CN218998416U - High-efficient high-precision bending die convenient to change shape - Google Patents

Abstract

The utility model discloses a high-efficiency high-precision bending die convenient to change, which comprises an upper die holder, a lower die holder, an upper bending die unit arranged on the upper die holder and a lower bending die unit arranged on the lower die holder, wherein the upper bending die unit comprises a first mounting plate fixed on the upper die holder, a first floating plate which is vertically and elastically suspended on the lower side of the first mounting plate through a first limiting rod, a plurality of first oblique insertion sliding blocks which are horizontally and slidably arranged on the first mounting plate, and a first limiting block which limits the descending height of the first floating plate, the first floating plate is provided with a first guide chute matched with the first oblique insertion sliding blocks, the first oblique insertion sliding blocks downwards extend through the first guide chute, a first mounting part is formed at the end part, and at least one upper bending forming block is arranged on the first mounting part. The utility model not only facilitates the replacement of the forming block to realize the replacement, but also can simultaneously bend a plurality of products, thereby greatly improving the bending efficiency.

Description

High-efficient high-precision bending die convenient to change shape

Technical Field

The utility model belongs to the technical field of bending dies, and particularly relates to a high-efficiency high-precision bending die with convenient die change.

Background

The FPC is also called a flexible circuit board, a flexible printed circuit board, a flexible board or an FPC for short, and has the characteristics of high wiring density, light weight and thin thickness. Flexible circuit boards often require bending operations for certain sections thereof (typically the electrical connection areas near the ends) due to assembly connection requirements. In the manufacturing process, the FPC board is generally punched out, and then bent.

In the bending process, the conventional method is to manually bend through a jig, but the efficiency is too low to realize batch production; later, an automatic bending die is also used for realizing automatic bending of the FPC board, such as an FPC flexible bending die disclosed in patent publication No. CN215301049U, wherein a stamping block in an upper die and a lower die in the die are of an integrated structure, if a product is changed, the whole upper die plate and the whole lower die plate need to be replaced, the manufacturing cost is high, the whole die needs to be disassembled, and the replacement is time-consuming and labor-consuming; the FPC board is whole to realize bending through pressing block and spout cooperation, and the upper and lower surface that the FPC board was bent receives the extrusion simultaneously, scratch the product easily, if there is connector or other electronic components on the FPC board, then can't adopt this kind of mode to bend.

In the prior art, patent publication number CN110948840a also discloses an automatic bending device for an FPC circuit board, which adopts a form of a jig to hold the main body part of the FPC, so that the bent part of the FPC is overhanging out of the jig, then moves to a bending station, supports the bottom of the FPC by using a bottom die at the bending station, presses the main body part of the FPC by using a profiling die on the bottom die, realizes a first bending by using the upward movement of the bottom die, and then realizes a second bending by using a needle roller with three-dimensional movement capability to match with the bottom die; however, the device has a disadvantage that only one needle roller can be arranged due to the limited space, so that only one needle roller can be formed during the second bending structure forming, and the forming efficiency is reduced.

Therefore, it is necessary to provide a new efficient high-precision bending die with convenient mold changing to solve the technical problems.

Disclosure of Invention

The utility model mainly aims to provide the efficient high-precision bending die with convenient die change, which is convenient for changing the forming block to realize die change, can simultaneously perform bending operation on a plurality of products and greatly improves the bending efficiency.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides a convenient high-efficient high-accuracy bending die of retooling, its includes upper die base and die holder, sets up go up bending die unit and setting on the upper die base are in lower bending die unit on the die holder, go up bending die unit including fixing first mounting panel on the upper die base, hang through first gag lever post upper and lower elasticity is floating and is established first floating plate, horizontal slip setting are in a plurality of first oblique sliders and restriction on the first mounting panel first stopper of first floating plate decline height, be provided with on the first floating plate with first oblique slider complex first direction spout that inserts, first oblique slider passes first direction spout downwardly extending just is formed with first installation department at the tip, install at least one on the first installation department and bend the shaping piece.

