CN220526822U - Relay electromagnetic assembly fixture with bidirectional riveting function - Google Patents

Abstract

The utility model discloses a relay electromagnetic assembly fixture with a bidirectional riveting function, which comprises an upper die and a lower die which are opposite up and down; the upper die comprises an upper rivet head, and a plurality of rivet flowers are uniformly distributed on the lower end surface of the upper rivet head along the circumferential direction; the lower die comprises a lower rivet head, a positioning seat, a lifting plate, a mounting plate and a bottom plate; a guide post and a lower rivet are vertically arranged on the mounting plate, and the upper end surface of the lower rivet is also provided with a rivet flower; the mounting plate is fixed on the bottom plate, the lifting plate is positioned above the mounting plate, and the lifting plate is connected with the lifting plate by threads through the through holes on the bottom plate and the mounting plate sequentially through the unloading screw; the unloading screw is sleeved with a supporting spring, and the lifting plate is forced to move upwards to a certain distance from the mounting plate through the supporting spring; the upper end of the lower rivet head extends into a corresponding positioning hole on the lifting plate, and the guide post extends into a corresponding guide hole on the lifting plate; the positioning seat is arranged on the lifting plate, and the electromagnetic assembly to be riveted is positioned through the positioning seat; the tool realizes one-time press riveting forming of the relay electromagnetic assembly.

Description

Relay electromagnetic assembly fixture with bidirectional riveting function

Technical Field

The utility model belongs to the technical field of relay manufacture, and particularly relates to a relay electromagnetic assembly fixture with a bidirectional riveting function.

Background

The relay electromagnetic assembly mainly comprises four parts, namely an upper yoke, a lower yoke, an iron core and a coil. The electromagnetic assembly riveting process is to rivet an upper yoke, a lower yoke, an iron core and a coil together through riveting, and the riveting process requires: a. the upper yoke iron and the lower yoke iron are parallel, and the top surfaces of the upper yoke iron and the lower yoke iron are on the same plane; b. the iron core is vertically and firmly connected with the upper yoke and the lower yoke.

Because the lower die in the traditional die is not provided with the lower rivet head, 8 times of repeated riveting are needed to be carried out on the joints of the upper yoke, the lower yoke and the iron core in the whole electromagnetic assembly riveting process in order to ensure the riveting quality. And manually adjusting the lower die every time of press riveting, and then performing press riveting after visually aligning the upper die and the lower die. The execution of the process flow inevitably causes the problems of riveting position deviation, non-parallel upper yoke iron and lower yoke iron working surfaces and the like in the riveting process of the electromagnetic assembly, and the upper yoke iron and lower yoke iron working surfaces are manually adjusted later, so that the surfaces of the upper yoke iron and the lower yoke iron are easily damaged by clamping, the appearance quality of parts is influenced, the qualification rate of working procedures is low, the production period is long due to repeated working procedures, and the labor intensity of staff is high.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a relay electromagnetic assembly fixture with a bidirectional riveting function. The technical problems to be solved by the utility model are realized by the following technical scheme:

the relay electromagnetic assembly tool with the bidirectional riveting function comprises an upper die and a lower die, wherein the upper die and the lower die are arranged up and down oppositely;

the upper die comprises an upper rivet head, and a plurality of rivet flowers are uniformly distributed on the lower end surface of the upper rivet head along the circumferential direction; the lower die comprises a lower rivet head, a positioning seat, a lifting plate, a mounting plate and a bottom plate; the mounting plate is vertically provided with a guide post and the lower rivet, and a plurality of rivets are uniformly distributed on the upper end surface of the lower rivet along the circumferential direction; the mounting plate is fixed on the bottom plate, and the lifting plate is positioned above the mounting plate and sequentially penetrates through the bottom plate and the through holes on the mounting plate through the discharging screw to be in threaded connection with the lifting plate; the unloading screw is sleeved with a supporting spring, and the lifting plate is forced to move upwards by the supporting spring, so that a certain distance is reserved between the lifting plate and the mounting plate;

the upper end of the lower rivet head extends into a corresponding positioning hole on the lifting plate, and the guide post extends into a corresponding guide hole on the lifting plate; the positioning seat is arranged on the lifting plate, the electromagnetic assembly to be riveted is positioned through the positioning seat, and the upper rivet, the lower rivet and the iron core of the electromagnetic assembly to be riveted are coaxially arranged.

