CN216606929U - Furniture metal fitting mechanism of bending - Google Patents

Abstract

The utility model belongs to the technical field of furniture accessory processing, and particularly relates to a furniture metal accessory bending mechanism which comprises a base, a portal frame, an upper die, a lower die and a guide assembly, wherein the portal frame is arranged on the base; the portal frame is fixedly arranged at the top of the base; the fixed end of the upper die is fixedly arranged on the portal frame; the lower die is fixedly arranged on the base; the lower die is positioned below the upper die, and the movable end of the upper die is matched with the lower die so as to realize the bending of the product; the fixed end of the guide component is fixedly arranged on the portal frame, and the movable end of the guide component is fixedly connected with the movable end of the upper die. So, under the effect of direction subassembly, improved the stability and the motion precision of the expansion end of last mould greatly to ensured the quality of bending, and then avoided the material extravagant.

Description

Furniture metal fitting mechanism of bending

Technical Field

The utility model belongs to the technical field of furniture accessory processing, and particularly relates to a furniture metal accessory bending mechanism.

Background

The bending mechanism is used for bending the thin plate, and can be said to be an important device for bending and forming a workpiece, and the bending mechanism is used for pressing the plate into parts with various shapes according to process requirements. Various furniture parts and accessories are required in the furniture production process, and a bending mechanism is required when some connecting metal parts need to be bent to adapt to the corner connecting action of the furniture. However, the upper die of the conventional bending mechanism is low in stability during movement and easy to shake, so that the quality of a bent product is poor, and material waste is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bending mechanism for a furniture metal fitting, and aims to solve the technical problem that an upper die of the bending mechanism in the prior art is unstable when moving, so that the product yield is reduced.

In order to achieve the purpose, the bending mechanism for the furniture metal fittings provided by the embodiment of the utility model comprises a base, a portal frame, an upper die, a lower die and a guide assembly, wherein the portal frame is provided with a first opening and a second opening; the portal frame is fixedly arranged at the top of the base; the fixed end of the upper die is fixedly arranged on the portal frame; the lower die is fixedly arranged on the base; the lower die is positioned below the upper die, and the movable end of the upper die is matched with the lower die so as to realize the bending of the product; the fixed end of the guide assembly is fixedly arranged on the portal frame, and the movable end of the guide assembly is fixedly connected with the movable end of the upper die.

Optionally, two sets of the guide assemblies are provided; and the two groups of guide assemblies are respectively positioned at the left side and the right side of the upper die.

Optionally, the guide assembly comprises a slide rail and a slider; the sliding rail is fixedly arranged on the portal frame; the sliding block is connected with the sliding rail in a sliding manner; the movable end of the upper die is fixedly connected with the sliding block.

Optionally, at least two positioning pins are fixedly embedded on the surface of the portal frame, which is in contact with the fixed end of the guide assembly; the fixed end of the guide assembly is in contact with the portal frame, positioning holes for the positioning pins to penetrate are formed in the surface of the fixed end of the guide assembly, and the number of the positioning holes is equal to that of the positioning pins.

Optionally, a buffer assembly is further included; the upper end of the buffer assembly is fixedly connected with the portal frame, and the lower end of the buffer assembly is fixedly connected with the movable end of the upper die.

Optionally, the buffer assembly comprises an upper suspension ring, a lower suspension ring and an extension spring; the upper hoisting ring is detachably connected with the portal frame; the lower lifting ring is detachably connected with the movable end of the upper die; the upper end and the lower end of the extension spring are respectively hung on the upper hanging ring and the lower hanging ring.

Optionally, the upper die comprises a driving assembly and a jacking assembly; the driving assembly is arranged on the portal frame; the driving assembly is in linkage connection with the jacking assembly so as to enable the jacking assembly to move; the jacking assembly is matched with the lower die to realize the bending of the product.

Optionally, the jacking assembly comprises a connecting block, a fixing block, a jacking head and an installation block; the driving assembly is in linkage connection with the connecting block; the connecting block the pressure head with the fixed block all with installation piece fixed connection, the fixed block still with the expansion end fixed connection of direction subassembly.

