Hexagonal rivet nut positioning mechanism

Abstract

The utility model relates to the technical field of rivet nuts, in particular to a hexagonal rivet nut positioning mechanism which comprises a fixing sleeve piece and a positioning sleeve piece arranged at one end of the fixing sleeve piece. According to the utility model, through the arrangement of the interlocking body, when the gun nozzle screw rod is not aligned with the internal thread of the hexagonal rivet nut, namely the gun nozzle screw rod is inclined, the positioning sheet drives the interlocking body to slide, so that the end barrel is clamped through the interlocking body, the gun nozzle screw rod cannot enter the internal thread, and the gun nozzle screw rod can be screwed in only when the gun nozzle screw rod is aligned with the internal thread; and finally, the hexagonal rivet nut is deformed and fixed by pulling, so that the deformation fixing effect of the hexagonal rivet nut is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of rivet nuts, in particular to a hexagonal rivet nut positioning mechanism. Background Art

[0002] Hexagonal rivet nuts are developed to solve the shortcomings of easy melting of welding nuts on metal sheets and thin tubes and easy slipping of internal threads. They are widely used as fasteners in the assembly of electromechanical and light industrial products such as automobiles, aviation, instruments, furniture, and decoration.

[0003] For example, a new type of countersunk hexagonal rivet nut involved in CN219639228U has a hexagonal through hole on the plate, and a circular chamfer is arranged on the upper end of the hexagonal through hole, including: a nut body, which is hexagonal; a countersunk structure, which is arranged on the upper end of the nut body, and a circular countersunk is arranged on the countersunk structure, and a countersunk wedge surface connected to the upper end of the nut body is arranged on the circular countersunk, and the countersunk wedge surface fits with the circular chamfer. When the nut body passes through the hexagonal through hole, the circular countersunk can sink into the circular chamfer through the countersunk wedge surface, so that the upper end surface of the circular countersunk is flush with the surface of the plate. When the hexagonal rivet nut is used, the nozzle screw of the rivet gun is screwed into the internal thread of the rivet nut, and then the hexagonal rivet nut is deformed and fixed by pulling. In this process, the nozzle screw needs to be aligned with the rivet nut before it can be screwed in, otherwise the deformation and fixing effect of the hexagonal rivet nut will be unsatisfactory due to thread slippage and other conditions.

[0004] In order to ensure that the nozzle screw can be aligned and screwed into the internal thread of the rivet nut to ensure the deformation and fixing effect of the hexagonal rivet nut, a hexagonal rivet nut positioning structure is proposed. Summary of the invention

[0005] The utility model aims to provide a hexagonal rivet nut positioning mechanism to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides a hexagonal rivet nut positioning mechanism, comprising a fixing kit and a positioning kit arranged at one end of the fixing kit;

[0007] The fixing kit comprises an end plate and an end tube arranged at one end of the end plate, and a clamping body for clamping and fixing the hexagonal rivet nut is symmetrically arranged at one end of the end plate away from the end tube;

[0008] The positioning kit includes a movable cylinder and an inner disk arranged at one end of the movable cylinder, the inner disk is plugged into the end cylinder, a positioning plate is arranged at the end of the movable cylinder away from the inner disk, a plurality of slidingly connected interlocking bodies are arranged in the inner wall of the movable cylinder, one end of the interlocking body is in contact with the positioning plate, and the other end of the interlocking body is snap-fitted with the end cylinder, when the gun nozzle screw is skewed, the positioning plate drives the interlocking body to slide, and then the end cylinder is clamped by the interlocking body.

[0009] As a further improvement of the technical solution, a movable pin is provided at one end of the clamp body, the movable pin is plugged into the end plate, the two movable pins are connected by a movable spring, and the clamp body matches the shape of the outer wall of the hexagonal rivet nut.

[0010] As a further improvement of the technical solution, the end plate is a cylinder with a diameter greater than the diameter of the hexagonal rivet nut.

[0011] As a further improvement of the technical solution, the positioning piece is rotatably connected to the movable cylinder.

