CN214694340U

CN214694340U - Quick low-cost prevention of seepage carbon tool

Info

Publication number: CN214694340U
Application number: CN202120656663.4U
Authority: CN
Inventors: 林司
Original assignee: Sigma Giken Shanghai Co ltd
Current assignee: Sigma Giken Shanghai Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-12
Anticipated expiration: 2031-03-31

Abstract

The utility model relates to the technical field of gear machining, in particular to a quick and low-cost anti-carburizing jig, which comprises a plurality of gear parts, pressing sheets, a screw rod and a fixing nut, wherein the gear parts and the pressing sheets are arranged at intervals and are penetrated on the screw rod, and the pressing sheets are arranged at the outer sides of the gear parts at two ends; the fixing nuts are matched with the screw rod, and two groups of fixing nuts are arranged and are respectively positioned at two ends of the screw rod and are mutually abutted with pressing sheets at two ends of the screw rod to compact gear parts and the pressing sheets; a through hole is formed in the middle of the gear part, and the size of the screw rod is matched with that of the through hole; the utility model provides a prevention carburizing tool can protect the hole position of gear, exposes the processing that carries on that outside tooth portion can be normal, and the hole that is tightly covered by prevention carburizing pressure piece can not carry out carburization to avoid its increase hardness, be unfavorable for subsequent processing, can effectually save time, reduce manufacturing cost.

Description

Quick low-cost prevention of seepage carbon tool

Technical Field

The utility model relates to a gear machining technical field specifically is a quick low-cost prevention of seepage carbon tool.

Background

In the gear machining production, generally, in order to improve the hardness of the gear, a carburizing heat treatment process is carried out, so that the strength of the tooth part is increased, and the wear-resisting life is prolonged.

However, in order to improve the precision, the inner hole needs to be subjected to finish machining again after the carburizing heat treatment, in order to facilitate cutting during machining, a conventional method generally coats special anti-carburizing silt on the inner hole and the periphery of the gear, so as to prevent the hardness of the inner hole from being increased during carburizing, which causes difficulty in machining, and the method is time-consuming and labor-consuming in coating each gear workpiece, difficult to clean the silt after finishing and high in manufacturing cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a quick low-cost prevention of carburizing tool to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a quick and low-cost anti-carburizing jig comprises a plurality of gear parts, pressing sheets, a screw rod and fixing nuts, wherein the gear parts and the pressing sheets are arranged at intervals and penetrate through the screw rod, and the pressing sheets are arranged on the outer sides of the gear parts at two ends; the fixing nuts are matched with the screw rod, and two groups of fixing nuts are arranged and are respectively positioned at two ends of the screw rod and are mutually abutted with pressing sheets at two ends of the screw rod to compact gear parts and the pressing sheets; the middle position of the gear part is provided with a through hole, and the size of the screw rod is matched with that of the through hole.

Preferably, the whole tabletting is of an annular structure, and the tabletting consists of at least two groups of annular pressure dividing plates; the tabletting is of a concentric ring structure and is formed by nesting the tabletting sheets; the outer partial pressure piece is in seamless butt joint with the inner partial pressure piece, and the size of the inner hole of the innermost partial pressure piece is matched with the size of the through hole.

Preferably, be glossy body of rod structure in the middle of the lead screw, both ends are the thread head, and the smooth body of rod in the middle passes through the screw thread with the thread head at both ends and links to each other, and the thread head is detachable construction with the body of rod in the middle.

Preferably, the thread arrangement directions of the thread heads at the two ends of the smooth rod body are opposite.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a prevention carburizing tool can protect the hole position of gear, exposes the processing that carries on that outside tooth portion can be normal, and the hole that is tightly covered by prevention carburizing pressure piece can not carry out carburization to avoid its increase hardness, be unfavorable for subsequent processing, can effectually save time, reduce manufacturing cost.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic structural view of a gear part of the present invention;

FIG. 4 is a schematic view of the structure of the tablet of the present invention;

reference numbers in the figures: 1. a gear component; 2. tabletting; 3. a screw rod; 4. fixing a nut; 5. and (5) tabletting.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-4, the present invention provides a technical solution: a quick and low-cost anti-carburizing jig comprises a plurality of gear parts 1, pressing pieces 2, a screw rod 3 and fixing nuts 4, wherein the gear parts 1 and the pressing pieces 2 are arranged at intervals, the gear parts 1 and the pressing pieces 2 are arranged on the screw rod 3 in a penetrating manner, and the pressing pieces 2 are arranged on the outer sides of the gear parts 1 at two ends; the fixing nuts 4 are matched with the screw rod 3, and two groups of fixing nuts 4 are arranged and are respectively positioned at two ends of the screw rod 3 and are tightly abutted against the pressing sheets 2 at two ends of the screw rod 3 to compact the gear parts 1 and the pressing sheets 2; a through hole is formed in the middle of the gear part 1, and the size of the screw rod 3 is matched with that of the through hole.

