Rivet welding rivet detection friction equipment

Abstract

The utility model relates to the technical field of rivet detection friction equipment, in particular to rivet welding rivet detection friction equipment. According to the technical scheme, the riveting device comprises a base, a pressure applying mechanism installed on the base and used for applying pressure to rivets and a driving mechanism installed on the base and used for driving a connecting piece and the rivets to move relatively, and further comprises a supporting component installed on the base, and the supporting component is used for limiting the rivets with different diameters. The supporting component adjusts the axis of the rivet so that the axis of the rivet can be perpendicular to the driving mechanism. The diameter of a circle formed by the plurality of positioning rods is adjusted according to rivets with different diameters, so that the plurality of positioning rods abut against the rivets, the rivets can be limited, the rivets are prevented from moving in a friction test, corresponding adjustment can be carried out according to the diameters of different rivets, and the riveting accuracy is improved. Therefore, the application range can be effectively expanded.

Description

Technical Field

[0001] This utility model relates to the technical field of rivet friction detection equipment, and in particular to a rivet welding friction detection equipment. Background Technology

[0002] Riveting is a method of joining two or more metal parts together by melting them, combining the characteristics of riveting and welding. In riveting, rivets are typically used as filler material, and high temperatures fuse the rivets to the workpieces, forming a strong connection. Friction testing of the rivets is a crucial step in ensuring their performance and reliability, as different materials and surface treatments affect the rivet's frictional characteristics. Friction testing helps in selecting the most suitable rivet materials and surface treatments for specific applications. The results of friction tests can be used to optimize the riveting process, such as adjusting parameters like riveting speed, pressure, and temperature, to improve riveting quality and efficiency.

[0003] Rivets come in various specifications, and different specifications of rivets have different diameters. When existing testing equipment clamps and fixes rivets, it is generally necessary to use specially made fixtures or apply a tightening force to fix the rivets. When testing rivets by applying a tightening force, the rivets may be deflected. Specific fixtures will increase the testing cost and have low applicability. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a friction detection device for riveted and welded rivets.

[0005] The technical solution of this utility model: a friction detection device for riveted rivets, comprising a base, a pressure applying mechanism mounted on the base for applying pressure to the rivets, and a drive mechanism mounted on the base for driving the connecting parts to move relative to the rivets, and further comprising:

[0006] A support component mounted on the base limits the movement of rivets of different diameters. The support component adjusts the axis of the rivets so that the axis of the rivets is perpendicular to the drive mechanism.

[0007] Optionally, a connecting seat is fixedly installed on the base, and the supporting component is installed on the connecting seat.

[0008] Optionally, the pressure applying mechanism includes a pressure applying rod threaded onto a connecting seat, a handle fixedly mounted on the pressure applying rod, a pressure plate rotatably mounted on the pressure applying rod, a connecting cylinder slidably mounted on the pressure plate, a plurality of springs fixedly mounted on the pressure plate, the other end of the springs being fixedly connected to the connecting cylinder, a pressure sensor fixedly mounted on the connecting cylinder, and a connecting assembly fixedly mounted on the pressure sensor.

[0009] Optionally, the connecting assembly includes an internally threaded rod fixedly mounted on the pressure sensor, the internally threaded rod being internally threaded to a lead screw, and an abutment plate being rotatably mounted on the lead screw.

[0010] Optionally, the drive mechanism includes a push rod motor fixedly mounted on a base, a slide rail fixedly mounted on the base, a support plate slidably mounted on the slide rail, a test plate detachably mounted on the support plate, and the output shaft of the push rod motor fixedly connected to the support plate.

[0011] Optionally, the support component includes a mounting plate slidably mounted on a connecting seat, a plurality of first slide rods slidably mounted on the mounting plate, a lifting ring fixedly mounted at the other end of the plurality of first slide rods, a fastening rod rotatably mounted on the lifting ring, the fastening rod being threadedly connected to the mounting plate, a plurality of second slide rods slidably mounted on the lifting ring, a positioning rod fixedly mounted at one end of the second slide rod, and a connecting rod rotatably mounted at the other end of the second slide rod, the connecting rod being rotatably connected to the mounting plate.

