CN218408077U

CN218408077U - Floating bolt for connecting shell

Info

Publication number: CN218408077U
Application number: CN202222591894.9U
Authority: CN
Inventors: 潘俊俊; 肖善喜; 徐申志
Original assignee: Obeio Kunshan Automobile Fastener Co ltd
Current assignee: Obeio Kunshan Automobile Fastener Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-01-31
Anticipated expiration: 2032-09-29

Abstract

The utility model discloses a bolt that floats for casing is connected uses at the bolt technical field that floats, and its technical scheme main points are: the floating bolt comprises a butt-joint bolt fixedly arranged in the lower pressure riveting tool and a butt-joint nut sleeved and connected on the butt-joint bolt, the butt-joint nut comprises a butt-joint part for abutting against the butt-joint bolt and a pressure riveting part fixedly arranged on the butt-joint part with the same axis, and the pressure riveting part is inserted and arranged in the mounting hole; has the technical effects that: simple structure and good installation effect.

Description

Floating bolt for connecting shell

Technical Field

The utility model relates to a floating bolt technical field, in particular to floating bolt for casing is connected.

Background

The automobile battery pack is usually composed of a lower shell, an upper shell and an internal battery core, and due to the limitation of processing precision during production, a certain position tolerance can inevitably exist between the mounting holes of the upper shell and the lower shell, so that when the automobile battery pack is mounted, due to the fact that the lower shell is fixed to the matched nut, the effect of mounting is influenced due to the fact that the bolt mounted on the upper shell is eccentrically and cannot be locked into the nut, and therefore the bolt mounted on the upper shell needs a certain floating amount to adjust the position, so that the mounting effect is enhanced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bolt that floats for casing is connected, its advantage is simple structure, and the installation is effectual.

The above technical purpose of the present invention can be achieved by the following technical solutions: a floating bolt for connecting a shell comprises an upper shell and a press riveting tool for installing the floating bolt on the upper shell, wherein a plurality of installation holes are formed in the upper shell, and the press riveting tool comprises a lower press riveting tool and an upper press riveting piece; the floating bolt comprises a butt-joint bolt fixedly arranged in the lower pressure riveting tool and a butt-joint nut fixedly arranged on the butt-joint bolt, the butt-joint nut comprises a butt-joint part used for abutting against the butt-joint bolt and a pressure riveting part fixedly arranged on the butt-joint part with the same axis, and the pressure riveting part is inserted and arranged in the mounting hole.

Through above-mentioned technical scheme, set up and push down the riveting frock and go up the pressure piece of riveting, at first will float the bolt fastening in the pressure riveting frock down, insert the mounting hole on the upper cover plate on the portion is riveted to the pressure afterwards, use afterwards to press the piece of riveting to realize will pressing the fixed joint of portion of riveting on last casing, simple structure, simple to operate.

The utility model discloses further set up to: and when the lower end surface of the upper shell is attached to the lower press riveting tool, the upper end surface of the press riveting part is higher than the lower end surface of the clamping groove.

The utility model discloses further set up to: go up to press to rivet fixedly on the piece to be equipped with the pressure that is the taper structure and rivet the bush and press the platform, press and rivet the bush and insert drive in the pressure riveting portion opens, press and rivet the platform butt press and rivet a up end in order to drive press and rivet the portion crooked until press riveting portion with the joint groove realizes the joint.

The utility model discloses further set up to: when the press riveting portion is connected with the clamping groove in a clamped mode, the upper end face of the abutting portion is lower than the lower end face of the upper shell.

Through the technical scheme, fixed setting is the pressure that the toper set up and rivets the bush and presses the riveting platform on last pressure riveting piece, when the lower terminal surface of last casing with press down the riveting tool when laminating, because the up end that presses riveting portion is higher than the lower terminal surface in joint groove, consequently the pressure that is the toper structure rivets the bush and inserts to press and rivets the portion in and realize driving and press riveting portion and open, up to pressing the upper end of riveting the portion of riveting to riveting the butt, press and rivet the platform and drive the partial crooked realization that presses riveting portion to be higher than joint groove up end and form the joint with the joint groove, because the up end of butt portion is less than the lower terminal surface of last casing, still can realize having the floating of butt joint nut on the casing side on the perpendicular to when installing the bolt that will float on the last casing, promote the installation effect.

