CN214768368U - Negative angle bending one-step forming structure of hardware stamping part - Google Patents

Abstract

The utility model belongs to the field of stamping dies, in particular to a negative angle bending one-step forming structure of a hardware stamping part, which comprises a die frame, a lower die component, a die handle and a bending component; the lower die assembly is arranged on the inner side wall of the bottom end of the die frame; the bottom parts of the pair of die handles are fixedly connected with an upper clamping plate; the top of the upper clamping plate is provided with a T-shaped groove; the bending assembly is arranged on the upper clamping plate; the bending assembly comprises an upper base plate, a T-shaped block and a bending mechanism; the T-shaped block is connected in the T-shaped groove in a sliding manner; the upper backing plate is fixedly connected to the top of the T-shaped block; the bending mechanism is arranged at the bottom of the upper base plate; through the matching work of the punch insert and the lower die insert, the punch insert performs negative angle bending work of one-step forming on the stamping part, the stamping part is prevented from being bent for many times, and the working efficiency is improved.

Description

Negative angle bending one-step forming structure of hardware stamping part

Technical Field

The utility model relates to a stamping die field specifically is a five metals stamping workpiece negative angle one step of forming structure of bending.

Background

At present, in an industrial age, a plurality of hardware products are provided, people have higher requirements on the quality of the hardware products, a plurality of products are manufactured by continuous dies, the efficiency is high, and the quality is guaranteed.

In the prior art, the negative angle bending can be formed by several steps, so that the final shape of a product is achieved, the machining mode not only reduces the working efficiency, but also increases the cost, and therefore the negative angle bending one-step forming structure of the hardware stamping part is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

In order to compensate prior art's not enough, solve the negative angle and bend and all divide several steps and could the shaping to reach the final shape of product, this kind of processing mode not only influences efficiency but also the problem of incremental cost, the utility model provides a five metals stamping workpiece negative angle one-step forming structure of bending.

The utility model provides a technical scheme that its technical problem adopted is: the utility model relates to a negative angle bending one-step forming structure of a hardware stamping part, which comprises a die carrier, a lower die component, a die handle and a bending component; the lower die assembly is arranged on the inner side wall of the bottom end of the die frame; the bottom parts of the pair of die handles are fixedly connected with an upper clamping plate; the top of the upper clamping plate is provided with a T-shaped groove; the bending assembly is arranged on the upper clamping plate; the bending assembly comprises an upper base plate, a T-shaped block and a bending mechanism; the T-shaped block is connected in the T-shaped groove in a sliding manner; the upper backing plate is fixedly connected to the top of the T-shaped block; the bending mechanism is arranged at the bottom of the upper base plate.

Preferably, the bending mechanism comprises a bending punch and a punch insert; the bending punch is fixedly connected to the inner side wall of the bottom end of the upper base plate through an equal-height screw, and the bottom of the bending punch is provided with a buckling groove; the punch pin insert is connected in the buckling groove in a buckling mode.

Preferably, the lower die assembly comprises a lower die plate, a cushion block, a stripper plate and a stop plate; the lower template is fixedly connected to the inner side wall of the bottom end of the die frame; the group of cushion blocks is fixedly connected to the top of the lower template; the stripper plate is fixedly connected to the top of the cushion block; the stop plate is fixedly connected to the top of the stripper plate.

Preferably, the top of the lower template is provided with a groove; the inner side wall of the groove is connected with a lower mold insert in a sliding manner; and an adjusting mechanism is arranged on the side wall of the lower mold insert.

Preferably, the adjusting mechanism comprises a sliding block, a threaded rod and a push plate; the threaded rod is rotatably connected to the inner side wall of the lower template and is in threaded fit with the inner side wall of the lower template; the sliding block is connected inside the groove in a sliding mode through a spring and fixedly connected with the side wall of the lower die insert; the push plate is fixedly connected to the end of the threaded rod and is in contact with the side wall of the sliding block.

