CN219151345U

CN219151345U - Bending cutter for four-side inward-turning door plate

Info

Publication number: CN219151345U
Application number: CN202320168392.7U
Authority: CN
Inventors: 李明亮; 戴琨毅; 黄伟军
Original assignee: Xiamen Wenzhong Steel Sheet Products Co ltd
Current assignee: Xiamen Wenzhong Steel Sheet Products Co ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-06-09
Anticipated expiration: 2033-02-08

Abstract

The utility model discloses a bending cutter for a four-side inward-turning door plate, which comprises the following components: the middle pressing piece comprises a loading part fixedly connected with the power end, an inverted trapezoid cutter body extending from the loading part to the position to be bent, and matching parts connected to two sides of the cutter blade of the cutter body; the side pressing piece comprises a side sliding block which is in sliding fit with the cutter body, and a matching groove which is formed in one side of the side sliding block, close to the cutter body, and is in sliding fit with the matching part; the sum of the bottom surface of the side sliding block and the length of the cutter body is equal to the length of the position to be bent, the whole bending cutter can overcome the obstruction of inner flanging at two sides by means of secondary pushing, the other two inner flanging are bent, a door plate with four edges turned inwards is formed, and therefore the bending of a complex structure can be completed by only one cutter, and the processing efficiency is higher.

Description

Bending cutter for four-side inward-turning door plate

Technical Field

The utility model relates to a bending tool, in particular to a bending tool for a four-side inner-turned door plate.

Background

The bending machine is a machine capable of bending a thin plate, the machine is divided into a manual bending machine or an automatic bending machine according to requirements, the manual bending machine continuously adjusts the position of the thin plate manually, the automatic bending machine automatically changes the position of the thin plate through a movable clamp, and the precision of the automatic bending machine is more accurate, so that the press plate is required to be bent through a bending cutter no matter the manual bending machine or the automatic bending machine.

The most classical bending product is C-shaped steel, and through the position of continuous regulation sheet metal, the sheet metal of one side is bent twice, and both sides are bent four times altogether, forms the C-shaped steel structure of both sides varus, and the trace of stamping of bending is not seen completely to the C-shaped steel after bending, and the processing effect is splendid.

However, when the existing C-shaped steel is only turned inwards on two sides, the turned edges on two sides of the existing C-shaped steel are processed and shaped when the door plate turned inwards on four sides is processed, and due to the blocking of the turned edges on two sides, a bending cutter cannot penetrate into the bending lines of the two other turned edges, only a part of the bending lines can be bent by using a cutter with smaller size, and the situation that deformation or incomplete bending is possibly caused on the part not pressed by the cutter, so that the molded turned-in door plate is uneven and does not meet the requirement of production quality.

Disclosure of Invention

The utility model provides a bending cutter for a four-side inward-turning door plate, which can effectively solve the problems.

The utility model is realized in the following way:

a bending tool for a four-sided in-turned door panel, comprising:

the middle pressing piece comprises a loading part fixedly connected with the power end, an inverted trapezoid cutter body extending from the loading part to the position to be bent, and matching parts connected to two sides of the cutter blade of the cutter body;

the side pressing piece comprises a side sliding block which is in sliding fit with the cutter body, and a matching groove which is formed in one side of the side sliding block, close to the cutter body, and is in sliding fit with the matching part;

the sum of the length of the bottom surface of the side sliding block and the cutter body is equal to the length of the position to be bent.

As a further improvement, the loading part comprises a vertical mounting end and a horizontal mounting end fixedly connected with the vertical mounting end, and both sides of the vertical mounting end are provided with V-shaped mounting openings upwards.

As a further improvement, the matching part comprises a solid end integrally formed with the cutter body, an inner clamping end connected with the solid end and facing away from one side of the cutter body, and the solid end and the inner clamping end are clamped in the matching groove.

As a further improvement, the inner clamping end comprises a free groove and a limiting groove, wherein the limiting groove is positioned above the free groove and is communicated with the free groove.

