CN217702198U - Nested alignment push in device in opening - Google Patents

Abstract

The utility model discloses an nested alignment push in device in opening, include upper die base (1) and fixed die holder (9) that remove along a set of guide pillar (4), connect on upper die base (1) and be used for push in opening die head (3) of nested (5), the lower mould location core (10) that are used for fixing a position iron core shell (7) of connecting on the die holder, be equipped with between upper and lower die holder with guide pillar (4) fixed connection's last mould inner liner board (6), go up be equipped with on mould inner liner board (6) with the opening in nested (5) location fit spacing hole (61). The utility model discloses an embedded lagging of last mould once closes the mould with iron core housing end face contact earlier to and the mould head closes the mould with nested secondary in the spacing passing of spacing hole and the iron core housing of impressing in the opening, realized that nested completion pressure in the opening is joined in marriage the process under the condition that does not take place distortion, warp and iron core housing and damage, satisfy the manufacturing requirement.

Description

Nested alignment push in device in opening

Technical Field

The utility model relates to a machining equipment technical field for the preparation of car air conditioner electromagnetic clutch core housing, concretely relates to nested alignment push in device in opening.

Background

When the company develops a new electromagnetic coil assembly in the automobile air-conditioning clutch, different from the past, a customer requires that the surface of an iron core shell of the coil is electroplated with blue and white zinc, the inner diameter of a middle ring is required to be coated with modified poly-tetrachloroethylene, the two coatings cannot be compatible, and therefore, the two coatings need to be nested in one metal and are matched and pressed in after corresponding coatings are respectively made. Inner nesting interference push-out force: the requirement is more than 2000N, the thickness of the inner nesting is only 1 mm, the inner nesting is made by rolling an open cold-rolled steel strip, an open seam < =2.5mm, and the outer dimension of the inner nesting is larger than that of the inner nesting in working under the condition of no stress.

When the opening thin wall is internally nested in the interference press-in iron core shell, because the opening thin wall is not a closed metal ring, the axial and radial deformation is inevitable, and how to ensure that the iron core shell is placed before the press-in process under the interference pressure condition, the outer wall is not twisted and the inner wall is not deformed in the press-in process, the assembly body is convenient to take out after press-fitting after the press-in process, and the inner nest is ensured to be just inside the middle ring of the iron core shell, the opening of the iron core shell is required to be at a specified position, and the error is not more than +/-5 degrees.

The nesting in the opening is pressed in by interference, and the technical requirements of products cannot be guaranteed by using a conventional die. The size of a seam of the nested part in the opening is required to be less than 2.5mm, when the nested part is placed in a conventional die structure for trial production, as a result, when an upper die is just acted on the upper surface of the nested part, the outer diameter is increased due to the opening, then the height difference is increased, the stress is not uniform, the eccentric nested part in the opening is not completely pressed into the iron core shell, the upper die twists the nested part in the opening, the iron core shell is damaged, and even the die is damaged.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an nested alignment push in device in opening guarantees that nested in the opening under the condition that does not take place distortion, warp with the cooperation of iron core shell, satisfies the manufacturing requirement.

The utility model adopts the following technical scheme:

the utility model provides a nested alignment push in device in opening, includes upper die base and the fixed die holder that removes along a set of guide pillar, connects on the upper die base and is used for the lower mould location core that is used for fixing a position the iron core shell in the opening nested die head, the die holder of impressing, its characterized in that: an upper die embedded sleeve plate fixedly connected with the guide pillar is arranged between the upper die base and the lower die base, and a limiting hole in positioning fit with the inner embedded opening is formed in the upper die embedded sleeve plate; the upper die embedded sleeve plate is firstly contacted with the end face of the iron core shell by moving the upper die base, then the upper die embedded sleeve plate is limited by the limiting hole by the die head to penetrate through the opening, and finally the upper die embedded sleeve plate is pressed into the iron core shell.

Furthermore, the upper die base is connected with a distance bolt parallel to the guide pillar, the bolt head of the distance bolt and the upper die base form axial limiting, and the screw rod is fixedly connected with the upper die embedded sleeve plate.

Furthermore, the limiting hole comprises a large end placing area, a transition area and a vertical working area which are sequentially arranged along the pressing-in direction, wherein the large end placing area and the vertical working area are both round holes, the large end placing area is in clearance fit with the inner nesting of the opening, and the aperture of the large end placing area is larger than that of the vertical working area; the transition area is a taper hole.

