CN217019198U

CN217019198U - Assembling, welding and self-locking mechanism for elastic sheet and powder metallurgy part

Info

Publication number: CN217019198U
Application number: CN202220340705.8U
Authority: CN
Inventors: 蔡喜斌; 丁振勇; 杨红飞; 赵亮; 王申万; 杜斌; 姚伟
Original assignee: Shenzhen Zhengzheng Zhongxin Precision Technology Co ltd
Current assignee: Shenzhen Zhengzheng Zhongxin Precision Technology Co ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-07-22
Anticipated expiration: 2032-02-18

Abstract

The utility model discloses an assembling, welding and self-locking mechanism for an elastic sheet and a powder metallurgy part, which comprises a base for fixing the elastic sheet and a pressing plate for pressing the powder metallurgy part, wherein two sides of the base are respectively provided with a guide assembly and a self-locking assembly, the guide assembly is used for pressing and guiding the pressing plate, and the self-locking assembly is used for providing pressing force and locking functions for the pressing plate. According to the welding self-locking mechanism provided by the utility model, the elastic sheet and the powder metallurgy part are clamped outside the welding machine, the handle is conveniently and quickly clamped, and the production efficiency is greatly improved; the pressing force is ensured by spring force and is constant, so that the defects caused by non-pressing or over-pressing deformation of products due to unstable pressure are completely avoided, and the yield is improved.

Description

Self-locking mechanism for assembling and welding elastic sheet and powder metallurgy part

Technical Field

The utility model relates to the technical field of powder metallurgy processing, in particular to an assembling, welding and self-locking mechanism for an elastic sheet and a powder metallurgy part.

Background

Powder metallurgy is an industrial technology for preparing metal powder or metal powder (or a mixture of metal powder and nonmetal powder) as a raw material, and preparing metal materials, composite materials and various products through forming and sintering. Powder metallurgy technology has been widely used in the fields of transportation, machinery, electronics, aerospace, weapons, biology, new energy, information, nuclear industry, etc., and has become one of the most active branches of new material science. The powder metallurgy technology has a series of advantages of remarkable energy saving, material saving, excellent performance, high product precision, good stability and the like, and is very suitable for mass production. In addition, materials and complex parts, which are partially impossible to manufacture by conventional casting and machining methods, are also manufactured by powder metallurgy, and thus are receiving great attention from the industry.

The small parts produced by powder metallurgy (especially the small parts of powder metallurgy parts welded on the elastic sheets) need to be positioned by a special locking mechanism during welding to ensure the welding quality, the traditional welding mechanism adopts manual compression, the pressing force cannot be controlled, the product has higher incompressibility or poor deformation, and the production yield is low.

Disclosure of Invention

The utility model aims to provide a pressure-controllable self-locking mechanism for solving the problem of low yield caused by uncontrollable pressing force during manual pressing.

The technical scheme adopted by the utility model is as follows: a self-locking mechanism for assembling and welding an elastic sheet and a powder metallurgy part comprises: including the base that is used for fixed shell fragment and the clamp plate that is used for compressing tightly powder metallurgy spare, the base both sides are provided with guide assembly and auto-lock subassembly respectively, guide assembly is used for right the clamp plate compresses tightly the direction, the auto-lock subassembly is used for right the clamp plate provides packing force and locking function.

Further, the guide assembly comprises two vertically-long holes arranged on two sides of the base.

Furthermore, the self-locking assembly comprises a pressure adjusting screw in threaded connection with the base, a handle, a connecting plate and a spring are sequentially sleeved on the outer circumferential surface of the pressure adjusting screw from the base side to the screw head, the connecting plate is connected with two ends of the pressing plate, and the spring presses the connecting plate to press the pressing plate.

Furthermore, the pressure adjusting screw is a half-thread screw, the screwed base section is a thread section, and the outer circumferential surface is sleeved with the connecting plate section which is a polished rod.

Furthermore, a round hole for the pressure adjusting screw to penetrate through is formed in one end of the handle, a groove is formed in the side, facing the connecting plate, of the handle, the connecting plate falls into the groove, and an inclined surface is arranged between the groove and the surface of the handle.

Furthermore, clamping grooves connected with the connecting plate are formed in two ends of the pressing plate, and the width of each clamping groove is the same as the thickness of the connecting plate.

Furthermore, a positioning plate is arranged at the position, where the elastic sheet is placed, of the base, and the positioning plate is fixed with the base through a positioning pin.

