CN215544343U - Stamping part for sofa and die thereof - Google Patents

Abstract

The utility model provides a stamping part for sofa, which comprises support rods and connecting rods, wherein the connecting rods are uniformly distributed between the two support rods, notches are formed in the support rods, the connecting rods penetrate through the notches, outward 90-degree flanges are arranged at two ends of each connecting rod, inward 180-degree flanges are arranged at two sides of each notch, and the 90-degree flanges are clamped and fixed by the 180-degree flanges. The utility model has the following beneficial effects: through 90 turn-ups and 180 turn-ups's connected mode replace traditional welding or bolted connection mode, and it has solved the stamping workpiece that the sofa bottom that exists among the prior art used and has connected into the support, and connected mode is too complicated technical problem, has produced the punching press operation through a few seconds, can accomplish the technological effect that the stamping workpiece connects.

Description

Stamping part for sofa and die thereof

Technical Field

The utility model relates to the technical field of sofa production, in particular to a stamping part for a sofa and a die thereof.

Background

The sofa is used as furniture commonly used in daily life, the bottom of the sofa usually uses stamped parts of metal structure to form a bottom bracket, and the stamped parts are usually connected by welding or bolts when being connected into the bracket.

Wherein the welding mode need carry out welding operation, and welding operation needs artifical the completion, and the process is comparatively complicated, and bolt fastening's mode is when the operation, need with the manual work bolt tightening fixed, also very complicated.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a stamping part for sofa and a die thereof, which solve the technical problem that the connection mode is too complicated when the stamping part for the sofa bottom is connected into a bracket in the prior art.

According to the embodiment of the utility model, the stamping part for the sofa is described, which comprises supporting rods and connecting rods, wherein the connecting rods are uniformly distributed between the two supporting rods, the supporting rods are provided with notches, the connecting rods penetrate through the notches, two ends of each connecting rod are provided with outward 90-degree flanges, two sides of each notch are provided with inward 180-degree flanges, and the 180-degree flanges clamp the 90-degree flanges for fixation.

Furthermore, the cross section of the connecting rod is in a door shape, and the cross section of the supporting rod is in a door shape or an L shape.

The embodiment of the utility model also discloses a die for producing the stamping part for the sofa, which comprises an upper die and a lower die, wherein the upper die is provided with two male die mechanisms for stamping 180-degree flanging and clamping the 180-degree flanging for fixing the 90-degree flanging, the lower die is provided with a bulge fixing groove, a female die fixing block is arranged in the bulge fixing groove, one ends of the two male die mechanisms are hinged with the two sides of the upper die, and the other ends of the two male die mechanisms are respectively connected with the upper die through sliding grooves.

Further, go up the mould and include roof, bottom plate and spring post, the spring post sets up in the roof both sides, and two bottom plates are connected respectively to two spring post bottoms, two the bottom plate articulates two terrace die mechanisms respectively, the roof is equipped with the joint protrudingly, two terrace die mechanism is equipped with the spout with the protruding cooperation department of joint, the joint is protruding to be gone into in the spout through round pin axle card.

Further, the male die mechanism comprises a male die plate, a male die fixing strip, male die positioning blocks and a male die block, the male die plate is hinged to the bottom plate and is connected with the top plate sliding groove, the male die fixing strip is fixed on one side, far away from the bottom plate, of the male die plate, a clamping groove is formed in the connecting position of the male die fixing strip and the male die plate, and a plurality of male die positioning blocks and the male die block are fixed in the clamping groove.

Furthermore, two positioning grooves are formed in the bulge fixing grooves, the two female die fixing blocks are fixed in the positioning grooves, female die positioning blocks are arranged at the rest positions of the positioning grooves, and the positioning grooves are parallel to the connecting rod.

Furthermore, protruding blocks are arranged on two sides of the lower die.

The technical principle of the utility model is as follows: through two structures of the 90-degree flanging and the 180-degree flanging, the connection of the stamping parts can be completed through a simple stamping mode.

Compared with the prior art, the utility model has the following beneficial effects: through 90 turn-ups and 180 turn-ups's connected mode replace traditional welding or bolted connection mode, and it has solved the stamping workpiece that the sofa bottom that exists among the prior art used and has connected into the support, and connected mode is too complicated technical problem, has produced the punching press operation through a few seconds, can accomplish the technological effect that the stamping workpiece connects.

