Rivet joint tension testing device

Abstract

The utility model discloses a rivet joint tension testing device which comprises a testing device mounting plate. Two parallel linear guide rails are mounted on the testing device mounting plate; a guide rail sliding block is arranged on the linear guide rail; the guide rail sliding block is fixedly connected with the bottom plate, a side wall plate of the first connecting plate is fixedly connected with the output end of the electric cylinder, and a tension sensor is arranged between the side wall plate and the output end of the electric cylinder. An air cylinder is arranged above the first connecting plate, and the output end of the air cylinder is fixedly connected with a limiting rod; a rivet joint fixing plate is further fixedly arranged on the testing device mounting plate, and a rivet joint limiting groove with an opening in one side and communicated with the outside is formed in the rivet joint fixing plate. The riveting head limiting groove formed in the riveting head fixing plate is used for limiting the riveting head, the limiting rod is used for limiting the middle position of the steel wire rope, the electric cylinder provides power to enable the limiting rod to move towards one side, and the riveting strength between the riveting head and the steel wire rope is tested in combination with the tension sensor.

Description

TECHNICAL FIELD

[0001] The utility model relates to a riveting joint tension testing device belongs to riveting joint tension testing technical field. BACKGROUND

[0002] The safety belt is the very important passive safety system in the modern automobile safety system, and the safety belt buckle is the key part in the safety belt system. When the collision occurs, the commonly used safety belt buckle can generate the greater waist force to the passenger, the force can change along with the change of the body rigidity, and the change range is larger, and the excessive waist force can generate the greater harm to the passenger in the car. The micro waist energy absorption device in the patent with the public number CN 116001723 A and the name of a kind of micro waist energy absorption device and safety belt buckle is the force limiting device of safety belt buckle, a steel wire rope is needed in the energy absorption device, and the riveting joint is arranged at both ends of the steel wire rope. The connection strength of the steel wire and the riveting joint has higher requirement, after the riveting joint and the steel wire are fixedly connected by pressing, how to test the connection strength of the riveting joint and the steel wire rope becomes a problem to be solved. CONTENT OF UTILITY MODEL

[0003] The utility model aims at providing a riveting joint tension testing device.

[0004] To solve the above technical problem, the utility model aims at realizing as follows:

[0005] The utility model relates to a kind of riveting joint tension testing device, including test device mounting plate;Two parallel straight linear guides are installed on the test device mounting plate;Guide rail sliding block is provided on the straight linear guide;

[0006] The guide rail sliding block is fixedly connected with the bottom plate of first connecting plate, the side wall plate of first connecting plate is fixedly connected with the output end of electric cylinder, and pull sensor is arranged between side wall plate and the output end of electric cylinder;

[0007] The upper portion of the first connecting plate is provided with a gas cylinder, and the output end of the gas cylinder is fixedly connected with a limiting rod.

[0008] The test device mounting plate is also fixedly provided with a riveting joint fixing plate, and the riveting joint fixing plate is provided with a riveting joint limiting groove with one side opening and external communication.

[0009] On the basis of the above scheme and as the preferred scheme of the above scheme: the electric cylinder is fixedly connected with the test device mounting plate by the second connecting plate;The second connecting plate is L-shaped.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: a first protrusion is provided on the side surface of the first connecting plate away from the electric cylinder, and the first protrusion is provided with a through hole perpendicular to the bottom plate for the limiting rod to pass through.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: the base plate is provided with a recessed portion corresponding to the through hole.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme: a second protrusion is provided on the side surface of the base plate near the mounting plate of the testing device, and the second protrusion is located between two guide rail sliders fixed to the base plate.

[0013] Based on the above scheme and as a preferred embodiment of the above scheme: the rivet joint fixing plate is T-shaped, and an L-shaped baffle is fixed on its outer side.

[0014] The beneficial effects of this utility model are as follows: The rivet joint tensile testing device involved in this utility model uses a rivet joint limiting groove set in the rivet joint fixing plate to limit the rivet joint, and a limiting rod set to limit the middle position of the steel wire rope. The electric cylinder provides power to make the limiting rod move to one side. Combined with the tensile sensor, the rivet strength between the rivet joint and the steel wire rope is tested. Attached Figure Description

[0015] Fig. 1 This is an isometric view of the rivet tensile testing device involved in this embodiment;

[0016] Fig. 2 It has a steel wire rope safety belt with a locking force limiting device;

[0017] Fig. 3 It is a 3D view of the rivet joint fixing plate;

[0018] Fig. 4 This is a 3D view of the first connecting plate.

[0019] The markings in the diagram are explained as follows: 1-Test device mounting plate; 2-Linear guide rail; 3-Guide rail slider; 4-First connecting plate; 5-Electric cylinder; 6-Tension sensor; 7-Pneumatic cylinder; 8-Limit rod; 9-Rivet joint fixing plate; 10-Second connecting plate; 11-Baffle; 41-Base plate; 42-Side wall plate; 43-First protrusion; 44-Through hole; 45-Recess; 46-Second protrusion; 91-Rivet joint limiting groove; 01-Wire rope; 02-Rivet joint. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Example

[0022] Combination Figs. 1 to 4 This embodiment will be described in detail. The riveting tensile testing device involved in this embodiment includes a testing device mounting plate 1; two parallel linear guide rails 2 are mounted on the testing device mounting plate 1; each linear guide rail 2 is provided with a guide rail slider 3. The guide rail slider 3 is fixedly connected to the base plate 41 of a first connecting plate 4, and the side wall plate 42 of the first connecting plate 4 is fixedly connected to the output end of an electric cylinder 5, so that the first connecting plate 4 moves linearly along the linear guide rails 2 under the drive of the electric cylinder 5.

