CN213436505U - Tensioning device of flanging hydraulic press - Google Patents

Abstract

The utility model discloses a tensioning device of a flanging hydraulic press, which belongs to the field of dies, can not cause the situation that the local part of a product is not tensioned, the tensioning device of the utility model comprises an upper die base, a lower die base and a die body positioned between the upper die base and the lower die base, the mould body is internally provided with a cavity and consists of a plurality of split modules which are mutually abutted to form the cavity, each split module is provided with at least two inclined surface platforms along the vertical direction, a wedge block which is abutted against the inclined plane table is arranged in the cavity, at least two fixed rods are arranged between the upper die base and the lower die base, the wedge block is in sliding fit with the at least two fixing rods, the tensioning die further comprises a driving assembly for controlling the wedge block to move up and down in the cavity, and a reset assembly for enabling the plurality of split modules to reset is arranged in the cavity. The embodiment of the utility model provides a can be applied to products such as hydraulic press, press.

Description

Tensioning device of flanging hydraulic press

[ technical field ] A method for producing a semiconductor device

The utility model relates to the field of molds, especially, relate to a tight device that rises of hem hydraulic press.

[ background of the invention ]

In some production processes, the product needs to be tensioned through a tensioning die to perform some operations, such as flanging, the conventional tensioning die adopts a four-section die to perform tensioning, but when the product is tensioned, the situation that part of the product is not tensioned occurs.

[ Utility model ] content

The utility model aims to solve the technical problem that overcome the not enough and tight device that rises that proposes the hem hydraulic press of prior art, the local condition that is not tight by rising of product can not appear.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the tensioning device of the flanging hydraulic machine comprises an upper die base, a lower die base and a die body located between the upper die base and the lower die base, wherein a cavity is formed in the die body, the die body is composed of a plurality of split modules, the split modules mutually abut to form the cavity, at least two inclined plane platforms are arranged on each split module along the vertical direction, wedge blocks abutting against the inclined plane platforms are arranged in the cavity, at least two fixing rods are arranged between the upper die base and the lower die base, the wedge blocks are in sliding fit with the at least two fixing rods, the tensioning device further comprises a driving assembly for controlling the wedge blocks to move up and down in the cavity, and a reset assembly for resetting the split modules is arranged in the cavity.

The utility model provides a tension device, its mould body comprises polylith components of a whole that can function independently module, when needing to rise the tight operation, the voussoir in the cavity slides, through the cooperation with the inclined plane platform, can convert the axial displacement of voussoir into the radial displacement of polylith components of a whole that can function independently module, make polylith components of a whole that can function independently module outwards move simultaneously, thereby rise the tight product of cover outside the mould body, set up multiunit inclined plane platform, can make polylith components of a whole that can function independently module keep steady in the process of rising and tightly producing, avoid appearing the crooked condition of components of a whole that can function independently module, reset assembly can be in the process that the voussoir resets, make polylith components of a whole that can function independently module;

the fixed rod is used for fixing the upper die base and the lower die base, so that the position between the upper die base and the lower die base can be kept unchanged, the die body can be limited between the upper die base and the lower die base, in addition, the fixed rod can also play a role in guiding and positioning, and the wedge block can only slide up and down in the cavity without a rotating trend.

Further, the tensioning device also comprises a guide assembly for guiding the plurality of split modules to move. The guide assembly can ensure that the split module can be moved according to a specific route, so that a better tensioning effect is ensured, and the split module can be smoothly reset.

Further, the guide assembly comprises a guide groove and a guide key, the guide groove is formed in the upper die holder and the guide groove is formed in the lower die holder, and the guide key is arranged on the die body; or, the guide assembly comprises a guide groove and a guide key, the upper die base and the lower die base are both provided with the guide key, and the guide groove is formed in the die body. The cooperation of guide way and direction key has realized that the components of a whole that can function independently module can move according to specific route at upper die base and die holder, and the cooperation intensity of the two is high, and the position skew can not appear in the components of a whole that can function independently module.