Drawings

Fig. 1 is a schematic structural diagram of a stamping part according to an embodiment of the utility model.

Fig. 2 is a partially enlarged view of a portion a of fig. 1 when the cross section of the support bar is a door shape.

Fig. 3 is a partially enlarged view of a portion a of fig. 1 when the support rod has an L-shaped cross section.

Fig. 4 is a schematic structural diagram of a mold according to an embodiment of the present invention.

Fig. 5 is a schematic view of the connection structure of the male die mechanism of the embodiment of the utility model.

Fig. 6 is a schematic view of a connecting structure of a punch positioning block and a punch block according to an embodiment of the present invention.

Fig. 7 is a schematic structural view of a lower die according to an embodiment of the present invention.

In the above drawings: 100. a support bar; 110. a notch; 111. flanging for 180 degrees; 200. a connecting rod; 210. flanging for 90 degrees; 300. an upper die; 301. a male die mechanism; 310. a top plate; 311. clamping protrusions; 320. a base plate; 330. a spring post; 340. a convex template; 341. a chute; 350. a male die fixing strip; 351. a card slot; 360. a male die positioning block; 370. a male module; 400. a lower die; 410. a bulge fixing groove; 411. a female die fixing block; 412. positioning a groove; 413. a female die positioning block; 420. and (4) a convex block.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the embodiments.

The stamping part for the sofa shown in fig. 1-2 comprises support rods 100 and connecting rods 200, wherein the connecting rods 200 are uniformly distributed between the two support rods 100, a gap 110 is formed in each specific support rod 100, the connecting rod 200 penetrates through the gap 110, outward 90-degree flanges 210 are integrally formed at two ends of each connecting rod 200, inward 180-degree flanges 111 are integrally formed at two sides of each gap 110, and the 180-degree flanges 111 are clamped and fixed by the 90-degree flanges 210, so that the support rods 100 and the connecting rods 200 are not required to be connected through bolts or welding.

The cross section of the specific connecting rod 200 is in a door shape, the cross section of the supporting rod 100 is in a door shape or an L shape, wherein the connecting structure of the supporting rod 100 with the cross section in the door shape and the connecting rod 200 is shown in FIG. 2, and the connecting structure of the supporting rod 100 with the cross section in the L shape and the connecting rod 200 is shown in FIG. 3.

The mold for producing the stamping part for the sofa shown in fig. 4-5 comprises an upper mold 300 and a lower mold 400, wherein the upper mold 300 is provided with two male mold mechanisms 301 for stamping a 180-degree flanging 111 and clamping the 180-degree flanging 111 to the 90-degree flanging 210, the lower mold 400 is provided with a protrusion fixing groove 410 by screws, a female mold fixing block 411 is arranged in the protrusion fixing groove 410, one ends of the two male mold mechanisms 301 are hinged with two sides of the upper mold 300, the other ends of the two male mold mechanisms 301 are respectively connected with the upper mold 300 by adopting a sliding groove 341, and the hinged male mold mechanisms 301 punch the 180-degree flanging 111 of the support rod 100 to form a punch, so as to clamp the 90-degree flanging 210 of the connecting rod 200.

As shown in fig. 4-5, the upper die 300 includes a top plate 310, a bottom plate 320 and spring columns 330, the spring columns 330 are fixed on two sides of the top plate 310 by screws, the bottoms of the two spring columns 330 are respectively connected with the two bottom plates 320 by screws, the two bottom plates 320 are respectively hinged with the two male die mechanisms 301, the top plate 310 is integrally formed with a clamping protrusion 311, sliding grooves 341 are formed at the matching positions of the two sides of the two male die mechanisms 301 and the clamping protrusion 311, and the clamping protrusion 311 is clamped into the sliding grooves 341 by a pin shaft, so that the pin shaft can slide in the sliding grooves 341.