Further, the lower bending die unit comprises a second mounting plate fixed on the lower die holder, a second floating plate arranged on the second mounting plate in an up-down elastic floating mode through a second limiting rod, and a plurality of second oblique inserting sliding blocks arranged on the second mounting plate in a horizontal sliding mode, second guide sliding grooves matched with the second oblique inserting sliding blocks are formed in the second floating plate, the second oblique inserting sliding blocks penetrate through the second guide sliding grooves to extend upwards, second mounting portions are formed in the end portions of the second guide sliding grooves, and at least one lower bending forming block is arranged on each second mounting portion.

Further, an open type sliding rail is arranged at the bottom of the first mounting plate, and the top of the first oblique insertion sliding block is slidably arranged on the open type sliding rail.

Further, a roller rolling on the open slide rail is arranged at the top of the first oblique insertion slide block.

Further, a plurality of strip-shaped grooves are formed in the outer peripheral surface of the first oblique insertion sliding block matched with the first guide sliding groove.

Further, a second limiting block which limits the minimum distance between the first mounting plate and the first floating plate is arranged between the first mounting plate and the first floating plate.

Further, a third limiting block for limiting the distance between the lower bending die unit and the upper bending die unit to be the minimum distance is arranged between the lower bending die unit and the upper bending die unit.

Further, an open sliding rail is arranged on the upper surface of the second mounting plate; and/or the bottom of the second oblique insertion sliding block is provided with a roller which rolls on the open sliding rail; and/or the outer peripheral surface is provided with a friction-reducing strip-shaped groove.

Further, the bending fixture is matched with a jig, the FPC board to be bent is placed on the jig, and the section to be bent of the FPC board is overhanging out of the jig; the bottom of the first floating plate is provided with a first positioning guide rod which is inserted into a corresponding jack of the jig; the bottom of the first floating plate is also provided with a pressing block for pressing the jig.

The utility model further aims to provide a high-efficiency high-precision bending die convenient to change, which comprises an upper die holder, a lower die holder, an upper bending die unit arranged on the upper die holder and a lower bending die unit arranged on the lower die holder, wherein the lower bending die unit comprises a second mounting plate fixed on the lower die holder, a second floating plate arranged on the second mounting plate in an up-down elastic floating manner through a second limiting rod and a plurality of second oblique insertion sliding blocks arranged on the second mounting plate in a horizontal sliding manner, the second floating plate is provided with a second guide sliding groove matched with the second oblique insertion sliding blocks, the second oblique insertion sliding blocks upwards extend through the second guide sliding groove, a second mounting part is formed at the end part of the second oblique insertion sliding blocks, and at least one lower bending forming block is arranged on the second mounting part.

Compared with the prior art, the efficient high-precision bending die convenient to change the shape has the following main beneficial effects: the forming block is convenient to replace to realize the forming, and a plurality of products can be simultaneously bent, so that the bending efficiency is greatly improved. In particular, the method comprises the steps of,

1) The structure of the inclined inserting slide block is arranged on the mounting plate, the guide slide groove is arranged on the floating plate, and meanwhile, the horizontal movement and the lifting movement of the inclined inserting slide block when the upper and lower bending die units bend are realized by utilizing the action that the mounting plate can continuously move up and down relative to the floating plate, so that bending operation is realized; therefore, the upper part of the plurality of products can be synchronously bent by arranging a plurality of oblique insertion sliding blocks, so that the bending efficiency is improved;

2) Similarly, the lower bending die unit and the upper bending die unit are symmetrically arranged, and the lower part of a plurality of products can be synchronously bent at the same time by arranging a plurality of oblique insertion sliding blocks, so that the bending efficiency is improved;

3) The mounting plate is provided with an open type sliding rail structure, and the inclined insertion sliding block is mounted with the mounting plate in a manner that the end part of the inclined insertion sliding block slides in, so that the mounting is convenient; the oblique insertion sliding block is also matched and connected with the floating plate in a guide chute mode, when the floating plate is dismounted, the oblique insertion sliding block can be separated from the guide chute only by moving the floating plate to a certain distance from the mounting plate, and then the floating plate can be horizontally slid out, so that the dismounting is convenient;

