CN213728903U

CN213728903U - Servo tightening structure

Info

Publication number: CN213728903U
Application number: CN202022528429.1U
Authority: CN
Inventors: 陈永锋; 周文斌
Original assignee: Changzhou Yuma Precision Stamping Parts Co ltd
Current assignee: Yuma precision technology (Jiangsu) Co.,Ltd.
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-07-20
Anticipated expiration: 2030-11-05

Abstract

The utility model discloses a servo tightening structure, its technical scheme main points are: including tightening seat, tightening seat cushion, iron core part, tightening seat cushion all install in the top of die holder, tightening seat cushion is located under the tightening seat, tightening seat's roof intermediate position is provided with tightens up the chamber, tightening seat cushion's roof intermediate position is provided with the die, the cross sectional shape of die with tighten up the cross sectional shape profile in chamber unanimous, just the cross sectional area of die is greater than tighten up the cross sectional area in chamber, tightening seat's the position of being close to the four corners has all seted up down the pin hole, tightening seat cushion be close to the four corners position and have all seted up the pin hole, be fixed with a plurality of circle riveting points on the iron core part. The utility model discloses an integral seat of tightening up alone with the die combination, reduce the processing and the assembly error of tightening up seat and tightening strip, reach whole tightening up and the more even purpose of whole volume of tightening up.

Description

Servo tightening structure

Technical Field

The utility model relates to an ultrasonic welding technical field, concretely relates to servo tightening structure.

Background

The iron core of the motor is used as a core component in the motor, namely, a magnetic core, and the iron core (magnetic core) plays a role of great weight in the whole motor, is used for increasing the magnetic flux of the inductance coil, and realizes the maximum conversion of electromagnetic power.

And servo one-row four-row motor core generally all adopts the mode that whole tighten-up seat adds single tighten-up strip when mould design in the past, and the iron core punching press gets into the tighten-up strip in the mould, but because of tightening means can produce for the multicomponent and assemble accumulative error, the irregular shape of its appearance can lead to hardly accurately detecting the tightening amount of every tighten-up strip, from this, the multicomponent can bring accumulative error, also can tighten up because of single tighten-up strip tightens up inhomogeneous and draw hair, serious can lead to punching press die fracture. In view of this, we propose a servo tightening structure.

SUMMERY OF THE UTILITY MODEL

To the problem mentioned in the background art, the utility model aims at providing a servo tightening structure to solve the problem mentioned in the background art.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a servo tightening structure, includes the seat of tightening up, tightens up seat cushion, iron core part, the seat of tightening up, tighten up the seat cushion and all install in the top of die holder, the seat cushion of tightening up is located under the seat of tightening up, the roof intermediate position of tightening up the seat is provided with tightens up the chamber, the roof intermediate position of tightening up the seat cushion is provided with the die.

Through adopting above-mentioned technical scheme, in motor core's production process, will be a plurality of the iron core part is placed in tightening up the intracavity, through the cooperation with the die, will be a plurality of under the effect of external mould the iron core part is folded and is pressed, does not have under the condition of tightening up the strip for it is little that the whole tightens up the accumulative error.

Preferably, the height of the tightening seat is two thirds of the cushion block of the tightening seat, the cross-sectional shape of the female die is consistent with the cross-sectional shape of the tightening cavity, and the cross-sectional area of the female die is larger than that of the tightening cavity.

Through adopting above-mentioned technical scheme, tighten up the seatpad piece and can provide firm support, the die then can provide suitable punching press place when carrying out the stack of a plurality of iron core parts, has improved the steadiness in the iron core production process.

Preferably, the positions, close to the four corners, of the tightening seat are provided with lower pin holes, and the positions, close to the four corners, of the cushion blocks of the tightening seat are provided with upper pin holes.

Through adopting above-mentioned technical scheme, lower round pin hole is corresponding with last round pin hole, and through outside spliced pole, it is right to utilize lower round pin hole and last round pin hole tighten up the seat cushion with tighten up the seatpad piece and prescribe a limit to for in the production process of iron core, tighten up the seat and tighten up the seatpad piece and can remain the state firm and parallel and level all the time.