Furthermore, a fixing groove for inserting the elastic sheet is formed in the position, where the elastic sheet is placed on the base, of the fixing plate, a positioning groove is formed in the position, corresponding to the fixing groove, of the positioning plate, and the shape of the positioning groove is the same as that of the upper end of the elastic sheet.

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

according to the welding self-locking mechanism provided by the utility model, the elastic sheet and the powder metallurgy part are clamped outside the welding machine table, the handle is conveniently and quickly clamped, and the production efficiency is greatly improved; the pressing force is ensured by the spring force and is constant, so that the defects that the product is not pressed or is deformed due to overpressure caused by unstable pressure are completely avoided, and the yield is improved.

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 embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an enlarged view of part A of FIG. 1;

FIG. 3 is a perspective view of the self-locking assembly of the present invention;

FIG. 4 is a perspective view of the self-locking assembly of the present invention with the handle in a raised position relative to the connecting plate;

fig. 5 is a perspective view of the assembly of the spring plate and the powder metallurgy part of the utility model.

The reference numerals are explained below:

1. a base; 2. a guide assembly; 3. a self-locking assembly; 301. a pressure adjusting screw; 302. a handle; 303. a connecting plate; 304. a spring; 305. a groove; 4. positioning a plate; 5. a spring plate; 6. a powder metallurgy part; 7. a fixing groove; 8. positioning a groove; 9. pressing a plate; 10. positioning pins; 11. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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 those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element 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 and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 5, the elastic sheet 5 in this embodiment is in an inverted Ω shape, two powder metallurgy parts 6 are welded to the upper end of the elastic sheet 5, and the utility model will be described in detail by taking the example of welding the powder metallurgy parts 6 to the upper end of the elastic sheet 5.

As shown in fig. 1 to 4, a self-locking mechanism for assembling and welding a spring plate and a powder metallurgy part in this embodiment: the device comprises a base 1 for fixing an elastic sheet 5 and a pressing plate 9 for pressing a powder metallurgy part 6, wherein a guide assembly 2 and a self-locking assembly 3 are respectively arranged on two sides of the base 1, the guide assembly 2 is used for pressing and guiding the pressing plate 9, the guide assembly 2 comprises two vertical long holes arranged on two sides of the base 1, and the pressing plate 9 is a steel plate vertically placed in the long holes and can move up and down along the long holes; the self-locking assembly 3 is used for providing pressing force and locking function for the pressure plate 9.

As shown in fig. 3 and 4, the self-locking assembly 3 includes a pressure adjusting screw 301 in threaded connection with the base 1, a handle 302, a connecting plate 303 and a spring 304 are sequentially sleeved on the outer circumferential surface of the pressure adjusting screw 301 from the base 1 side to the screw head, the connecting plate 303 is connected with two ends of the pressure plate 9, and the spring 304 presses the connecting plate 303 to press the pressure plate 9. Handle 302 one end is provided with the confession pressure adjusting screw 301 passes the round hole, handle 302 orientation connecting plate 303 side is provided with recess 305, makes connecting plate 303 fall into in the recess 305, it is excessive to be provided with the inclined plane between recess 305 and the handle 302 surface, like this when rotating handle 302, can not blocked because of the step.

As shown in fig. 3, in order to facilitate the installation of the pressure plate 9 and the connection plate 303, two ends of the pressure plate 9 are provided with clamping grooves 11 connected with the connection plate 303, and the width of each clamping groove 11 is the same as the thickness of the connection plate 303.

In order to ensure that the connecting plate 303 is lifted smoothly, the pressure adjusting screw 301 is a half-thread screw, the section screwed into the base 1 is a thread section, and the section of the connecting plate 303 is a polished rod sleeved on the outer circumferential surface.

The locking force adjusting method comprises the following steps: the pressure adjusting screw 301 is screwed tightly, so that the length of the spring 304 is shortened, and the elastic potential energy is increased, thereby increasing the pressing force on the connecting plate 303, and increasing the pressure of the pressing plate 9 on the powder metallurgy part 6; conversely, the pressure adjusting screw 301 is unscrewed, so that the length side elastic potential energy of the compression spring 304 is reduced, and the compression force on the connecting plate 303 is reduced; the proper pressing force is adjusted to ensure that the powder metallurgy part 6 is just pressed into the elastic sheet 5, so that the deformation caused by under-pressure or overlarge pressure is avoided, and the consistency of the product quality is ensured.