Optionally, the front end and the rear end of the pressure head protrude out of the front end and the rear end of the mounting block; the pressure head is characterized in that a guide groove is formed in the top surface of the pressure head, the guide groove penetrates through the left end face and the right end face of the pressure head, and the guide groove is matched with the mounting block in a sliding mode.

Optionally, a positioning assembly is further included; the positioning assembly is fixedly arranged on the lower die and used for positioning a product.

One or more technical solutions in the bending mechanism for a furniture metal fitting provided by the embodiment of the present invention at least have one of the following technical effects: the upper die is provided with a movable end which moves along the vertical direction, and similarly, the movable end of the guide assembly also moves along the vertical direction. During the use, will wait to bend the product and place on the lower mould, afterwards, the expansion end of going up the mould moves down, is close to the lower mould gradually, and at this moment, the expansion end of direction subassembly moves along the extending direction of the stiff end of direction subassembly, vertical direction promptly under the drive of the expansion end of last mould. And finally, closing the movable end of the upper die and the lower die, so that the product is bent. After the bending operation is completed, the movable end of the upper die drives the movable end of the guide assembly to vertically move upwards, and the lower die is gradually kept away from the upper die so as to reset. So, under the effect of direction subassembly, improved the stability and the motion precision of the expansion end of last mould greatly to ensured the quality of bending, and then avoided the material extravagant.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a furniture metal fitting bending mechanism according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a buffer assembly according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of an upper die according to an embodiment of the present invention.

Fig. 4 is an assembly diagram of a lower mold and a positioning assembly according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10-guide assembly 20-upper die 30-lower die

40-portal frame 50-base 60-buffer component

70-positioning component 11-slide rail 12-slide block

21-driving component 22-top pressing component 221-connecting block

222-fixed block 223-pressure head 224-mounting block

31-groove 41-horizontal support 42-vertical support

61-upper hanging ring 62-lower hanging ring 63-extension spring

71-connecting plate 72-positioning plate.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the utility model.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying 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 thus, 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 embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In one embodiment of the present invention, as shown in fig. 1, there is provided a furniture metal fitting bending mechanism, including a base 50, a gantry 40, an upper mold 20, a lower mold 30, and a guide assembly 10; the gantry 40 is fixedly arranged at the top of the base 50; the fixed end of the upper die 20 is fixedly arranged on the portal frame 40; the lower die 30 is fixedly arranged on the base 50; the lower die 30 is positioned below the upper die 20, and the movable end of the upper die 20 is matched with the lower die 30 to realize the bending of the product; the fixed end of the guide assembly 10 is fixedly arranged on the portal frame 40, and the movable end of the guide assembly 10 is fixedly connected with the movable end of the upper die 20.

Specifically, the upper mold 20 has a movable end that moves in a vertical direction, and likewise, the movable end of the guide assembly 10 moves in a vertical direction. During the use, will wait to bend the product and place on lower mould 30, afterwards, go up the expansion end downstream of mould 20, be close to lower mould 30 gradually, at this moment, the expansion end of guide assembly 10 moves along the extending direction of guide assembly 10's stiff end, vertical direction promptly under the drive of the expansion end of last mould 20. Finally, the movable end of the upper die 20 is clamped with the lower die 30, so that the product is bent. After the bending operation is completed, the movable end of the upper die 20 drives the movable end of the guide assembly 10 to move vertically upward, and gradually moves away from the lower die 30 for resetting. Thus, under the action of the guide assembly 10, the stability and the motion precision of the movable end of the upper die 20 are greatly improved, so that the bending quality is ensured, and the material waste is avoided.

In another embodiment of the present invention, as shown in fig. 1, the guide assembly 10 is provided in two sets; the two groups of guide assemblies 10 are respectively positioned at the left side and the right side of the upper die 20. Specifically, the fixed ends of the two sets of guiding assemblies 10 are both fixedly connected with the portal frame 40, and the movable ends of the two sets of guiding assemblies 10 are both fixedly connected with the movable end of the upper die 20. Two sets of guide assemblies 10 are arranged, so that the stress of the upper die 20 is balanced, and the stability is further improved.