As shown in fig. 4, the male mold mechanism 301 includes a male mold plate 340, a male mold fixing strip 350, a male mold positioning block 360 and a male mold block 370, wherein the male mold plate 340 is hinged to the bottom plate 320 through a pin, the male mold plate 340 is connected to the sliding groove 341 of the top plate 310, the male mold fixing strip 350 is fixed on one side of the male mold plate 340 away from the bottom plate 320, specifically, as shown in fig. 6, a clamping groove 351 is formed at a connecting position of the male mold fixing strip 350 and the male mold plate 340, a plurality of male mold positioning blocks 360 and the male mold block 370 are fixed in the clamping groove 351, the male mold block 370 corresponds to a 180 ° flanging 111 position of the support rod 100, and the male mold positioning block 360 is used for filling a gap between the male mold blocks 370, so that the male mold blocks 370 can be adjusted according to the actual width and number of the connection rods 200.

As shown in fig. 7, two positioning grooves 412 are formed in the protrusion fixing groove 410, two die fixing blocks 411 are fixed in the positioning grooves 412, the remaining positions of the positioning grooves 412 are clamped into the die positioning blocks 413, and the positioning grooves 412 are parallel to the connecting rod 200, so that the die fixing blocks 411 can be adjusted according to the actual width of the supporting rod 100.

As shown in fig. 4 and 7, protruding blocks 420 are fixed to both sides of the lower mold 400 by screws to jack up the bottom plate 320.

When the stamping die is used, the supporting rod 100 is placed on two sides of the protrusion fixing groove 410, the connecting rod 200 is placed in the position of the notch 110 of the supporting rod 100, then the hydraulic press is started, the hydraulic press drives the upper die 300 to press downwards, so that the convex die block 370 contacts the position of the 180-degree flanging 111 in an inclined state, then the bottom plate 320 contacts the protrusion block 420, then the bottom plate 320 moves upwards to drive the convex die plate 340 to rotate, the convex die block 370 presses the 180-degree flanging 111 to be tightly attached to the 90-degree flanging 210, and finally the hydraulic press is lifted to take out the pressed stamping part.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims (7)

1. The utility model provides a stamping workpiece that sofa was used which characterized in that: the connecting rod is uniformly distributed between the two supporting rods, a notch is formed in each supporting rod, the connecting rods penetrate through the notches, outward 90-degree turned edges are arranged at two ends of each connecting rod, inward 180-degree turned edges are arranged on two sides of each notch, and the 90-degree turned edges are clamped and fixed by the 180-degree turned edges.

2. A sofa stamping according to claim 1, wherein: the cross section of the connecting rod is in a door shape, and the cross section of the supporting rod is in a door shape or an L shape.

3. A mold for producing the sofa stamping of claim 1, wherein: the stamping die comprises an upper die and a lower die, wherein two male die mechanisms which are used for stamping 180-degree turned edges and clamping the 180-degree turned edges to fix the 90-degree turned edges are arranged on the upper die, a protruding fixing groove is formed in the lower die, female die fixing blocks are arranged in the protruding fixing groove, one end of each male die mechanism is hinged to two sides of the upper die, and the other end of each male die mechanism is connected with the upper die through a sliding groove.

4. A mold as in claim 3 wherein: the upper die comprises a top plate, bottom plates and spring columns, the spring columns are arranged on two sides of the top plate, the bottoms of the two spring columns are respectively connected with the two bottom plates, the two bottom plates are respectively hinged with two male die mechanisms, the top plate is provided with a clamping protrusion, the matching position of the male die mechanisms and the clamping protrusion is provided with a sliding groove, and the clamping protrusion is clamped into the sliding groove through a pin shaft.

5. A mold in accordance with claim 4 wherein: the male die mechanism comprises a male die plate, a male die fixing strip, male die positioning blocks and a male die block, the male die plate is hinged to a bottom plate and is connected with a top plate sliding groove, the male die fixing strip is fixed on one side, far away from the bottom plate, of the male die plate, a clamping groove is formed in the connecting position of the male die fixing strip and the male die plate, and a plurality of male die positioning blocks and the male die block are fixed in the clamping groove.

6. A mold as in claim 3 wherein: two positioning grooves are formed in the protrusion fixing groove, the two female die fixing blocks are fixed in the positioning grooves, female die positioning blocks are arranged at the rest positions of the positioning grooves, and the positioning grooves are parallel to the connecting rod.

7. A mold as in claim 3 wherein: and the positions of two sides of the lower die are provided with convex blocks.

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