A bending mold for a bending forming machine

Abstract

This utility model relates to the field of bending die technology, specifically a bending die for a bending forming machine, including a stamping assembly, a bending mechanism installed outside the stamping assembly, and a bending die support mechanism installed outside the bending mechanism. The bending die support mechanism includes a base plate, a support frame fixedly installed on the top of the base plate, a screw hole in the middle of the support frame, a bidirectional lead screw movably installed inside the screw hole, and a load-bearing plate movably installed at the inner end of the bidirectional lead screw. By installing the bending die support mechanism on the bending machine workbench, the two bottom templates and two top templates can be adjusted and lengthened accordingly using the bidirectional lead screw. When it is necessary to adapt the bending process to plates of different widths, the correspondingly lengthened top and bottom templates can be adapted to fit them, thereby effectively improving the efficiency of the bending die in adapting to plates of different sizes.

Description

Technical Field

[0001] This utility model relates to the field of bending die technology, specifically a bending die for a bending forming machine. Background Technology

[0002] A bending die (bending machine mold) is a tool used to process materials into specific shapes by changing their physical state under the pressure of a bending machine. It consists of an upper die and a lower die and is mainly used for sheet metal stamping.

[0003] Common bending dies include V-shaped and U-shaped ones, which are mainly used for bending metal sheets into V-angles or rounded corners. However, the existing bending die dimensions are difficult to adapt to different widths of sheets, and the angle of the sheet after bending is not adequately compensated. This means that the stress at the bending part of the sheet is concentrated instantly, and springback occurs when the compensation force is insufficient after bending.

[0004] In view of this, a bending die for a bending forming machine was designed to solve the above problems. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows: A bending die for a bending forming machine includes a stamping assembly, a bending mechanism installed outside the stamping assembly, and a bending die bearing mechanism installed outside the bending mechanism. The bending die bearing mechanism includes a base plate, a support frame fixedly installed on the top of the base plate, a screw hole in the middle of the support frame, a bidirectional lead screw movably installed inside the screw hole, a load-bearing plate movably installed at the inner end of the bidirectional lead screw, and two symmetrically distributed outer frames fixedly installed at both ends of the load-bearing plate, with the two outer frames adapted to penetrate into the support frame. The bending mechanism includes two bottom templates and two top templates movably installed inside the support frame. A bottom die end plate is fixedly installed at the outer end of the bottom template, and a top die end plate is fixedly installed at the outer end of the top template. A limit rod is fixedly installed inside the bottom die end plate, with the other end of the limit rod adapted to penetrate into the top die end plate.

[0007] In a preferred embodiment, the present invention can be further configured such that: a sliding groove is provided inside the top template; The stamping assembly includes a stamping head mounted on an external hydraulic device. Two symmetrically distributed sliders are inserted into the bottom end of the stamping head, and the two sliders are fixedly mounted on the stamping head by four combination bolts. The sliders are movably mounted in a slide groove.

[0008] In a preferred embodiment, the present invention can be further configured such that the base plate has an overall U-shaped structure, and four evenly distributed slots are provided inside the base plate.

[0009] In a preferred embodiment, the present invention can be further configured such that: the outer frame has an insertion hole and a limiting groove in the plate segment, and the bottom mold end plate is inserted into the insertion hole, and the top mold end plate is movably installed in the limiting groove.

[0010] In a preferred embodiment, the present invention can be further configured such that the bending mechanism includes two reinforcing springs, which are disposed outside the limiting rod. The bottom end of the reinforcing spring is fixedly installed on the top of the bottom mold end plate, and the top end of the reinforcing spring is fixedly installed on the bottom of the top mold end plate.

[0011] In a preferred embodiment, the present invention can be further configured such that: two sets of studs are fixedly installed on the inner wall of the top template, and each set of studs consists of two studs; A nut is mounted on the outside of the stud.

[0012] In a preferred embodiment, the present invention can be further configured as follows: two angle pressure compensation plates are provided on the inner side of the top template, an extension screw is fixedly installed on the top of the angle pressure compensation plate, a nut is movably installed on the threaded section of the extension screw, and a support plate is movably installed on the outside of the nut; The tray is mounted on the top template by a set of studs.

[0013] In a preferred embodiment, the present invention can be further configured such that: the support frame is externally fixedly installed with a ring sleeve in the middle, and the stamping head is adapted to penetrate into the ring sleeve.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: 1. This utility model installs a bending die bearing mechanism on the workbench of a bending machine, and uses a bidirectional screw to adjust the two bottom templates and two top templates to extend accordingly. When it is necessary to adapt the bending process to plates of different widths, the correspondingly grown top templates and bottom templates can be adapted to them, thereby effectively improving the efficiency of the bending die in adapting to plates of different sizes.