4) When the product is replaced, only the bending block arranged at the end part of the oblique insertion sliding block is required to be detached, and a new bending block is arranged, so that the product is convenient to change shape;

5) The bending precision of the product is mainly realized by the machining precision of the forming block and the moving precision of the die guiding forming block; the multiple forming blocks are arranged on the mounting plate with the up-down movement function in a unified mode, so that the dimensional stability of the multiple products during bending is guaranteed, compared with the dimensional modification of the bending knife of a single product in the existing other bending equipment, the bending size of each product is respectively adjusted, the bending requirement of the products is met, the moving position of the forming blocks is only required to be accurately controlled, the machining precision of the forming blocks is controlled, the accurate control of the bending size can be realized, a large amount of time is not required to be spent on debugging, the debugging difficulty is reduced, and the production efficiency is improved.

Drawings

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

FIG. 2 is a schematic diagram of a partial front view structure in an embodiment of the present utility model;

FIG. 3 is a schematic diagram of an upper bending die unit according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of an exploded view of a part of an upper bending die unit according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a first oblique insertion slider according to an embodiment of the present utility model;

fig. 6 is a schematic front view of a lower bending die unit according to an embodiment of the present utility model;

fig. 7 is a schematic perspective view of a lower bending die unit according to an embodiment of the present utility model;

FIG. 8 is a schematic diagram of the structure of the upper bending block and the lower bending block in the embodiment of the utility model;

the figures represent the numbers:

100-efficient high-precision bending die convenient to change shape; 200-jig; 300-FPC board;

1-an upper die holder; 2-a lower die holder;

the device comprises a 3-upper bending die unit, a 31-first mounting plate, a 311-L-shaped supporting plate, a 312-second limiting block, a 32-first limiting rod, a 33-first floating plate, a 331-first guide chute, a 332-first positioning guide rod, a 333-pressing block, a 334-second positioning guide rod, a 34-first oblique insertion slide block, a 341-first mounting part, a 342-rolling wheel, a 343-strip-shaped groove, a 35-first limiting block, a 36-upper bending forming block, a 37-first elastic piece and a 38-third limiting block;

4-lower bending die units, 41-second mounting plates, 42-second limiting rods, 43-second floating plates, 431-second guide sliding grooves, 432-first positioning holes, 433-second positioning holes, 44-second oblique insertion sliding blocks, 441-second mounting parts, 45-lower bending forming blocks and 46-second elastic pieces;

5-first driving piece, 6-second driving piece, 61-cam assembly, 62-driving plate, 621-driving chute, 63-driving motor, 7-bracket, 71-bottom plate, 72-top plate, 73-fixed guide rod.

Detailed Description

Embodiment one:

referring to fig. 1-8, the present embodiment is a high-efficiency and high-precision bending mold 100 with convenient mold change, which is used with a jig 200, an FPC board 300 to be bent is placed on the jig 200, and a section to be bent of the FPC board 300 overhangs outside the jig 200; the bending die 100 comprises an upper die holder 1, a lower die holder 2, an upper bending die unit 3 fixed on the upper die holder 1, a lower bending die unit 4 fixed on the lower die holder 2, a first driving piece 5 for driving the upper die holder 1 to move up and down, and a second driving piece 6 for driving the lower die holder 2 to move up and down.

The embodiment further comprises a bracket 7, wherein the bracket 7 comprises a bottom plate 71, a top plate 72 and four fixed guide rods 73 arranged on the bottom plate 71 and the top plate 72, the first driving piece 5 is fixed on the top plate 72, and the second driving piece 6 is arranged on the bottom plate 71. The upper die holder 1 and the lower die holder 2 are vertically movably arranged on the fixed guide rod 73.