The utility model discloses further set up to: the butt-joint bolt includes head and fixed connection in pole portion on the head, the head with fixed butt joint board that is equipped with between the pole portion, pole portion is kept away from the one end of head is equipped with the pressure and rivets the screw thread, distance on the pole portion one section distance department of butt joint board is fixed and is equipped with spacing portion.

Through the technical scheme, the one end of keeping away from the head in pole portion sets up the pressure riveting screw thread and set up the butt plate between head and pole portion, butt portion butt can't continue to remove on the butt plate, it drives the pressure riveting bush towards the motion of pressure riveting portion to go up the pressure riveting piece and press riveting screw-thread fit and makes the part bending realization that the pressure riveting portion is higher than joint groove up end form the joint with the joint groove, moreover, the steam generator is simple in structure, set up spacing portion apart from one section distance department of butt plate in pole portion, just can't continue to remove when the pressure is riveted the bush down terminal surface motion to spacing portion position, it influences the joint effect to avoid the too big of last pressure riveting piece movement distance.

The utility model discloses further set up to: the butt joint nut is internally provided with a floating groove for the butt joint nut to pass through, the floating groove is in a step-shaped structure, and the aperture of one end, abutted against the abutting plate, of the floating groove is the smallest. The aperture of the floating groove at the end is larger than the diameter of the rod part and smaller than the diameter of the limiting part.

Through the technical scheme, set up the floating groove in the butt-joint nut and set up the one end aperture that the floating groove aperture is minimum and be greater than the diameter of pole portion and be less than the diameter of spacing portion, when guaranteeing that the bolt that will float is installed on the casing, the butt-joint bolt can carry out floating of certain degree in last casing surface direction, the installation effect has been promoted, also can not make the butt-joint bolt drop from the butt-joint nut simultaneously, will go up the casing and install down when the casing on directly with the rotatory lock of butt-joint bolt under the casing can, the operation is simpler.

To sum up, the utility model discloses following beneficial effect has:

1. the press riveting bush is inserted into the press riveting part to drive the press riveting part to open until the press riveting table abuts against the upper end face of the press riveting part, the press riveting table drives the part, higher than the upper end face of the clamping groove, of the press riveting part to bend so as to form clamping with the clamping groove, and the upper end face of the abutting part is lower than the lower end face of the upper shell, so that floating of the abutting nut in the direction perpendicular to the upper shell can be still achieved when the floating bolt is installed on the upper shell, and the installation effect is improved;

2. the one end aperture that sets up the groove aperture of floating minimum is greater than the diameter of pole portion and is less than the diameter of spacing portion, when guaranteeing to float the bolt and install on the casing, docking bolt can carry out floating of certain degree in last casing surface direction, also can not make docking bolt drop from the butt nut simultaneously.

Drawings

FIG. 1 is a schematic view of a half-section of the present embodiment in which a floating bolt is mounted to an upper housing using a clinch tool;

FIG. 2 is a schematic structural view of the floating bolt of the present embodiment mounted on the upper housing;

fig. 3 is a schematic view of the half-section structure of fig. 2.