Preferably, the lower pin holes and the upper pin holes are four in number and are circular, the positions of the lower pin holes and the upper pin holes correspond to each other one by one, and the aperture of the upper pin holes symmetrical along the center is larger than that of the corresponding lower pin holes.

Through adopting above-mentioned technical scheme, under the effect of outside guide pillar, the guide pillar passes the through-hole and stretches into to the recess in, provides further restriction to tighten up the seat and tighten up the seatpad piece.

Preferably, the structure of the iron core part is consistent with that of the tightening cavity, a plurality of round riveting points are fixed on the iron core part, and the round riveting points are distributed in the middle of each part of the iron core part.

Through adopting above-mentioned technical scheme, the circle riveting point distributes evenly on the iron core part, under the effect of outside pressure, can make the superposition coefficient between a plurality of iron core parts improve greatly, cooperates simultaneously and tightens up the seat and tighten up a cushion, can make the superposition coefficient further increase.

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

through adopting the independent and die combination of integral seat that tightens up, reduce the processing and the assembly error of tightening up seat and tightening up the strip, reach whole tightening up and the more even purpose of whole volume of tightening up, it is little to wholly tighten up the accumulative error simultaneously, and fixed with punching press die pin location, improve the uniformity of punching press thickness, wholly assemble the terminal surface and obtain improving, solved and tightened up the problem that the hair is drawn because of single tightening up inhomogeneous arouses, serious meeting leads to punching press die fracture.

Drawings

FIG. 1 is a top view of the tightening base of the present invention;

FIG. 2 is a schematic cross-sectional view of the seat cushion block of the present invention;

FIG. 3 is a front view of the present invention showing the tightening base and the cushion block of the tightening base;

fig. 4 is a schematic structural diagram of the iron core component of the present invention.

Reference numerals: the tightening seat comprises a tightening seat 1, a tightening cavity 11, a groove 12, a lower pin hole 13, a tightening seat cushion block 2, a female die 21, an upper pin hole 22, a through hole 23, an iron core part 3 and a round riveting point 4.

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.

Referring to fig. 1-3, a servo tightening structure includes a tightening seat 1, a tightening seat cushion block 2, and an iron core part 3, wherein the tightening seat 1 and the tightening seat cushion block 2 are both mounted above a lower die base, the tightening seat cushion block 2 is located right below the tightening seat 1, the cross-sectional shapes of the tightening seat 1 and the tightening seat cushion block 2 are completely consistent, and the tightening seat 1 and the tightening seat cushion block 2 are convenient to keep consistent in the production process of the iron core.

Referring to fig. 1-2, a tightening cavity 11 is disposed at a middle position of a top wall of the tightening seat 1, and is used for placing the iron core parts 3, so as to overlap and tighten the plurality of iron core parts 3 under an external acting force, and a concave die 21 corresponding to the tightening cavity 11 is disposed at a middle position of the top wall of the tightening seat cushion block 2, and is used for supporting the iron core in a production process. Receive tight seat 1 be close to four corners position and all seted up lower pin hole 13, receive tight seat cushion 2 be close to four corners position and all seted up with the corresponding last pin hole 22 of lower pin hole 13, wherein, lower pin hole 13 and last pin hole 22 all are equipped with four, be the two and be circular, position one-to-one between the two, a pair of aperture along the last pin hole 22 of central symmetry is greater than the aperture of the lower pin hole 13 of correspondence, make when the compound die, the pin can be more easily accurate pass last pin hole 22 and lower pin hole 13, and then make the production process of iron core more accurate swift.

Referring to fig. 1-2, grooves 12 are formed in positions, close to the tightening cavity 11, of the tightening seat 1, through holes 23 corresponding to the grooves 12 are formed in positions, close to the female die 21, of the tightening seat cushion 2, the grooves 12 correspond to the through holes 23, circle centers of the grooves 12 and the through holes 23 are located on the same straight line, and under the action of an external guide pillar, the guide pillar penetrates through the through holes 23 and extends into the grooves 12, so that further limitation is provided for the tightening seat 1 and the tightening seat cushion 2.

