Spring fatigue detection device for compression spring production

Abstract

The utility model relates to the technical field of detection devices, and particularly discloses a spring fatigue detection device for compression spring production, which comprises a base, a top plate is fixedly mounted right above the base through a support rod, a cylinder is fixedly mounted on the top surface of the top plate, and a movable plate is arranged below the top plate. The end of an output shaft of the air cylinder and the middle of the movable plate are fixedly installed, two sets of symmetrical discs are arranged between the base and the movable plate, the lower disc is fixedly installed on the base through a supporting rod, the upper disc is fixedly installed on the movable plate through a supporting rod, and limiting openings are formed in the discs. According to the spring fatigue detection device for compression spring production, the top ends and the bottom ends of compression springs of different sizes can be clamped and limited, the stability of the compression springs in the repeated compression and release detection process is improved, and the applicability of the device is also improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of testing devices, and in particular relates to a spring fatigue testing device for compression spring production. Background Technology

[0002] The spring fatigue testing device used in compression spring production is a mechanical device used to evaluate the durability and fatigue life of compression springs during repeated compression and release processes. It simulates the actual working conditions of the spring and conducts multiple extension and contraction cycle loading tests to test the spring's ability to resist fatigue failure, thereby determining whether the spring quality is qualified and ensuring that the compression spring meets the corresponding usage standards and requirements.

[0003] In existing spring fatigue testing devices used in compression spring production, the springs are subjected to elastic force during repeated compression and release testing. The top and bottom ends of the springs are prone to shaking or displacement, which affects the stability of the test. This needs to be improved. Therefore, a spring fatigue testing device for compression spring production is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a spring fatigue testing device for compression spring production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a spring fatigue testing device for compression spring production, comprising a base, a top plate fixedly installed above the base by a support rod, a cylinder fixedly installed on the top surface of the top plate, a movable plate arranged below the top plate, the end of the cylinder output shaft fixedly installed in the middle of the movable plate, a disc arranged between the base and the movable plate, the disc having two symmetrical sets, the lower disc being fixedly installed to the base by a support rod, and the upper disc being fixedly installed to the movable plate by a support rod, each disc having a limit opening, and evenly distributed arc plates slidably arranged on the side of the disc at the limit opening, and a driving component arranged on the disc for driving multiple sets of arc plates to move horizontally simultaneously, moving closer or further apart from each other.

[0006] As a further description of the above solution: by setting up a base, top plate, cylinder, movable plate, disc, limit port, arc plate, and the cooperation between the driving components, it is possible to clamp and limit the top and bottom ends of compression springs of different sizes, which not only improves the stability of the compression springs during repeated compression and release detection, but also improves the applicability of the device.

[0007] Preferably, the driving component includes a knob rotatably mounted on the disc, a first bevel gear rotatably mounted inside the disc, a second bevel gear rotatably mounted evenly distributed inside the disc, a lead screw rotatably mounted inside the disc, and a movable rod slidably mounted evenly distributed inside the disc.

[0008] As a further description of the above scheme: the components within the drive unit are described.

[0009] Preferably, the knob shaft end is fixedly installed with the shaft end of the first bevel gear, the number of sets of the second bevel gear, the lead screw, and the movable rod is the same as the number of sets of the arc plate, the second bevel gear is meshed and connected to the first bevel gear, the shaft end of the lead screw is fixedly installed with the shaft end of the second bevel gear, the movable rod is threadedly connected to the lead screw, and the movable rod is fixedly installed with the arc plate.

[0010] As a further description of the above scheme: the positional relationships between the components within the drive unit are described.

[0011] Preferably, a pad is laid on the side of the arc plate, and the pad is made of rubber.

[0012] As a further description of the above solution: the side of the arc plate is covered with a rubber pad, which can not only further improve the stability of the arc plate in clamping the top and bottom edges of the compression spring, but also protect the top and bottom edges of the compression spring during clamping.

[0013] Preferably, damping is provided between the knob and the disc.

[0014] As a further description of the above solution: a damping mechanism is provided between the knob and the disc, which can keep the knob stable during the repeated compression and release detection of the compression spring, thereby maintaining the stability of the arc plate clamping the top and bottom edges of the compression spring and ensuring the stability of the compression spring fatigue detection.

[0015] Preferably, a controller is provided on the base, and the controller is electrically connected to the cylinder.

[0016] As a further description of the above solution: the controller is configured to automatically control the fatigue detection process of the compression spring.

