CN220515130U - Sheet metal stamping device for elevator production - Google Patents

Abstract

The utility model discloses a sheet metal stamping device for elevator production, which comprises a base, wherein the upper surface of the base is provided with a cavity, the cavity comprises a storage part and a bending part, the storage part is in a cross shape, the bending part is in a rectangle, the bending part is positioned at the center of the storage part, the four corners of the base are provided with a first telescopic cylinder connected with a top plate, the lower bottom surface of the top plate is provided with four sliding grooves extending along diagonal lines, springs are arranged in the sliding grooves, stamping blocks gathering in a 'field' -shape are further arranged in the sliding grooves, a cross-shaped adjusting gap is formed between the four stamping blocks, a guide frame opposite to the adjusting gap is further erected on the base, and when the top plate descends, the guide frame is inserted into the adjusting gap and gradually expands the stamping blocks, so that the four stamping blocks slide along the sliding grooves to have the same edge as the bending size of a bottom plate of a car. Through above-mentioned structure for after the punching press is accomplished, four punching press pieces can gather together by oneself, need not to set up the drawing of patterns angle and can conveniently draw from the die with the car bottom plate, then can guarantee to be 90 contained angles after buckling between hem and the bottom plate body.

Description

Sheet metal stamping device for elevator production

Technical Field

The utility model relates to a sheet metal stamping device, in particular to a sheet metal stamping device for elevator production.

Background

The car floor is an important component of the elevator car for carrying the weight of passengers and cargo. The car bottom plate is a stamping part, the folded edges formed by folding the four sides of the stamping part are perpendicular to the bottom plate body, and after bolt holes are formed in the folded edges, the stamping part is connected with the car shell through bolts. The existing stamping mode is that the car bottom plate is pressed into the cavity, so that four folds at the edge of the bottom plate body are perpendicular to the car bottom plate, and when the car bottom plate is installed, the folds of the car bottom plate can conveniently enter the car. However, in practical situations, considering the demolding requirement, the included angle between the flange and the bottom plate body is usually larger than 90 degrees, so that when the car bottom plate is installed, the flange is difficult to be smoothly inserted into the car shell due to outward warping, a worker needs to press the car bottom plate into the car shell with great force, and in the process, the situation that buckling deformation occurs due to uneven stress when the car bottom plate is pressed into the car shell is very easy to occur.

Disclosure of Invention

In view of the above-mentioned drawbacks, an object of the present utility model is to provide a sheet metal stamping device for elevator production, so that a car bottom plate having a hemming angle of 90 ° with respect to a car body can be stamped.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a sheet metal stamping device for elevator production, includes the base, the die cavity is seted up to the upper surface of base, the die cavity includes by last thing portion and the kink of putting of connecting in proper order down, put thing portion and be the cross, the kink be the rectangle, just the kink is located and puts thing portion central point put, the first telescopic cylinder is established to base four angles, four first telescopic cylinder drive connect with the roof of base parallel, four spouts are seted up to the roof bottom surface, four spouts extend along the diagonal of roof, set up the spring in the spout, the roof below sets up four punching press pieces, four punching press pieces slide respectively and locate in the spout and be "field" style of calligraphy gathering under the effect of spring, four punching press pieces between form the regulation gap of cross, still erect on the base just to the guide frame of regulation, the guide frame is cross connection's by two pieces guide plate constitution, the cross section of guide plate is trapezoidal, when the roof descends to insert to four punching press pieces and make the adjustment gap and prop open to the same size along the punching press piece with the bottom plate edge.

Preferably, the included angle between the side wall of the storage part and the horizontal plane is larger than 90 degrees.

Preferably, the bending part is arranged in a penetrating way, the supporting plate is arranged in the bending part in a sliding way, and the bottom of the supporting plate is connected with a second telescopic cylinder for driving the supporting plate to lift.

The beneficial effects are that: 1. when the car bottom plate is stamped, the car bottom plate to be stamped is only required to be placed into the object placing part of the cavity, the car bottom plate is restrained in the object placing part and is accurately positioned, then the top plate is driven to descend, along with the lowering of the top plate, the guide frame enters into the adjusting gap, along with the continuous entering of the guide frame, the guide frame pushes away four stamping blocks along the sliding groove direction on the top plate, when the four stamping blocks are abutted to the car bottom plate, the four stamping blocks slide outwards to be in place, at the moment, the outer contour formed by the four stamping blocks is the contour shape of the car bottom plate to be stamped, and when the top plate is continuously lowered, the car bottom plate is pressed into the bending part from the object placing part, and the edge of the car bottom plate is bent by 90 degrees. It should be noted that, when the punching press of car bottom plate is complete, the roof rises, and the guide frame withdraws from adjusting the clearance gradually, and along with the withdrawal of guide frame, the spring promotes four punching press pieces and folds once more, and the punching press piece is disengaged with the hem after buckling 90 degrees, and the punching press piece can be convenient deviate from in the car bottom plate. The required draft angle in the traditional stamping die is not required to be arranged during demolding of the scheme, so that the angle between the folded edge and the bottom plate body in the stamped car bottom plate can be ensured to be accurate 90 degrees, and the car bottom plate can be conveniently inserted into the car shell during installation. 2. The included angle between the side wall of the storage part and the horizontal plane is larger than 90 degrees, so that the bottom plate of the car can conveniently enter the storage part. 3. When taking the car bottom plate that buckles well, can be ejecting with the car bottom plate through the backup pad that rises to make things convenient for the workman to take.