[0012] Optionally, a connecting rod is fixedly mounted on the mounting plate, a slider is fixedly mounted on the connecting rod, and a sliding groove is provided on the connecting seat, with the slider slidably connected to the sliding groove.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] By applying pressure to the rivet and measuring the applied pressure, and by moving the test plate relative to the rivet and measuring the frictional force between the rivet and the test plate during the movement, the coefficient of friction can be calculated using F=μ×N. This allows for the study of the influence of different materials and surface treatments on the frictional characteristics of the rivet, which helps in selecting the most suitable rivet material and surface treatment method for a specific application.

[0015] Furthermore, by adjusting the diameter of the circle formed by multiple positioning rods according to the different diameters of the rivets, the multiple positioning rods can be pressed against the rivets, thereby limiting the rivets and preventing them from moving during friction testing. The adjustment can be made according to the diameter of different rivets, thus effectively improving the applicability. Attached Figure Description

[0016] Figure 1 Schematic diagram of the friction testing equipment for riveted rivets. Figure 1 ;

[0017] Figure 2 Schematic diagram of the friction testing equipment for riveted rivets. Figure 2 ;

[0018] Figure 3Provide a schematic diagram of the internal structure of the connecting cylinder;

[0019] Figure 4 Schematic diagram of the supporting components Figure 1 ;

[0020] Figure 5 Schematic diagram of the supporting components Figure 2 ;

[0021] Figure 6 Schematic diagram of the supporting components Figure 3 .

[0022] Reference numerals: 1. Base; 101. Connecting seat; 2. Pressure rod; 201. Rotary handle; 202. Connecting cylinder; 203. Pressure plate; 204. Spring; 205. Pressure sensor; 206. Internal threaded rod; 207. Lead screw; 208. Abutment plate; 3. Push rod motor; 301. Slide rail; 302. Support plate; 303. Test plate; 304. Tension sensor; 4. Mounting plate; 401. First slide rod; 402. Lifting ring; 403. Fastening rod; 404. Second slide rod; 405. Positioning rod; 406. Connecting rod; 5. Connecting rod; 501. Slider; 502. Slide groove; 6. Rivet. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] Examples, such as Figures 1 to 6 As shown, the present invention proposes a friction detection device for rivets, including a base 1, a pressure applying mechanism mounted on the base 1 for applying pressure to rivets 6, and a drive mechanism mounted on the base 1 for moving a connecting component relative to the rivets 6. A connecting seat 101 is fixedly mounted on the base 1, and a support component is mounted on the connecting seat 101. The pressure applying mechanism includes a pressure rod 2 threadedly connected to the connecting seat 101, a handle 201 fixedly mounted on the pressure rod 2, a pressure plate 203 rotatably mounted on the pressure rod 2, a connecting cylinder 202 slidably mounted on the pressure plate 203, a plurality of springs 204 fixedly mounted on the pressure plate 203, the other end of each spring 204 being fixedly connected to the connecting cylinder 202, a pressure sensor 205 fixedly mounted on the connecting cylinder 202, and a connecting assembly fixedly mounted on the pressure sensor 205. The connecting assembly includes an internally threaded rod 206 fixedly mounted on the pressure sensor 205, with a lead screw 207 internally threadedly connected to the rod 206, and an abutment plate 208 rotatably mounted on the lead screw 207. When pressure is applied to the rivet 6, the abutment plate 208 can be pressed against the top of the rivet 6.