The upper bending die unit 3 comprises a first mounting plate 31 fixed on the upper die holder 1, a first floating plate 33 vertically floating and hanging on the lower side of the first mounting plate 31 through a first limiting rod 32, a plurality of first oblique insertion sliding blocks 34 horizontally sliding and arranged on the first mounting plate 31, and a first limiting block 35 limiting the descending height of the first floating plate 33, a first guide sliding groove 331 matched with the first oblique insertion sliding blocks 34 is arranged on the first floating plate 33, the first oblique insertion sliding blocks 34 penetrate through the first guide sliding groove 331 to extend downwards, a first mounting part 341 is formed at the end part, and at least one upper bending forming block 36 is arranged on the first mounting part 341.

In this embodiment, the first limiting block 5 is fixedly disposed on the top plate 72.

When the upper bending die unit 3 performs bending operation, the first floating plate 33 and the first oblique insertion slide 34 descend along with the first mounting plate 31, and the first floating plate 33 descends to a lower limit position and stops under the limitation of the first limiting block 35; then the first mounting plate 31 carries the first oblique insertion slide block 34 to continuously descend, the upper bending forming block 36 contacts the FPC board 300, and under the matching of the first guide chute 331 and the inclined plane of the first oblique insertion slide block 34, the first oblique insertion slide block 34 is driven to horizontally move, and the bending forming of the specific position on the FPC board 300 is realized by combining the descending movement of the first oblique insertion slide block 34.

In this embodiment, after the product is changed, only the upper bending block 36 needs to be replaced in the upper bending die unit 3, and in order to facilitate the assembly and disassembly operations of the first oblique insertion slider 34, the structure of this embodiment is optimized. Specifically, an open sliding rail is disposed at the bottom of the first mounting plate 31, in this embodiment, an L-shaped support plate 311 is disposed at the bottom of the first mounting plate 31, and the horizontal plane of the L-shaped support plate 311 forms the open sliding rail of a single support. In other embodiments, a pair of L-shaped support plates 311 may be disposed at the bottom of the first mounting plate 31, and the two L-shaped support plates 311 form the double-support open slide rail in a horizontal plane. The open slide rail is of a front-rear through structure so that the top of the first oblique insertion slider 34 can be scratched into the open slide rail from the front end or the rear end.

In order to better enable the first oblique insertion slide block 34 to slide horizontally on the open slide rail, a roller 342 rolling on the open slide rail is arranged at the top of the first oblique insertion slide block 34. The friction force is changed into rolling friction, so that the friction force is reduced, and the smoothness of sliding of the first oblique insertion sliding block 34 is improved.

In order to further reduce the frictional resistance of the horizontal movement of the first oblique insertion slide block 34, a plurality of bar-shaped grooves 343 are provided on the outer circumferential surface of the first oblique insertion slide block 34 matched with the first guide chute 331, so as to reduce the contact area between the first oblique insertion slide block 34 and the first guide chute 331, thereby reducing the frictional resistance.

A first elastic member 37 is provided between the first mounting plate 31 and the first floating plate 33 to downwardly abut against the first floating plate 33.

The bottom of the first mounting plate 31 is further provided with a plurality of second stoppers 312 that limit the minimum distance between the first mounting plate 31 and the first floating plate 33. In other embodiments, the second limiting block 312 may be fixed on the upper surface of the first floating plate 33 to achieve the same effect.

A third stopper 38 is provided between the lower bending die unit 4 and the upper bending die unit 3 to limit the distance between the two to a minimum, and the third stopper 38 may be fixed to the bottom of the first floating plate 33 or may be fixed to the lower bending die unit 4.

The design thought of the lower bending die unit 4 is the same as that of the upper bending die unit 3, and the lower bending die unit comprises a second mounting plate 41 fixed on the lower die holder 2, a second floating plate 43 arranged on the second mounting plate 41 in an up-and-down floating manner through a second limiting rod 42, and a plurality of second oblique insertion sliding blocks 44 arranged on the second mounting plate 41 in a horizontal sliding manner, wherein the second floating plate 43 is provided with a second guide sliding groove 431 matched with the second oblique insertion sliding blocks 44, the second oblique insertion sliding blocks 44 penetrate through the second guide sliding groove 431 to extend upwards, a second mounting part 441 is formed at the end part, and at least one lower bending forming block 45 is mounted on the second mounting part 441.