Furthermore, a guide pin is connected to the lower die base, and a guide hole correspondingly matched with the guide pin is formed in the upper die embedded sleeve plate.

Furthermore, a group of positioning blocks used for limiting the excircle of the iron core shell are connected to the lower die base.

Further, the positioning block is a nylon positioning ring.

Compared with the prior art, the utility model discloses the beneficial effect of utensil:

1. this scheme is through last mould embedded lagging at first with the iron core shell terminal surface contact once close the mould to and the secondary that the mould head was in with nested through spacing the passing and the iron core shell of spacing hole in with the opening closes the mould, realized that nested accomplish under the condition that does not take place distortion, deformation and iron core shell damage in the opening and press the joining in marriage the process, satisfy the manufacturing requirement.

2. The arrangement of the distance bolts limits the maximum distance between the upper die embedded sleeve plate and the upper die base, and ensures that the upper die embedded sleeve plate and the upper die base are not completely separated in the die splitting process.

3. The limiting hole adopts a large end placing area, a transition area and a vertical working area which are sequentially connected, which not only facilitates the placing of the nesting in the opening, but also improves the alignment precision of the nesting in the opening.

4. The guide pin and the guide hole are arranged, so that the guide precision of the embedded sleeve plate in the upper die and the lower die seat is improved; the setting of locating piece has improved the positioning accuracy of iron core shell.

Drawings

FIG. 1 is a schematic view of the appearance structure of the embodiment of the present invention in the initial state;

FIG. 2 isbase:Sub>A schematic cross-sectional view taken along the line A-A in FIG. 1;

FIG. 3 is a schematic view of the shape structure of the primary mold closing in the embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view taken along the line B-B in FIG. 3;

FIG. 5 is a schematic view of the appearance structure of the secondary mold closing in the embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view taken along the line C-C in FIG. 5;

fig. 7 is a partially enlarged schematic view of the structure at I in fig. 2.

Description of reference numerals: 1. an upper die holder; 2. a guide sleeve; 3. a die head; 4. a guide post; 5. nesting in the opening; 6. A sleeve plate is embedded in the upper die; 61. a limiting hole; 61a, a large end placing area; 61b, transition zone; 61c, a vertical working area; 62. a pilot hole; 7. an iron core housing; 8. a pilot pin; 9. a lower die holder; 10. a lower die positioning core; 11. positioning a block; 12. a distance bolt; 13. a connecting portion.

Detailed Description

In order to make the present invention more clearly understood, the following description is made with reference to the accompanying drawings for further illustration of the nested aligning and pressing device in the opening of the present invention, and the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.

As shown in fig. 1 to 6, an inside-open-nesting alignment press-fitting device is used for press-fitting an inside-open-nesting into the inner diameter of the middle ring of a core housing 7 in an interference manner. The device comprises a rectangular plate-shaped lower die holder 9, wherein the lower die holder 9 is fixed on a vertical downward pressing equipment workbench. The center of the lower die base 9 is connected with a lower die positioning core 10 which is used for positioning the iron core shell 7 through fastening bolts.

An upper die base 1 which is parallel is arranged right above the lower die base 9, the upper die base 1 is a rectangular plate, the center of the lower surface of the upper die base is fixedly connected with a die head 3, and the axis of the die head 3 coincides with that of the positioned iron core shell 7. Wherein, the die head 3 is a cylinder and drives the inner nest 5 of the opening to press down through the end surface effect. The upper surface of the upper die base 1 is fixedly provided with a connecting part 13, the connecting part 13 is connected with a pressing end of a pressing device, and the specific structure of the pressing device can be adaptively arranged according to different pressing devices.

The upper die holder 1 is in sliding fit with a pair of guide posts 4 through guide sleeves 2 fixed with the upper die holder, and the guide sleeves 2 are positioned on diagonal lines passing through the center of the upper die holder 1 and distributed at two sides of the center of the upper die holder 1. A pair of distance bolts 12 parallel to the guide post 4 penetrate through the upper die holder 1, the bolt heads of the distance bolts 12 are positioned in counter bores of the upper die holder 1, and the counter bores are arranged on the other diagonal line passing through the center of the upper die holder 1 and distributed on two sides of the center of the upper die holder 1.