Reference numerals: 1. an upper housing; 11. mounting holes; 12. a clamping groove; 2. a riveting tool; 21. pressing and riveting the tool; 22. pressing a rivet; 221. pressing and riveting the lining; 222. pressing and riveting the table; 3. a floating bolt; 31. a butt bolt; 311. a head portion; 312. twisting the rotary groove; 313. a rod portion; 314. a butt joint plate; 315. pressing and riveting threads; 316. a limiting part; 32. butting nuts; 321. an abutting portion; 322. a riveting part; 323. a float bath.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment is as follows:

referring to fig. 1, a floating bolt for casing connection, the casing includes casing 1 and the lower casing of being connected with the cooperation of last casing 1, a plurality of mounting holes 11 have been seted up on last casing 1, set up the joint groove 12 that sets up with the axle center on the mounting hole 11, set up the bolt hole with mounting hole 11 one-to-one on the lower casing, need use pressure riveting tool 2 when fixing floating bolt 3 on last casing 1, pressure riveting tool 2 includes pressure riveting frock 21 down and last pressure riveting 22, floating bolt 3 includes butt joint bolt 31 and overlaps the butt joint nut 32 of establishing connection on butt joint bolt 31.

Referring to fig. 1 and 2, in detail, the butt nut 32 includes an abutting portion 321 for abutting against the butt bolt 31 and a press riveting portion 322 fixedly disposed on the abutting portion 321 coaxially, the butt bolt 31 includes a head portion 311 and a rod portion 313 fixedly connected to the head portion 311, the head portion 311 is uniformly provided with a plurality of turning grooves 312 for turning the butt bolt 31, a butt plate 314 is fixedly disposed between the head portion 311 and the rod portion 313, one end of the rod portion 313 away from the head portion 311 is provided with a press riveting screw thread 315, a limiting portion 316 is fixedly disposed on the rod portion 313 at a distance from one end of the butt plate 314, an accommodating groove for accommodating the floating bolt 3 is disposed in the lower press riveting tool 21, the accommodating groove is in a step-shaped configuration, an engaging block engaged with the turning grooves 312 is disposed at a bottom of the accommodating groove for fixing the butt bolt 31, the butt plate 314 abuts against the accommodating groove, when the floating bolt 3 needs to be mounted in the mounting hole 11 on the upper housing 1, the butt bolt 31 is first fixed, then the butt nut 32 is sleeved on the butt bolt 31 so that the abutting portion 321 abuts against the abutting portion 314, then the press riveting portion 322 is inserted in the mounting hole 11, and finally the mounting nut 32 on the housing 1 is mounted on the housing 1.

Referring to fig. 3, specifically, when the rivet pressing portion 322 is inserted into the mounting hole 11, a lower end surface of the upper housing 1 is attached to the lower rivet pressing tool 21, an upper end surface of the rivet pressing portion 322 is higher than a lower end surface of the clamping groove 12, a rivet pressing bushing 221 in a tapered structure and a rivet pressing table 222 parallel to the surface of the upper housing 1 are fixedly arranged on the rivet pressing portion 22, the rivet pressing portion 22 is matched with the rivet pressing thread 315 to enable the rivet pressing portion 22 to move towards the rivet pressing portion 322 until the rivet pressing bushing 221 is inserted into the rivet pressing portion 322, an inclined surface of the rivet pressing bushing 221 abuts against the inner surface of the rivet pressing portion 322 to provide an even outward expansion force to the rivet pressing portion 322, the rivet pressing portion 322 is driven to open, the rivet pressing portion 22 continues to move until the rivet pressing table 222 abuts against the upper end surface of the rivet pressing portion 322 to drive the rivet pressing portion 322 to bend until the rivet pressing portion 322 is clamped with the clamping groove 12, when the rivet pressing portion 322 is clamped with the clamping groove 12, an upper end surface of the rivet pressing portion 321 is lower end surface of the upper housing 1 to be lower end surface of the floating nut 3, and the floating nut can be mounted on the upper housing 1 in a vertical direction.

Referring to fig. 1 and 2, specifically, a floating groove 323 through which the docking nut 32 passes is formed in the docking nut 32, the floating groove 323 has a stepped structure, the aperture of the end of the floating groove 323 abutting against the abutting plate 314 is the smallest, and the aperture of the floating groove 323 at the end is larger than the diameter of the rod portion 313 and smaller than the diameter of the limiting portion 316, when the floating bolt 3 is mounted on the upper shell 1, the docking bolt 31 can float to a certain extent in the surface direction of the upper shell 1, so that the mounting effect is improved, meanwhile, the docking bolt 31 cannot fall out of the docking nut 32, and the docking bolt 31 can be directly rotated and locked into the lower shell when the upper shell 1 is mounted on the lower shell.

