CN216175866U

CN216175866U - Small-size high accuracy bender

Info

Publication number: CN216175866U
Application number: CN202122376105.5U
Authority: CN
Inventors: 钟小安
Original assignee: Xiamen Hongkai Electronic Technology Co ltd
Current assignee: Xiamen Hongkai Electronic Technology Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-04-05
Anticipated expiration: 2031-09-29

Abstract

The utility model relates to the bending field, in particular to a small-size high-precision bending die which comprises an upper die and a lower die which are arranged at intervals, wherein a bending groove is formed in the lower die, a bending block is fixed on one inner side surface of the bending groove, a step bending part is fixed on one side surface of the bending block, a plurality of limiting blocks which are sequentially arranged at intervals are fixed in the bending groove, the limiting blocks are positioned on one side of the step bending part, a limiting region is formed between adjacent limiting blocks, the bending region corresponds to the bending groove, the bending arm corresponds to the step bending part and extends to the upper side of the limiting region, a punching block corresponding to the bending groove is fixed on the upper die, the punching block and the bending groove are mutually matched to bend the bending region, the bending arm enters the limiting region in the die assembling process of the upper die and the lower die, the limiting blocks limit the bending arm, and the phenomenon that the bending arm is deviated due to uneven stress is avoided, the finished product qualification rate of the piece to be bent is ensured.

Description

Small-size high accuracy bender

Technical Field

The utility model relates to the field of bending, in particular to a small-size high-precision bending die.

Background

At present, in the existing bending die, to the piece of waiting to bend of small-size, the piece of waiting to bend simultaneously has the bending arm of relative setting, because the arm size of bending is less, the thickness of bending arm is thinner, and at the in-process that effort was applyed to punching press head and the arm of bending, the arm of bending takes place the uneven condition of atress easily, causes the skew predetermined direction of the direction of bending arm, makes the finished product qualification rate of waiting to bend decline.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a small-size high-precision bending die which can solve the technical problems that the qualification rate of the finished product of the conventional bending die is low due to the small size of a bending arm and the small thickness of the bending arm.

In order to solve the technical problems, the utility model provides the following technical scheme: a small-size high-precision bending die is used for bending a piece to be bent, the piece to be bent comprises at least one bending area, the bending area comprises two bending arms which are oppositely arranged at intervals, it is characterized by comprising an upper die and a lower die which are arranged at intervals, wherein the lower die is provided with a bending groove, a bending block is fixed on one inner side surface of the bending groove, a step bending part is fixed on one side surface of the bending block, a plurality of limiting blocks which are sequentially arranged at intervals are fixed in the bending groove, the limiting blocks are positioned at one side of the bending part of the step, a limiting area is arranged between the adjacent limiting blocks, the bending area corresponds to the bending groove, the bending arm corresponds to the bending part of the step and extends to the upper part of the limit area, and the upper die is fixedly provided with a stamping block corresponding to the bending groove in position, and the stamping block and the bending groove are matched with each other to bend the bending area.

Furthermore, a plurality of outwards-protruding stamping heads are fixed at the bottom end of the stamping block and correspond to the bending areas one to one.

Furthermore, the bottom surface of the stamping head is a stamping surface, the stamping surface is arranged in an inclined mode, and the stamping surface inclines downwards to the other side from one side close to the step bending portion.

Furthermore, the step bending part comprises a first step surface and a second step surface, the extension plane of the first step surface is located above the extension plane of the second step surface, the second step surface is arranged in an inclined mode, and the inclination angle of the second step surface is the same as that of the stamping surface.

Furthermore, a fixed block is fixed in the bending groove, a plurality of limiting blocks are sequentially fixed on the fixed block, and two bending arms in the same bending area extend to the position above one limiting area.

Furthermore, the width of the limiting region is equal to that of the bending region, and after the stamping block bends and forms the bending region, the two bending arms are respectively abutted against opposite side faces of the adjacent limiting blocks.

Furthermore, the height of the top surface of the limiting block is equal to the height of the first step surface.

Furthermore, the height of the top surface of the limiting block is smaller than that of the first step surface, and the height of the top surface of the limiting block is larger than that of the second step surface.

Further, between the adjacent stopper, the top of relative side is circular arc transition portion, the top surface of circular arc transition portion is the circular arc curved surface.

Furthermore, the step bending part is positioned at the top of one side face of the bending block.