[0025] When the abutment plate 208 is abutted against the rivet 6, the lead screw 207 needs to be rotated to drive the abutment plate 208 to move up and down, so that the abutment plate 208 can abut against the rivet 6, and can accommodate rivets 6 of different heights. The bottom of the rivet 6 will abut against the drive mechanism. At this time, rotating the pressure rod 2 will drive the pressure plate 203 to descend. The descending pressure plate 203 will squeeze the spring 204. The squeezed spring 204 will increase the elastic force applied to the connecting cylinder 202, and thus the elastic force can be applied to the abutment plate 208, which applies pressure to the rivet 6. The pressure applied to the rivet 6 can be measured by the pressure sensor 205.

[0026] Furthermore, the drive mechanism includes a push rod motor 3 fixedly mounted on the base 1, a slide rail 301 fixedly mounted on the base 1, a support plate 302 slidably mounted on the slide rail 301, a test plate 303 detachably mounted on the support plate 302, and the output shaft of the push rod motor 3 fixedly connected to the support plate 302. Rivet 6 will abut against test plate 303. Different test plates 303 can be used to measure the friction coefficient of rivet 6. Test plate 303 is generally the connected part connected to rivet 6. At this time, the push rod motor 3 drives the support plate 302 to slide along the slide rail 301, so that the test plate 303 and rivet 6 can move relative to each other. A tension sensor 304 is fixedly installed on the output shaft of push rod motor 3. The tension sensor 304 can measure the friction force between rivet 6 and test plate 303 when test plate 303 and rivet 6 move. At this time, the pressure between rivet 6 and test plate 303 and the friction force between rivet 6 and test plate 303 are known. Then, the friction coefficient can be calculated according to F=μ×N (where: F is the friction force, the unit is Newton (N), μ is the friction coefficient, which is a dimensionless ratio representing the friction characteristics between two surfaces, and N is the normal force perpendicular to the contact surface, the unit is Newton (N)).

[0027] This embodiment also includes a support component mounted on the base 1. The support component limits the positioning of rivets 6 of different diameters and adjusts the axis of the rivets 6 so that the axis of the rivets 6 is perpendicular to the drive mechanism. The support component includes a mounting plate 4 slidably mounted on the connecting seat 101. A plurality of first slide rods 401 are slidably mounted on the mounting plate 4. A lifting ring 402 is fixedly mounted on the other end of the plurality of first slide rods 401. A fastening rod 403 is rotatably mounted on the lifting ring 402 and is threadedly connected to the mounting plate 4. A plurality of second slide rods 404 are slidably mounted on the lifting ring 402. A positioning rod 405 is fixedly mounted on one end of the second slide rod 404 and a connecting rod 406 is rotatably mounted on the other end of the second slide rod 404. The connecting rod 406 is rotatably connected to the mounting plate 4. Adjusting the diameter of the circle formed by multiple positioning rods 405 according to the different diameters of the rivets 6, rotating the fastening rod 403 will cause the lifting ring 402 to slide along the first slide rod 401. The sliding lifting ring 402 will drive the connecting rod 406 to rotate. The rotating connecting rod 406 will drive the second slide rod 404 to move, which will in turn drive the multiple positioning rods 405 to contract or expand, so that the multiple positioning rods 405 abut against the rivets 6, thereby limiting the rivets 6 and preventing them from moving during friction testing. It can also be adjusted according to the diameter of different rivets 6, thereby effectively improving the applicability.

[0028] Furthermore, a connecting rod 5 is fixedly installed on the mounting plate 4, and a slider 501 is fixedly installed on the connecting rod 5. A groove 502 is provided on the connecting seat 101, and the slider 501 is slidably connected to the groove 502. Through the sliding connection between the slider 501 and the groove 502, the rivet 6 can move up and down within a certain range, which facilitates the installation of the rivet 6 and can accommodate rivets 6 of different heights.

