TWI717640B - Stamping die for metal pipe frame collar - Google Patents

Abstract

The present invention is a stamping die for a metal pipe frame collar. The stamping die includes: a molding module, a punch and a mold column. The molding module is provided with a molding hole, and a section of the punch is penetrated through the upper end of the molding hole. In the forming hole, the punch can move in the same direction with the forming module for punching action, and can slide in the forming hole. The lower end of the punch is provided with a first forming part, and the upper end of the first forming part is provided with a first forming part. Chamfer forming part, the mold column is in a fixed form that cannot be moved, and is arranged up and down opposite to the punch, and can be fitted with the forming hole of the forming module during punching. The upper end of the mold column is provided with a second forming part , A second chamfering forming part is arranged at the lower end of the second forming part; thereby, the manufacturing process of the Balda collar is simple, the manufacturing man-hours are reduced, the manufacturing cost is reduced, the economic benefits are met, and the price competitiveness is improved.

Description

Stamping die for metal pipe frame collar

The invention relates to a stamping die, in particular to a stamping die of a combined metal pipe frame collar.

According to, the modular metal pipe rack has many advantages such as simple assembly and disassembly, easy transportation and storage, making the modular metal pipe rack an indispensable item in modern homes, offices, and open stores. The early modular metal pipe racks , The frame is assembled by the lock screw, and then the storage layer is assembled on the frame. The assembly and disassembly of this kind of metal pipe frame requires the use of tools, which is troublesome and inconvenient to operate, so it is only necessary to use tools Assembled racks appeared, among which the bamboo-shaped metal tube rack was the most representative.

As shown in the twelfth and thirteenth figures, it is the conventional bamboo-jointed metal pipe rack, which includes four vertical rods 91, a plurality of positioning sleeves 92 and a plurality of grids 93. The four vertical rods 91 are respectively arranged in four A plurality of annular grooves 911 are formed at equal intervals on the vertical rod 91, and the positioning sleeve 92 is in a conical shape. Two pairs of half-pieces are connected to the vertical rod 91 by abutting, and the inner edge wall is provided with With the ribs 921 embedded in the ring groove 911 of the vertical rod 91, the four end corners of the grid 93 are connected with a hollow conical collar 931, so that the grid 93 can pass the vertical rod through the collar 931 The upper end of 91 is sheathed, and the inner cone wall of the collar 931 is tightly fitted with the outer cone of the positioning sleeve 92 for positioning, so that the net frame 93 can be combined with the vertical rod 91.

The collar 931 of the grid 93 generally adopts a plate that is pre-cut into a predetermined shape, and is crimped into a rough hollow cone-shaped rough embryo after preliminary processing, and then the rough embryo is shaped into a precise hollow cone semi-finished product. The upper end and the lower end of the inner edge wall of the hollow conical semi-finished product are respectively processed by turning to chamfer (to have a guiding effect and better safety), and the manufacture of the collar 931 is completed. However, the ferrule 931 has a complicated manufacturing process, which relatively increases manufacturing man-hours and increases manufacturing costs, which is not in line with economic benefits, and thus the price is not competitive.

In view of the above-mentioned shortcomings in the manufacturing of the conventional metal pipe rack collar, the inventors finally came up with the present invention based on the idea of thinking and creation, after many discussions, trial sample tests, and many modifications and improvements.

The invention provides a stamping die for a metal pipe frame collar, which is used to stamp and form the collar of the metal pipe frame. The collar has a ring height. The stamping die includes a molding module that can move up and down. The module is provided with a conical molding hole, the molding module has a height of the molding module, the height of the molding module is greater than the height of the collar; a punch, the upper end of the molding hole penetrates a section of the molding hole, the punch can When the forming module is displaced in the same direction to perform a punching action, and can be slid and displaced in the forming hole, a first forming part with a reduced diameter is provided at the lower end of the punch, and a first chamfer forming part is provided at the upper end of the first forming part; And a mold column, in a fixed form that cannot be moved, is arranged up and down opposite to the punch, and can be fitted into the molding hole of the molding module during punching. The upper end of the mold column is provided with a second molding part with a reduced diameter A second chamfering forming part is provided at the lower end of the second forming part.

The main purpose of the stamping die for the metal pipe rack collar of the present invention is to process the sheet material into a rough hollow cone-shaped ring-shaped rough embryo in advance during the stamping action, and place the ring-shaped rough embryo sleeve on the mold column. On the second forming part of the, the forming module and the punch are displaced in the direction of the die column to stamp the ring-shaped rough blank, and at the same time, the shaping and upper and lower end chamfering are performed to complete the manufacture of the ring. The manufacturing process of the ring is simple. , Manufacturing man-hours are reduced, manufacturing costs are reduced, in line with economic benefits, and price competitiveness is improved.