Further, the driving assembly comprises a driving shaft fixedly connected with the wedge block and a driving piece for controlling the driving shaft to stretch and retract in the cavity. The driving shaft has small volume and does not occupy large space in the cavity, and the driving piece provides forces in different directions so as to control the wedge block to slide up and down in the cavity.

Further, the driving shaft penetrates through the upper die holder and the lower die holder and is in sliding fit with the upper die holder and the lower die holder. The upper die base and the lower die base can be used for stabilizing the driving shaft, so that the driving shaft is prevented from being bent, and the stability of the whole structure is ensured.

Furthermore, two side edges of the split modules are inclined planes, and the inclined planes of two adjacent split modules are abutted. The inclined plane plays a limiting role, the distance between each split module and the central position of the cavity can be limited, and in the resetting process of the split modules, the split modules move to the central position of the cavity under the action of the resetting assembly until the split modules are abutted.

Furthermore, the plurality of split modules at least comprise four split modules which are opposite front and back, left and right and four split modules which are distributed at four opposite angles. The existing tensioning mold only comprises four split modules which are distributed at all directions, in the tensioning process, the position between the four split modules is not tensioned due to the fact that the split modules are not arranged, and the distance between every two adjacent split modules is large, so that the position on a product is not tensioned.

Furthermore, the reset assembly comprises a plurality of reset springs, the split modules which are opposite in front, back, left and right are connected through the reset springs, and the split modules at four opposite angles are connected with the fixed rod through the reset springs. Reset spring is from taking elasticity, and when polylith components of a whole that can function independently module was pushed away by the voussoir and is carried out the tight operation that rises, reset spring was pulled open and is saved elasticity, and during reseing, components of a whole that can function independently module can be pulled back the normal position gradually under the effect of elasticity, and simple structure is with low costs, and position change can not appear in the dead lever, and the reset spring who is connected with the dead lever also can not receive the influence.

These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The invention will be further explained with reference to the drawings:

fig. 1 is a cross-sectional view of a tensioning device in an embodiment of the present invention;

fig. 2 is a schematic structural view of a tensioning device in an embodiment of the present invention;

fig. 3 is a schematic structural view of the tension device in the embodiment of the present invention when tensioning.

Reference numerals:

an upper die holder 100, a lower die holder 110, a fixing rod 120 and a guide rod 130;

the mold comprises a mold body 200, a cavity 210, a split module 220, a bevel table 230 and a wedge 240;

a guide groove 300, a guide key 310;

a return spring 400;

a drive shaft 500, a driver 510.

[ detailed description ] embodiments

The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 3, the embodiment provides a tensioning device of a flanging hydraulic press, which includes an upper die holder 100, a lower die holder 110, and a die body 200 located between the upper die holder 100 and the lower die holder 110, a cavity 210 is provided in the die body 200, the die body 200 is composed of a plurality of split modules 220, the split modules 220 are mutually abutted to form the cavity 210, at least two inclined surface platforms 230 are provided on each split module 220 along a vertical direction, a wedge 240 abutted to the inclined surface platforms 230 is provided in the cavity 210, the tensioning device further includes a driving assembly for controlling the wedge 240 to move up and down in the cavity 210, and a reset assembly for resetting the split modules 220 is provided in the cavity 210.

The shape of the die body 200 is not regular cylinder or ellipse, but ellipse-like, a closed cylinder surrounded by a plurality of arcs has a fillet, the die body 200 is composed of eight split modules 220, including four split modules 220 which are opposite to each other, front, back, left and right, and four split modules 220 which are distributed at four opposite angles, when tensioning operation is required, the wedge 240 in the cavity 210 slides, through the cooperation with the inclined plane table 230, the axial displacement of the wedge 240 can be converted into the radial displacement of the split modules 220, so that the split modules 220 move outwards at the same time, thereby tensioning a product sleeved outside the die body 200, the plurality of groups of inclined plane tables 230 are arranged, the split modules 220 can be kept stable in the process of tensioning the product, the situation that the split modules 220 are bent is avoided, the resetting assembly can gradually reset the split modules 220 in the process of resetting the wedge 240, so as to facilitate the next tensioning operation;

the existing tensioning mold only comprises four split modules which are distributed at the front, back, left and right, in the tensioning process, the position between the four split modules is not tensioned due to the fact that the split modules are not arranged, and the distance between every two adjacent split modules is large, so that the position on a product is not tensioned.