In another embodiment of the present invention, as shown in fig. 1, the guide assembly 10 includes a slide rail 11 and a slider 12; the slide rail 11 is fixedly arranged on the portal frame 40; the sliding block 12 is connected with the sliding rail 11 in a sliding manner; the movable end of the upper die 20 is fixedly connected with the sliding block 12. Specifically, in the present embodiment, the guiding assembly 10 is a linear guide module, which includes a slide rail 11 and a sliding block 12, wherein the slide rail 11 is vertically arranged on the gantry 40. When the bending die is used, the movable end of the upper die 20 drives the sliding block 12 to move downwards along the extending direction of the sliding rail 11, namely the vertical direction, and the sliding block and the lower die 30 are matched with each other, so that a product is bent.

In another embodiment of the present invention, at least two positioning pins are fixedly embedded on the surface of the gantry 40 contacting with the fixed end of the guide assembly 10; the fixed end of the guide component 10 is provided with positioning holes for the positioning pins to penetrate through on the surface contacted with the portal frame 40, and the number of the positioning holes is equal to that of the positioning pins.

Specifically, in this embodiment, two first hole sets are disposed on the gantry 40; the two first hole sets correspond to the two guide assemblies 10, respectively. Two groups of first hole groups are respectively arranged on the surface of the portal frame 40 contacted with the two groups of slide rails 11, each group of first hole groups comprises two pin holes, and each pin hole is internally provided with a positioning pin. The two pin holes of each first hole group are arranged in the vertical direction to ensure that the slide rail 11 is arranged in the vertical direction. Correspondingly, two positioning holes are formed in the surface of each sliding rail 11, which is in contact with the portal frame 40. And the top surface of each positioning pin is provided with a round corner or a chamfer so that the positioning pin can penetrate through the positioning hole more easily. Thus, the mounting precision of the slide rail 11 is greatly improved, and the bending quality is improved.

In another embodiment of the present invention, as shown in FIGS. 1-2, a cushion assembly 60 is further included; the upper end of the buffer component 60 is fixedly connected with the portal frame 40, and the lower end of the buffer component 60 is fixedly connected with the movable end of the upper die 20.

Specifically, the movable end of the upper mold 20 moves vertically downward, thereby moving the lower end of the buffer assembly 60 downward, and the movable end of the upper mold 20 is slower as it gets closer to the lower mold 30 under the action of the buffer assembly 60. Thus, by appropriately slowing down the speed of the movable end of the upper die 20, noise is reduced and vibration is reduced. In addition, the impact force of the movable end of the upper die 20 can be reduced, thereby preventing the bent product from being damaged.

In another embodiment of the present invention, as shown in fig. 1 to 2, the damping assembly 60 includes an upper suspension ring 61, a lower suspension ring 62 and an extension spring 63; the upper hoisting ring 61 is detachably connected with the portal frame 40; the lower lifting ring 62 is detachably connected with the movable end of the upper die 20; the upper end and the lower end of the extension spring 63 are respectively hung on the upper hanging ring 61 and the lower hanging ring 62.

Specifically, the upper ring 61, the lower ring 62 and the extension spring 63 are conventional and common in the market, and therefore are not described herein again. In this embodiment, the buffer assemblies 60 are provided in two sets, and are respectively located at the left and right sides of the fixed end of the upper mold 20. Two first threaded holes are formed in the portal frame 40, and the two upper lifting rings 61 are in threaded connection with the two first threaded holes respectively. Two second threaded holes are formed in the movable end of the upper die 20, and the two lower lifting rings 62 are in threaded connection with the two second threaded holes respectively. The extension spring 63 is located between the upper suspension ring 61 and the lower suspension ring 62, and the upper end and the lower end of the extension spring 63 are respectively hung on the upper suspension ring 61 and the lower suspension ring 62. When the device is used, the movable end of the upper die 20 moves downwards, so that the two lower lifting rings 62 are driven to move downwards, at the moment, the two extension springs 63 are extended, and part of kinetic energy is converted into elastic potential energy, so that the purposes of buffering and decelerating are achieved. By adopting the structure, the assembly difficulty is favorably reduced, damaged parts can be replaced at any time, and the practicability is greatly improved.

In another embodiment of the present invention, as shown in fig. 1 and 3, the upper mold 20 includes a driving assembly 21 and a pressing assembly 22; the driving assembly 21 is arranged on the portal frame 40; the driving component 21 is linked with the jacking component 22 so as to move the jacking component 22; the pressing component 22 is matched with the lower die 30 to realize the bending of the product.