Referring to fig. 4, the structure of iron core part 3 is unanimous with the structure that tightens up chamber 11, make in stamping process, utilize the integral chamber 11 of tightening up to make up with die 21 alone, reduce processing and the assembly error who tightens up seat 1 and tightening strip, and be fixed with a plurality of circles on the iron core part 3 and rivet knot point 4, circle is riveted knot point 4 and is distributed in each part intermediate position of iron core part 3, circle is riveted knot point 4 and is distributed evenly on iron core part 3, under the effect of outside pressure, can make the superposition coefficient between a plurality of iron core parts 3 improve greatly.

Referring to fig. 1-3, the height of the tightening seat 1 is two thirds of the height of the tightening seat cushion block 2, the cross-sectional shape of the female die 21 is consistent with the cross-sectional shape profile of the tightening cavity 11, and the cross-sectional area of the female die 21 is larger than that of the tightening cavity 11, the female die 21 can provide a proper punching place when a plurality of iron core parts 3 are stacked, the stability in the iron core production process is improved, meanwhile, the integral tightening seat 1 is independently combined with the female die 21, the processing and assembling errors of the tightening seat 1 and the tightening strip can be reduced, the purposes of overall tightening and uniform overall tightening amount are achieved, and the problems that tightening galling is caused by uneven tightening of a single tightening strip and the punching female die is cracked seriously can be caused are solved.

Referring to fig. 1-2, it is worth supplementing that, because the tightening strip is eliminated, the integral tightening accumulated error is reduced, and the tightening accumulated error is fixed with the pin of the punching die, so that the consistency of the punching thickness during the production of the iron core is improved, and the integral assembly end face is improved.

The working principle is as follows: in actual iron core production process, at first will tighten up seat 1, tighten up seat cushion 2 and all install in the top of die holder, tighten up seat cushion 2 and be located tightening up under seat 1, make tightening up seat cushion 2 and tighten up and closely contradict between the seat 1, place a plurality of iron core parts 3 in tightening up chamber 11 afterwards, open outside stamping device (can make modes such as hydraulic pressure punching press and servo punching press), stamping device cooperation circle riveting point 4 carries out the punching press, owing to adopt the integral piece of tightening up to make up with die 21 alone, the processing of tightening up seat 1 and tightening strip has been reduced, assembly error has been reduced, reach the more even mesh of whole volume of tightening up and whole volume of tightening up.

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. Servo tightening structure, including tightening seat (1), tightening cushion piece (2), iron core part (3), its characterized in that: the die is characterized in that the tightening seat (1) and the tightening seat cushion block (2) are mounted above the lower die seat, the tightening seat cushion block (2) is located under the tightening seat (1), a tightening cavity (11) is arranged in the middle of the top wall of the tightening seat (1), and a concave die (21) is arranged in the middle of the top wall of the tightening seat cushion block (2).

2. The servo tightening structure according to claim 1, wherein: the height of the tightening seat (1) is two thirds of that of the tightening seat cushion block (2), the cross section of the female die (21) is consistent with that of the tightening cavity (11), and the cross section area of the female die (21) is larger than that of the tightening cavity (11).

3. The servo tightening structure according to claim 1, wherein: the tightening seat is characterized in that lower pin holes (13) are formed in positions, close to four corners, of the tightening seat (1), and upper pin holes (22) are formed in positions, close to four corners, of the tightening seat cushion blocks (2).

4. The servo tightening structure according to claim 3, wherein: the lower pin holes (13) and the upper pin holes (22) are four and are circular, the positions of the lower pin holes and the upper pin holes are in one-to-one correspondence, and the aperture of the upper pin holes (22) which are symmetrical along the center is larger than that of the corresponding lower pin holes (13).

5. The servo tightening structure according to claim 1, wherein: the structure of iron core part (3) with tighten up chamber (11) unanimously, just be fixed with a plurality of circles on iron core part (3) and rivet knot point (4), the circle rivet knot point (4) distribute in each part intermediate position of iron core part (3).