Preferably, the upper clamping plate is provided with an avoiding through hole; the top of the upper backing plate is provided with a pair of round holes.

Preferably, a group of guide posts are fixedly connected to the bottom of the upper clamping plate; a group of guide sleeves is fixedly connected to the inner side wall of the bottom end of the die carrier; the guide pillar is in sliding fit with the inner side wall of the guide sleeve.

Preferably, a first inclined hole is formed in the top of the stop plate; the top of the stripper plate is provided with a second inclined hole; the diameters of the first inclined hole and the second inclined hole are the same; the bending punch is in sliding fit with the first inclined hole, and the bending punch is in sliding fit with the second inclined hole.

The utility model discloses an useful part lies in:

1. in the utility model, the punch insert is used for bending the negative angle of the punch in one step through the matching work of the die carrier, the die handle, the lower die plate, the cushion block, the stripper plate, the stop plate, the upper clamp plate, the upper backing plate, the T-shaped block, the bending punch, the punch insert and the lower die insert, so that the punch is prevented from bending for many times, and the working efficiency is improved;

2. the utility model discloses in, the press drives the die shank and goes on gliding, and then promotes the punch holder and go on gliding, and at the punch holder gliding in-process, the drive guide pillar slides along the guide pin bushing inside wall, through the cooperation work of guide pillar guide pin bushing, provides the guide effect for the motion of punch holder.

Drawings

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

Fig. 1 is a schematic partial cross-sectional view of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

FIG. 4 is an enlarged view of a portion of FIG. 1 at B;

fig. 5 is a schematic three-dimensional structure diagram of the upper cushion plate of the present invention;

FIG. 6 is a schematic diagram of a half-section three-dimensional structure of the upper splint according to the present invention;

fig. 7 is a front view of the present invention.

In the figure: 1. a mold frame; 2. a lower die assembly; 21. a lower template; 211. a groove; 212. a lower mold insert; 22. cushion blocks; 23. a material removing plate; 231. a second inclined hole; 24. a stopper plate; 241. a first inclined hole; 25. an adjustment mechanism; 251. a slider; 252. a threaded rod; 253. pushing the plate; 254. a rectangular block; 255. a screw rod; 256. rotating the handle; 3. a die shank; 31. an upper splint; 311. avoiding the through hole; 32. a T-shaped slot; 33. a guide post; 34. a guide sleeve; 4. bending the assembly; 41. an upper base plate; 411. a circular hole; 42. a T-shaped block; 43. a bending mechanism; 431. bending the punch; 432. a punch insert; 433. and (4) buckling the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-6, a negative angle bending one-step forming structure of a hardware stamping part comprises a die carrier 1, a lower die assembly 2, a die shank 3 and a bending assembly 4; the lower die assembly 2 is arranged on the inner side wall of the bottom end of the die carrier 1; the bottom parts of the pair of die handles 3 are fixedly connected with an upper clamping plate 31; the top of the upper clamping plate 31 is provided with a T-shaped groove 32; the bending assembly 4 is arranged on the upper clamping plate 31; the bending assembly 4 comprises an upper backing plate 41, a T-shaped block 42 and a bending mechanism 43; the T-shaped block 42 is connected in the T-shaped groove 32 in a sliding mode; the upper backing plate 41 is fixedly connected to the top of the T-shaped block 42; the bending mechanism 43 is arranged at the bottom of the upper backing plate 41; during operation, when the negative angle bending operation of the stamping part is carried out, the die shank 3 is installed on the press, the stamping part to be bent is placed on the lower die assembly 2, and the press drives the die shank 3 to move, so that the bending mechanism 43 carries out negative angle bending on the stamping part.