A fourth stopper (not shown) is provided between the second mounting plate 41 and the second floating plate 43 to restrict the two to a minimum distance.

When the lower bending die unit 4 performs bending operation, the second floating plate 43 and the second oblique insertion slide block 44 rise together with the second mounting plate 41, the second floating plate 43 rises and stops under the limitation of the third limiting block 38; then the second mounting plate 41 carries the second oblique insertion slide block 44 to continuously ascend, the lower bending forming block 45 contacts the FPC board 300, and under the matching of the second guide chute 431 and the inclined plane of the second oblique insertion slide block 44, the second oblique insertion slide block 44 is driven to horizontally move, and the bending forming of the specific position on the FPC board 300 is realized by combining the ascending movement of the second oblique insertion slide block 44.

Similarly, the upper surface of the second mounting plate 41 is also provided with an L-shaped support plate 311 to form the open sliding rail, the bottom of the second oblique insertion sliding block 44 is provided with a roller 342 rolling on the open sliding rail, and the outer peripheral surface is provided with a bar-shaped groove 343 for reducing friction force.

A second elastic member 46 that pushes up the second floating plate 43 is provided between the second mounting plate 41 and the second floating plate 43.

The bottom of the first floating plate 33 is provided with a first positioning guide rod 332 inserted into a corresponding jack of the jig 200 to position the jig 200, and the lower bending die unit 4 is provided with a first positioning hole 432 matched with the first positioning guide rod 332 on the second floating plate 43. In other embodiments, the first positioning guide 332 may also be disposed on the second floating plate 43, and the corresponding first positioning hole 432 is disposed on the first floating plate 33.

The bottom of the first floating plate 33 is further provided with a pressing block 333 that presses the jig 200 to keep it fixed.

In order to ensure the accurate matching of the upper bending die unit 3 and the lower bending die unit 4, the first floating plate 33 is provided with a second positioning guide rod 334, and the second floating plate 43 is provided with a second positioning hole 433 matched with the second positioning guide rod 334. In other embodiments, the second positioning guide 334 may also be disposed on the second floating plate 43, and the corresponding second positioning hole 433 is disposed on the first floating plate 33.

The first driving piece 5 is a motor, and can accurately control the descending height of the upper die holder 1.

The second driving piece 6 comprises a cam assembly 61 fixed at the bottom of the lower die holder 2, a driving plate 62 matched with the cam assembly 61 to drive the cam assembly 61 to move up and down, and a driving motor 63 for driving the driving plate 62 to move horizontally, a driving chute 621 is arranged on the driving plate 62, the cam of the cam assembly 61 stretches into the driving chute 621, and the up-and-down movement of the cam assembly 61 is realized through the horizontal movement of the driving plate 62. In other embodiments, the second driving member 6 may also use a rotation shaft to cooperate with a cam to realize the up-and-down movement of the lower die holder 2.

When bending and forming the FPC board 300, the jig 200 carries the FPC board 300 and moves to the bending station, the upper bending die unit 3 moves downwards at first, the upper bending and forming block 36 presses the first bending position of the FPC board 300, then the lower bending die unit 4 moves upwards, the lower bending and forming block 45 and the upper bending and forming block 36 cooperate to form a first bending structure C, in this embodiment, two upper bending and forming blocks A, B are mounted on the first mounting portion 341, and the upper bending and forming block a is used for pressing the FPC board 300 to cooperate to form the first bending structure C; while the lower bending forming block 45 pushes the FPC board upward, the upper bending forming block B blocks the trend of the FPC board, thereby forming the second bending structure D.

Although the embodiments of the present utility model are described above, the embodiments are only used for facilitating understanding of the present utility model, and are not intended to limit the present utility model. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is to be determined by the appended claims.