[0012] As a further improvement of the present technical solution, the interlocking body includes a contact rod and a slide plate which are slidably connected to the inner wall of the movable cylinder, one end of the contact rod is in contact with the positioning plate, the other end of the contact rod is slidably connected to the slide plate, and the slide plate is snap-fitted with the end cylinder.

[0013] As a further improvement of the technical solution, the inner disk is connected to an inner spring, and the inner disk is connected to the inner wall of the end tube through the inner spring.

[0014] As a further improvement of the technical solution, a contact spring is sleeved on the contact rod, and the contact rod is connected to the inner wall of the movable cylinder through the contact spring.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. In the hexagonal rivet nut positioning mechanism, a chain body is provided. When the nozzle screw is not aligned with the internal thread of the hexagonal rivet nut, that is, when the nozzle screw is skewed, the positioning piece drives the chain body to slide, and then the end tube is clamped by the chain body, so that the nozzle screw cannot enter the internal thread. It can only be screwed in when the nozzle screw is aligned with the internal thread, and finally the hexagonal rivet nut is deformed and fixed by pulling, thereby ensuring the deformation and fixing effect of the hexagonal rivet nut.

[0017] 2. In the hexagonal rivet nut positioning mechanism, an inner spring is provided. When the hexagonal rivet nut is inserted from bottom to top, the movable cylinder can be prevented from retracting into the end cylinder. When the nozzle screw is not aligned, the movable cylinder can be reset with the help of the elastic force of the inner spring after being pulled out, thereby facilitating repeated alignment and positioning of the nozzle screw and ensuring the deformation and fixing effect of the hexagonal rivet nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the fixing kit of the utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the positioning kit of the utility model;

[0021] Figure 4 It is a schematic diagram of the chain body of the utility model.

[0022] The meaning of each number in the figure is:

[0023] 1. Fixing kit; 11. End plate; 12. End tube; 121. Card slot; 13. Clamp body; 131. Movable pin; 132. Movable spring;

[0024] 2. Positioning kit; 21. Movable cylinder; 22. Inner disk; 23. Inner spring; 24. Positioning sheet; 241. Connecting ball; 25. Interlocking body; 251. Contact rod; 252. Slide plate; 253. Contact spring; 254. Gear. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] See also Figure 1-Figure 4 As shown, this embodiment provides a hexagonal rivet nut positioning mechanism, including a fixing kit 1 and a positioning kit 2 arranged at one end of the fixing kit 1;

[0028] The fixing kit 1 comprises an end plate 11 and an end tube 12 arranged at one end of the end plate 11, and a clamping body 13 for clamping and fixing a hexagonal rivet nut is symmetrically arranged at one end of the end plate 11 away from the end tube 12;

[0029] The positioning kit 2 includes a movable cylinder 21 and an inner disk 22 arranged at one end of the movable cylinder 21, the inner disk 22 is located in the end cylinder 12, and the inner disk 22 is plugged into the end cylinder 12. A positioning piece 24 is arranged at the end of the movable cylinder 21 away from the inner disk 22, and a plurality of slidingly connected interlocking bodies 25 are arranged in the inner wall of the movable cylinder 21, one end of the interlocking body 25 contacts the positioning piece 24, and the other end of the interlocking body 25 is snap-fitted with the end cylinder 12, the nozzle screw of the rivet gun contacts the positioning piece 24 and pushes the inner disk 22 to move along the end cylinder 12, when the nozzle screw is not aligned with the internal thread of the hexagonal rivet nut, that is, when the nozzle screw is skewed, the positioning piece 24 drives the interlocking body 25 to slide, and then clamps the end cylinder 12 through the interlocking body 25, so that the nozzle screw cannot enter the internal thread, and can only be screwed in when the nozzle screw is aligned with the internal thread, and finally pulled to deform and fix the hexagonal rivet nut, thereby ensuring the deformation and fixing effect of the hexagonal rivet nut.

