Tensile testing machine for steel forging
By designing a tensile testing machine for steel forging, and utilizing the combination of electric push rods and hydraulic cylinders, the steel was centrally clamped and positioned, solving the problem of bending stress caused by improper fixing of the steel during tensile testing and improving the accuracy of the test.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-07
AI Technical Summary
During tensile testing, steel is difficult to fix effectively, which causes bending stress to affect the accuracy of the test results.
A tensile testing machine for steel forging was designed, including a worktable, a gantry frame, a hydraulic cylinder, a clamping frame, an electric push rod, a disc, a connecting frame, clamping blocks, a guiding device, and a protective device. Through the cooperation of the electric push rod and the hydraulic cylinder, the steel is clamped and positioned in the center, thus achieving accurate tensile testing.
This ensures the accuracy of steel in tensile tests, avoids bending stress, and improves the reliability of test results.
Smart Images
Figure CN224095546U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of steel processing, and in particular to a tensile testing machine for steel forging. Background Technology
[0002] Steel is an alloy composed of iron and carbon, and usually contains other elements such as manganese, silicon, sulfur and phosphorus. The addition of these elements can change the properties of steel. Depending on its chemical composition, microstructure and production process, steel can be divided into many types, including but not limited to carbon steel, alloy steel, tool steel and stainless steel.
[0003] Steel forging is a processing method that uses pressure to plastically deform metal materials, thereby obtaining the desired shape, size, and specific properties. Forging can improve the internal structure of metals and enhance their mechanical properties, such as strength and toughness. After steel is forged, it needs to undergo tensile testing. Tensile testing can reveal the mechanical properties of steel, such as tensile strength, yield strength, elongation, and reduction of area, which are crucial for ensuring the quality and safety of the final product.
[0004] However, when steel is subjected to tensile testing, it cannot be properly fixed. If the specimen is not correctly aligned, it may cause bending stress instead of pure axial tensile stress, affecting the test results. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a tensile testing machine for steel forging that ensures the center clamping and positioning of steel by setting this device, thereby guaranteeing the accuracy of its tensile test.
[0006] This utility model discloses a tensile testing machine for steel forging, comprising a worktable, a gantry frame, a hydraulic cylinder, two sets of clamping frames, two sets of electric push rods, two sets of discs, four sets of connecting frames, four sets of clamping blocks, a controller, two sets of guiding devices, and a protective device. The gantry frame is installed at the top of the worktable, the hydraulic cylinder is installed at the top of the gantry frame, the two sets of clamping frames are respectively installed at the top of the worktable and the output end of the hydraulic cylinder, and the two sets of clamping frames are positioned correspondingly. The protective device is installed at the front end of the gantry frame, the two sets of electric push rods are respectively installed at the inner ends of the two sets of clamping frames, the two sets of discs are respectively installed at the output ends of the two sets of electric push rods, the four sets of connecting frames are respectively positioned corresponding to the output ends of the two sets of electric push rods, the two sets of guiding devices are respectively installed inside the two sets of clamping frames, the four sets of clamping blocks are respectively installed at the bottom ends of the four sets of connecting frames, and the four sets of clamping blocks are positioned corresponding to the two sets of guiding devices. The controller is installed on the right front side of the top of the worktable, and the controller is electrically connected to the hydraulic cylinder and the two sets of electric push rods.
[0007] Preferably, the guiding device is configured as two sets of guide plates, which are installed obliquely on the lower side of the clamping frame. The outer ends of the two sets of clamping blocks are all set as inclined surfaces, and the inclined surfaces of the two sets of clamping blocks are slidably connected to the two sets of guide plates.
[0008] Preferably, it also includes eight sets of limiting blocks, which are respectively installed in the front and rear ends of the two sets of clamping frames. The front and rear ends of the four sets of clamping blocks are provided with sliding grooves, and the eight sets of limiting blocks are slidably connected to the eight sets of sliding grooves of the four sets of clamping blocks.
[0009] Preferably, it also includes two sets of connecting plates and two sets of first T-blocks. The two sets of connecting plates are respectively installed on the left and right ends of the upper clamping frame, and the two sets of first T-blocks are respectively installed on the outer ends of the two sets of connecting plates. T-slots are provided on the left and right ends of the portal frame, and the two sets of first T-blocks slide in the two sets of T-slots of the portal frame.