[0023] A tension sensor 6 is provided between the side wall plate 42 and the output end of the electric cylinder 5. The tension sensor 6 is used to test the tension, and the tension sensor 6 is also connected to a display device to display the tension value.

[0024] A cylinder 7 is disposed above the first connecting plate 4, and a limiting rod 8 is fixedly connected to the output end of the cylinder 7. A rivet joint fixing plate 9 is also fixedly disposed on the test device mounting plate 1, and the rivet joint fixing plate 9 is provided with a rivet joint limiting groove 91 with one side opening communicating with the outside.

[0025] Furthermore, the electric cylinder 5 is fixedly connected to the test device mounting plate 1 via a second connecting plate 10; the second connecting plate 10 is L-shaped, but it can also be other suitable shapes. The electric cylinder 5 is a modular product with an integrated design of servo motor and lead screw, and the servo motor can drive the movement of the lead screw.

[0026] Furthermore, a first protrusion 43 is provided on the side surface of the side wall plate 42 of the first connecting plate 4 away from the electric cylinder 5. The first protrusion 43 is provided with a through hole 44 perpendicular to the bottom plate 41 for the limiting rod 8 to pass through. The bottom plate 41 is provided with a recess 45 corresponding to the through hole 44. The cylinder 5 drives the limiting rod 8 to move up and down along the through hole 44. When moving downward, the end of the limiting rod 8 is inserted into the recess 45.

[0027] Furthermore, a second protrusion 46 is provided on the side surface of the base plate 41 near the test device mounting plate 1. The second protrusion 46 is located between two guide rail sliders 3 fixed to the base plate 41, which allows the first connecting plate 4 to be locked between the two guide rail sliders 3.

[0028] Furthermore, the rivet joint fixing plate 9 is T-shaped, and an L-shaped baffle 11 is fixed on its outer side.

[0029] The working principle of the rivet joint tensile testing device involved in this embodiment is as follows: the two near ends of the steel wire rope 01 are positioned within the rivet joint limiting groove 91, while the rivet joints 02 at both ends are located outside the rivet joint fixing plate 9. The middle position of the steel wire rope 01 is positioned below the first protrusion 43, and the control cylinder 5 drives the limiting rod 8 downward to the recess 45, at which point the steel wire rope 01 is located between the limiting rod 8 and the side wall plate 42. At this time, the electric cylinder 5 is activated, driving the first connecting plate 4 to move away from the rivet joint fixing plate 9, at which point the steel wire rope 01 will be tightened, and the tension sensor 6 tests the tension. When the tension value reaches the set value, and the riveting position between the rivet joint and the steel wire rope is not loose, it is considered qualified.

[0030] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A rivet joint pull test apparatus, characterized by, Including test device mounting plate (1), two parallel linear guide rails (2) are installed on the test device mounting plate (1), guide rail sliders (3) are arranged on the linear guide rails (2); The guide rail slider (3) is fixedly connected with the bottom plate (41) of the first connecting plate (4), the side wall plate (42) of the first connecting plate (4) is fixedly connected with the output end of the electric cylinder (5), and the tensile sensor (6) is arranged between the side wall plate (42) and the output end of the electric cylinder (5); The first connecting plate (4) is provided with a gas cylinder (7) above, and the output end of the gas cylinder (7) is fixedly connected with a limiting rod (8); The test device mounting plate (1) is also fixedly provided with a riveting head fixing plate (9), and the riveting head fixing plate (9) is provided with a riveting head limiting groove (91) with one side opening and in communication with the outside.

2. A riveted joint pull test apparatus according to claim 1, wherein The electric cylinder (5) is fixedly connected with the test device mounting plate (1) through the second connecting plate (10); the second connecting plate (10) is L-shaped.

3. A riveted joint pull test apparatus according to claim 1, wherein The side wall plate (42) of the first connecting plate (4) is provided with a first protruding portion (43) on the surface away from the electric cylinder (5), and the first protruding portion (43) is provided with a through hole (44) perpendicular to the bottom plate (41) for the limiting rod (8) to pass through.

4. A riveted joint pull test apparatus according to claim 3, wherein The bottom plate (41) is provided with a recess (45) corresponding to the through hole (44).

5. A riveted joint pull test apparatus according to claim 3, wherein The bottom plate (41) is provided with a second protruding portion (46) on the surface close to the test device mounting plate (1), and the second protruding portion (46) is located between the two guide rail sliders (3) fixedly connected with the bottom plate (41).

6. A riveted joint pull test apparatus according to claim 1, wherein The riveting head fixing plate (9) is T-shaped, and an L-shaped baffle (11) is further fixed outside the riveting head fixing plate (9).

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