Referring to fig. 1-6, as an embodiment of the present invention, the bending mechanism 43 includes a bending punch 431 and a punch insert 432; the bending punch 431 is fixedly connected to the inner side wall of the bottom end of the upper cushion plate 41 through an equal-height screw, and the bottom of the bending punch 431 is provided with a buckling groove 433; the punch insert 432 is buckled and connected in the buckling groove 433; during operation, when the negative angle bending operation of the stamping part is performed, the press machine is started, the die shank 3 and the upper clamp plate 31 are pushed to slide downwards, so that the bending punch 431 slides in the first inclined hole 241 and the second inclined hole 231, and the punch insert 432 contacts with the stamping part along with the gradual sliding of the bending punch 431, so that the negative angle bending operation of the stamping part is performed.

Referring to fig. 1 to 6, as an embodiment of the present invention, the lower mold assembly 2 includes a lower mold plate 21, a spacer 22, a stripper plate 23, and a stop plate 24; the lower template 21 is fixedly connected to the inner side wall of the bottom end of the die carrier 1; a group of cushion blocks 22 are fixedly connected to the top of the lower template 21; the stripper plate 23 is fixedly connected to the top of the cushion block 22; the stop plate 24 is fixedly connected to the top of the stripper plate 23; during operation, when the negative angle bending operation of the stamping part is performed, the cushion block 22 enables a gap to be reserved between the lower template 21 and the stripper plate 23, the stamping part is placed in the gap between the lower template 21 and the stripper plate 23, the bending punch 431 and the punch insert 432 are driven to slide downwards by starting the press machine, and then the punch insert 432 extrudes and bends the stamping part.

Referring to fig. 1-6, as an embodiment of the present invention, a groove 211 is formed at the top of the lower mold plate 21; a lower mold insert 212 is slidably connected to the inner side wall of the groove 211; the side wall of the lower mold insert 212 is provided with an adjusting mechanism 25; during operation, the lower die insert 212 is pushed through the adjusting assembly, the position of the lower die insert 212 is finely adjusted, and the negative angle bending operation of the stamping part is formed at one time through the matched operation of the punch insert 432 and the lower die insert 212, so that the stamping part is prevented from being bent for multiple times, and the working efficiency of the bending operation is improved.

Referring to fig. 1-6, as an embodiment of the present invention, the adjusting mechanism 25 includes a sliding block 251, a threaded rod 252 and a push plate 253; the threaded rod 252 is rotatably connected to the inner side wall of the lower template 21 and is in threaded fit with the inner side wall of the lower template 21; the sliding block 251 is connected inside the groove 211 in a sliding manner through a spring and fixedly connected with the side wall of the lower mold insert 212; the push plate 253 is fixedly connected to the end part of the threaded rod 252 and is contacted with the side wall of the sliding block 251; during operation, when going on fine-tuning to lower mould income son 212, through rotating threaded rod 252, threaded rod 252 passes through screw-thread fit with the lower bolster 21 inside wall, and at the pivoted in-process of threaded rod 252, the push pedal 253 extrusion slider 251 of threaded rod 252 tip to make slider 251 promote down mould income son 212 and remove, and then adjust the position of lower mould income son 212, make lower mould income son 212 and the better cooperation work of drift income son 432.

Referring to fig. 7, in another embodiment of the adjusting mechanism 25 of the present invention, the adjusting mechanism 25 includes a rectangular block 254, a screw rod 255 and a rotating handle 256; the screw rod 255 is rotatably connected to the inner side wall of the lower template 21; the rectangular block 254 is sleeved on the outer side wall of the screw rod 255, is connected with the screw rod 255 through a ball screw nut pair, is in sliding fit with the inner side wall of the groove 211, and is fixedly connected with the lower mold insert 212; the rotating handle 256 is fixedly connected with the end part of the screw rod 255; during operation, when the lower die insert 212 is adjusted, the rotating handle 256 is rotated to drive the screw rod 255 to rotate, the rectangular block 254 is sleeved on the screw rod 255 and is connected with the screw rod 255 through a ball screw nut pair, and during rotation of the screw rod 255, the rectangular block 254 slides along the inner side wall of the groove 211, so that the rectangular block 254 pushes the lower die insert 212 to move, and the matching angle between the lower die insert 212 and the punch insert 432 is adjusted.