The utility model has the beneficial effects that:

in this scheme, one side of step portion of bending is fixed with a plurality of stoppers that set up at intervals in proper order, be spacing region between the adjacent stopper, the arm of bending is located spacing regional top, at last mould and lower mould compound die in-process, the punching press piece will bend the arm punching press to the inslot of bending, the arm of bending enters into spacing region simultaneously, stopper fifty percent discount curved arm carries on spacingly, avoid bending the arm because the atress uneven phenomenon that leads to taking place the skew, the direction of bending of having guaranteed the arm of bending is bent towards the predetermined direction, the effectual finished product qualification rate of waiting to bend that has improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a small-size high-precision bending die according to the present invention;

FIG. 2 is an enlarged schematic view of a part A of the small-size high-precision bending die of the utility model;

FIG. 3 is a partial top view of an unbent state of a member to be bent according to the present invention;

FIG. 4 is a schematic diagram of a partial cross-sectional structure of a to-be-bent member in a bent state according to the present invention;

FIG. 5 is a schematic view of the combination of a punch block and a fixed block according to the present invention.

Description of the main elements

1. An upper die; 101. stamping the blocks; 1011. punching a head; 1012. stamping a surface;

2. a lower die; 201. bending the groove; 202. a fixed block; 203. a limiting block; 2031. an inclined curved surface; 2032. the top surface of the limiting block; 204. a limiting area; 205. bending the block; 2051. a step bending part; 2052. a first step surface; 2053. a second step surface;

3. a piece to be bent; 301. a bending region; 302. and bending the arm.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, 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, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1-5, the utility model provides a small-size high-precision bending die, which is used for bending a piece 3 to be bent, wherein the piece 3 to be bent comprises at least one bending area 301, the bending area 301 comprises two bending arms 302 arranged at intervals, the small-size high-precision bending die comprises an upper die 1 and a lower die 2 arranged at intervals, a bending groove 201 is formed in the lower die 2, a bending block 205 is fixed on one inner side surface of the bending groove 201, a step bending portion 2051 is fixed on one side surface of the bending block 205, and the step bending portion 2051 is located at the top of one side surface of the bending block 205. A plurality of limiting blocks 203 which are sequentially arranged at intervals are fixed in the bending groove 201, the limiting blocks 203 are located on one side of the step bending portion 2051, a limiting area 204 is arranged between every two adjacent limiting blocks 203, the bending area 301 corresponds to the bending groove 201 in position, and the bending arm 302 corresponds to the step bending portion 2051 in position and extends to the position above the limiting area 204. A fixed block 202 is fixed in the bending groove 201, and a plurality of limit blocks 203 are sequentially fixed on the fixed block 202, in this embodiment, two bending arms 302 of the same bending region 301 extend to the upper side of one limit region 204. The two bending arms 302 which are oppositely arranged are independent from each other, the bending arms 302 are easy to be stressed unevenly in the bending process, the forming direction of the bending arms 302 deviates from the preset direction, the precision of a piece 3 to be bent is influenced, the qualification rate of a finished product is reduced, the two bending arms 302 are arranged above a limiting area 204, in the bending process, the bending arms 302 move downwards to the position between the adjacent limiting blocks 203, the limiting blocks 203 play a limiting role in folding the bending arms 302, the forming direction of the bending arms 302 is effectively prevented from deviating from the preset direction, and the qualification rate of the finished product is ensured. The upper die 1 is fixed with a stamping block 101 corresponding to the position of the bending groove 201, and the stamping block 101 and the bending groove 201 are matched with each other to bend the bending area 301.

Referring to fig. 2 and 5, a plurality of outwardly protruding stamping heads 1011 are fixed to the bottom end of the stamping block 101, and the stamping heads 1011 correspond to the bending regions 301 one to one. The bottom surface of the punch 1011 is a punch surface 1012, the punch surface 1012 is disposed obliquely, and the punch surface 1012 is inclined downward from one side near the step bending portion 2051 to the other side.

Referring to fig. 2 and 5, the step bending portion 2051 includes a first step surface 2052 and a second step surface 2053, the height of the first step surface 2052 is equal to the height of the top surface of the lower die 2, the extension plane of the first step surface 2052 is located above the extension plane of the second step surface 2053, the second step surface 2053 is disposed in an inclined manner, and the inclination angle of the second step surface 2053 is the same as the inclination angle of the stamping surface 1012. The punching press face 1012 and the slope of second step face 2053 set up, at the in-process of bending, the angle of bending of punching press piece 101 to bending area 301 is greater than the fashioned angle of piece 3 of waiting to bend, and the piece 3 of waiting to bend can take place the resilience of certain angle owing to the reason of material after the shaping of bending, increases the resilience angle to the angle of bending in the in-process of bending in the angle of bending, guarantees to wait to bend 3 and satisfy the demands through the angle of bending after the shaping of bending.