As shown in fig. 1 and fig. 2, in order to fix the elastic sheet, a positioning plate 4 is disposed at a position of the base 1 where the elastic sheet 5 is placed, and the positioning plate 4 is fixed to the base 1 through a positioning pin 10. The position of the elastic sheet 5 placed on the base 1 is provided with a fixing groove 7 for inserting the elastic sheet 5, the position of the positioning plate 4 corresponding to the fixing groove 7 is provided with a positioning groove 8, the shape of the positioning groove 8 is the same as that of the upper end of the elastic sheet 5, and when the installation is carried out, the elastic sheet 5 provided with the powder metallurgy part 6 is inserted along the fixing groove 7 and falls into the positioning groove 8 for automatic positioning.

The working process of the embodiment is as follows:

turning the handle 302 to the position shown in fig. 4, lifting the connecting plate 303 to bring the pressing plate 9 to be lifted, inserting the elastic sheet 5 provided with the powder metallurgy part 6 along the fixing groove 7, falling into the positioning groove 8 for automatic positioning, then turning the handle 302 to the position shown in fig. 3, enabling the connecting plate 303 to fall into the groove 305 of the handle 302, enabling the connecting plate 303 to be pressed downwards by the spring 304 to bring the pressing plate 9 to be pressed downwards, so that the powder metallurgy part 6 is pressed into the elastic sheet 5, the pressing force is uniform, the product quality is uniform and reliable, then putting the whole welding self-locking mechanism into welding equipment for welding, taking out the welding self-locking mechanism after welding is completed, turning the handle 302 to the position shown in fig. 4, taking out the welded workpiece, and completing the welding process. Because the work piece is installed and is gone on outside the welding machine, can prepare a plurality of welding self-locking mechanism simultaneously, install powder metallurgy spare 6 and shell fragment 5 in turn, put into the welding machine in turn and weld, improved work efficiency greatly.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims

1. The utility model provides an shell fragment and powder metallurgy component assembly welding self-locking mechanism which characterized in that: including the base that is used for fixed shell fragment and the clamp plate that is used for compressing tightly powder metallurgy spare, the base both sides are provided with guide assembly and auto-lock subassembly respectively, guide assembly is used for right the clamp plate compresses tightly the direction, the auto-lock subassembly is used for right the clamp plate provides packing force and locking function.

2. The assembling, welding and self-locking mechanism for the elastic sheet and the powder metallurgy part according to claim 1, wherein: the guide assembly comprises two vertical long holes arranged on two sides of the base.

3. The assembling, welding and self-locking mechanism for the elastic sheet and the powder metallurgy part according to claim 1, wherein: the self-locking assembly comprises a pressure adjusting screw in threaded connection with the base, a handle, a connecting plate and a spring are sequentially sleeved on the outer circumferential surface of the pressure adjusting screw from the side of the base to the head of the screw, the connecting plate is connected with two ends of the pressing plate, and the spring presses the connecting plate so as to press the pressing plate.

4. The assembling, welding and self-locking mechanism for the elastic sheet and the powder metallurgy part according to claim 3, wherein: the pressure adjusting screw is a half-thread screw, the screwed base section is a thread section, and the outer circumferential surface is sleeved with the connecting plate section which is a polished rod.

5. The assembling, welding and self-locking mechanism for the elastic sheet and the powder metallurgy part according to claim 3, wherein: one end of the handle is provided with a round hole for the pressure adjusting screw to pass through, a groove is formed in the side, facing the connecting plate, of the handle, the connecting plate falls into the groove, and an inclined surface transition is formed between the groove and the surface of the handle.

6. The assembling, welding and self-locking mechanism for the elastic sheet and the powder metallurgy part according to claim 3, wherein: the two ends of the pressing plate are provided with clamping grooves connected with the connecting plate, and the width of each clamping groove is the same as the thickness of the connecting plate.

7. The assembling, welding and self-locking mechanism for the elastic sheet and the powder metallurgy part according to claim 1, wherein: the base is provided with a positioning plate at the position where the elastic sheet is placed, and the positioning plate is fixed with the base through a positioning pin.

8. The assembling, welding and self-locking mechanism for the elastic sheet and the powder metallurgy part according to claim 7, wherein: the base is provided with a fixing groove for inserting the elastic sheet, the positioning plate is provided with a positioning groove corresponding to the fixing groove, and the shape of the positioning groove is the same as that of the upper end of the elastic sheet.