Rivet nut displacement detection device

Abstract

The utility model relates to a rivet nut displacement detection device, which comprises a rivet platform, a rivet nut arranged above the rivet platform, a through hole arranged on the rivet platform and below the rivet nut, two guide pillar mounting seats arranged below the rivet platform, and two guide pillars arranged below the guide pillar mounting seats. A fixed top plate is installed below the two guide columns, an air cylinder is installed below the fixed top plate, the telescopic end of the air cylinder faces upwards, the upper portion of the telescopic end is connected with a movable top plate, a clamping block is installed on the movable top plate, a telescopic rod is installed on the upper portion of the clamping block, the upper end of the telescopic rod faces the through hole, and a displacement sensor is installed on the lower portion of the clamping block. According to the utility model, the displacement sensor and the telescopic rod are arranged, and the telescopic rod is in contact with the nut rivet, so that the displacement of the nut after rivet pulling can be detected through the displacement sensor, the stability of the nut rivet pulling operation process can be monitored, and the device can quickly detect whether the collapse amount of the nut is qualified or not and reduce the outflow of defective products.

Description

Technical Field

[0001] The utility model relates to a rivet nut displacement detection device. Background Art

[0002] When the riveting device is in the process of riveting the nut, the rivet will shrink. The existing riveting device detects the shrinkage of the nut after riveting by directly detecting the amount of shrinkage of the nut through the displacement sensor, and transmits the measurement signal to the control system. If the riveting process is abnormal and the shrinkage of the nut does not meet the requirements, the control system will alarm. The displacement sensor of the device directly measures the shrinkage of the nut after riveting with an accuracy of 0.1mm, and it is impossible to perform higher-precision measurements.

[0003] In order to solve the above problems, the present utility model is hereby proposed. Utility Model Content

[0004] The utility model aims to provide a rivet nut displacement detection device.

[0005] The above purpose is achieved by the following technical solutions:

[0006] A rivet nut displacement detection device comprises a rivet platform, a rivet nut is placed above the rivet platform, a through hole is provided on the rivet platform and below the rivet nut, a guide post mounting seat is installed below the rivet platform, a guide post is installed below the guide post mounting seat, there are two guide post mounting seats, a fixed top plate is installed below the two guide posts, a cylinder is installed below the fixed top plate, the telescopic end of the cylinder faces upward, a movable top plate is connected above the telescopic end, a clamping block is installed on the movable top plate, a telescopic rod is installed on the upper part of the clamping block, the upper end of the telescopic rod faces the through hole, and a displacement sensor is installed on the lower part of the clamping block.

[0007] Preferably, it also includes a movable top plate mounting seat, the upper part of the telescopic end is connected to the movable top plate mounting seat, and the movable top plate mounting seat is connected to the movable top plate.

[0008] Preferably, it also includes a sliding sleeve, which is sleeved on the outer side of the guide column and fixedly connected to the movable top plate.

[0009] Preferably: a limit rod is further arranged below the riveting platform, a limit bolt is arranged on the limit rod, a through hole 1 is arranged on the movable top plate at a position corresponding to the limit rod, and the limit bolt is located above the movable top plate.

[0010] Preferably, there may be a plurality of rivet nuts, and correspondingly, there may be a plurality of through holes on the rivet platform, a plurality of clamping blocks, a plurality of telescopic rods, and a plurality of displacement sensors.

[0011] Beneficial technical effects:

[0012] The utility model is provided with a displacement sensor and a telescopic rod, and the telescopic rod is in contact with the nut riveting. The displacement of the nut after riveting can be detected by the displacement sensor, so as to monitor the stability of the nut riveting operation process. The device can quickly detect whether the nut shrinkage amount is qualified, and reduce the outflow of defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model will be further described below in conjunction with the accompanying drawings.

[0014] Figure 1 The utility model is a schematic diagram of the structure of a rivet nut displacement detection device.

[0015] Figure 2 It is another structural schematic diagram of the rivet nut displacement detection device of the utility model.

[0016] Figure 3 It is yet another structural schematic diagram of the utility model rivet nut displacement detection device.

[0017] Figure 4 It is another structural schematic diagram of the rivet nut displacement detection device of the utility model.