Furthermore, the whole tabletting 2 is of an annular structure, and the tabletting 2 consists of at least two groups of annular pressure-dividing sheets 5; the tabletting 5 is of a concentric ring structure and is mutually nested to form the tabletting 2; the outer partial pressure plate 5 is in seamless butt joint with the inner partial pressure plate 5, and the size of the inner hole of the innermost partial pressure plate 5 is matched with that of the through hole.

Further, be glossy body of rod structure in the middle of the lead screw 3, both ends are the thread head, and the glossy body of rod in the middle passes through the screw thread with the thread head at both ends and links to each other, and the thread head is detachable construction with the body of rod in the middle.

Furthermore, the thread arrangement directions on the thread heads at the two ends of the smooth rod body are opposite.

The working principle is as follows: when the gear pressing piece is specifically applied, the fixing nut 4 on one side of the screw rod 3 is screwed down, the pressing piece 2 penetrates through the screw rod 3 to abut against the installed fixing nut 4, the gear part 1 and the pressing piece 2 are sleeved on the screw rod 3 at intervals, the pressing piece 2 is sleeved on the outer side of the gear part 1 at the topmost end, and the fixing nut 4 on the other side is screwed down; through the mode, the two sides of each gear part 1 are covered by the pressing sheets 2, so that when the gear parts 1 are carburized, the inner hole parts of the gears are protected, the tooth parts exposed outside can be normally carburized, and the inner holes tightly covered by the anti-carburizing pressing sheets cannot be carburized, so that the hardness of the inner holes is prevented from being increased, and the subsequent processing is facilitated.

The screw rod 3 consists of a smooth rod body and a threaded head which are connected through threads, and the rod body and the threaded head can be disassembled and assembled; the number and the size of the gear parts 1 are carburized as required, and rod bodies with different lengths and sizes are selected to match practical application. Selecting corresponding pressure dividing sheets 5 according to different inner hole sizes and different protection ranges of the gear part 1 to form pressure sheets 2 with different inner diameters and outer diameters so as to correspond to different inner diameters of the gear part 1 and different protection ranges of the surface of the gear part 1; the practical application is more convenient and fast.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a quick low-cost prevention of carburizing tool which characterized in that: the gear component comprises a plurality of gear components (1), pressing sheets (2), a screw rod (3) and fixing nuts (4), wherein the gear components (1) and the pressing sheets (2) are arranged at intervals and penetrate through the screw rod (3), and the pressing sheets (2) are arranged on the outer sides of the gear components (1) at two ends; the fixing nuts (4) are matched with the screw rod (3), two groups of fixing nuts (4) are arranged and are respectively arranged at two ends of the screw rod (3) and are tightly abutted against the pressing sheets (2) at two ends of the screw rod (3) to compact the gear parts (1) and the pressing sheets (2); the middle position of the gear part (1) is provided with a through hole, and the size of the screw rod (3) is matched with that of the through hole.

2. The rapid low-cost anti-carburizing fixture according to claim 1, characterized in that: the whole tabletting (2) is of an annular structure, and the tabletting (2) consists of at least two groups of annular pressure-dividing sheets (5); the tabletting (5) is of a concentric ring structure and is nested with each other to form the tabletting (2); the outer partial pressure plate (5) is in seamless butt joint with the inner partial pressure plate (5), and the size of the inner hole of the innermost partial pressure plate (5) is matched with that of the through hole.

3. The rapid low-cost anti-carburizing fixture according to claim 1, characterized in that: the middle of the screw rod (3) is of a smooth rod body structure, the two ends of the screw rod are threaded heads, the middle smooth rod body is connected with the threaded heads at the two ends through threads, and the threaded heads and the middle rod body are of a detachable structure.

4. The rapid low-cost anti-carburizing fixture according to claim 3, characterized in that: the thread arrangement directions on the thread heads at the two ends of the smooth rod body are opposite.