[0015] 2. This utility model sets two symmetrically distributed angle pressure compensation plates in the gap reserved in the two top templates. The two angle pressure compensation plates are adapted to the two sides of the board to be bent by adjusting the nut with a wrench. After the two top templates are adjusted, the two angle pressure compensation plates rise and fall together, and the two sides of the board with different thicknesses can be compensated for bending, avoiding the rebound phenomenon caused by the instantaneous increase of stress on the two sides of the board with different thicknesses. Attached Figure Description

[0016] Figure 1 This is a schematic diagram illustrating the use of this utility model; Figure 2This is a bottom view of the present invention; Figure 3 This is an exploded view of the stamping component of this utility model; Figure 4 This is a schematic diagram of the bending mechanism of this utility model; Figure 5 This utility model Figure 4 An explosion diagram.

[0017] Figure label: 100. Stamping assembly; 110. Stamping head; 120. Slider; 130. Combination bolt; 200. Bending die bearing mechanism; 210. Support frame; 2101. Base plate; 2102. Screw hole; 220. Two-way lead screw; 230. Load-bearing plate; 2301. Outer frame; 2302. Insertion hole; 2303. Limiting groove; 240. Suspension; 300. Bending mechanism; 310. Bottom template; 3101. Bottom mold end plate; 320. Limiting rod; 330. Reinforcing spring; 340. Top template; 3401. Top mold end plate; 3402. Slide groove; 3403. Stud; 350. Support plate; 3501. Nut; 3502. Extended screw; 360. Angle pressure compensation plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0019] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0020] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a bending die for a bending forming machine.

[0021] Example 1: Combination Figures 1 to 5 As shown, the present invention provides a bending die for a bending forming machine, including a stamping assembly 100, a bending mechanism 300 installed outside the stamping assembly 100, and a bending die bearing mechanism 200 installed outside the bending mechanism 300. The bending die bearing mechanism 200 is used to cooperate with the bending mechanism 300 to bend the sheet metal, and the stamping assembly 100 is used to perform regular stamping and bending on the bending mechanism 300.

[0022] The bending die bearing mechanism 200 includes a base plate 2101, a support frame 210 fixedly installed on the top of the base plate 2101, a screw hole 2102 opened in the middle of the support frame 210, a double-acting screw 220 movably installed inside the screw hole 2102, a load-bearing plate 230 movably installed at the inner end of the double-acting screw 220, and two symmetrically distributed outer frames 2301 fixedly installed at both ends of the load-bearing plate 230, and the two outer frames 2301 are adapted to penetrate into the support frame 210. A suspension 240 is fixedly installed on the outside of the support frame 210, and a ring is provided in the middle of the suspension 240; The bending mechanism 300 includes two reinforcing springs 330, two bottom templates 310 and two top templates 340 movably installed inside the support frame 210. The bottom template 310 is fixedly installed with a bottom mold end plate 3101 at its outer end, and the top template 340 is fixedly installed with a top mold end plate 3401 at its outer end. A limit rod 320 is fixedly installed inside the bottom mold end plate 3101, and the other end of the limit rod 320 is adapted to penetrate into the top mold end plate 3401. The reinforcing springs 330 are located outside the limit rods 320. The bottom end of the reinforcing springs 330 is fixedly installed on the top of the bottom mold end plate 3101, and the top end of the reinforcing springs 330 is fixedly installed on the bottom of the top mold end plate 3401. The top template 340 has a groove 3402 inside; The stamping assembly 100 includes a stamping head 110 mounted on an external hydraulic device. Two symmetrically distributed sliders 120 are inserted into the bottom end of the stamping head 110. The two sliders 120 are fixedly mounted on the stamping head 110 by four combination bolts 130. The sliders 120 are movably mounted in the slide groove 3402. The stamping head 110 is adapted to penetrate into the ring sleeve.

[0023] The external hydraulic device is fixed to the top of the punch head 110 in advance. After the base plate 2101 and the support frame 210 are fixed on the platform of the bending machine, the metal sheet is inserted through the gap between the two bottom templates 310 and the two top templates 340 until the metal sheet is fully inserted. Then, the external hydraulic device pushes the entire punch assembly 100. Finally, the two top templates 340 and the two corner pressure compensation plates 360 will cooperate with the two bottom templates 310 to quickly bend the metal sheet. Adjust multiple nuts 3501 with a wrench until the two angle pressure compensation plates 360 are adapted to the two sides of the plate with different thicknesses, and finally the area of ​​the plate that is bent can be compensated and pressurized.

[0024] Example 2: Combination Figure 3 and Figure 4 As shown, based on Embodiment 1, the base plate 2101 has an overall U-shaped structure, and four evenly distributed slots are provided inside the base plate 2101. The outer frame 2301 has an insertion hole 2302 and a limiting groove 2303 in the plate segment, and the bottom mold end plate 3101 is inserted into the insertion hole 2302, and the top mold end plate 3401 is movably installed in the limiting groove 2303.

[0025] Preferably, the base plate 2101 is pre-fixed to the platform of the bending machine by multiple bolts, while the support frame 210 is fixed to the base plate 2101 by welding. When the bidirectional lead screw 220 is rotated, as the bidirectional lead screw 220 extends outward along the screw hole 2102, the load-bearing plate 230 installed inside the bidirectional lead screw 220 will push the two outer frames 2301 to extend synchronously. At this time, the two symmetrically distributed bottom templates 310 and two top templates 340 will adapt to the different widths of the plates and extend accordingly. Finally, under the stable load-bearing state of the support frame 210 and the bottom plate 2101, the accuracy of the bending angle after bending metal plates of different widths is ensured.