Please refer to the first figure, the second figure, the third figure, the fourth figure, the ninth figure, the tenth figure and the eleventh figure. The stamping die of the metal pipe frame collar of the present invention is used for stamping and forming the metal pipe frame The ring A, the ring A has a ring height h1, the stamping die includes: a molding module 10, a punch 20, a mold column 30, an upper mold base 40, a fixed ring 50 and a lower mold base 60.

The molding module 10 is cylindrical and can be moved up and down. The center of the molding module 10 is provided with a molding hole 11 in the shape of an upper small and a large cone. The molding module 10 has a molding module height h2, and the molding module height h2 is greater than the The height of the collar is h1.

The punch 20 passes through a section of the forming hole 11 from the upper end of the forming hole 11. The punch 20 can move in the same direction along with the forming module 10 to perform a punching action, and can slide in the forming hole 11. The lower end of the rod 20 is provided with a reduced-diameter first forming part 21, the first forming part 21 is in the shape of an equal-diameter cylinder, and a first chamfer forming part 211 is provided at the upper end.

The mold column 30 is in a fixed form that cannot be moved, and is arranged up and down opposite to the punch 20, and can fit into the molding hole 11 of the molding module 10 during punching. The upper end of the mold column 30 is provided with a reduced diameter Two forming parts 31. The second forming part 31 is in the shape of a conical column with a small upper part and a larger lower part, and a second chamfer forming part 311 is provided at the lower end.

The upper mold base 40 is provided with an upper seat plate 41, a circular sleeve 42 is provided on the top surface of the upper seat plate 41, and the center of the sleeve 42 is provided with a through hole 43 penetrating the upper seat plate 41. The through hole 43 is provided for The punch 20 is sleeved, and the punch 20 can move in the same direction with the upper die base 40 to perform a punching action, and can slide in the sleeve hole 43. In addition, the upper seat plate 41 is provided with two coupling holes 411.

The lower mold base 50 is a fixed shape that cannot be moved, and the mold column 30 is disposed on the lower mold base 50.

The fixing ring 60 is detachably fixed to the bottom surface of the upper seat plate 41. The upper surface of the fixing ring 60 is provided with two screw holes 61. Two screws 62 are passed through the two coupling holes 411 of the upper seat plate 41 to screw the fixing The two screw holes 61 on the top surface of the ring 60 are locked, the molding module 10 is sleeved in the fixing ring 60 by a tight fit, and the molding hole 11 of the molding module 10 is aligned with the threading hole 43 of the upper mold base 40 It is connected.

When the present invention performs the punching action, as shown in the fifth to the eleventh figure, the plate cut into a predetermined shape is preliminarily processed and crimped into a rough hollow cone-shaped annular rough embryo A1, and the rough embryo A1 is placed On the second forming part 31 of the mold column 30, the forming module 10 and the punch 20 are displaced downward in the direction of the mold column 30 to press the ring-shaped rough blank A1, and the ring-shaped blank is punched using the forming hole 11 of the forming module 10 The outer edge wall of the rough blank A1 achieves external shaping and prevents expansion. At the same time, the first forming part 21 of the punch 20 and the second forming part of the mold column 30 are used to punch the inner edge wall of the annular rough blank A1 to reach the inner Hole shaping and precise size, and using the first chamfer forming part 211 of the punch 20 and the second chamfer forming part 311 of the mold post 30 to punch the upper and lower ends of the inner edge wall of the ring-shaped rough blank A1 respectively Angle A2, forming a finished product with precise dimensions and chamfered A2 hollow conical collar A on the upper and lower ends of the inner wall.

After stamping and forming, the forming module 10 and the punch 20 are displaced upwards and away from the mold column 30. At this time, the stamped and formed collar A is secured in the forming hole 11 of the forming module 10, and moves along with the forming module 10 When the forming module 10 and the punch 20 move upward to a predetermined position, the forming module 10 remains stationary, and the punch 20 moves downward for a certain distance to push the finished collar A out of the forming hole of the forming module 10 11. Then the punch 20 moves upward to return to the original position for the next punching action.

From the structure of the above specific embodiment, the following benefits can be obtained:

The stamping die of the metal pipe frame collar of the present invention, when performing the stamping action, the plate is processed and crimped into a rough hollow cone-shaped ring-shaped rough embryo A1 in advance, and the ring-shaped rough embryo A1 is placed on the first mold column 30. On the second forming part 31, after the forming module 10 and the punch 20 are displaced in the direction of the mold column 30, the ring-shaped rough blank A1 is punched, and the ring-shaped rough blank A1 is shaped and the upper and lower ends are chamfered at the same time. To complete the manufacture of collar A, Bida collar A has a simple manufacturing process, reduced manufacturing man-hours, high strength, reduced manufacturing costs, and economic benefits, thereby increasing price competitiveness.