[0010] Preferably, the protective device includes a transparent protective panel, a handle, and a mounting mechanism. The transparent protective panel is mounted on the front end of the gantry frame via the mounting mechanism, and the handle is mounted on the lower side of the front end of the transparent protective panel.
[0011] Preferably, the installation mechanism is configured as two sets of second T-shaped blocks, which are respectively installed on the left and right sides of the rear end of the transparent protective plate. T-shaped grooves are provided on the left and right sides of the front end of the portal frame. The top of the two sets of T-shaped grooves are connected and have an opening. The two sets of second T-shaped blocks slide in the two sets of T-shaped grooves of the portal frame.
[0012] Preferably, it also includes two sets of card holders, which are rotatably installed on the front side of the middle of the left and right ends of the gantry frame, respectively, and the positions of the two sets of card holders correspond to the transparent protective plate.
[0013] Preferably, the inner end of the clamping block is provided with multiple sets of anti-slip teeth.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the steel is placed inside the four sets of clamping blocks, and then the two sets of electric push rods are opened. The two sets of electric push rods drive the two sets of discs to move inward. The two sets of discs drive the four sets of connecting frames and the four sets of clamping blocks to move. The four sets of clamping blocks extend out under the limit of the two sets of guiding devices to clamp and fix the steel. Then the hydraulic cylinder is opened, and the hydraulic cylinder drives the upper clamping frame to move upward, thereby performing a tensile test on the steel. By setting this device, the center clamping and positioning of the steel can be ensured, thus ensuring the accuracy of its tensile test. Attached Figure Description
[0015] Figure 1 This is a first-view structural schematic diagram of the present invention;
[0016] Figure 2 This is a second-view structural schematic diagram of the present invention;
[0017] Figure 3This is an enlarged cross-sectional schematic diagram of the clamping frame;
[0018] Figure 4 yes Figure 1 A magnified structural diagram of A in the middle;
[0019] Figure 5 yes Figure 2 A magnified structural diagram of C;
[0020] The following are labels in the attached diagram: 1. Workbench; 2. Gantry frame; 3. Hydraulic cylinder; 4. Clamping frame; 5. Electric push rod; 6. Disc; 7. Connecting frame; 8. Clamping block; 9. Controller; 10. Guide plate; 11. Limiting block; 12. Connecting plate; 13. First T-block; 14. Transparent protective plate; 15. Handle; 16. Second T-block; 17. Card seat; 18. Anti-slip teeth. Detailed Implementation
[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.
[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0024] like Figures 1 to 5As shown, this utility model discloses a tensile testing machine for steel forging, comprising a worktable 1, a gantry frame 2, a hydraulic cylinder 3, two sets of clamping frames 4, two sets of electric push rods 5, two sets of discs 6, four sets of connecting frames 7, four sets of clamping blocks 8, a controller 9, two sets of guiding devices, and a protective device. The gantry frame 2 is installed at the top of the worktable 1, the hydraulic cylinder 3 is installed at the top of the gantry frame 2, the two sets of clamping frames 4 are respectively installed at the top of the worktable 1 and the output end of the hydraulic cylinder 3, the two sets of clamping frames 4 are positioned correspondingly, and the protective device is installed on the gantry frame. At the front end of frame 2, two sets of electric push rods 5 are respectively installed inside the two sets of clamping frames 4, two sets of discs 6 are respectively installed at the output ends of the two sets of electric push rods 5, four sets of connecting frames 7 are respectively positioned corresponding to the output ends of the two sets of electric push rods 5, two sets of guiding devices are respectively installed inside the two sets of clamping frames 4, four sets of clamping blocks 8 are respectively installed at the bottom ends of the four sets of connecting frames 7, and the four sets of clamping blocks 8 are respectively positioned corresponding to the two sets of guiding devices. Controller 9 is installed on the right front side of the top of workbench 1, and controller 9 is electrically connected to hydraulic cylinder 3 and two sets of electric push rods 5.
[0025] The steel is placed inside the four sets of clamping blocks 8. Then, the two sets of electric push rods 5 are opened, which drive the two sets of discs 6 to move inward. The two sets of discs 6 then drive the four sets of connecting frames 7 and the four sets of clamping blocks 8 to move. The four sets of clamping blocks 8 extend out under the limit of the two sets of guide devices to clamp and fix the steel. Then, the hydraulic cylinder 3 is opened, which drives the upper clamping frame 4 to move upward, thereby performing a tensile test on the steel. By setting up this equipment, the center clamping and positioning of the steel can be ensured, thus ensuring the accuracy of its tensile test.