Further, the guide posts are at least two and are positioned on two sides of the mounting plate.

Further, a backing plate is fixed between the mounting plate and the bottom plate, a counter bore is arranged on the lower end face of the mounting plate, the lower rivet head and the lower end head of the guide post are clamped in the counter bore and are seated on the backing plate, and the discharging screw penetrates through the corresponding through hole on the backing plate.

Further, the upper die further comprises a positioning sleeve, and strip-shaped holes are vertically and symmetrically formed in two sides of the positioning sleeve; limiting pins are transversely and symmetrically fixed on two sides of the lower end of the upper rivet, the positioning sleeve is sleeved at the lower end of the upper rivet, and the limiting pins extend into the strip-shaped holes; the upper end of the upper rivet head is provided with a circular boss and sleeved with a spring, and the spring is positioned between the circular boss and the positioning sleeve.

Further, the upper end of the positioning seat is provided with a U-shaped clamping opening, the upper end of the lifting plate is provided with two positioning plates, a bayonet formed between the two positioning plates corresponds to the U-shaped clamping opening up and down, and the upper yoke iron and the lower yoke iron of the electromagnetic assembly to be riveted are respectively clamped through the U-shaped clamping opening and the bayonet.

Further, the diameter of the through hole on the backing plate is smaller than that of the through hole on the bottom plate.

The utility model has the beneficial effects that:

1. the upper die and the lower die adopt the spring pressing mode with the riveting patterns, so that the relay electromagnetic assembly is formed by one-time riveting, the assembly and disassembly times and the riveting times of the relay electromagnetic assembly are greatly reduced on the premise of ensuring the quality, the labor intensity is effectively reduced, and the production efficiency is improved;

2. according to the utility model, aiming at the electromagnetic assemblies with different sizes and riveting requirements, the riveting of the electromagnetic assemblies of the relay with the same type can be realized only by replacing different positioning seats, upper and lower riveting heads, and the electromagnetic assemblies of the relay with the same type have extremely high popularization value;

3. the utility model has the advantages of simple structure, quick installation, convenient operation and accurate positioning.

The present utility model will be described in further detail with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the upper die;

FIG. 3 is an enlarged schematic view of the portion A in FIG. 2;

FIG. 4 is a schematic view of the lower die (positioning seat and lifter plate are hidden in this view);

FIG. 5 is a schematic view of the present utility model in use;

fig. 6 is a schematic structural view of the assembled electromagnetic assembly.

Reference numerals illustrate:

1-upper die; 2-lower die; 3-an electromagnetic assembly to be riveted; 1-1, riveting heads; 1-2-riveting; 1-3 of a positioning sleeve; 1-4-springs; 1-5-limiting pins; 1-6-bar-shaped holes; 1-7-circular bosses; 2-1-lower rivet head; 2-2-positioning seats; 2-3-lifting plates; 2-4-mounting plates; 2-5-base plate; 2-6-guide posts; 2-7-unloading screws; 2-8-supporting springs; 2-9 backing plates; 2-10-fixing screws; 2-11-positioning pins; 2-12-U-shaped clamping openings; 2-13 positioning plates; 3-1-iron core; 3-2-upper yoke; 3-3-lower yoke; 3-4-coil.

Detailed Description

The present utility model will be described in further detail with reference to specific examples, but embodiments of the present utility model are not limited thereto.