[0029] Working principle: The diameter of the circle formed by multiple positioning rods 405 is adjusted according to the different diameters of the rivets 6. Rotating the fastening rod 403 will cause the lifting ring 402 to slide along the first sliding rod 401. The sliding lifting ring 402 will drive the connecting rod 406 to rotate. The rotating connecting rod 406 will drive the second sliding rod 404 to move, which will in turn drive the multiple positioning rods 405 to contract or expand, so that the multiple positioning rods 405 abut against the rivets 6. This can limit the rivets 6 and prevent them from moving during friction testing. It can also be adjusted according to the diameter of different rivets 6, thereby effectively improving the applicability. The abutment plate 208 is placed against the rivet 6, and then the pressure rod 2 is rotated to lower the pressure plate 203. The lowering pressure plate 203 will compress the spring 204, which will increase the elastic force applied to the connecting cylinder 202. This elastic force will then act on the abutment plate 208, applying pressure to the rivet 6. The pressure applied to the rivet 6 can be measured by the pressure sensor 205. The rivet 6 will then abut against the test plate 303. At this time, the push rod motor 3 drives the support plate 302 to slide along the slide rail 301, allowing the test plate 303 and the rivet 6 to move relative to each other. The tension sensor 304 can measure the frictional force between the rivet 6 and the test plate 303 when they move. This determines the magnitude of the pressure between the rivet 6 and the test plate 303 and the frictional force between them. The coefficient of friction can then be calculated using F=μ×N.

[0030] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A friction testing device for riveted rivets, comprising a base (1), a pressure applying mechanism mounted on the base (1) for applying pressure to rivets (6), and a driving mechanism mounted on the base (1) for driving a connecting member to move relative to the rivets (6), characterized in that, Also includes: The support component installed on the base (1) limits the rivets (6) of different diameters and adjusts the axis of the rivets (6) so that the axis of the rivets (6) is perpendicular to the drive mechanism. A connecting seat (101) is fixedly installed on the base (1), and the supporting component is installed on the connecting seat (101); The supporting component includes a mounting plate (4) slidably mounted on a connecting seat (101). A plurality of first slide rods (401) are slidably mounted on the mounting plate (4). A lifting ring (402) is fixedly mounted on the other end of the plurality of first slide rods (401). A fastening rod (403) is rotatably mounted on the lifting ring (402). The fastening rod (403) is threadedly connected to the mounting plate (4). A plurality of second slide rods (404) are slidably mounted on the lifting ring (402). A positioning rod (405) is fixedly mounted on one end of the second slide rod (404). A connecting rod (406) is rotatably mounted on the other end of the second slide rod (404). The connecting rod (406) is rotatably connected to the mounting plate (4).

2. The riveting and welding rivet friction testing device according to claim 1, characterized in that, The pressure applying mechanism includes a pressure rod (2) threaded onto a connecting seat (101), a handle (201) fixedly mounted on the pressure rod (2), a pressure plate (203) rotatably mounted on the pressure rod (2), a connecting cylinder (202) slidably mounted on the pressure plate (203), a plurality of springs (204) fixedly mounted on the pressure plate (203), the other end of the springs (204) being fixedly connected to the connecting cylinder (202), a pressure sensor (205) fixedly mounted on the connecting cylinder (202), and a connecting assembly fixedly mounted on the pressure sensor (205).

3. The riveting and welding rivet friction testing device according to claim 2, characterized in that, The connecting assembly includes an internally threaded rod (206) fixedly mounted on a pressure sensor (205), the internally threaded rod (206) being internally threaded to a lead screw (207), and an abutment plate (208) being rotatably mounted on the lead screw (207).

4. The riveting and welding rivet friction testing device according to claim 3, characterized in that, The driving mechanism includes a push rod motor (3) fixedly mounted on a base (1), a slide rail (301) fixedly mounted on the base (1), a support plate (302) slidably mounted on the slide rail (301), a test plate (303) detachably mounted on the support plate (302), and the output shaft of the push rod motor (3) fixedly connected to the support plate (302).

5. The riveting and welding rivet friction testing device according to claim 4, characterized in that, A connecting rod (5) is fixedly installed on the mounting plate (4), and a slider (501) is fixedly installed on the connecting rod (5). A groove (502) is provided on the connecting seat (101), and the slider (501) is slidably connected to the groove (502).

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