A multi-station parallel high-frequency fatigue testing machine

Abstract

The utility model discloses a kind of multi-station parallel type high-frequency fatigue testing machine, belong to fatigue test equipment technical field, including protective shell, fatigue test assembly, joint clamping mechanism and fixed mechanism, joint clamping mechanism includes drive assembly, rotating column, toothed clamping block one and toothed clamping block two;Drive assembly drives toothed clamping block two, and executes opposite or apart movement through rotating column linkage toothed clamping block one, realizes multi-station parallel synchronous clamping, fixed mechanism includes clamping block and locking assembly;Locking assembly realizes the quick fixing or release to fatigue test assembly by driving the radial movement of clamping block.The utility model solves the problem that the multi-station clamping efficiency is low, synchronization is poor and fatigue test assembly replacement is complex in prior art, with simple structure, clamping efficiency is high, while it is convenient to quickly replace test assembly, equipment utilization is high Advantageous effect.

Description

Technical Field

[0001] This utility model relates to the field of fatigue testing equipment technology, and in particular to a multi-station parallel high-frequency fatigue testing machine. Background Technology

[0002] Fatigue testing machines are essential equipment for determining the fatigue strength of materials or structural components under cyclic loading. In modern industrial production, to improve testing efficiency and shorten research and development cycles, multi-station fatigue testing machines have been developed, allowing multiple workpieces to be tested simultaneously.

[0003] Existing multi-station testing machines require separate clamping mechanisms for each station when clamping multiple workpieces. For example, each station may need an independent cylinder, hydraulic cylinder, or electric gripper. Alternatively, a manual method may be used, where operators use tools to lock and secure each workpiece individually.

[0004] The use of multiple independent clamping mechanisms not only complicates the overall structure of the testing machine and makes the control system cumbersome, but also results in high costs. Multiple independent drive sources make it difficult to achieve precise synchronous clamping or release, easily leading to deviations in the timing of actions and affecting the uniformity of testing and preparation efficiency. On the other hand, manually clamping each workpiece individually results in extremely low clamping efficiency, failing to meet the needs of high-throughput testing, and making it difficult to ensure that the initial clamping force on all workpieces remains consistent, potentially introducing testing errors.

[0005] How to design a high-frequency fatigue testing machine with a relatively simple structure, easy control, and capable of multi-station synchronous parallel clamping to improve clamping efficiency and clamping reliability is a technical problem that urgently needs to be solved in this field.

[0006] Therefore, this utility model proposes a multi-station parallel high-frequency fatigue testing machine to overcome the shortcomings of the prior art. Utility Model Content

[0007] In view of the problems of complex structure, cumbersome control, and difficulty in achieving synchronous clamping in the multi-station parallel high-frequency fatigue testing machine in the prior art, which leads to low clamping efficiency and insufficient clamping reliability, this utility model aims to provide a multi-station parallel high-frequency fatigue testing machine with an improved structure that can effectively solve the above problems.

[0008] This utility model provides a multi-station parallel high-frequency fatigue testing machine, including a protective shell and fatigue testing components disposed inside the protective shell.

[0009] The testing machine also includes a combined clamping mechanism, which is located inside the protective housing and is used to realize multi-station parallel clamping function.

[0010] The combined clamping mechanism has a fixed plate and a drive assembly, which includes an electric push rod and a moving plate. The housing of the electric push rod is fixedly connected to the fixed plate, and the output end of the electric push rod drives the moving plate.

[0011] The combined clamping mechanism also includes a rotating column, a toothed clamping block one, and a toothed clamping block two.

[0012] In terms of structural assembly, the toothed clamping block 2 is movably mounted on the moving plate, and the toothed clamping block 1 and the toothed clamping block 2 are connected by a rotating column.

[0013] When the drive assembly is working, the electric push rod drives the moving plate to move, and the moving plate then drives the toothed clamping block two to move. At the same time, through the transmission action of the rotating column, the toothed clamping block one is linked to perform the opposite direction of the toothed clamping block two to perform the opposite or opposite movement, thereby realizing the synchronous parallel clamping or release of multiple workpieces.

[0014] Preferably, the combined clamping mechanism further includes multiple fixed posts, which are fixedly connected to the movable plate. The fixed posts are arranged opposite to the toothed clamping block and are used to clamp the workpiece. When the toothed clamping block moves, it can cooperate with the fixed posts to clamp or release the workpiece.