[0030] When the device is in use, the opposite end of the gun nozzle screw rod at the other end of the hexagonal rivet nut needs to be inserted into the hexagonal rivet nut and fixed with the hexagonal rivet nut. A movable pin 131 is provided at one end of the clamp body 13. The movable pin 131 is plugged and matched with the end plate 11. The two movable pins 131 are connected by a movable spring 132. The clamp body 13 matches the shape of the outer wall of the hexagonal rivet nut, so as to facilitate the clamping and fixing with the hexagonal rivet nut. The movable spring 132 is elastically connected to make the distance between the two clamp bodies 13 adjustable, so as to facilitate the fixing of hexagonal rivet nuts of different diameters.

[0031] In addition, the end plate 11 is a cylinder with a diameter larger than that of the hexagonal rivet nut. When fixed, the other end of the hexagonal rivet nut is in close contact with the surface of the end plate 11, so that the end tube 12 can be vertically inserted into the hexagonal rivet nut, thereby facilitating the positioning and insertion of the subsequent gun nozzle screw.

[0032] In order to facilitate close contact with the gun nozzle screw, a connecting ball 241 is provided at one end of the positioning piece 24 near the movable cylinder 21, and a spherical groove is correspondingly opened on the surface of the movable cylinder 21, and the connecting ball 241 is located in the spherical groove. The positioning piece 24 and the movable cylinder 21 are rotatably connected through the connecting ball 241 and the spherical groove. When one end of the gun nozzle screw contacts and squeezes the surface of the positioning piece 24, the positioning piece 24 can rotate relative to the movable cylinder 21, thereby facilitating the fitting of the surface of the positioning piece 24 and the end face of the gun nozzle screw. When the plane where the positioning piece 24 is located is perpendicular to the central axis of the movable cylinder 21 after fitting, that is, when the gun nozzle screw is aligned with the internal thread of the hexagonal rivet nut, the gun nozzle screw can push the movable cylinder 21 to move along the end cylinder 12 until the gun nozzle screw contacts the internal thread and is screwed in. When the positioning piece 24 is fitted, When the plane is not perpendicular to the central axis of the movable cylinder 21, the interlocking body 25 includes a contact rod 251 and a slide plate 252 which are slidably connected to the inner wall of the movable cylinder 21. One end of the contact rod 251 contacts the positioning piece 24, and the other end of the contact rod 251 is slidably connected to the slide plate 252. A slot 121 is provided on the inner wall of the end cylinder 12, and a latch tooth 254 is correspondingly provided on the slide plate 252. The slide plate 252 and the end cylinder 12 are engaged with each other through the latch tooth 254 and the slot 121. When the positioning piece 24 rotates relative to the movable cylinder 21, the contact rod 251 in contact with the positioning piece 24 slides along the inner wall of the movable cylinder 21 and drives the slide plate 252 to slide outward until the latch tooth 254 contacts and gets stuck with the slot 121 on the inner wall of the end cylinder 12, so that the gun nozzle screw cannot drive the movable cylinder 21 to move.

[0033] Taking into account the insertion direction of the hexagonal rivet nut during use, and the need to reset the movable cylinder 21 when the gun nozzle screw is pulled out and reinserted, the inner disk 22 is connected to the inner spring 23, and the inner disk 22 is connected to the inner wall of the end cylinder 12 through the inner spring 23. By providing the inner spring 23, when the hexagonal rivet nut is inserted from bottom to top, the movable cylinder 21 can be prevented from retracting into the end cylinder 12, and when the gun nozzle screw is not aligned, the elastic force of the inner spring 23 is used to reset the movable cylinder 21 after it is pulled out. In order to prevent the slide plate 252 engaged with the slot 121 from affecting the resetting of the movable cylinder 21, a contact spring 253 is sleeved on the contact rod 251, and the contact rod 251 is connected to the inner wall of the movable cylinder 21 through the contact spring 253. By providing the contact spring 253, when the gun nozzle screw is not in contact with the positioning piece 24, under the elastic force of the contact spring 253, the contact rod 251 drives the contact rod 251 to reset, so that the slide plate 252 is disengaged from the slot 121, thereby facilitating the resetting of the movable cylinder 21.