Referring to fig. 1 to 6, the utility model provides a relay electromagnetic assembly fixture with a bidirectional riveting function, which specifically comprises an upper die 1 and a lower die 2, wherein the upper die 1 and the lower die 2 are arranged up and down oppositely and are both arranged on a workbench surface of a hand wrench; the upper die 1 comprises an upper rivet head 1-1, and 4 rivet flowers are uniformly distributed on the lower end surface of the upper rivet head 1-1 along the circumferential direction; the end face of the riveting flower is in a blade shape, the riveting flower applies acting force to the upper end face of the iron core 3-1 in the electromagnetic assembly 3 to be riveted, and the upper end face of the iron core 3-1 is forced to radially open so as to be riveted with the upper yoke 3-2.

The lower die 2 comprises a lower rivet head 2-1, a positioning seat 2-2, a lifting plate 2-3, a mounting plate 2-4 and a bottom plate 2-5; the mounting plate 2-4 is vertically provided with a guide post 2-6 and the lower rivet head 2-1, 4 rivets are uniformly distributed on the upper end surface of the lower rivet head 2-1 along the circumferential direction, and the rivet structure is the same as that of the upper rivet head 1-1; the mounting plate 2-4 is fixed on the bottom plate 2-5; the bottom plate 2-5 is arranged in a shape matched with a hand spanner press, so that the lower die 2 is convenient to fix and replace; the lifting plate 2-3 is positioned above the mounting plate 2-4 and sequentially penetrates through the bottom plate 2-5 and the through holes on the mounting plate 2-4 through the unloading screw 2-7 to be in threaded connection with the lifting plate 2-3; the unloading screw 2-7 is sleeved with a supporting spring 2-8; the lifting plate 2-3 is forced to move upwards by the supporting spring 2-8, so that a certain distance is reserved between the lifting plate 2-3 and the mounting plate 2-4, and meanwhile, the lifting plate 2-3 floats above the mounting plate 2-4 under the action of the supporting spring 2-8; in addition, the diameter of the through hole on the mounting plate 2-4 is smaller than that of the through hole on the bottom plate 2-5, so that the unloading screw 2-7 can move upwards in the bottom plate 2-5 along with the lifting plate 2-3 in the process of moving upwards, but the screw head of the unloading screw 2-7 is limited by the size of the through hole of the mounting plate 2-4, so that the unloading screw 2-7 cannot fall out of the mounting plate 2-4.

The lower rivet head 2-1 is vertically arranged on the mounting plate 2-4, and the upper end of the lower rivet head 2-1 extends into a corresponding positioning hole on the lifting plate 2-3; the guide posts 2-6 extend into the guide holes corresponding to the lifting plates 2-3, the number of the guide posts 2-6 is two and the guide posts are positioned at two sides of the mounting plate 2-4, so that guide is provided for the movement of the lifting plates 2-3 and the lower rivet heads 2-1, the lower rivet heads 2-1 can be ensured to be in full contact with the lower end face of the iron core 3-1, the smoothness of the riveting process is ensured, and the riveting quality is improved; the positioning seat 2-2 is arranged on the lifting plate 2-3, the electromagnetic assembly 3 to be riveted is positioned through the positioning seat 2-2, and meanwhile, the upper rivet head 1-1, the lower rivet head 2-1 and the iron core 3-1 in the electromagnetic assembly 3 to be riveted are coaxially arranged. The handle of the hand wrench is pulled, the upper rivet head 1-1 moves downwards under the action of external force until being in contact with the upper end face of the iron core 3-1, then the upper rivet head continues to move downwards, the supporting spring 2-8 is compressed, the lifting plate 2-3 is driven to move downwards, the lower rivet head 2-1 is exposed out of the upper end face of the lifting plate 2-3 and is in contact with the lower end face of the iron core 3-1, the stroke set by the hand wrench is completed, and the upper end face and the lower end face of the iron core 3-1 are riveted with the upper yoke iron 3-2 and the lower yoke iron 3-3 respectively.