Claims (10)

1. The utility model provides a high-efficient high-accuracy bending die of convenient type that changes, its includes upper die base and die holder, sets up go up bending die unit on the upper die base and set up lower bending die unit on the die holder, its characterized in that: the upper bending die unit comprises a first mounting plate fixed on the upper die holder, a first floating plate, a plurality of first oblique inserting sliding blocks and a first limiting block, wherein the first floating plate is arranged on the lower side of the first mounting plate in a horizontal sliding mode through a first limiting rod, the first limiting blocks are arranged on the first mounting plate in a sliding mode, the first limiting blocks are used for limiting the descending height of the first floating plate, first guiding sliding grooves matched with the first oblique inserting sliding blocks are formed in the first floating plate, the first oblique inserting sliding blocks penetrate through the first guiding sliding grooves to extend downwards, first mounting portions are formed in the end portions of the first guiding sliding grooves, and at least one upper bending forming block is arranged on the first mounting portions.

2. The high-efficiency high-precision bending die convenient to change shape according to claim 1, wherein: the lower bending die unit comprises a second mounting plate fixed on the lower die holder, a second floating plate arranged on the second mounting plate in an up-down elastic floating mode through a second limiting rod, and a plurality of second oblique inserting sliding blocks arranged on the second mounting plate in a horizontal sliding mode, wherein second guide sliding grooves matched with the second oblique inserting sliding blocks are formed in the second floating plate, the second oblique inserting sliding blocks penetrate through the second guide sliding grooves to extend upwards, a second mounting portion is formed at the end portion of the second guide sliding grooves, and at least one lower bending forming block is arranged on the second mounting portion.

3. The high-efficiency high-precision bending die convenient to change shape according to claim 1 or 2, which is characterized in that: the bottom of first mounting panel is provided with open slide rail, the top slip of first oblique plug-in slider is provided with on the open slide rail.

4. A high-efficiency high-precision bending die convenient for changing shape according to claim 3, wherein: the top of the first oblique insertion sliding block is provided with a roller which rolls on the open sliding rail.

5. The high-efficiency high-precision bending die convenient to change shape according to claim 1 or 2, which is characterized in that: the first oblique insertion sliding block and the first guide sliding groove are matched, and a plurality of strip-shaped grooves are formed in the peripheral surface of the first oblique insertion sliding block and the first guide sliding groove.

6. The high-efficiency high-precision bending die convenient to change shape according to claim 1 or 2, which is characterized in that: a second limiting block for limiting the minimum distance between the first mounting plate and the first floating plate is arranged between the first mounting plate and the first floating plate.

7. The high-efficiency high-precision bending die convenient to change shape according to claim 1 or 2, which is characterized in that: and a third limiting block for limiting the distance between the lower bending die unit and the upper bending die unit to be the minimum distance between the lower bending die unit and the upper bending die unit.

8. The high-efficiency high-precision bending die convenient to change shape according to claim 2, wherein: an open sliding rail is arranged on the upper surface of the second mounting plate; and/or the bottom of the second oblique insertion sliding block is provided with a roller which rolls on the open sliding rail; and/or the outer peripheral surface is provided with a friction-reducing strip-shaped groove.

9. The high-efficiency high-precision bending die convenient to change shape according to claim 1 or 2, which is characterized in that: the bending fixture is matched with a jig, an FPC board to be bent is placed on the jig, and a section to be bent of the FPC board is overhanging out of the jig; the bottom of the first floating plate is provided with a first positioning guide rod which is inserted into a corresponding jack of the jig; the bottom of the first floating plate is also provided with a pressing block for pressing the jig.

10. The utility model provides a high-efficient high-accuracy bending die of convenient type that changes, its includes upper die base and die holder, sets up go up bending die unit on the upper die base and set up lower bending die unit on the die holder, its characterized in that: the lower bending die unit comprises a second mounting plate fixed on the lower die holder, a second floating plate arranged on the second mounting plate in an up-down elastic floating mode through a second limiting rod, and a plurality of second oblique inserting sliding blocks arranged on the second mounting plate in a horizontal sliding mode, wherein second guide sliding grooves matched with the second oblique inserting sliding blocks are formed in the second floating plate, the second oblique inserting sliding blocks penetrate through the second guide sliding grooves to extend upwards, a second mounting portion is formed at the end portion of the second guide sliding grooves, and at least one lower bending forming block is arranged on the second mounting portion.

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