[Prior Art] 91: Upright rod 911: Ring groove 92: Positioning sleeve 921: Rib 93: Net frame 931: Collar [The invention] 10: Forming module 11: Forming hole 20: Punch 21: First forming part 211: first chamfer forming part 30: mold column 31: second forming part 311: second chamfer forming part 40: upper mold seat 41: upper seat plate 411: coupling hole 42: sleeve 43: sleeve hole 50: Lower mold base 60: fixed ring 61: screw hole 62: screw A: collar A1: circular rough blank A2: chamfer h1: collar height h2: molding module height

The first figure is a three-dimensional cross-sectional view of the stamping die of the present invention. The second figure is a three-dimensional exploded view of the stamping die of the present invention. The third figure is a three-dimensional view of the thick embryo of the collar of the present invention. The fourth figure is a cross-sectional view of the rough embryo of the present invention. The fifth figure is a schematic diagram (1) of the stamping and forming operation of the present invention. Figure 6 is a schematic diagram (2) of the stamping and forming operation of the present invention. Figure 7 is a schematic diagram (3) of the stamping and forming operation of the present invention. Figure 8 is a schematic diagram (4) of the stamping and forming operation of the present invention. The ninth figure is a schematic diagram (5) of the pressing and forming operation of the present invention. The tenth figure is a three-dimensional view of the finished ring of the present invention. Figure 11 is a cross-sectional view of the finished collar of the present invention. Figure 12 is a three-dimensional view of a conventional metal pipe rack. Figure 13 is a partial three-dimensional exploded view of the conventional metal pipe rack.

10: Forming module

11: forming hole

20: Punch

21: The first forming part

211: The first chamfer forming part

30: mold column

31: The second forming part

311: The second chamfer forming part

40: Upper die seat

41: Upper seat plate

411: Combination hole

42: sleeve

43: piercing hole

50: Lower mold seat

60: fixed ring

61: screw hole

62: Screw

A1: Circular rough embryo

Claims (5)

A stamping die for a metal pipe frame collar is used to stamp and form the collar of a metal pipe frame. The collar has a ring height. The stamping die includes: a molding module that can move up and down, the molding module is provided with a A molding hole with a small upper and a large cone, the molding module has a height of the molding module, the height of the molding module is greater than the height of the collar; a punch, a section of the punch is penetrated in the molding hole from the upper end of the molding hole, the punch It can move in the same direction with the forming module for punching, and can slide in the forming hole. The lower end of the punch is provided with a reduced diameter first forming part, and the upper end of the first forming part is provided with a first chamfer forming part ; And a mold column, a fixed form that cannot be moved, is arranged up and down opposite to the punch, and can be fitted with the molding hole of the molding module when punching, the upper end of the mold column is provided with a second molding with a reduced diameter A second chamfering forming part is provided at the lower end of the second forming part. According to the stamping die of the metal pipe holder collar described in the first item of the scope of patent application, the first forming part of the punch is in the shape of a cylinder with an equal diameter. The stamping die of the metal pipe frame collar described in the first item of the scope of patent application, wherein the second forming part of the die column is a conical column with a small upper part and a larger lower part. For example, the stamping die of the metal pipe frame collar described in the first item of the scope of patent application, further includes: an upper die seat, a lower die seat and a fixing ring, the upper die seat is provided with an upper seat plate, and the top surface of the upper seat plate is arranged A sleeve, the center of the sleeve is provided with a through hole penetrating the upper seat plate, the through hole is for the punch to pass through, the punch can move in the same direction with the upper die seat for punching action, and Sliding displacement in the sleeve hole, the lower mold base is a non-movable fixed form, the mold column is arranged on the lower mold base, the fixing ring is detachably fixed to the bottom surface of the upper base plate, and the molding module utilizes a tight fit It is sleeved and clamped in the fixing ring, and the molding hole of the molding module is aligned and communicated with the sleeve hole of the upper mold base. For the stamping die of the metal pipe frame collar described in item 4 of the scope of patent application, the fixing ring is detachably fixed to the bottom surface of the upper seat plate, and the upper seat plate is provided with two coupling holes on the upper die seat. The top surface of the fixing ring is provided with two screw holes, two screws are passed through the two coupling holes of the upper seat plate, and the two screw holes on the top surface of the fixing ring are screwed and locked.

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