CN216990705U

CN216990705U - Hole and shaft fastening and buckling tool

Info

Publication number: CN216990705U
Application number: CN202220344081.7U
Authority: CN
Inventors: 徐承飞; 张华东
Original assignee: Tianrun Industrial Technology Co ltd; Tianrun Intelligent Control System Integration Co ltd
Current assignee: Tianrun Industrial Technology Co ltd; Tianrun Intelligent Control System Integration Co ltd
Priority date: 2022-02-21
Filing date: 2022-02-21
Publication date: 2022-07-19
Anticipated expiration: 2032-02-21

Abstract

The utility model relates to a hole and shaft fastening and crimping tool, which comprises: the riveting base and the riveting head are located above the riveting base and do linear motion in the vertical direction relative to the riveting base, the riveting head comprises a convex shaft, a round table and a base, the upper end and the lower end of the convex shaft are respectively integrally formed with the base and the round table, a through hole is formed in the riveting head, the through hole penetrates through the convex shaft, the round table and the base, a second hole is formed in the riveting base, and the second hole is located below the through hole. The inner hole of the armature is in clearance fit with the push rod, so that the surface of the push rod is prevented from being damaged by the inner hole, the characteristic that the iron armature is easy to deform is utilized, the diameter of the end part of the inner hole of the armature is reduced after the end part is extruded and deformed by the riveting head, the armature and the push rod are fixed together, and the problem of surface roughness reduction of the push rod caused by the assembly of the inner hole of the armature and the push rod is solved.

Description

Hole and shaft fastening and buckling tool

Technical Field

The utility model relates to the field of fastening tools, in particular to a hole and shaft fastening and buckling tool.

Background

The existing armature inner hole and the push rod are fixed in an interference fit mode, but the existing push rod needs high surface precision, and the armature inner hole and the push rod scratch the surface of the push rod in the interference fit process, so that the surface roughness of the push rod is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems, provides a hole and shaft fastening and buckling tool, and solves the problem of surface roughness reduction of a push rod caused by the assembly of an armature inner hole and the push rod.

The utility model provides a frock is withheld in hole, axle fastening, includes: the riveting base and the riveting head are located above the riveting base and do linear motion in the vertical direction relative to the riveting base, the riveting head comprises a convex shaft, a round table and a base, the upper end and the lower end of the convex shaft are respectively integrally formed with the base and the round table, a through hole is formed in the riveting head, the through hole penetrates through the convex shaft, the round table and the base, a second hole is formed in the riveting base, and the second hole is located below the through hole.

Further, a first chamfer is formed at the lower end of the through hole.

Further, the riveting seat is provided with a first hole, the first hole is positioned above the second hole and communicated with the second hole, and the inner diameter of the first hole is larger than that of the second hole.

Further, chamfers are respectively formed at the upper ends of the first hole and the second hole.

Further, the maximum diameter of the cross section of the circular truncated cone is gradually reduced from top to bottom.

The utility model has the following advantages: the inner hole of the armature is in clearance fit with the push rod, so that the damage of the inner hole to the surface of the push rod is avoided, the characteristic that the iron armature is easy to deform is utilized, the diameter of the end part of the inner hole of the armature is reduced after the end part is extruded and deformed by a riveting head, the armature and the push rod are fixed together, and the problem that the surface roughness of the push rod is reduced when the armature inner hole and the push rod are assembled is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary of the utility model, and that other embodiments can be derived from the drawings provided by those skilled in the art without inventive effort.

FIG. 1: the front view cross-sectional structure schematic diagram of the riveting seat;

FIG. 2: the front view cross-sectional structural schematic diagram of the riveting head;

FIG. 3: the utility model is a schematic view of a main view structure during working;

FIG. 4: and a partial enlarged structure schematic diagram at A.

Detailed Description

The utility model is further illustrated by the following figures and examples:

reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The first embodiment is as follows:

as shown in fig. 1 to 4, the present embodiment provides a fastening and crimping tool for a hole and a shaft, including: riveting seat 1 and riveting head 2, riveting head 2 is located riveting seat 1 top and rivets the linear motion of pressing seat 1 about doing relatively, riveting head 2 includes protruding axle 21, round platform 22 and base 25, both ends respectively with base 25 and round platform 22 integrated into one piece about protruding axle 21, riveting head 2 is formed with through-hole 23, through-hole 23 runs through protruding axle 21, round platform 22 and base 25, riveting seat 1 is formed with second hole 12, second hole 12 is located through-hole 23 below.

Further, a first chamfer 24 is formed at the lower end of the through hole 23.

Further, the riveting base 1 is formed with a first hole 11, the first hole 11 is located above a second hole 12 and is communicated with the second hole 12, and the inner diameter of the first hole 11 is larger than that of the second hole 12.

Further, upper ends of the first hole 11 and the second hole 12 are respectively formed with chamfers.

Further, the maximum diameter of the cross section of the circular truncated cone 22 is gradually reduced from top to bottom.

The working principle is as follows:

the riveting seat 1 is placed on the plane of a workbench, the armature 3 is placed in a first hole 11 with the same outer diameter for positioning, the push rod 4 is inserted into the hole of the armature 3, and the push rod 4 is in clearance fit with the armature 3 and a second hole 12. The riveting head 2 is driven by a driving device (such as a press) to move downwards, the push rod 4 is inserted into the through hole 23, and the circular truncated cone 22 is inserted into the first hole 11. The lower end of the circular truncated cone 22 contacts with the upper end of the armature 3 and continuously extrudes the armature 3, and because the armature 3 made of pure iron has low hardness and good ductility, the armature 3 deforms to enable part of the armature to enter the annular groove 41 of the push rod 4, so that the push rod 4 and the armature 3 are fixed.

The first hole 11 and the second hole 12 position the armature 3 and the push rod 4, respectively, so as to keep the axes of the armature 3 and the push rod 4 coincident during processing. Wherein, the diameter of the base 25 is larger than that of the first hole 11, and the circular truncated cone 22 is limited to continue moving downwards after the base 25 contacts with the upper end of the riveting seat 1.

The present invention has been described above by way of example, but the present invention is not limited to the above-described specific embodiments, and any modification or variation made based on the present invention is within the scope of the present invention as claimed.

Claims

1. The utility model provides a frock is withheld in hole, axle fastening which characterized in that includes: riveting seat (1) and riveting head (2), riveting head (2) are located riveting seat (1) top and do the linear motion of direction from top to bottom relatively riveting seat (1), riveting head (2) are including protruding axle (21), round platform (22) and base (25), both ends respectively with base (25) and round platform (22) integrated into one piece about protruding axle (21), riveting head (2) are formed with through-hole (23), protruding axle (21), round platform (22) and base (25) are run through in through-hole (23), riveting seat (1) is formed with second hole (12), second hole (12) are located through-hole (23) below.

2. A hole and shaft fastening and crimping tool according to claim 1, characterized in that: the lower end of the through hole (23) is provided with a first chamfer (24).

3. A hole and shaft fastening and crimping tool as claimed in claim 1, wherein: the riveting seat (1) is provided with a first hole (11), the first hole (11) is located above the second hole (12) and communicated with the second hole (12), and the inner diameter of the first hole (11) is larger than that of the second hole (12).

4. A hole and shaft fastening and crimping tool according to claim 3, characterized in that: chamfers are formed at the upper ends of the first hole (11) and the second hole (12) respectively.

5. A hole and shaft fastening and crimping tool according to claim 1, characterized in that: the maximum diameter of the cross section of the circular truncated cone (22) is gradually reduced from top to bottom.