[0026] As a preferred embodiment of the above, the guiding device is configured as two sets of guide plates 10, which are inclinedly installed on the lower side of the clamping frame 4. The outer ends of the two sets of clamping blocks 8 are all configured as inclined surfaces, and the inclined surfaces of the two sets of clamping blocks 8 are slidably connected to the two sets of guide plates 10.
[0027] By setting guide plates 10, the two sets of connecting frames 7 drive the two sets of clamping blocks 8 to move. The two sets of clamping blocks 8 extend outward under the guidance of the two sets of guide plates 10, which serves to guide the two sets of clamping blocks 8.
[0028] As a preferred embodiment of the above, it further includes eight sets of limiting blocks 11, which are respectively installed in the front and rear ends of the two sets of clamping frames 4. The front and rear ends of the four sets of clamping blocks 8 are provided with sliding grooves, and the eight sets of limiting blocks 11 are slidably connected to the eight sets of sliding grooves of the four sets of clamping blocks 8.
[0029] By setting the limit block 11, the stability of the clamping block 8 during movement can be ensured.
[0030] As a preferred embodiment of the above, it further includes two sets of connecting plates 12 and two sets of first T-shaped blocks 13. The two sets of connecting plates 12 are respectively installed on the left and right ends of the upper clamping frame 4, and the two sets of first T-shaped blocks 13 are respectively installed on the outer ends of the two sets of connecting plates 12. T-shaped grooves are provided on the left and right ends of the portal frame 2, and the two sets of first T-shaped blocks 13 slide in the two sets of T-shaped grooves of the portal frame 2.
[0031] By setting up the connecting plate 12 and the first T-block 13, when the upper clamping frame 4 moves upward to perform a tensile test on the steel, the two sets of first T-blocks 13 slide in the two sets of T-slots of the portal frame 2, which can ensure the stability of the upper clamping frame 4 as it rises.
[0032] As a preferred embodiment of the above, the protective device includes a transparent protective plate 14, a handle 15 and a mounting mechanism. The transparent protective plate 14 is mounted on the front end of the gantry frame 2 through the mounting mechanism, and the handle 15 is mounted on the lower side of the front end of the transparent protective plate 14.
[0033] By setting up a transparent protective plate 14, a handle 15, and an installation mechanism, when the steel is subjected to tensile testing, the transparent protective plate 14 is pulled down by the handle 15 to provide protection and prevent the steel from breaking during the tensile process and causing injury to the workers.
[0034] As a preferred embodiment of the above, the installation mechanism is configured as two sets of second T-shaped blocks 16, which are respectively installed on the left and right sides of the rear end of the transparent protective plate 14. T-shaped grooves are provided on the left and right sides of the front end of the portal frame 2. The top ends of the two sets of T-shaped grooves are connected and have openings. The two sets of second T-shaped blocks 16 slide in the two sets of T-shaped grooves of the portal frame 2.
[0035] By setting a second T-block 16, the transparent protective plate 14 is slid by the handle 15. The two sets of second T-blocks 16 slide on the gantry frame 2, which facilitates the sliding operation of the transparent protective plate 14.
[0036] As a preferred embodiment of the above, it also includes two sets of card holders 17, which are rotatably installed on the front side of the middle of the left and right ends of the portal frame 2, respectively, and the two sets of card holders 17 correspond to the positions of the transparent protective plate 14.
[0037] By setting the card holders 17, when the transparent protective plate 14 moves upward to the designated position, the two sets of card holders 17 are rotated and rotated forward. The two sets of card holders 17 then engage with the bottom of the transparent protective plate 14, thereby supporting and fixing the transparent protective plate 14.
[0038] As a preferred embodiment of the above embodiment, the inner end of the clamping block 8 is provided with a plurality of anti-slip teeth 18;
[0039] By setting anti-slip teeth 18, the friction between the clamping block 8 and the steel can be increased, thereby improving its fixing effect.
[0040] This utility model discloses a tensile testing machine for steel forging. During operation, the steel is first placed inside four sets of clamping blocks 8. Then, two sets of electric push rods 5 are activated, causing two sets of discs 6 to move inward. These discs 6, in turn, move four sets of connecting frames 7 and four sets of clamping blocks 8. The clamping blocks 8, limited by two sets of guide plates 10, extend to clamp and fix the steel. Then, the handle 15 drives the transparent protective plate 14 downward to the top of the worktable 1. Finally, the hydraulic cylinder 3 is activated, causing the upper clamping frame 4 to move upward, thus performing a tensile test on the steel.