Further, in order to ensure reliable operation of the lower rivet head 2-1 and the guide post 2-6, a base plate 2-9 is fixed between the mounting plate 2-4 and the base plate 2-5, the mounting plate 2-4 and the base plate 2-9 are fixed through a fixing screw 2-10 and a locating pin 2-11; the lower end face of the mounting plate 2-4 is provided with a counter bore, and the lower end heads of the lower rivet head 2-1 and the guide post 2-6 are clamped in the counter bore and are seated on the backing plate 2-9, so that the lower rivet head 2-1 and the guide post 2-6 are fixed in the mounting plate 2-4; the unloading screw 2-7 passes through the corresponding through hole on the backing plate 2-9, and the diameter of the through hole is smaller than that of the through hole on the bottom plate 2-5.

The backing plate 2-9 and the mounting plate 2-4 are made of 45# steel with good hardness, and the lower rivet 2-1 can be fixed and supported.

Further, the upper die 1 further comprises a positioning sleeve 1-3, a spring 1-4 and a limiting pin 1-5, wherein strip-shaped holes 1-6 are vertically and symmetrically formed in two sides of the positioning sleeve 1-3; the limiting pins 1-5 are transversely and symmetrically fixed on two sides of the lower end of the upper rivet head 1-1, the positioning sleeve 1-3 is sleeved at the lower end of the upper rivet head 1-1, the limiting pins 1-5 extend into the strip-shaped holes 1-6, the positioning sleeve 1-3 can move up and down along the strip-shaped holes 1-6, the upper end of the upper rivet head 1-1 is provided with a circular boss 1-7 and sleeved with the spring 1-4, and the spring 1-4 is positioned between the circular boss 1-7 and the positioning sleeve 1-3; when the hand spanner drives the upper rivet head 1-1 to move downwards, the positioning sleeve 1-3 is firstly contacted with the upper yoke iron 3-2, and applies pressure to the upper yoke iron 3-2, so that the upper yoke iron 3-2 is ensured to be parallel to the lower yoke iron 3-3, and meanwhile, the upper rivet head 1-1 is completely aligned with the upper end surface of the iron core 3-1, so that the press riveting position is ensured; then the upper rivet head 1-1 continues to move downwards, the spring 1-4 is stressed and compressed, the upper rivet head 1-1 exposes the limiting pin 1-5, and acting force is applied to the upper end face of the iron core 3-1, so that riveting is completed.

Further, the upper end of the positioning seat 2-2 is provided with a U-shaped clamping opening 2-12, the shape of the inner surface of the U-shaped clamping opening 2-12 is the same as that of the upper yoke 3-2, the upper end of the lifting plate 2-3 is provided with two positioning plates 2-13, a bayonet formed by the two positioning plates 2-13 corresponds to the U-shaped clamping opening 2-12 up and down, and the upper yoke 3-2 and the lower yoke 3-3 of the electromagnetic assembly 3 to be riveted are respectively clamped through the U-shaped clamping opening 2-12 and the bayonet, so that the upper yoke 3-2, the lower yoke 3-3, the iron core 3-1 and the coil 3-4 can be positioned accurately and are not loosened in the riveting process; meanwhile, the shape of the positioning seat 2-2 can ensure the rapid assembly and disassembly of the electromagnetic assembly 3, so that the time is saved.

The working process of the utility model is as follows:

when the relay electromagnetic assembly is needed to be riveted, an operator firstly installs an upper die 1 and a lower die 2 of the assembly tool on a working table surface of a spanner press, adjusts the tool position, then installs an electromagnetic assembly 3 to be riveted into a positioning seat 2-2 according to requirements, pulls a spanner press handle, the upper yoke 3-2 and the upper end face of an iron core 3-1 are riveted together under the action of external force, a spring 1-4, a positioning sleeve 1-3 and the upper yoke 3-2, meanwhile, a lifting plate 2-3 is stressed to move downwards, a lower yoke 3-3 and the lower end face of the iron core 3-1 are riveted together under the guide action of a guide post 2-6 by means of a support of a backing plate 2-9, and after the riveting, the lifting plate 2-3 returns to the initial position under the reaction of a support spring 2-8, the operator only needs to take down the riveted electromagnetic assembly.