As a further improvement, the sliding block further comprises a locking piece connected between the side sliding block and the matching part, and the locking piece penetrates through the side sliding block and is inserted into the free groove and/or the limiting groove.

As a further improvement, the side slider includes a side connection block slidably fitted with the fitting portion, and a side pressing block connected below the side connection block.

As a further improvement, the inner side of the side pressurizing block and the bottom of the solid end are both provided with an outer sealing piece.

The beneficial effects of the utility model are as follows:

according to the utility model, through the matching of the side pressing piece and the middle pressing piece, when the door plate with four edges turned inwards is processed, the side pressing piece can firstly enter between the two turned inwards and is pressed to the position to be bent, then the middle pressing piece is pressed down again, so that the inverted trapezoid cutter body pushes the side pressing piece to the two sides until the bottom surface of the side pressing piece is pushed to be flush with the bottom surface of the cutter body, the middle pressing piece also enters between the two turned inwards, the whole bending cutter can overcome the obstruction of the turned inwards at the two sides by a secondary pushing mode, and the other two turned inwards are bent to form the door plate with four edges turned inwards, so that the bending of a complex structure can be completed by only one cutter, and the processing efficiency is higher.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a bending tool for a four-side inner door panel according to the present utility model.

Fig. 2 is an exploded view of a bending tool for a four-sided in-turned door panel according to the present utility model.

Fig. 3 is an enlarged view of region B in fig. 2.

Fig. 4 is a schematic perspective view of a side press according to the present utility model.

Fig. 5 is a schematic diagram showing an operation state of a bending tool for a four-side inside-out door plate according to the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In the description of the present utility model, the terms "first," "second," and the like 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 defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The utility model provides a door plant of four sides varus, generally need two sections cutters of bending in the process, firstly carry out the bending of two turn-ups through conventional cutter of bending, afterwards, the other cutter of recycling is bent two other turn-ups, perhaps, directly carry out the pressure of non-full limit under the hindrance of two turn-ups, the former leads to the reduction of machining efficiency easily, need carry out the switching of a plurality of cutters, the latter then reduces the quality of finished product easily, the finished product quality of formation is relatively poor, whichever mode all can cause adverse effect, in order to solve above-mentioned technical problem, the scheme has put forward as follows:

referring to fig. 1-5, a bending tool for a four-sided in-turned door panel, comprising: the middle pressing piece 1 comprises a loading part 11 fixedly connected with a power end, an inverted trapezoid cutter body 12 extending from the loading part 11 to a position to be bent, and matching parts 13 connected to two sides of the cutter blade of the cutter body 12; a side pressing member 2, wherein the side pressing member 2 includes a side slider 21 slidably engaged with the cutter body 12, and an engagement groove 22 provided on a side of the side slider 21 adjacent to the cutter body 12 and slidably engaged with the engagement portion 13; the sum of the length of the bottom surface of the side slider 21 and the cutter body 12 is equal to the length of the position to be bent.

In this embodiment, the power end may be a ram of an automatic bending machine, and the ram drives the middle pressing member 1 to perform primary and secondary bending operations, which may be a ram of a manual bending machine, and the primary and secondary bending operations may be performed under the driving of manpower, so that the primary and secondary bending operations may be performed, and different bending devices may be selected according to the different used components.

In this embodiment, if the cutter body 12 is adopted, the side pressing member 2 will expand to two sides under the effect of the cutter body 12 of inverted trapezoid, while the side to be bent can be pressed, but the whole side to be bent cannot be covered, so that the cutter body 12 of inverted trapezoid adopted in this embodiment is gradually lengthened from the bottom along the upper length, the gap between the two side inner edges can be fit at the initial stage, and then the cutter body 12 is pressed down again, before the second pressing, the side pressing member 2 is already pressed against the side to be bent, and after the second pressing of the middle pressing member 1, the side pressing member 2 will expand to two sides under the effect of the cutter body 12 of inverted trapezoid until the sum of the bottom surface of the side sliding block 21 and the length of the cutter body 12 is equal to the length of the position to be bent, and the whole line of the position to be bent can be pressed down by the power end, thus achieving the bending effect.