Referring to fig. 1-6, as an embodiment of the present invention, the upper clamping plate 31 is provided with an avoiding through hole 311; the top of the upper backing plate 41 is provided with a pair of round holes 411; in the process of sliding down the bending punch 431, the T-shaped block 42 at the bottom of the upper backing plate 41 slides in the T-shaped groove 32, the upper clamping plate 31 is provided with the avoiding through hole 311, so that the bending punch 431 can slide down smoothly, and the die shank 3 cannot block the sliding of the upper backing plate 41 due to the round hole 411.

Referring to fig. 1-6, as an embodiment of the present invention, a set of guide posts 33 is fixed to the bottom of the upper clamp plate 31; a group of guide sleeves 34 are fixedly connected to the inner side wall of the bottom end of the die carrier 1; the guide post 33 is in sliding fit with the inner side wall of the guide sleeve 34; during operation, the press drives the die shank 3 to slide downwards, and then promotes the punch holder 31 and slides downwards, and at the gliding in-process of punch holder 31, drive guide pillar 33 and slide along the guide pin bushing 34 inside wall, through the cooperation work of guide pillar 33 guide pin bushing 34, provide the guide effect for the motion of punch holder 31.

Referring to fig. 1-6, as an embodiment of the present invention, a first inclined hole 241 is formed at the top of the stopper plate 24; the top of the stripper plate 23 is provided with a second inclined hole 231; the first inclined hole 241 and the second inclined hole 231 have the same diameter; the bending punch 431 is in sliding fit with the first inclined hole 241, and the bending punch 431 is in sliding fit with the second inclined hole 231; in operation, since the bending punch 431 is disposed in an inclined manner, in order to smoothly punch the stamping part by the bending punch 431 and the punch insert 432, the first inclined hole 241 and the second inclined hole 231 are disposed on the stopper plate 24 and the stripper plate 23, so that the bending punch 431 slides down along the inner side walls of the first inclined hole 241 and the second inclined hole 231, and the stamping part is bent.

The working principle is as follows: when the negative angle bending work of the stamping part is carried out, the die shank 3 is installed on a press, the top of the lower die plate 21 is fixedly connected with a cushion block 22, the cushion block 22 enables a gap to be reserved between the lower die plate 21 and a stripper plate 23, the stamping part is placed in the gap between the lower die plate 21 and the stripper plate 23, the position of the lower die insert 212 in the groove 211 is adjusted, the threaded rod 252 is rotated, the threaded rod 252 is matched with the inner side wall of the lower die plate 21 through threads, in the rotating process of the threaded rod 252, the push plate 253 at the end part of the threaded rod 252 extrudes the sliding block 251, so that the sliding block 251 pushes the lower die insert 212 to move, the position of the lower die insert 212 is adjusted, the lower die insert 212 and the punch insert 432 are better matched to work, in the negative angle bending work of the stamping part, the press is started, the die shank 3 and the upper clamp plate 31 are driven to slide downwards, so that the bending punch 431 slides in the first inclined hole 241 and the second inclined hole 231, along with the gradual sliding down of the bending punch 431, the punch insert 432 is contacted with the stamping part, so as to perform negative angle bending work on the stamping part, during the downward sliding of the bending punch 431, the T-block 42 at the bottom of the upper plate 41 slides in the T-shaped groove 32, the bending punch 431 can slide down smoothly by arranging the avoiding through hole 311 on the upper clamping plate 31, the arrangement of the round hole 411 can prevent the die shank 3 from blocking the sliding of the upper backing plate 41, in the process of sliding down the upper clamp plate 31, the guide post 33 is driven to slide along the inner side wall of the guide sleeve 34, the guide post 33 and the guide sleeve 34 are matched to provide a guiding function for the movement of the upper clamping plate 31, when the stamping part finishes the negative angle bending work, the die shank 3 is driven by the press to slide upwards, and the bending punch 431 and the punch insert 432 are slid back into the first inclined hole 241 and the second inclined hole 231, so that the punch insert 432 can perform the next negative-angle bending operation.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims (8)