Specifically, in the present embodiment, the drive assembly 21 employs a hydraulic lever. The fixed end of the hydraulic rod is arranged on the portal frame 40, the telescopic end of the hydraulic rod is fixedly connected to the top of the jacking assembly 22, and the jacking assembly 22 and the lower die 30 are matched and matched. When the bending die is used, the telescopic end of the hydraulic rod drives the jacking assembly 22 to move downwards, so that the jacking assembly 22 gradually approaches to the lower die 30 and is finally matched with the lower die 30, and the purpose of bending a product is achieved.

In another embodiment of the present invention, as shown in fig. 3, the pressing assembly 22 includes a connecting block 221, a fixing block 222, a pressing head 223, and a mounting block 224; the driving assembly 21 is in linkage connection with the connecting block 221; the connecting block 221, the pressing head 223 and the fixing block 222 are all fixedly connected with the mounting block 224, and the fixing block 222 is also fixedly connected with the movable end of the guide assembly 10.

Specifically, in the present embodiment, two sets of fixing blocks 222 are provided, the two sets of fixing blocks 222 are respectively screwed to the left and right ends of the mounting block 224, wherein two second threaded holes are respectively opened at the tops of the two sets of fixing blocks 222, that is, the two lower hanging rings 62 are respectively screwed to the two sets of fixing blocks 222. The two groups of fixed blocks 222 are respectively in threaded connection with the two sliding blocks 12. Connecting block 221 is in threaded connection with the top of mounting block 224, the telescopic end of the hydraulic rod is in threaded connection with connecting block 221, and pressure head 223 is in threaded connection with the bottom of mounting block 224. During the use, the flexible end drive connecting block 221 of hydraulic stem to drive installation piece 224, pressure head 223, fixed block 222 and slider 12 along the extending direction of slide rail 11, vertical direction is the downstream, and finally with lower mould 30 compound die, realize bending to the product.

Further, both front and rear ends of the pressing head 223 protrude from both front and rear ends of the mounting block 224; the top surface of the pressure head 223 is provided with a guide groove, the guide groove penetrates through the left end surface and the right end surface of the pressure head 223, and the guide groove is in sliding fit with the mounting block 224. When assembling, the pressing head 223 is inserted into the bottom of the mounting block 224 through the guide groove, and then the pressing head 223 is moved so that the pressing head 223 reaches a proper position and is fixed to the mounting block 224 by a screw coupling. Through setting up the guide way, improved the installation accuracy of pressure head 223 to bending quality has been improved.

In another embodiment of the present invention, as shown in FIG. 4, a positioning assembly 70 is further included; the positioning assembly 70 is fixedly arranged on the lower die 30 and used for positioning a product.

Specifically, in the present embodiment, the cross section of the bottom end of the pressing head 223 is V-shaped, and accordingly, the lower mold 30 is provided with a groove 31 having a V-shaped cross section to be adapted to the pressing head 223, so as to realize mold assembly. The positioning assembly 70 includes two positioning blocks detachably connected to the top of the lower mold 30 and respectively located at the front and rear ends of the groove 31. Two locating pieces all include connecting plate 71 and locating plate 72, have all seted up two waist type holes on two connecting plates 71, correspondingly, have seted up two sets of second punch combination on the top surface of lower mould 30, wherein, two sets of second punch combination correspond two connecting plates 71 respectively, and each second punch combination all includes two third screw holes. Two positioning plates 72 are respectively fixed on the surfaces of the two connecting plates 71 close to the grooves 31, and the two positioning plates 72 are used for positioning products. Through setting up waist type hole for the distance between two sets of locating component 70 is adjustable, thereby adapts to the product of different specifications, and then has improved flexibility and practicality. In addition, through setting up locating component 70, avoid the manual work to grasp the product to when reducing the potential safety hazard, improve the quality of bending.