[0041] The tensile testing machine for steel forging of this utility model has common mechanical installation, connection and setting methods, and can be implemented as long as it can achieve the beneficial effect. The hydraulic cylinder 3, electric push rod 5 and controller 9 of the tensile testing machine for steel forging of this utility model are purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual.
[0042] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A tensile testing machine for steel forging, characterized in that, The system includes a workbench (1), a gantry frame (2), a hydraulic cylinder (3), two sets of clamping frames (4), two sets of electric push rods (5), two sets of discs (6), four sets of connecting frames (7), four sets of clamping blocks (8), a controller (9), two sets of guiding devices and protective devices. The gantry frame (2) is installed on the top of the workbench (1), the hydraulic cylinder (3) is installed on the top of the gantry frame (2), the two sets of clamping frames (4) are respectively installed on the top of the workbench (1) and the output end of the hydraulic cylinder (3), the two sets of clamping frames (4) are positioned correspondingly, the protective devices are installed at the front end of the gantry frame (2), and the two sets of electric push rods (5) are connected to the workbench (1). The moving push rods (5) are respectively installed inside the two sets of clamping frames (4), the two sets of discs (6) are respectively installed at the output ends of the two sets of electric push rods (5), the four sets of connecting frames (7) are respectively positioned at the output ends of the two sets of electric push rods (5), the two sets of guiding devices are respectively installed inside the two sets of clamping frames (4), the four sets of clamping blocks (8) are respectively installed at the bottom ends of the four sets of connecting frames (7), the four sets of clamping blocks (8) are respectively positioned at the two sets of guiding devices, the controller (9) is installed on the right front side of the top of the workbench (1), and the controller (9) is electrically connected to the hydraulic cylinder (3) and the two sets of electric push rods (5).
2. The tensile testing machine for steel forging as described in claim 1, characterized in that, The guiding device is configured with two sets of guide plates (10), which are installed at an angle on the lower side of the clamping frame (4). The outer ends of the two sets of clamping blocks (8) are both set as inclined surfaces, and the inclined surfaces of the two sets of clamping blocks (8) are slidably connected to the two sets of guide plates (10).
3. The tensile testing machine for steel forging as described in claim 2, characterized in that, It also includes eight sets of limiting blocks (11), which are installed at the front and rear ends of the two sets of clamping frames (4) respectively. The front and rear ends of the four sets of clamping blocks (8) are provided with sliding grooves, and the eight sets of limiting blocks (11) are slidably connected to the eight sets of sliding grooves of the four sets of clamping blocks (8) respectively.
4. The tensile testing machine for steel forging as described in claim 3, characterized in that, It also includes two sets of connecting plates (12) and two sets of first T-shaped blocks (13). The two sets of connecting plates (12) are respectively installed on the left and right ends of the upper clamping frame (4), and the two sets of first T-shaped blocks (13) are respectively installed on the outer ends of the two sets of connecting plates (12). T-shaped grooves are provided on the left and right ends of the portal frame (2), and the two sets of first T-shaped blocks (13) slide in the two sets of T-shaped grooves of the portal frame (2).
5. A tensile testing machine for steel forging as described in claim 4, characterized in that, The protective device includes a transparent protective plate (14), a handle (15) and an installation mechanism. The transparent protective plate (14) is installed on the front end of the gantry frame (2) through the installation mechanism, and the handle (15) is installed on the lower side of the front end of the transparent protective plate (14).
6. A tensile testing machine for steel forging as described in claim 5, characterized in that, The installation mechanism is set as two sets of second T-shaped blocks (16). The two sets of second T-shaped blocks (16) are respectively installed on the left and right sides of the rear end of the transparent protective plate (14). T-shaped grooves are provided on the left and right sides of the front end of the portal frame (2). The top of the two sets of T-shaped grooves are connected and have openings. The two sets of second T-shaped blocks (16) slide in the two sets of T-shaped grooves of the portal frame (2).
7. A tensile testing machine for steel forging as described in claim 6, characterized in that, It also includes two sets of card holders (17), which are rotatably installed on the front side of the middle of the left and right ends of the portal frame (2), and the two sets of card holders (17) correspond to the position of the transparent protective plate (14).
8. A tensile testing machine for steel forging as described in claim 7, characterized in that, The inner end of the clamp (8) is provided with multiple sets of anti-slip teeth (18).