Of course, the four split modules at the front, the rear, the left and the right can be divided into eight blocks so as to achieve better tensioning effect.

For the convenience of distinction, the four split modules at the front, back, left and right are designated by 220a, and the four diagonal split modules are designated by 220 b.

The mold body 200 at least comprises two groups of inclined plane platforms 230, one group is arranged at the position of the mold body 200 close to the upper end, the other group is arranged at the position of the mold body 200 close to the lower end, and the number of the wedges 240 is the same as that of the inclined plane platforms 230, so that the upper end and the lower end of the mold body 200 are reinforced by the inclined plane platforms 230, are not easy to bend, and cannot influence the tensioning effect.

The upper die holder 100 and the lower die holder 110 are used for limiting the vertical displacement of the split modules 220, fixing rods 120 are arranged between the upper die holder 100 and the lower die holder 110, the number of the fixing rods 120 is not less than two, preferably four, the four fixing rods 120 are respectively arranged at four corners of the upper die holder 100 and the lower die holder 110, the fixing rods 120 are fixedly connected with the upper die holder 100 and the lower die holder 110, so that the upper die holder 100 and the lower die holder 110 can not be subjected to position change, in addition, four guide rods 130 are also arranged at the central positions, close to the cavity 210, between the upper die holder 100 and the lower die holder 110, the wedge blocks 240 are in sliding fit with the guide rods 130 and the fixing rods 120, the weight of the wedge blocks 240 is large, under the support of a plurality of rods, the situation that the wedge blocks 240 cannot rotate or shift in the sliding process can be ensured.

The tensioning device further comprises a guide assembly, the guide assembly is used for guiding the split modules 220, so that the split modules 220 move according to a specific route to ensure a good tensioning effect, the guide assembly comprises guide grooves 300 and guide keys 310, the upper end and the lower end of each split module 220 are respectively provided with the guide keys 310, the lower end face of the upper die base 100 and the upper end face of the lower die base 110 are respectively provided with the guide grooves 300, two guide keys 310 are respectively arranged at the upper end and the lower end of the four split modules 220a at the front, the rear, the left and the right, the guide grooves 300 are firmly matched with the guide keys 310, the split modules 220 cannot deviate, and when the split modules 220 move, the guide grooves 300 limit the moving direction of the guide keys 310 to ensure the displacement direction of the split modules 220. The guide key can also be arranged on the upper die base and the lower die base, and the guide groove is arranged on the split module.

The guide groove 300 may limit the displacement of the split module 220 toward the center of the cavity 210, so that the split module 220 may be maintained at a predetermined position between the upper die base 100 and the lower die base 110 when it is reset.

In order to further limit the displacement of the split modules 220 to the center of the cavity 210, two side edges of each split module 220 are provided with inclined surfaces, the inclined surfaces of two adjacent split modules 220 are abutted, the inclined surfaces play a limiting role and can limit the distance between each split module 220 and the center position of the cavity 210, and in the resetting process of the split modules 220, the split modules 220 are moved to the center position of the cavity 210 under the action of the resetting assembly until the split modules 220 are abutted.

Referring to fig. 3, wherein the reset assembly includes a plurality of reset springs 400, the reset springs 400 have elastic force, when the plurality of split modules 220 are pushed by the wedge 240 to perform a tensioning operation, the reset springs 400 are pulled to store the elastic force, when the split modules 220 are reset, the split modules 220 can be gradually pulled back to the original position under the action of the elastic force, the springs provide restoring force, the structure is simple, the cost is low, the front and rear split modules 220a and the left and right split modules 220a are connected by the reset springs 400, the width of the four split modules 220a is large, it is easy to set the reset springs 400, the distance between the four split modules 220b is large, if the four split modules are connected by the reset springs 400, the positions of the fixing rod 120 and the guide rod 130 between the upper die holder 100 and the lower die holder 110 need to be arranged, and the number and the positions of the reset springs 400 between the front and rear split modules 220a and the left and right split, therefore, the return springs 400 of the four split modules 220b are connected to the fixing rods 120, and the four fixing rods 120 are respectively disposed at four corners of the upper die base 100 and the lower die base 110 and are closer to the four split modules 220b, so that the return springs 400 are connected to the fixing rods 120 without affecting the sliding of the other split modules 220 and the wedge 240, and in order to maintain the stability during the return, a plurality of return springs 400 are disposed on each split module 220, so that the split modules 220 can be moved in synchronization as a whole.