[0015] Preferably, the testing machine also includes a fixing mechanism. The fixing mechanism is located inside the protective housing and is specifically designed for the detachable fixing of the fatigue testing components to facilitate maintenance or replacement of the fatigue testing components.

[0016] Furthermore, as a specific implementation of the fixing mechanism, the fixing mechanism includes a slotted circular block, two clamping blocks, and a locking assembly. The two clamping blocks are movably mounted on the slotted circular block and are used to clamp the fatigue test component from both sides. The locking assembly is used to drive the two clamping blocks to move closer to or separate from each other to perform locking or releasing actions.

[0017] Furthermore, the locking assembly includes a fastening post and a cylinder. The fastening post passes between two clamping blocks, and the cylinder is fitted onto the fastening post and abuts against the two clamping blocks. The cylinder has a wedge-shaped outer peripheral surface. When the fastening post moves along its axial direction, it can drive the cylinder, and the wedge-shaped outer peripheral surface of the cylinder can push the two clamping blocks to perform radial clamping or loosening movements.

[0018] Preferably, in order to achieve axial driving and locking of the fastening post, the fixing mechanism also includes a nut, which is threadedly connected to the fastening post. By tightening or loosening the nut, an axial tensile force can be applied to the fastening post to drive the locking assembly to lock or release the locking assembly.

[0019] Preferably, in order to guide and limit the movement of the clamping block, the fixing mechanism also includes a connecting column, one end of which is rotatably connected to the corresponding clamping block, while the other end of which is slidably connected to the groove of the slotted circular block to ensure that the clamping block moves smoothly.

[0020] Preferably, a top cover is provided on the top of the protective housing to facilitate the inspection of the internal mechanism and the replacement of fatigue testing components.

[0021] This utility model has the following beneficial effects: 1. This utility model, by setting up a combined clamping mechanism, uses a drive component to drive the moving plate, and uses a rotating column to link the toothed clamping block one and the toothed clamping block two to move towards or away from each other. This solves the problems of cumbersome operation, low efficiency and difficulty in ensuring synchronization when clamping multiple workpieces in the fatigue testing machine in the prior art. It achieves the technical effect of being able to clamp and release multiple workpieces in parallel synchronously at the same time, simplifying the operation process and significantly improving the efficiency of test preparation and the reliability of clamping.

[0022] 2. This utility model, by setting up a fixing mechanism, uses a locking component to drive two clamping blocks to clamp or loosen the fatigue testing component. This solves the problems in the prior art where the fatigue testing component is a vulnerable part, and its replacement process is complicated, time-consuming, and easily loosened and damaged during testing due to insecure fixing. It achieves the technical effect of quickly and conveniently replacing the fatigue testing component, and fixing it firmly and reliably, effectively preventing equipment damage, and improving equipment utilization and maintenance convenience.

[0023] 3. This utility model solves the problems of low overall operating efficiency and low equipment turnover rate of existing fatigue testing machines in multi-station testing scenarios by organically combining a high-efficiency parallel clamping mechanism with a convenient quick-release fixing mechanism. It achieves the technical effect of compact machine structure, clear function, high testing efficiency and high maintainability, and improved overall equipment performance. Attached Figure Description

[0024] Figure 1 This is a front view of a multi-station parallel high-frequency fatigue testing machine proposed in this utility model; Figure 2 This is a perspective view of a multi-station parallel high-frequency fatigue testing machine proposed in this utility model; Figure 3 This is a schematic diagram of a multi-station parallel high-frequency fatigue testing machine combined clamping mechanism proposed in this utility model; Figure 4 This is a schematic diagram of the fixing mechanism of a multi-station parallel high-frequency fatigue testing machine proposed in this utility model; Figure 5This is a partial structural exploded view of the fixing mechanism of a multi-station parallel high-frequency fatigue testing machine proposed in this utility model.

[0025] Legend: 1. Protective shell; 2. Combined clamping mechanism; 201. Fixing plate; 202. Rotating column; 203. Drive assembly; 2031. Electric push rod; 2032. Moving plate; 204. Toothed clamping block one; 205. Toothed clamping block two; 206. Fixing column; 3. Fixing mechanism; 301. Slotted round block; 302. Clamping block; 303. Locking assembly; 3031. Fastening column; 3032. Cylindrical column; 304. Nut; 305. Connecting column; 4. Fatigue testing assembly; 5. Top cover. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example: Please refer to Figures 1 to 5 This utility model provides a multi-station parallel high-frequency fatigue testing machine, which aims to solve the problems of low workpiece clamping efficiency and poor synchronization in the existing technology, as well as the complex structure and unreliable fixing of fatigue testing components.