In another embodiment of the present invention, as shown in fig. 1, a gantry 40 includes a horizontal support 41 and two sets of vertical supports 42. The two sets of vertical supporting members 42 are vertically detachably connected to the top of the base 50, the horizontal supporting member 41 is horizontally disposed between the two sets of vertical supporting members 42, and the left and right ends thereof are detachably connected to the two sets of vertical supporting members 42, respectively. Two slide rails 11 are respectively installed on the surface of two sets of vertical supporting members 42 close to the lower mold 30, two first threaded holes are respectively opened on the bottom of the horizontal supporting member 41 and are respectively located at the left end and the right end of the horizontal supporting member 41, that is, two upper hanging rings 61 are both screwed on the bottom of the horizontal supporting member 41. The fixed end of the hydraulic rod is mounted at the bottom of the horizontal support 41. Therefore, the portal frame 40 is divided into the horizontal supporting piece 41 and the two groups of vertical supporting pieces 42, damaged parts can be replaced at any time, and the practicability is greatly improved. In addition, the arrangement is favorable for saving materials and shortening the processing time.

Further, the front and rear surfaces of the two sets of vertical supporting members 42 are both connected with reinforcing members through threads, and each reinforcing member is fixedly arranged at the top of the base 50. So set up to improve portal frame 40's bulk strength, thereby improve the stability when pressure head 223 moves and pressure head 223 and lower mould 30 compound die, and then improved the quality of bending.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a furniture metal accessories mechanism of bending which characterized in that: comprises that

A base;

a gantry; the portal frame is fixedly arranged at the top of the base;

an upper die; the fixed end of the upper die is fixedly arranged on the portal frame;

a lower die; the lower die is fixedly arranged on the base; the lower die is positioned below the upper die, and the movable end of the upper die is matched with the lower die so as to realize the bending of the product;

and a guide assembly; the fixed end of the guide assembly is fixedly arranged on the portal frame, and the movable end of the guide assembly is fixedly connected with the movable end of the upper die.

2. The furniture metal fitting bending mechanism of claim 1, wherein: two groups of guide assemblies are arranged; and the two groups of guide assemblies are respectively positioned at the left side and the right side of the upper die.

3. The furniture metal fitting bending mechanism of claim 1, wherein: the guide assembly comprises a slide rail and a slide block; the sliding rail is fixedly arranged on the portal frame; the sliding block is connected with the sliding rail in a sliding manner; the movable end of the upper die is fixedly connected with the sliding block.

4. The furniture metal fitting bending mechanism of claim 1, wherein: at least two positioning pins are fixedly embedded on the surface of the portal frame, which is in contact with the fixed end of the guide assembly; the fixed end of the guide assembly is in contact with the portal frame, positioning holes for the positioning pins to penetrate are formed in the surface of the fixed end of the guide assembly, and the number of the positioning holes is equal to that of the positioning pins.

5. The furniture metal fitting bending mechanism of claim 1, wherein: the buffer component is also included; the upper end of the buffer assembly is fixedly connected with the portal frame, and the lower end of the buffer assembly is fixedly connected with the movable end of the upper die.

6. The furniture metal fitting bending mechanism of claim 5, wherein: the buffer assembly comprises an upper lifting ring, a lower lifting ring and an extension spring; the upper hoisting ring is detachably connected with the portal frame; the lower lifting ring is detachably connected with the movable end of the upper die; the upper end and the lower end of the extension spring are respectively hung on the upper hanging ring and the lower hanging ring.

7. The furniture metal fitting bending mechanism of claim 1, wherein: the upper die comprises a driving assembly and a jacking assembly; the driving assembly is arranged on the portal frame; the driving assembly is in linkage connection with the jacking assembly so as to enable the jacking assembly to move; the jacking assembly is matched with the lower die to realize the bending of the product.

8. The furniture metal fitting bending mechanism of claim 7, wherein: the jacking assembly comprises a connecting block, a fixing block, a pressure head and an installation block; the driving assembly is in linkage connection with the connecting block; the connecting block the pressure head with the fixed block all with installation piece fixed connection, the fixed block still with the expansion end fixed connection of direction subassembly.

9. The furniture metal fitting bending mechanism of claim 8, wherein: the front end and the rear end of the pressure head are protruded out of the front end and the rear end of the mounting block; the pressure head is characterized in that a guide groove is formed in the top surface of the pressure head, the guide groove penetrates through the left end face and the right end face of the pressure head, and the guide groove is matched with the mounting block in a sliding mode.

10. The furniture metal fitting bending mechanism of claim 1, wherein: the device also comprises a positioning component; the positioning assembly is fixedly arranged on the lower die and used for positioning a product.

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