[0018] The numbers in the figure are: 1. rivet platform; 2. guide column mounting seat; 3. guide column; 4. sliding sleeve; 5. fixed top plate; 6. movable top plate mounting seat; 7. cylinder; 8. telescopic end; 9. clamping block; 10. displacement sensor; 11. telescopic rod; 12. movable top plate; 13. rivet nut; 14. through hole; 15. limit rod; 16. limit bolt. DETAILED DESCRIPTION

[0019] Reference Figure 1-Figure 4 As shown, a rivet nut displacement detection device comprises a rivet platform 1, a rivet nut 13 is placed above the rivet platform 1, a through hole 14 is provided on the rivet platform 1 and below the rivet nut 13, a guide post mounting seat 2 is installed below the rivet platform 1, a guide post 3 is installed below the guide post mounting seat 2, there are two guide post mounting seats 2, a fixed top plate 5 is installed below the two guide posts 3, a cylinder 7 is installed below the fixed top plate 5, a telescopic end 8 of the cylinder 7 faces upward, a movable top plate 12 is connected above the telescopic end 8, a clamping block 9 is installed on the movable top plate 12, a telescopic rod 11 is installed on the upper part of the clamping block 9, the upper end of the telescopic rod 11 faces the through hole 14, the telescopic rod 11 penetrates the through hole 14 and can contact the rivet nut 13, a displacement sensor 10 is installed on the lower part of the clamping block 9, and the displacement sensor 10 is used to measure the telescopic amount of the telescopic rod 11.

[0020] When the detection device is started, the cylinder 7 pushes the movable top plate 12 to move upward until the upper part of the telescopic rod 11 contacts the rivet nut 13 to be drawn and stops. The displacement sensor 10 can calculate the shrinkage amount of the rivet nut 13 according to the displacement of the telescopic rod 11.

[0021] It also includes a movable top plate mounting seat 6 , the upper part of the telescopic end 8 is connected to the movable top plate mounting seat 6 , and the movable top plate mounting seat 6 is connected to the movable top plate 12 .

[0022] The sliding sleeve 4 is also included. The sliding sleeve 4 is sleeved on the outside of the guide column 3. The sliding sleeve 4 is fixedly connected to the movable top plate 12 to ensure that the movable top plate 12 slides along the guide column 3, thereby enhancing the stability of the movable top plate 12 in sliding up and down. At the same time, by setting the connection relationship between the sliding sleeve 4 and the guide column 3, the guide column 3 is used to achieve the purpose of guiding the movable top plate 12 to move up and down.

[0023] A limiting rod 15 is also provided below the riveting platform 1, and a limiting bolt 16 is provided on the limiting rod 15. A through hole 1 is provided at a position of the movable top plate 12 corresponding to the limiting rod 15. The limiting rod 15 passes through the through hole 1, and the movable top plate 12 slides along the limiting rod 15. The limiting bolt 16 is located above the movable top plate 12. The limiting bolt 16 is used to limit the maximum distance that the movable top plate 12 moves upward, so as to prevent the movable top plate 12 from moving upward without restriction and damaging other components of the entire detection device.

[0024] There can be multiple rivet nuts 13, and correspondingly, there are multiple through holes 14 on the rivet platform 1, multiple clamping blocks 9, telescopic rods 11 and displacement sensors 10. In this embodiment, there are four rivet nuts 13.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rivet nut displacement detection device, comprising a rivet platform (1), a rivet nut (13) being placed above the rivet platform (1), characterized in that: A through hole (14) is provided on the rivet platform (1) and below the rivet nut (13); a guide post mounting seat (2) is installed below the rivet platform (1); a guide post (3) is installed below the guide post mounting seat (2); two guide post mounting seats (2) are provided; a fixed top plate (5) is installed below the two guide posts (3); a cylinder (7) is installed below the fixed top plate (5); a telescopic end (8) of the cylinder (7) faces upward; a movable top plate (12) is connected above the telescopic end (8); a clamping block (9) is installed on the movable top plate (12); a telescopic rod (11) is installed on the upper part of the clamping block (9); the upper end of the telescopic rod (11) faces the through hole (14); and a displacement sensor (10) is installed on the lower part of the clamping block (9).

2. The rivet nut displacement detection device according to claim 1, characterized in that: It also includes a movable top plate mounting seat (6), the upper part of the telescopic end (8) is connected to the movable top plate mounting seat (6), and the movable top plate mounting seat (6) is connected to the movable top plate (12).

3. The rivet nut displacement detection device according to claim 1, characterized in that: It also includes a sliding sleeve (4), which is sleeved on the outside of the guide column (3) and is fixedly connected to the movable top plate (12).

4. The rivet nut displacement detection device according to claim 1, characterized in that: A limit rod (15) is also provided below the riveting platform (1), and a limit bolt (16) is provided on the limit rod (15); a through hole 1 is provided on the movable top plate (12) at a position corresponding to the limit rod (15), and the limit bolt (16) is located above the movable top plate (12).

5. The rivet nut displacement detection device according to claim 1, characterized in that: The rivet nuts (13) are multiple, and correspondingly, the through holes (14) on the rivet platform (1) are also multiple, and the clamping blocks (9), telescopic rods (11) and displacement sensors (10) are also multiple.

Images