[0028] like Figure 1 and Figure 2 As shown, a multi-station parallel high-frequency fatigue testing machine includes a protective shell 1, a fatigue testing component 4, a combined clamping mechanism 2, and a fixing mechanism 3 disposed within the protective shell 1. The fixing mechanism 3 is used to detachably fix the fatigue testing component 4, the combined clamping mechanism 2 is used to simultaneously clamp or release multiple workpieces to be tested, and a top cover 5 is provided on the top of the protective shell 1.

[0029] like Figure 1 , Figure 2 and Figure 3As shown, the combined clamping mechanism 2 is disposed within the protective shell 1. The combined clamping mechanism 2 includes a fixed plate 201, a drive assembly 203, a rotating column 202, a toothed clamping block one 204, and a toothed clamping block two 205. The drive assembly 203 includes an electric push rod 2031 and a moving plate 2032. The housing of the electric push rod 2031 is fixedly connected to the fixed plate 201, and the output end of the electric push rod 2031 is driven and connected to the moving plate 2032. The toothed clamping block two 205 is movably disposed on the moving plate 2032. The first clamping block 204 and the second toothed clamping block 205 are connected by a rotating column 202. The driving component 203 is used to drive the moving plate 2032 to move. The moving plate 2032 drives the second toothed clamping block 205 to move, and the first toothed clamping block 204 is linked by the rotating column 202 to perform opposite or opposite movements. The combined clamping mechanism 2 also includes a plurality of fixed columns 206. The fixed columns 206 are fixedly connected to the moving plate 2032. The first toothed clamping block 204 is arranged opposite to the fixed columns 206 for cooperating to clamp the workpiece.

[0030] like Figure 1 , Figure 4 and Figure 5 As shown, in this embodiment, a multi-station parallel high-frequency fatigue testing machine further includes a fixing mechanism 3, and the fixing mechanism 3 and the aforementioned fatigue testing component 4 form a specific detachable fixing fit and connection relationship. The fixing mechanism 3 will be described in detail below: The fixing mechanism 3 includes a slotted circular block 301, two clamping blocks 302 and a locking assembly 303. The two clamping blocks 302 are movably disposed on the slotted circular block 301 and are used to clamp the fatigue test assembly 4 from both sides. The locking assembly 303 is used to drive the two clamping blocks 302 to move closer to each other or separate.

[0031] Specifically, the locking assembly 303 includes a fastening post 3031 and a cylinder 3032. The fastening post 3031 passes between two clamping blocks 302, and the cylinder 3032 is fitted onto the fastening post 3031 and abuts against the two clamping blocks 302. When the fastening post 3031 moves axially, it drives the wedge-shaped outer peripheral surface of the cylinder 3032 to push the two clamping blocks 302 to perform radial movement.

[0032] To achieve locking, the fixing mechanism 3 also includes a nut 304, which is threadedly connected to the fastening post 3031. The nut 304 is used to drive the locking assembly 303 to lock by applying axial tension to the fastening post 3031.

[0033] To achieve the limiting function, the fixing mechanism 3 also includes a connecting column 305. One end of the connecting column 305 is rotatably connected to the clamping block 302, while the other end of the connecting column 305 is slidably connected to the groove of the slotted round block 301.

[0034] As a preferred embodiment, in order to achieve stable clamping of the workpiece, please refer to... Figure 3 The combined clamping mechanism 2 also includes multiple fixed columns 206, which are fixedly connected to the moving plate 2032. The toothed clamping block 204 is arranged opposite to the fixed column 206 and is used to clamp the workpiece. When the toothed clamping block 204 moves under the drive of the rotating column 202, the distance between it and the corresponding fixed column 206 changes, thereby achieving the clamping or loosening of the workpiece.

[0035] As another preferred embodiment, for ease of internal equipment maintenance and replacement of fatigue testing component 4, please refer to... Figure 1 and Figure 2 The protective shell 1 is provided with a top cover 5. The top cover 5 is connected to the main body of the protective shell 1 by means of hinges or buckles. Opening the top cover 5 exposes the fixing mechanism 3, which facilitates the disassembly and installation of the fatigue testing component 4.