[0017] In summary, compared with the prior art, the beneficial effects of this utility model are: by setting up a base, top plate, cylinder, movable plate, disc, limiting port, arc plate, and the cooperative work between the driving components, it is possible to clamp and limit the top and bottom ends of compression springs of different sizes, which not only improves the stability of the compression spring during repeated compression and release detection, but also improves the applicability of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a bottom view of the structure of this utility model;

[0020] Figure 3 This is a structural diagram of the top of the disc of this utility model;

[0021] Figure 4 This is a structural diagram of the bottom of the disc of this utility model;

[0022] Figure 5 This is a structural diagram of the arc plate and driving component of this utility model.

[0023] Legend:

[0024] 1. Base; 2. Top plate; 3. Cylinder; 4. Movable plate; 5. Disc; 6. Limiting port; 7. Arc plate; 8. Drive component; 81. Knob; 82. Bevel gear one; 83. Bevel gear two; 84. Lead screw; 85. Movable rod. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 This utility model provides a technical solution:

[0027] A spring fatigue testing device for compression spring production includes a base 1. A top plate 2 is fixedly installed on the top of the base 1 via a support rod. A cylinder 3 is fixedly installed on the top surface of the top plate 2. A movable plate 4 is arranged below the top plate 2. The output shaft end of the cylinder 3 is fixedly installed in the middle of the movable plate 4. A disc 5 is arranged between the base 1 and the movable plate 4. Two sets of discs 5 are arranged symmetrically. The lower disc 5 is fixedly installed to the base 1 via a support rod, and the upper disc 5 is fixedly installed to the movable plate 4 via a support rod. Each disc 5 has a limit port 6. Arc plates 7 are evenly distributed and slidably arranged on the side of the limit port 6 on the disc 5. A driving component 8 is provided on the disc 5 for driving multiple sets of arc plates 7 to move horizontally simultaneously, moving closer or further apart from each other. The driving component 8 includes a knob 81 rotatably mounted on a disc 5, a first bevel gear 82 rotatably mounted inside the disc 5, a second bevel gear 83 rotatably mounted evenly distributed inside the disc 5, a lead screw 84 rotatably mounted inside the disc 5, and movable rods 85 slidably mounted evenly distributed inside the disc 5. The rotating shaft end of the knob 81 is fixedly installed with the rotating shaft end of the first bevel gear 82. The number of sets of the second bevel gear 83, the lead screw 84, and the movable rods 85 is the same as the number of sets of the arc plate 7. The second bevel gear 83 is meshed and connected to the first bevel gear 82. The rotating shaft end of the lead screw 84 is fixedly mounted with the rotating shaft end of the second bevel gear 83. The movable rods 85 are threadedly connected to the lead screw 84 and are fixedly mounted to the arc plate 7.

[0028] When using the spring fatigue testing device for compression spring production, the compression spring to be tested is placed between two sets of discs 5, with the top and bottom edges of the spring positioned within the limiting ports 6. The operator then rotates the knobs 81 on both sets of discs 5. The rotation of the knobs 81 drives the bevel gear 82, which is fixedly connected to them, to rotate. Since multiple bevel gears 83 are meshed and connected to bevel gear 82, the rotation of bevel gear 82 drives all bevel gears 83 to rotate synchronously. Each bevel gear 83 has a lead screw 84 fixedly connected to its shaft end. When the bevel gear 83 rotates, it drives the lead screw 84 to rotate. The movable rods 85 are threadedly connected to the lead screw 84 and are also fixedly installed on the arc plates 7. During the rotation of the lead screw 84, the movable rods 85 will move horizontally along the thread direction of the lead screw 84. Since all the lead screws 84 rotate synchronously, all the movable rods 85 can move horizontally at the same time, thereby driving all the arc plates 7 to move horizontally at the same time. When the knob 81 is turned to make the arc plates 7 move closer to each other, the arc plates 7 will gradually approach the top and bottom of the compression spring located in the limiting port 6 until they are in close contact with the spring and clamp and limit it.

[0029] After the spring is clamped and limited, the cylinder 3 on the top plate 2 is activated. As the output shaft of the cylinder 3 extends and retracts, the movable plate 4 moves up and down between the top plate 2 and the base 1. The repeated extension and retraction of the cylinder 3 realizes the repeated compression and release of the compression spring, and detects the fatigue of the spring.

[0030] This spring fatigue testing device for compression spring production can clamp and limit the top and bottom ends of compression springs of different sizes, which not only improves the stability of compression springs during repeated compression and release testing, but also improves the applicability of the device.

[0031] A pad is laid on the side of the arc plate 7, and the pad is made of rubber.

[0032] The side of the arc plate 7 is covered with a rubber pad. The friction of the rubber not only further improves the stability of the arc plate 7 in clamping the top and bottom edges of the compression spring, but also protects the top and bottom edges of the compression spring during clamping.