An upper die embedded sleeve plate 6 which is parallel to the upper die and the lower die is arranged between the upper die base and the lower die base. The guide post 4 is fixedly connected with an upper die embedded sleeve plate 6 through shaft hole matching; and a screw rod of the distance bolt 12 is in threaded connection with the upper die embedded sleeve plate 6. The distance bolt 12 limits the maximum distance between the upper die base 1 and the upper die embedded sleeve plate 6, and the guide pillar 4 guides the upper die base 1 and the upper die embedded sleeve plate 6 to move along the axis of the upper die embedded sleeve plate 6.

And a limiting hole 61 is formed in the upper die embedded sleeve plate 6, and the axis of the limiting hole 61 coincides with the axis of the die head 3. As shown in fig. 7, the limiting hole 61 is a through hole, and includes a large end placing area 61a, a transition area 61b and a vertical working area 61c, which are sequentially arranged along the pressing direction of the inner nest 5 of the opening, wherein the large end placing area 61a and the vertical working area 61c are both straight holes, and the transition area 61b is a taper hole smoothly connected with the transition area and inclined at a small angle. The large end placing area 61a is matched with the outer circle of the opening inner nesting 5 in a large clearance mode, when the opening inner nesting 5 is located in the large end placing area 61a, the opening inner nesting 5 can be adjusted in a slight inclination, deviation and the like, and the opening inner nesting 5 can be conveniently placed; the large end placing area 61a is larger than the aperture of the vertical working area 61c, and when the inner nest 5 of the opening is positioned in the vertical working area 61c, the inner nest 5 of the opening is limited in the radial direction, so that the inner nest only moves in the axial direction and does not twist in the radial direction. According to the requirement, an opening indicating line (not marked in the figure) of the opening inner nesting 5 is further arranged on the upper surface of the upper die inner nesting plate 6, so that the alignment and identification of the opening position are facilitated.

In order to further improve the positioning accuracy of the iron core shell 7, a set of positioning blocks 11 is further arranged on the lower die base 9, the positioning blocks 11 are nylon positioning rings fixed on the lower die base 9 through flat-head screws, and the positioning scratch of the iron core shell 7 can be reduced by adopting nylon materials. The positioning blocks 11 are distributed along the circular outline of the iron core shell 7, so that the outer edge of the positioning blocks 11 is fully contacted with the shell surface of the iron core shell 7.

In addition, considering the influence of manufacturing and assembling precision, the upper die insert pocket plate 6 may be deviated when moving down. To this end, a pair of pilot pins 8 are connected to the upper surface of the lower die base 9, and pilot holes 62 are provided in the upper die nest plate 6 to be fitted with the pilot pins 8. The two pilot holes 62 are distributed on two sides of the center of the upper die inner embedded sleeve plate 6, and the pilot holes 62 can be matched with the guide posts 4 and the upper die inner embedded sleeve plate 6 or can be arranged independently. The guide pin 8 and the guide hole 62 are matched in shape accurately, so that the phenomenon that the upper die embedded sleeve plate 6 moves downwards and deviates is reduced, and the qualified rate of finished products is improved.

In this embodiment, the height of the middle ring of the iron core shell 7 is smaller than that of the outer ring thereof, and in order to ensure that the peripheral area of the lower surface of the limiting hole 61 can only be pressed on the end surface of the middle ring of the iron core shell 7, the lower surface of the upper die embedded bushing plate 6 is adaptively arranged according to the shape of the end surface of the iron core shell 7, and the specific avoiding structure is not limited in this application.

Description of the working process of this embodiment:

the device is integrally positioned on a workbench of the pressing equipment and is reliably connected with the pressing equipment. The iron core shell 7 is positioned on the lower die holder 9, and the opening position of the opening inner nest 5 is aligned with the opening indicating line of the upper die inner nest plate 6 and is placed in the large end placing area 61a.

Description of the mold closing sequence:

the device has two closing actions in the mould closing process, and the sequence of the two actions needs to be controlled:

before closing the mold: the pressing end of the pressing device moves downwards to drive the upper die holder 1, the upper die embedded sleeve plate 6 and the die head 3 to move downwards.

Closing the mold first: along with the downward movement of the upper die inner embedded sleeve plate 6, the guide pin 8 is in guide fit with the guide hole 62, the lower end face of the upper die inner embedded sleeve plate 6 stops moving after contacting with the upper end face of the middle ring of the iron core shell 7, the guide pillar 4 and the distance bolt 12 fixed on the upper die inner embedded sleeve plate also stop moving, and the upper die base 1 and the die head 3 continue to slide downward along the guide pillar 4.