1. The utility model provides a five metals stamping workpiece negative angle one step of forming structure of bending which characterized in that: comprises a die frame (1), a lower die component (2), a die handle (3) and a bending component (4); the lower die assembly (2) is arranged on the inner side wall of the bottom end of the die carrier (1); an upper clamping plate (31) is fixedly connected to the bottoms of the pair of die handles (3); the top of the upper clamping plate (31) is provided with a T-shaped groove (32); the bending assembly (4) is arranged on the upper clamping plate (31);

the bending assembly (4) comprises an upper backing plate (41), a T-shaped block (42) and a bending mechanism (43); the T-shaped block (42) is connected in a T-shaped groove (32) in a sliding way; the upper backing plate (41) is fixedly connected to the top of the T-shaped block (42); the bending mechanism (43) is arranged at the bottom of the upper backing plate (41).

2. The negative-angle bending one-step forming structure of the hardware stamping part according to claim 1, and is characterized in that: the bending mechanism (43) comprises a bending punch (431) and a punch insert (432); the bending punch head (431) is fixedly connected to the inner side wall of the bottom end of the upper base plate (41) through an equal-height screw, and a buckling groove (433) is formed in the bottom of the bending punch head (431); the punch pin insert (432) is connected in the buckling groove (433) in a buckling mode.

3. The negative-angle bending one-step forming structure of the hardware stamping part according to claim 2, and is characterized in that: the lower die assembly (2) comprises a lower die plate (21), a cushion block (22), a stripper plate (23) and a stop plate (24); the lower template (21) is fixedly connected to the inner side wall of the bottom end of the die carrier (1); the group of cushion blocks (22) are fixedly connected to the top of the lower template (21); the stripper plate (23) is fixedly connected to the top of the cushion block (22); the stop plate (24) is fixedly connected to the top of the stripper plate (23).

4. The negative-angle bending one-step forming structure of the hardware stamping part according to claim 3, characterized in that: the top of the lower template (21) is provided with a groove (211); the inner side wall of the groove (211) is connected with a lower die insert (212) in a sliding way; and an adjusting mechanism (25) is arranged on the side wall of the lower die insert (212).

5. The negative-angle bending one-step forming structure of the hardware stamping part according to claim 4, characterized in that: the adjusting mechanism (25) comprises a sliding block (251), a threaded rod (252) and a push plate (253); the threaded rod (252) is rotatably connected to the inner side wall of the lower template (21) and is in threaded fit with the inner side wall of the lower template (21); the sliding block (251) is connected inside the groove (211) in a sliding mode through a spring and fixedly connected with the side wall of the lower mold insert (212); the push plate (253) is fixedly connected to the end part of the threaded rod (252) and is contacted with the side wall of the sliding block (251).

6. The negative-angle bending one-step forming structure of the hardware stamping part according to claim 5, characterized in that: the upper clamping plate (31) is provided with an avoidance through hole (311); the top of the upper backing plate (41) is provided with a pair of round holes (411).

7. The negative-angle bending one-step forming structure of the hardware stamping part according to claim 6, characterized in that: the bottom of the upper clamping plate (31) is fixedly connected with a group of guide posts (33); a group of guide sleeves (34) are fixedly connected to the inner side wall of the bottom end of the die carrier (1); the guide post (33) is in sliding fit with the inner side wall of the guide sleeve (34).

8. The negative-angle bending one-step forming structure of the hardware stamping part according to claim 7, characterized in that: the top of the stop plate (24) is provided with a first inclined hole (241); the top of the stripper plate (23) is provided with a second inclined hole (231); the first inclined hole (241) and the second inclined hole (231) have the same diameter; the bending punch (431) is in sliding fit with the first inclined hole (241), and the bending punch (431) is in sliding fit with the second inclined hole (231).

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