It should be emphasized that the bottom surface of the side sliding block 21 and the bottom surface of the cutter body 12 are made of the same thickness and the same material, so that a uniform pressing force can be ensured to be formed during the bending process, the side sliding block 21 includes a side connecting block 211 slidably matched with the matching portion 13, and a side pressing block 212 connected below the side connecting block 211, wherein the thickness and the material of the side pressing block 212 and the cutter body 12 are the same.

In order to enable the stroke between the middle pressing member 1 and the side pressing member 2 to follow a certain track so as to control the pressing force, so that the sum of the length of the bottom surface of the side sliding block 21 and the length of the cutter body 12 is equal to the length of the position to be bent when pressing down each time, two sides of the middle pressing member 1 are provided with matching parts 13, and the side pressing members 2 on two sides are correspondingly provided with matching grooves 22, and the middle pressing member 1 realizes the pressing down in a stable direction by sliding of the matching parts 13 in the matching grooves 22 in the side pressing member 2.

After the pressing process is finished, the middle pressing piece 1 needs to be lifted upwards, at the moment, because the middle pressing piece 1 loses external pressure, the side pressing piece 2 cannot form pressure any more, the side pressing piece 2 can automatically slide downwards under the clamping of gravity and slide to the covering area at the outermost edge of the middle pressing piece 1, and the door plate and the inward flanging cannot be touched by the middle pressing piece 1 or the side pressing piece 2 during pushing.

Because the four sides of the four-side inward turning door plate are all mutually attached and vertical, the middle pressing piece 1 and the side pressing piece 2 cannot be directly pressed down at the position to be bent in a vertical mode, and in the embodiment, the middle pressing piece 1 and the side pressing piece 2 press the position to be bent in a mode that the inclination angle of the middle pressing piece 1 and the side pressing piece 2 is 45 degrees with the horizontal plane, so that the position to be bent is bent upwards to form a mode conforming to the door plate.

In this embodiment, the connection between the loading portion 11 and the power end is used to enable the pressure head to drive the whole cutter to press down or move up, in order to improve the connection effect between the loading portion 11 and the power end, the loading portion 11 includes a vertical mounting end 111, two lateral sides of the vertical mounting end 111 are provided with V-shaped mounting openings 1111, and the power end is fastened on the V-shaped mounting openings 1111 through the anchor ear effect, so as to improve the matching effect between the two.

In addition, since the middle pressing member 1 and the side pressing member 2 are pressed down at an angle of 45 °, the whole pressing force is actually carried on the loading portion 11, so that the loading portion 11 needs a certain strength, a horizontal mounting end 112 fixedly connected with the vertical mounting end 111 is further provided on the basis of the vertical mounting end 111, and a certain supporting force can be provided when the pressing force is transmitted to the position through the thickened horizontal mounting end 112, and the breakage at the loading portion 11 is avoided.

It should be emphasized here that although the intermediate die 1 is divided into three parts, i.e., the loading part 11, the cutter body 12, the mating part 13, etc., in practice, all three parts are machined on the same component, and all three parts are integrated, and are well reflected in terms of the utilization rate of materials and the overall operation strength.

Correspondingly, the matching portion 13 is also a solid portion, and the function of the matching portion 13 in this embodiment is equivalent to the sliding block function in the sliding matching mechanism, but not only the sliding block function, but also a certain limit guiding function, so that the matching portion 13 includes a solid end 131 integrally formed with the cutter body 12, an inner clamping end 132 connected to the solid end 131 and facing away from one side of the cutter body 12, the solid end 131 and the inner clamping end 132 are clamped in the matching groove 22, the solid end 131 and the inner clamping end form a "convex" structure so as to facilitate the clamping fit with the matching groove 22, and meanwhile, the groove body in the inner clamping end 132 can be used for matching with other structures, so that the fit between the centering press 1 and the side press 2 is strictly limited.