Referring to fig. 1 and 2, in this embodiment, the driving assembly includes a driving shaft 500 fixedly connected to the wedge 240 and a driving member 510 for controlling the driving shaft 500 to extend and retract in the cavity 210, the driving shaft 500 has a small volume and does not occupy a large space in the cavity 210, the driving member 510 is an oil cylinder or an electric cylinder and can provide a large force to control the wedge 240 to slide up and down in the cavity 210, the driving shaft 500 further passes through the upper die base 100 and the lower die base 110 and is in sliding fit with the upper die base 100 and the lower die base 110, and the driving member 510 is located below the lower die base 110, so that the driving member 510 does not interfere with the movement of the wedge 240 and does not occupy a space in the cavity 210, and the driving shaft 500 is further reinforced by the upper die base 100 and the lower die base 110 and is not easily bent, and can.

In addition, an adjusting assembly can be arranged for adjusting the stroke of the driving shaft, so that the tension force can be controlled. The driving part can be controlled by a program to achieve the purpose of controlling the stroke of the driving shaft.

The embodiment of the utility model provides a can be applied to products such as hydraulic press, press.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims (8)

1. The tensioning device of the flanging hydraulic press is characterized in that: including upper die base, die holder, be located the upper die base with the mould body between the die holder, this internal cavity that is equipped with of mould, the mould body comprises polylith components of a whole that can function independently module, polylith components of a whole that can function independently module offsets each other and forms the cavity, every components of a whole that can function independently module is gone up and is equipped with two piece at least inclined plane platforms along vertical direction, be equipped with the voussoir that offsets with the inclined plane platform in the cavity, the upper die base with be equipped with two piece at least dead levers between the die holder, the voussoir with two piece at least dead lever sliding fit, the tight device that rises of hem hydraulic press still is including control the voussoir is in the drive assembly that reciprocates in the cavity, be equipped with the.

2. The tensioning device of the flanging hydraulic press according to claim 1, characterized in that: the tensioning device of the flanging hydraulic press also comprises a guide assembly for guiding the plurality of split modules to move.

3. A tensioning device of a flanging hydraulic press according to claim 2, characterized in that: the guide assembly comprises a guide groove and a guide key, the guide groove is formed in the upper die base and the lower die base, and the guide key is arranged on the die body; or, the guide assembly comprises a guide groove and a guide key, the upper die base and the lower die base are both provided with the guide key, and the guide groove is formed in the die body.

4. The tensioning device of the flanging hydraulic press according to claim 1, characterized in that: the driving assembly comprises a driving shaft fixedly connected with the wedge block and a driving piece controlling the driving shaft to stretch and retract in the cavity.

5. The tensioning device of the flanging hydraulic press as claimed in claim 4, characterized in that: the driving shaft penetrates through the upper die holder and the lower die holder and is in sliding fit with the upper die holder and the lower die holder.

6. A tensioning device of a creasing hydraulic machine as defined in any one of claims 1 to 5, characterised in that: the two side edges of the split modules are inclined planes, and the inclined planes of two adjacent split modules are abutted.

7. A tensioning device of a creasing hydraulic machine as defined in any one of claims 1 to 5, characterised in that: the plurality of split modules at least comprise four split modules which are opposite front and back, left and right and four split modules which are distributed at four opposite angles.

8. The tensioning device of the flanging hydraulic press as claimed in claim 7, characterized in that: the reset assembly comprises a plurality of reset springs, the split modules which are opposite from front to back and left to right are connected through the reset springs, and the split modules at four opposite angles are connected with the fixed rod through the reset springs.

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