According to the riveting process of the electromagnetic assembly of the relay, the electromagnetic assembly fixture with the bidirectional riveting function, which is less influenced by human factors and accurate in positioning, is designed, the upper yoke, the lower yoke, the iron core and the coil are installed in the lower die according to the drawing requirements in the riveting process of the electromagnetic assembly by designing the upper die and the lower die to be in a spring pressing mode with riveting patterns, the upper yoke, the lower yoke, the iron core and the coil can be riveted together only by pressing riveting once, and the working surfaces of the upper yoke and the lower yoke are not required to be manually adjusted later, so that the assembly and disassembly of parts and the pressing riveting times are greatly reduced, the flatness of the upper yoke and the lower yoke is ensured, and the riveting quality and the production efficiency of the electromagnetic assembly of the relay are effectively improved.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims (6)

1. The relay electromagnetic assembly assembling tool with the bidirectional riveting function is characterized by comprising an upper die and a lower die, wherein the upper die and the lower die are arranged up and down oppositely;

the upper die comprises an upper rivet head, and a plurality of rivet flowers are uniformly distributed on the lower end surface of the upper rivet head along the circumferential direction; the lower die comprises a lower rivet head, a positioning seat, a lifting plate, a mounting plate and a bottom plate; the mounting plate is vertically provided with a guide post and the lower rivet, and a plurality of rivets are uniformly distributed on the upper end surface of the lower rivet along the circumferential direction; the mounting plate is fixed on the bottom plate, and the lifting plate is positioned above the mounting plate and sequentially penetrates through the bottom plate and the through holes on the mounting plate through the discharging screw to be in threaded connection with the lifting plate; the unloading screw is sleeved with a supporting spring, and the lifting plate is forced to move upwards by the supporting spring, so that a certain distance is reserved between the lifting plate and the mounting plate;

the upper end of the lower rivet head extends into a corresponding positioning hole on the lifting plate, and the guide post extends into a corresponding guide hole on the lifting plate; the positioning seat is arranged on the lifting plate, the electromagnetic assembly to be riveted is positioned through the positioning seat, and the upper rivet, the lower rivet and the iron core of the electromagnetic assembly to be riveted are coaxially arranged.

2. The assembly fixture for the relay electromagnetic assembly with the bidirectional riveting function according to claim 1, wherein at least two guide posts are arranged on two sides of the mounting plate.

3. The assembly fixture for the relay electromagnetic assembly with the bidirectional riveting function according to claim 2, wherein a base plate is fixed between the mounting plate and the bottom plate, counter bores are formed in the lower end face of the mounting plate, lower heads of the lower rivet head and the guide post are clamped in the counter bores and are seated on the base plate, and the discharging screw penetrates through a corresponding through hole in the base plate.

4. The assembly fixture for the relay electromagnetic assembly with the bidirectional riveting function according to claim 3, wherein the upper die further comprises a positioning sleeve, and strip-shaped holes are vertically and symmetrically formed in two sides of the positioning sleeve; limiting pins are transversely and symmetrically fixed on two sides of the lower end of the upper rivet, the positioning sleeve is sleeved at the lower end of the upper rivet, and the limiting pins extend into the strip-shaped holes; the upper end of the upper rivet head is provided with a circular boss and sleeved with a spring, and the spring is positioned between the circular boss and the positioning sleeve.

5. The assembly fixture for the relay electromagnetic assembly with the bidirectional riveting function according to claim 4, wherein a U-shaped clamping opening is formed in the upper end of the positioning seat, two positioning plates are arranged at the upper end of the lifting plate, bayonets formed between the two positioning plates vertically correspond to the U-shaped clamping opening, and the upper yoke iron and the lower yoke iron of the electromagnetic assembly to be riveted are respectively clamped through the U-shaped clamping opening and the bayonets.

6. The assembly fixture for the relay electromagnetic assembly with the bidirectional riveting function according to claim 5, wherein the diameter of the through hole on the backing plate is smaller than the diameter of the through hole on the bottom plate.