The using process is briefly described as follows: firstly, the floating bolt 3 is installed on the upper shell 1, namely, the butt bolt 31 is fixed in an accommodating groove to realize fixation, then, the butt nut 32 is sleeved on the butt bolt 31 to enable the butt part 321 to butt against the butt plate 314, then, the press riveting part 322 is inserted and arranged in the installation hole 11, finally, the upper press riveting piece 22 moves towards the press riveting part 322 to drive the press riveting bush 221 to be inserted into the press riveting part 322, the inclined surface of the press riveting bush 221 butts against the inner surface of the press riveting part 322 to drive the press riveting part 322 to be opened, and the upper press riveting piece 22 continues to move until the press riveting table 222 butts against the upper end surface of the press riveting part 322 to drive the press riveting part 322 to be bent to realize clamping between the press riveting part 322 and the clamping groove 12;

the upper case 1 is attached to the lower case by hand: the positions of the butt bolts 31 in the butt nuts 32 are adjusted to enable the butt bolts 31 to be accurately butted with the bolt holes on the lower shell one by one, and finally a special tool is used for screwing the butt bolts 31 to enable the upper shell 1 to be fixed to the upper shell 1 and cannot move.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment with inventive contribution as required after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A floating bolt for connecting shells comprises an upper shell (1) and a riveting tool (2) used for installing a floating bolt (3) on the upper shell (1), wherein a plurality of installation holes (11) are formed in the upper shell (1), and the riveting tool (2) comprises a lower riveting tool (21) and an upper riveting piece (22); the floating bolt (3) is characterized by comprising a butt bolt (31) fixedly arranged in a lower pressure riveting tool (21) and a butt nut (32) sleeved on the butt bolt (31), wherein the butt nut (32) comprises a butt part (321) used for butting against the butt bolt (31) and a pressure riveting part (322) fixedly arranged on the butt part (321) with the same axis, and the pressure riveting part (322) is inserted into the mounting hole (11).

2. The floating bolt for connecting the shell according to claim 1, wherein a clamping groove (12) is formed in the mounting hole (11), and when the lower end surface of the upper shell (1) is attached to the lower riveting tool (21), the upper end surface of the riveting portion (322) is higher than the lower end surface of the clamping groove (12).

3. The floating bolt for shell connection according to claim 2, wherein a rivet pressing bushing (221) and a rivet pressing table (222) which are of a conical structure are fixedly arranged on the upper rivet pressing piece (22), the rivet pressing bushing (221) is inserted into the rivet pressing portion (322) to drive the rivet pressing portion (322) to open, the rivet pressing table (222) abuts against the upper end face of the rivet pressing portion (322) to drive the rivet pressing portion (322) to bend until the rivet pressing portion (322) is clamped with the clamping groove (12).

4. The floating bolt for shell connection according to claim 3, characterized in that when the clinch portion (322) is clinched to the clinch groove (12), the upper end face of the abutting portion (321) is lower than the lower end face of the upper shell (1).

5. The floating bolt for shell connection according to claim 1, wherein the butt bolt (31) comprises a head (311) and a rod (313) fixedly connected to the head (311), a butt plate (314) is fixedly arranged between the head (311) and the rod (313), a press riveting screw thread (315) is arranged at one end of the rod (313) far away from the head (311), and a limiting part (316) is fixedly arranged on the rod (313) at a distance from the butt plate (314).

6. A floating bolt for shell connection according to claim 5 characterized in that said docking nut (32) has a floating slot (323) formed therein for said docking nut (32) to pass through, said floating slot (323) is of stepped configuration and has the smallest aperture at the end abutting against said abutting plate (314), and the aperture of said floating slot (323) is larger than the diameter of said shank (313) and smaller than the diameter of said position-limiting portion (316).