[0033] A damping mechanism is provided between the knob 81 and the disc 5;

[0034] A damping mechanism is provided between the knob 81 and the disc 5, which can keep the knob 81 stable during the repeated compression and release detection of the compression spring, thereby keeping the arc plate 7 stable in clamping the top and bottom edges of the compression spring, and ensuring the stability of the compression spring fatigue detection.

[0035] A controller is provided on the base 1, and the controller is electrically connected to the cylinder 3;

[0036] The controller can be set up to automatically control the fatigue detection process of compression springs.

[0037] Working principle:

[0038] When using the spring fatigue testing device for compression spring production, the compression spring to be tested is placed between two sets of discs 5, with the top and bottom edges of the spring positioned within the limiting ports 6. The operator then rotates the knobs 81 on both sets of discs 5. The rotation of the knobs 81 drives the bevel gear 82, which is fixedly connected to them, to rotate. Since multiple bevel gears 83 are meshed and connected to bevel gear 82, the rotation of bevel gear 82 drives all bevel gears 83 to rotate synchronously. Each bevel gear 83 has a lead screw 84 fixedly connected to its shaft end. When the bevel gear 83 rotates, it drives the lead screw 84 to rotate. The movable rods 85 are threadedly connected to the lead screw 84 and are also fixedly installed on the arc plates 7. During the rotation of the lead screw 84, the movable rods 85 will move horizontally along the thread direction of the lead screw 84. Since all the lead screws 84 rotate synchronously, all the movable rods 85 can move horizontally at the same time, thereby driving all the arc plates 7 to move horizontally at the same time. When the knob 81 is turned to make the arc plates 7 move closer to each other, the arc plates 7 will gradually approach the top and bottom of the compression spring located in the limiting port 6 until they are in close contact with the spring and clamp and limit it.

[0039] After the spring is clamped and limited, the cylinder 3 on the top plate 2 is activated. As the output shaft of the cylinder 3 extends and retracts, the movable plate 4 moves up and down between the top plate 2 and the base 1. The repeated extension and retraction of the cylinder 3 realizes the repeated compression and release of the compression spring, and detects the fatigue of the spring.

[0040] This spring fatigue testing device for compression spring production can clamp and limit the top and bottom ends of compression springs of different sizes, which not only improves the stability of compression springs during repeated compression and release testing, but also improves the applicability of the device.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A spring fatigue testing device for compression spring production, comprising a base (1), characterized in that, A top plate (2) is fixedly installed on the top of the base (1) by a support rod. A cylinder (3) is fixedly installed on the top surface of the top plate (2). A movable plate (4) is provided below the top plate (2). The output shaft end of the cylinder (3) is fixedly installed in the middle of the movable plate (4). A disc (5) is provided between the base (1) and the movable plate (4). Two sets of discs (5) are provided. The lower disc (5) is fixedly installed to the base (1) by a support rod. The upper disc (5) is fixedly installed to the movable plate (4) by a support rod. Each disc (5) has a limit port (6). The disc (5) has evenly distributed arc plates (7) slidably arranged on the side of the limit port (6). The disc (5) is provided with a driving component (8) for driving multiple sets of arc plates (7) to move horizontally at the same time, moving closer or further away from each other.

2. The spring fatigue testing device for compression spring production according to claim 1, characterized in that, The drive unit (8) includes a knob (81) rotatably mounted on the disc (5), a bevel gear one (82) rotatably mounted inside the disc (5), a bevel gear two (83) rotatably mounted evenly distributed inside the disc (5), a lead screw (84) rotatably mounted inside the disc (5), and a movable rod (85) slidably mounted evenly distributed inside the disc (5).

3. The spring fatigue testing device for compression spring production according to claim 2, characterized in that, The knob (81) is fixedly installed on the shaft end of the bevel gear one (82). The number of sets of the bevel gear two (83), the lead screw (84), and the movable rod (85) is the same as the number of sets of the arc plate (7). The bevel gear two (83) is meshed and connected to the bevel gear one (82). The shaft end of the lead screw (84) is fixedly installed on the shaft end of the bevel gear two (83). The movable rod (85) is threadedly connected to the lead screw (84) and is fixedly installed on the arc plate (7).

4. The spring fatigue testing device for compression spring production according to claim 1, characterized in that, The side of the arc plate (7) is covered with a pad, which is made of rubber.

5. The spring fatigue testing device for compression spring production according to claim 3, characterized in that, Damping is provided between the knob (81) and the disc (5).

6. The spring fatigue testing device for compression spring production according to claim 1, characterized in that, A controller is provided on the base (1), and the controller is electrically connected to the cylinder (3).

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