Referring to fig. 2, the width of the limiting region 204 is equal to the width of the bending region 301, and after the stamping block 101 bends and forms the bending region 301, the two bending arms 302 respectively abut against the opposite side surfaces of the adjacent limiting blocks 203. In this embodiment, the height of the top surface of the stopper 203 is equal to the height of the first step surface 2052. Treat that the piece 3 of bending carries out the shaping of bending of punching press in succession in small-size high accuracy bender, the top surface height of stopper 203 is the same with the height of first step face 2052, avoids stopper 203 to treat that the motion route of the piece 3 of bending produces and interferes, treats simultaneously that the piece 3 of bending can enter into between the adjacent stopper 203 with the shortest route, furthest's assurance arm 302 of bending can not take place the skew, has guaranteed to treat the 3 qualification rate of bending. The height of the top surface of the stopper 203 may also be less than the height of the first step surface 2052, while the height of the top surface of the stopper 203 is greater than the height of the second step surface 2053. Between adjacent limiting blocks 203, the top of the opposite side surface is an arc transition part, and the top surface of the arc transition part is an arc curved surface. Before the upper die 1 and the lower die 2 are assembled, the bending arm 302 is located above the limiting blocks 203, the contact between the piece 3 to be bent and the limiting blocks 203 is less, the arc transition surfaces ensure that the upper die 1 and the lower die 2 are assembled, the bending arm 302 can smoothly enter between the adjacent limiting blocks 203, the deviation before the bending arm 302 enters between the adjacent limiting blocks 203 is avoided, the bending area 301 is deformed, and the qualification rate of the piece 3 to be bent is further ensured.

In use, a to-be-bent piece 3 is placed between the upper die 1 and the lower die 2, the bending area 301 corresponds to the bending groove 201, the bending arm 302 corresponds to the step bending part 2051 and extends to the position above the limiting area 204, and after the positions are fixed, the upper die 1 and the lower die 2 begin to be matched; in the die assembly process of the upper die 1 and the lower die 2, the stamping block 101 is abutted to the bending arm 302, the bending arm 302 enters the bending groove 201, the bending arm 302 sends the bending arm 302 to the position between the adjacent limiting blocks 203, the limiting blocks 203 ensure that the bending arm 302 does not deviate, and the stamping block 101 is matched with the step bending part 2051 of the bending groove 201 for bending and forming.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. 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.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A small-size high-precision bending die is used for bending a piece to be bent, the piece to be bent comprises at least one bending area, the bending area comprises two bending arms which are oppositely arranged at intervals, it is characterized by comprising an upper die and a lower die which are arranged at intervals, wherein the lower die is provided with a bending groove, a bending block is fixed on one inner side surface of the bending groove, a step bending part is fixed on one side surface of the bending block, a plurality of limiting blocks which are sequentially arranged at intervals are fixed in the bending groove, the limiting blocks are positioned at one side of the bending part of the step, a limiting area is arranged between the adjacent limiting blocks, the bending area corresponds to the bending groove, the bending arm corresponds to the bending part of the step and extends to the upper part of the limit area, and the upper die is fixedly provided with a stamping block corresponding to the bending groove in position, and the stamping block and the bending groove are matched with each other to bend the bending area.

2. The small-size high-precision bender according to claim 1, wherein: the bottom end of the stamping block is fixedly provided with a plurality of stamping heads protruding outwards, and the stamping heads correspond to the bending areas one to one.

3. The small-size high-precision bender according to claim 2, wherein: the bottom surface of the stamping head is a stamping surface, the stamping surface is arranged in an inclined mode, and the stamping surface inclines downwards to the other side from one side close to the step bending portion.

4. The small-size high-precision bender according to claim 3, wherein: the step bending part comprises a first step surface and a second step surface, the extension plane of the first step surface is located above the extension plane of the second step surface, the second step surface is arranged in an inclined mode, and the inclination angle of the second step surface is the same as that of the stamping surface.

5. The small-size high-precision bender according to claim 1, wherein: the bending groove is internally fixed with a fixed block, a plurality of limiting blocks are sequentially fixed on the fixed block, and two bending arms in the same bending area extend to the position above one limiting area.

6. The small-size high-precision bender according to claim 5, wherein: the width of the limiting region is equal to that of the bending region, and after the stamping block bends and forms the bending region, the two bending arms are respectively abutted against opposite side faces of the adjacent limiting blocks.

7. The small-size high-precision bender according to claim 4, wherein: the height of the top surface of the limiting block is equal to that of the first step surface.

8. The small-size high-precision bender according to claim 4, wherein: the height of the top surface of the limiting block is smaller than that of the first step surface, and the height of the top surface of the limiting block is larger than that of the second step surface.

9. The small-size high-precision bender according to claim 1, wherein: between the adjacent stopper, the top of opposite side is circular arc transition portion, the top surface of circular arc transition portion is the circular arc curved surface.

10. The small-size high-precision bender according to claim 1, wherein: the step bending part is positioned at the top of one side face of the bending block.