[0034] The hexagonal rivet nut positioning mechanism of the present embodiment is used in practice. When the end tube 12 is inserted into the hexagonal rivet nut, the end of the hexagonal rivet nut is brought into contact with the end plate 11. Then, under the elastic force of the movable spring 132, the two clamps 13 fix the hexagonal rivet nut. The nozzle screw of the rivet gun contacts the positioning piece 24 and pushes the inner plate 22 to move along the end tube 12. When the nozzle screw is not aligned with the internal thread of the hexagonal rivet nut, that is, the nozzle screw is skewed, the positioning piece 24 rotates relative to the movable tube 21, and the contact rod 251 in contact with the positioning piece 24 moves along the The inner wall of the movable cylinder 21 slides and drives the slide plate 252 to slide outward until the locking tooth 254 contacts and gets stuck with the slot 121 on the inner wall of the end cylinder 12, so that the nozzle screw cannot drive the movable cylinder 21 to move and the nozzle screw cannot enter the internal thread. The movable cylinder 21 can be pushed to move only when the nozzle screw is aligned with the internal thread. The nozzle screw contacts the internal thread and screws in to push the device out, so that the device does not contact the hexagonal rivet nut. The device can be reused, and the rivet gun deforms and fixes the hexagonal rivet nut by pulling the nozzle screw, thereby ensuring the deformation and fixing effect of the hexagonal rivet nut.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A hexagonal rivet nut positioning mechanism, characterized in that: It comprises a fixing kit (1) and a positioning kit (2) arranged at one end of the fixing kit (1); The fixing kit (1) comprises an end plate (11) and an end tube (12) arranged at one end of the end plate (11); a clamping body (13) for clamping and fixing a hexagonal rivet nut is symmetrically arranged at one end of the end plate (11) away from the end tube (12); The positioning kit (2) comprises a movable cylinder (21) and an inner disk (22) arranged at one end of the movable cylinder (21), the inner disk (22) being plug-fitted with the end cylinder (12), a positioning piece (24) being arranged at one end of the movable cylinder (21) away from the inner disk (22), a plurality of slidingly connected interlocking bodies (25) being arranged in the inner wall of the movable cylinder (21), one end of the interlocking body (25) being in contact with the positioning piece (24), and the other end of the interlocking body (25) being snap-fitted with the end cylinder (12), when the gun nozzle screw becomes skewed, the positioning piece (24) drives the interlocking body (25) to slide, and then the end cylinder (12) is clamped by the interlocking body (25).

2. The hexagonal rivet nut positioning mechanism according to claim 1, characterized in that: A movable pin (131) is provided at one end of the clamp body (13), the movable pin (131) is plug-fitted with the end plate (11), the two movable pins (131) are connected via a movable spring (132), and the clamp body (13) matches the shape of the outer wall of the hexagonal rivet nut.

3. The hexagonal rivet nut positioning mechanism according to claim 1, characterized in that: The end plate (11) is a cylinder having a diameter greater than the diameter of the hexagonal rivet nut.

4. The hexagonal rivet nut positioning mechanism according to claim 1, characterized in that: The positioning piece (24) is rotatably connected to the movable cylinder (21).

5. The hexagonal rivet nut positioning mechanism according to claim 1, characterized in that: The interlocking body (25) comprises a contact rod (251) and a slide plate (252) which are slidably connected to the inner wall of the movable cylinder (21); one end of the contact rod (251) is in contact with the positioning plate (24); the other end of the contact rod (251) is slidably connected to the slide plate (252); and the slide plate (252) is snap-fitted with the end cylinder (12).

6. The hexagonal rivet nut positioning mechanism according to claim 1, characterized in that: The inner disk (22) is connected to an inner spring (23), and the inner disk (22) is connected to the inner wall of the end tube (12) via the inner spring (23).

7. The hexagonal rivet nut positioning mechanism according to claim 5, characterized in that: A contact spring (253) is sleeved on the contact rod (251), and the contact rod (251) is connected to the inner wall of the movable cylinder (21) via the contact spring (253).

Images