And (5) closing the mold: the in-opening nest 5 moves from the large end placement region 61a to the transition region 61b as the die 3 is pressed down. At this time, the die 3 is pressed against the inside-open nest 5 and moved downward, and the inside-open nest 5 is gradually closed and aligned by the tapered action of the transition portion 61b. Then, the inner open nest 5 enters the vertical working area 61c from the transition area 61b, the end face of the die head 3 is completely contacted with the inner open nest 5 along with the pressing-in of the inner open nest 5, and the axis of the inner open nest 5 is completely coincided with the axis of the iron core shell 7. When the opening inner nesting 5 leaves the upper die inner nesting plate 6 and is pressed into the middle ring of the iron core shell 7, the opening inner nesting 5 is limited by the vertical working area 61c and the middle ring of the iron core shell 7 together and the die head 3 is pressed downwards, so that the phenomena of distortion, deformation, damage to the iron core shell 7 and the like of the opening inner nesting 5 are avoided.

Description of the mold opening sequence:

the device has two separate actions in the mold opening process, and the sequence of the two actions is as follows:

the upper die holder 1 and the die head 3 are driven to be separated along with the upward movement of the lower pressing end of the lower pressing device;

when the upper die holder 1 continues to move until the head of the distance bolt 12 contacts the bottom surface of the matching counter bore of the upper die holder 1, the embedded sleeve plate 6 of the upper die is driven to be separated together;

and the pressing end of the pressing device continues to move upwards until the distance between the upper die embedded bushing plate 6 and the lower die holder 9 meets the operation requirement, and then the iron core shell 7 of the embedded bushing 5 in the opening is pressed in an interference manner and taken out.

Generally speaking, the utility model discloses under the prerequisite that satisfies the manufacturing requirement that nested and iron core shell press-fit in the opening, made things convenient for nested placing in the opening, improved production efficiency.

The above examples of the present invention are only examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And such obvious changes and modifications which fall within the spirit of the invention are deemed to be covered by the present invention.

Claims (6)

1. The utility model provides a nested alignment push in device in opening, includes upper die base (1) and fixed die holder (9) that remove along a set of guide pillar (4), connects on upper die base (1) and is used for the lower mould location core (10) that are used for fixing a position iron core shell (7) of die head (3), the die holder of nested (5) in the opening of impressing, its characterized in that: an upper die embedded sleeve plate (6) fixedly connected with the guide post (4) is arranged between the upper die base and the lower die base, and a limiting hole (61) in positioning fit with the opening embedded sleeve (5) is formed in the upper die embedded sleeve plate (6); the upper die embedded sleeve plate (6) is firstly contacted with the end face of the iron core shell (7) by moving the upper die base (1), then the die head (3) is used for limiting the opening embedded sleeve (5) to pass through the limiting hole (61), and finally the upper die embedded sleeve plate is pressed into the iron core shell (7).

2. The nested alignment press-in device in an opening of claim 1, wherein: the upper die base (1) is connected with a distance bolt (12) parallel to the guide pillar (4), the bolt head of the distance bolt (12) and the upper die base (1) form axial limiting, and a screw rod is fixedly connected with an upper die embedded sleeve plate (6).

3. The nested alignment press-in device in an opening of claim 2, wherein: the limiting hole (61) comprises a large end placing area (61 a), a transition area (61 b) and a vertical working area (61 c) which are sequentially arranged along the pressing-in direction, wherein the large end placing area (61 a) and the vertical working area (61 c) are both round holes, the large end placing area (61 a) is in clearance fit with the opening inner nest (5), and the aperture of the large end placing area is larger than that of the vertical working area (61 c); the transition area (61 b) is a tapered hole.

4. An in-opening nesting alignment press-in device according to claim 1 or 3, wherein: the lower die holder (9) is connected with a guide pin (8), and the upper die embedded sleeve plate (6) is provided with a guide hole (62) correspondingly matched with the guide pin (8).

5. The in-opening nested alignment press-in device as claimed in claim 4, wherein: and the lower die holder (9) is connected with a group of positioning blocks (11) for limiting the excircle of the iron core shell (7).

6. The nested alignment press-in device in an opening of claim 5, wherein: the positioning block (11) is a nylon positioning ring.

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