In addition, the inner clamping end 132 is not only a simple limit groove, but also is not too tightly matched with other relatively tight groove bodies because the inner clamping end 132 is also responsible for the sliding phenomenon that the side pressing piece 2 automatically slides down after being subjected to gravity after playing the limit function, but also has a certain tight fit, and on the basis that the inner clamping end 132 comprises a free groove 1321 and a limit groove 1322, the limit groove 1322 is positioned above the free groove 1321 and is communicated with the free groove 1321, when the limit structure slides in the limit groove 1322, the limit structure is subjected to a larger and tighter limit effect, and when the limit structure slides in the free groove 1321, the limit structure is free because the limited force applied to one end is obviously reduced, and when the limit structure transits from the limit groove 1322 to the free groove 1321, the side pressing piece 2 can slide easily.

In this embodiment, the above-mentioned limiting structure is a locking member 3 connected between the side sliding block 21 and the mating portion 13, as can be seen from the figure, the locking member 3 is a bolt, the locking member 3 penetrates through the side sliding block 21 and is inserted into the free slot 1321 and/or the limiting slot 1322, that is, the screw of the bolt goes deep into the inner clamping end 132 to perform the effect of limiting guide, and the position of the locking member in which slot of the inner clamping end 132 depends on the mating state of the side pressing member 2 and the middle pressing member 1, if the bottom surface of the side pressing member 2 is flush with the bottom surface of the middle pressing member 1, the locking member 3 is positioned in the limiting slot 1322, and if the side pressing member 2 is in the natural sagging state, the locking member 3 is positioned in the free slot 1321.

In order to avoid other injuries such as scratches caused to other positions of the door panel in the ascending and descending processes of the side pressing block 212 and the cutter body 12, the inner side of the side pressing block 212 and the bottom of the solid end 131 are both provided with an outer sealing piece A, and the outer sealing piece A positioned above the side pressing block 212 and the cutter body 12 form protection.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A bending tool for a four-sided in-turned door panel, comprising:

the middle pressing piece (1), the middle pressing piece (1) comprises a loading part (11) fixedly connected with a power end, an inverted trapezoid cutter body (12) extending from the loading part (11) to a position to be bent, and matching parts (13) connected to two sides of a cutter point of the cutter body (12);

the side pressing piece (2) comprises a side sliding block (21) which is in sliding fit with the cutter body (12), and a fit groove (22) which is formed on one side of the side sliding block (21) close to the cutter body (12) and is in sliding fit with the fit part (13);

the sum of the length of the bottom surface of the side sliding block (21) and the length of the cutter body (12) is equal to the length of the position to be bent.

2. The bending tool for the four-side inner door panel according to claim 1, wherein the loading part (11) comprises a vertical mounting end (111), a horizontal mounting end (112) fixedly connected with the vertical mounting end (111), and V-shaped mounting openings (1111) are formed in two lateral directions of the vertical mounting end (111).

3. The bending tool for the four-sided in-turned door panel according to claim 1, wherein the matching portion (13) comprises a solid end (131) integrally formed with the cutter body (12), an inner clamping end (132) connected to the solid end (131) and facing away from one side of the cutter body (12), and the solid end (131) and the inner clamping end (132) are clamped in the matching groove (22).

4. A bending tool for a four sided inner door panel according to claim 3, wherein the inner clamping end (132) comprises a free slot (1321) and a limiting slot (1322), the limiting slot (1322) being located above the free slot (1321) and communicating with each other.

5. The bending tool for a four-sided in-turned door panel according to claim 4, further comprising a locking element (3) connecting the side slider (21) and the mating part (13), wherein the locking element (3) penetrates the side slider (21) and is inserted into the free slot (1321) and/or the limiting slot (1322).

6. The bending tool for a four-sided in-turn door panel according to claim 5, wherein the side slider (21) includes a side connection block (211) slidably fitted with the fitting portion (13), and a side pressing block (212) connected below the side connection block (211).

7. The bending tool for four-sided in-turned door panels as claimed in claim 6, characterized in that the inner side of said side pressing block (212) and the bottom of said solid end (131) are provided with an outer sealing piece (a).