Drawings

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

FIG. 2 is a diagonal cross-sectional view of FIG. 1;

FIG. 3 is a front view in cross section of FIG. 1;

FIG. 4 is a cross-sectional view in the top view of FIG. 1;

fig. 5 is a top view of the base.

Reference numerals: 100. base 110, cavity 111, storage portion 112, bend 200, first telescoping cylinder 300, top plate 310, chute 400, punch block 410, adjustment gap 500, guide frame 510, guide plate 600, second telescoping cylinder 700, support plate 800, and spring.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The sheet metal stamping device for elevator production shown in fig. 1-5 comprises a base 100, wherein a cavity 110 is formed in the upper surface of the base 100. Specifically, the cavity 110 is composed of two parts, namely a storage part 111 with the same shape as the unbent car bottom plate and a bending part 112 with the same size as the bottom plate body of the car bottom plate after bending. The object placing part is in a cross shape, and the bending part is positioned at the center of the object placing part, so that when the car bottom plate is punched and bent, the four edges of the car bottom plate can be symmetrically bent. In addition, the bending part is a through structure, a supporting plate 700 capable of lifting up and down is slidably provided in the bending part, a second telescopic cylinder 600 longitudinally provided is connected to the lower bottom surface of the supporting plate, and precise control of the lifting state of the supporting plate is realized through the second telescopic cylinder. And four corners of the upper surface of the base are respectively provided with a first telescopic cylinder 200 which is longitudinally arranged, the upper ends of the four first telescopic cylinders are connected with a top plate 300, and the top plate and the bottom plate are mutually parallel. In addition, four sliding grooves 310 are formed in the lower surface of the top plate, the four sliding grooves are uniformly distributed in a spoke shape along the diagonal line of the top plate, and a spring 800 is arranged in each sliding groove. Meanwhile, four stamping blocks 400 are further arranged below the top plate 300, the four stamping blocks are distributed in a shape of a Chinese character 'tian', each stamping block is slidably arranged in a corresponding sliding groove, and the stamping blocks 400 are gathered under the action of a spring to form a cross-shaped adjusting gap 410.

In addition, a cross-shaped guide frame 500 is installed above the base 100, and faces the four pressing blocks 400. It should be noted that the guide frame is composed of two guide plates 510 that vertically intersect, and the cross section of the guide plates is trapezoidal, so that when the guide frame enters the adjusting gap, the guide frame can gradually open the four stamping blocks 500 in the closed state.

It should be noted that, when the four stamping blocks 500 descend to contact with the car bottom plate under the action of the top plate 300, the four stamping blocks slide outwards until the edge dimension is the same as the dimension of the car bottom plate bending, so as to ensure that the bending dimension of the car bottom plate is the design dimension.

In addition, in order to facilitate the placement of the car bottom plate into the placement part, the included angle between the side wall of the placement part and the horizontal plane is more than 90 DEG

Working principle: the workman places the car bottom plate that does not punch a hole in putting the thing portion, then drives the roof through first telescopic cylinder and descends, along with the roof descends, and the guide frame gets into in the regulation clearance, and then pushes away four punching press pieces to the size of car bottom plate through the guide frame, and then the roof continues to descend and impress the bottom plate body of car bottom plate into the kink in, the hem of car bottom plate takes place 90 kinks under the lateral wall of kink and the effect of punching press piece. After the bending is finished, the top plate retreats, the guide frame also gradually retreats from the adjusting gap after the punching blocks retreats from the bending part, the four punching blocks are folded under the action of the springs along with the retreating of the guide frame, the outer profile formed by the four punching blocks is reduced, and the four punching blocks can be conveniently separated from the bent car bottom plate. The drawing of patterns of this scheme need not with the help of the draft angle, just can not lead to the hem angle of buckling to reach accurate 90 circumstances to appear because of the existence of draft angle yet.

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

Claims (3)

1. Sheet metal stamping device is used in elevator production, its characterized in that: the device comprises a base (100), a cavity (110) is formed on the upper surface of the base (100), the cavity (110) comprises a storage part (111) and a bending part (112) which are sequentially connected from top to bottom, the storage part (111) is in a cross shape, the bending part (112) is rectangular, the bending part (112) is positioned at the center of the storage part (111), a first telescopic cylinder (200) is arranged at four corners of the base (100), four first telescopic cylinders (200) are in driving connection with a top plate (300) parallel to the base (100), four sliding grooves (310) are formed on the lower bottom surface of the top plate (300), the four sliding grooves (310) extend along the diagonal line of the top plate (300), springs (800) are arranged in the sliding grooves (310), four stamping blocks (400) are respectively arranged in the sliding grooves (310) and form a 'field' under the action of the springs (800), the four stamping blocks (400) are in a cross shape, the cross shape of the cross section of the guide plate (410) is formed by the cross-shaped guide plates (510) and the cross section of the guide plates (410) are arranged on the guide plates (510), when the top plate (300) descends, the guide frame (500) is inserted into the adjusting gap (410) and gradually expands the punching blocks (400), so that the four punching blocks (400) slide along the sliding groove (310) until the edges of the four punching blocks are the same as the bending size of the bottom plate of the car.

2. The sheet metal stamping device for elevator production as claimed in claim 1, wherein: the included angle between the side wall of the storage part (111) and the horizontal plane is larger than 90 degrees.

3. The sheet metal stamping device for elevator production as claimed in claim 2, wherein: the bending part (112) is arranged in a penetrating way, the supporting plate (700) is arranged in the bending part (112) in a sliding way, and the bottom of the supporting plate (700) is connected with the second telescopic cylinder (600) for driving the supporting plate to lift.