[0036] Working principle: When multiple workpieces need to undergo fatigue testing, the multiple workpieces are placed in designated positions, and the combined clamping mechanism 2 is activated to achieve multi-station parallel clamping of the workpieces. First, the electric push rod 2031 is activated, and its output end drives the moving plate 2032 and the multiple fixed columns 206 on its upper end to move to the right, so that the toothed clamping block 205 moves in the opposite direction to the movement of the moving plate 2032. Under the action of tooth meshing, the toothed clamping block 204 moves in the opposite direction to the toothed clamping block 205 through the rotating column 202. The drive component 203 drives the mutual clamping or separation of multiple stations, realizing the parallel locking of multiple stations. The fixed plate 201 serves to fix the electric push rod 2031. Through the combined clamping mechanism 2, multiple workpieces to be tested can be stably clamped at the same time, improving the efficiency of testing. After repeated high-frequency fatigue tests on the testing machine, the fatigue testing component 4 will wear out and need to be replaced. First, open the top cover 5 on the protective shell 1, and turn the nut 304 upward. The nut 304 is used to prevent the fastening column 3031 from moving and plays a fastening role. Then, push the fastening column 3031 downward, which drives the two clamping blocks 302 to move in opposite directions through the cylinder 3032, thus unlocking the fatigue testing component 4. The connecting column 305 rotates in the slotted circular block 301, which plays a limiting role on the two clamping blocks 302. The fatigue testing component 4 can be replaced through the fixing mechanism 3, and it can be fixed and clamped by the locking component 303 to prevent damage and improve the utilization rate of the equipment.

Claims

1. A multi-station parallel high-frequency fatigue testing machine, comprising: Protective shell (1); And fatigue testing components (4), which are disposed inside the protective shell (1); Its characteristic is that it further includes: The combined clamping mechanism (2) is disposed inside the protective shell (1). The combined clamping mechanism (2) includes a fixing plate (201), a drive assembly (203), a rotating column (202), a toothed clamping block one (204), and a toothed clamping block two (205). The drive assembly (203) includes an electric push rod (2031) and a moving plate (2032). The housing of the electric push rod (2031) is fixedly connected to the fixed plate (201), and the output end of the electric push rod (2031) is driven to connect to the moving plate (2032). The toothed clamping block two (205) is movably disposed on the movable plate (2032), and the toothed clamping block one (204) and the toothed clamping block two (205) are connected by the rotating column (202). The drive assembly (203) is used to drive the moving plate (2032) to move. The moving plate (2032) drives the toothed clamping block two (205) to move, and through the rotating column (202) it links the toothed clamping block one (204) to perform opposite or opposite movements.

2. The multi-station parallel high-frequency fatigue testing machine according to claim 1, characterized in that, The combined clamping mechanism (2) also includes a plurality of fixed posts (206), which are fixedly connected to the moving plate (2032). The toothed clamping block (204) is arranged opposite to the fixed posts (206) and is used to clamp the workpiece.

3. The multi-station parallel high-frequency fatigue testing machine according to claim 1, characterized in that, Also includes: A fixing mechanism (3) is disposed inside the protective shell (1), and the fixing mechanism (3) is used to detachably fix the fatigue test assembly (4).

4. The multi-station parallel high-frequency fatigue testing machine according to claim 3, characterized in that, The fixing mechanism (3) includes a slotted circular block (301), two clamping blocks (302) and a locking assembly (303). The two clamping blocks (302) are movably disposed on the slotted circular block (301) and are used to clamp the fatigue test assembly (4) from both sides. The locking assembly (303) is used to drive the two clamping blocks (302) to move closer to or separate from each other.

5. A multi-station parallel high-frequency fatigue testing machine according to claim 4, characterized in that, The locking assembly (303) includes a fastening post (3031) and a cylinder (3032). The fastening post (3031) passes between the two clamping blocks (302). The cylinder (3032) is fitted onto the fastening post (3031) and abuts against the two clamping blocks (302). When the fastening post (3031) moves axially, it drives the wedge-shaped outer circumferential surface of the cylinder (3032) to push the two clamping blocks (302) to perform radial movement.

6. A multi-station parallel high-frequency fatigue testing machine according to claim 5, characterized in that, The fixing mechanism (3) further includes a nut (304) which is threaded to the fastening post (3031) and is used to drive the locking assembly (303) to lock by applying an axial tensile force to the fastening post (3031).

7. A multi-station parallel high-frequency fatigue testing machine according to claim 4, characterized in that, The fixing mechanism (3) further includes a connecting column (305), one end of which is rotatably connected to the clamping block (302), and the other end of which is slidably connected to the groove of the slotted round block (301).

8. A multi-station parallel high-frequency fatigue testing machine according to claim 1, characterized in that, The protective shell (1) is provided with a top cover (5).

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