 5. The limiting block 10 is inserted into the inner wall of the connecting block 4. Multiple notches corresponding to the limiting block 10 are provided on the connecting block 4. The side wall of the slider 5 is hinged to one end of the hinge rod 6. Since the length of the hinge rod 6 is fixed, when the slider 5 drives one end of the hinge rod 6 to move to the left, the other end of the hinge rod 6 will drive the connecting rod 7 to move closer to each other. On the contrary, when the slider 5 drives one end of the hinge rod 6 to move to the right, the other end of the hinge rod 6 will drive the connecting rod 7 to move away from each other. The other end of the hinge rod 6 is hinged to the outer wall of the connecting rod 7. The connecting rod 7 penetrates and is slidably connected to the inner wall of the fixed block 3. A notch for the connecting rod 7 is provided on the fixed block 3, which enables the connecting rod 7 to horizontally move along the inner wall of the fixed block 3. An opening corresponding to the hinge rod 6 is provided on the fixed block 3, and the opening here does not contact the hinge rod 6. The clamping plate 8 is slidably connected to the top end of the fixed block 3.

[0035] Working principle: First, when preparing for the impact test, only need to take out the specimen from the low-temperature box. The specimen at different temperatures can be distinguished on the marking plate 17 in the form of colors such as red, orange, yellow, green, cyan, and blue. The specimens can be arranged clockwise on the notches of the storage tray 16 from high temperature to low temperature. Subsequently, by rotating the storage tray 16 clockwise, the inner wall notch of the storage tray 16 squeezes the inclined surface of the wedge block 14, causing the wedge block 14 to move to the left and compress the positioning spring 13. When the next wedge block 14 coincides with the notch on the storage tray 16, the reverse elastic force of the positioning spring 13 is used to drive the wedge block 14 to reset to the right, making the wedge block 14 inserted into the inner wall of the storage tray 16 and generating a jerky feeling during the rotation process, so that the pointer 15 accurately coincides with the corresponding notch of the storage tray 16. Then take out the specimen in the notch of the storage tray 16 corresponding to the pointer 15 for the test.

[0036] When the sample needs to be fixed, just place the sample between the two sets of clamping plates 8. Then manually move the slider 5 to move the articulated rod 6 to the left, so that the articulated rod 6 drives the connecting rod 7 and the clamping plate 8 to approach each other, and the clamping plate 8 fixes the sample to ensure the stability of the impact. When the slider 5 moves to the left, the notch of the connecting block 4 will squeeze the inclined surface of the limiting block 10, so that the limiting block 10 enters the inner wall of the slider 5 and compresses the return spring 9. When the limiting block 10 coincides with the notch of another connecting block 4, the reverse elastic force of the return spring 9 is used to eject the clamping plate 8 from the inner wall of the slider 5, so that the limiting block 10 is inserted into the notch of the connecting block 4 to unidirectionally limit the entire slider 5.

[0037] When it is necessary to release the fixation of the sample, just move the fixing plate 11 to the left to make the fixing plate 11 drive the limiting block 10 to be received into the slider 5. Then move the slider 5 to the right to drive the articulated rod 6 to move, so that the articulated rod 6 drives the connecting rod 7 and the clamping plate 8 to separate. Finally, release the fixing plate 11, and the reverse elastic force of the return spring 9 is used to drive the limiting block 10 and the fixing plate 11 to reset.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A holder for a metal impact specimen, comprising an impact box (1), characterized in that: An impact hammer (2) is arranged on the inner wall of the impact box (1), a fixing block (3) is fixedly connected to the inner wall at the top end of the impact box (1), a connecting block (4) is fixedly connected to the left end of the fixing block (3), a slider (5) is slidably connected to the inner wall of the connecting block (4), a connecting rod (7) is hingedly connected to the side wall of the slider (5) via a hinge rod (6), a clamping plate (8) is fixedly connected to the top end of the connecting rod (7), and a limiting mechanism is arranged on the inner wall of the slider (5).

2. A metal impact specimen holder according to claim 1, characterized in that: The outer wall of the impact box (1) is fixedly connected to a support frame (12), the inner wall of the left end of the support frame (12) is elastically connected to a wedge (14) via a positioning spring (13), the top of the support frame (12) is fixedly connected to a pointer (15), the outer wall of the support frame (12) is rotatably connected to a storage tray (16), the top of the storage tray (16) is fixedly connected to a marking plate (17), and the outer wall of the impact box (1) is fixedly connected to a shielding ring (18).

3. A metal impact specimen holder according to claim 2, characterized in that: The storage tray (16) contacts the inner wall of the shielding ring (18), the inner wall of the left end of the support frame (12) is fixedly connected to one end of the positioning spring (13), and the other end of the positioning spring (13) is fixedly connected to the left end of the wedge block (14).

4. A metal impact specimen holder according to claim 2, characterized in that: The wedge block (14) is slidably connected to the inner wall of the support frame (12), and the wedge block (14) is inserted into the inner wall of the storage tray (16).

5. A metal impact specimen holder according to claim 1, characterized in that: The limiting mechanism comprises a limiting block (10), the limiting block (10) being slidably connected to the inner wall of the slider (5), the left end of the limiting block (10) being elastically connected to the slider (5) via a return spring (9), the top end of the limiting block (10) being fixedly connected to a fixing plate (11), the fixing plate (11) penetrating through and being slidably connected to the inner wall of the slider (5).

6. A metal impact specimen holder according to claim 5, characterized in that: The left end of the limit block (10) is fixedly connected to one end of the return spring (9), the other end of the return spring (9) is fixedly connected to the inner wall of the left end of the slider (5), and the limit block (10) is plugged into the inner wall of the connecting block (4).

7. A metal impact specimen holder according to claim 1, characterized in that: The side wall of the sliding block (5) is hinged to one end of the hinged rod (6), and the other end of the hinged rod (6) is hinged to the outer wall of the connecting rod (7).

8. A metal impact specimen holder according to claim 1, characterized in that: The connecting rod (7) penetrates through and is slidably connected to the inner wall of the fixing block (3), and the clamping plate (8) is slidably connected to the top end of the fixing block (3).

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