[0026] Example 3: Combination Figures 3 to 5 As shown, in the above embodiment, two sets of studs 3403 are fixedly installed on the inner wall of the top template 340, and the number of studs 3403 in each set is two. A nut is mounted on the outside of stud 3403; Two angle pressure compensation plates 360 are provided on the inner side of the top template 340. An extended screw 3502 is fixedly installed on the top of the angle pressure compensation plate 360. A nut 3501 is movably installed on the threaded section of the extended screw 3502. A support plate 350 is movably installed on the outside of the nut 3501. The support plate 350 is installed on the top template 340 by a set of studs 3403.

[0027] Preferably, the bottom ends of the two limiting rods 320 are fixedly installed inside the two bottom mold end plates 3101. In the initial state, the two reinforcing springs 330 will apply an upward lifting force to the two top mold end plates 3401. The two top mold plates 340 and the two bottom mold plates 310, which are lifted upward, will expand to the maximum gap. When the sheet metal to be bent is inserted along the gap, the punch head 110 pushed by the external hydraulic device will work with the two sliders 120 to apply pressure to the two top mold plates 340. Combined with the coordinated descent of the two angle pressure compensation plates 360, the metal sheet metal can be efficiently bent.

[0028] The working principle and usage process of this utility model are as follows: The base plate 2101 is fixedly installed on the workbench with bolts in advance. Then, the double-acting screw 220 is rotated until the double-acting screw 220 extends outward along the screw hole 2102. The load-bearing plate 230, which is movably installed at the inner end of the double-acting screw 220, will push the two outer frames 2301 to move outward laterally. The bottom template 310 and top template 340 installed in the two outer frames 2301 through the two bottom template end plates 3101 and the two top template end plates 3401 can be length adjusted. At this time, after the length of the two adjacent bottom templates 310 and the two top templates 340 is adjusted, the selected width of the plate can be pre-controlled for bending. After the external hydraulic device is fixed to the top of the punch head 110, the punch head 110, pulled by the external hydraulic device, together with the two sliders 120, drives the two symmetrically distributed top templates 340 to rise. Then, the sheet material to be bent is inserted into the gap between the bottom template 310 and the top template 340. As the external hydraulic device pushes the punch head 110 downward to apply pressure, the two top templates 340, together with the two corner pressure compensation plates 360, quickly bend the inserted sheet material. Under the pressure of the mold cavity formed by the two bottom templates 310, the pressed sheet material can be quickly bent and shaped. When bending of plates of different widths is required, the two-way lead screw 220 is used to push the load-bearing plate 230 and the two outer frames 2301. The two evenly distributed bottom templates 310 and two top templates 340 will extend around the support frame 210 until the two evenly distributed bottom templates 310 and two top templates 340 are extended to their longest state. Then, the wider plates can be effectively bent.

[0029] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A bending die for a press brake, comprising a punch assembly (100), characterized in that, It also includes a bending mechanism (300) installed outside the stamping assembly (100) and a bending die bearing mechanism (200) installed outside the bending mechanism (300). The bending die bearing mechanism (200) includes a base plate (2101), a support frame (210) is fixedly installed on the top of the base plate (2101), a screw hole (2102) is opened in the middle of the support frame (2102), a double-acting screw rod (220) is movably installed inside the screw hole (2102), a load-bearing plate (230) is movably installed at the inner end of the double-acting screw rod (220), and two symmetrically distributed outer frames (2301) are fixedly installed at both ends of the load-bearing plate (230), and the two outer frames (2301) are adapted to penetrate into the support frame (210); The bending mechanism (300) includes two bottom templates (310) and two top templates (340) movably installed inside the support frame (210). The bottom templates (310) are fixedly installed with bottom mold end plates (3101) at their outer ends, and the top templates (340) are fixedly installed with top mold end plates (3401) at their outer ends. The bottom mold end plates (3101) are fixedly installed with limit rods (320) inside, and the other end of the limit rods (320) is adapted to penetrate into the top mold end plates (3401).

2. A bending die for a bending and forming machine according to claim 1, characterized in that The top template (340) has a groove (3402) inside; The stamping assembly (100) includes a stamping head (110) mounted on an external hydraulic device. Two symmetrically distributed sliders (120) are inserted into the bottom end of the stamping head (110). The two sliders (120) are fixedly mounted on the stamping head (110) by four combination bolts (130), and the sliders (120) are movably mounted in the slide groove (3402).

3. A bending die for a bending and forming machine according to claim 1, characterized in that The base plate (2101) has a U-shaped structure, and four evenly distributed slots are provided inside the base plate (2101).

4. The bending mold for a bending forming machine according to claim 1, wherein The outer frame (2301) has an insertion hole (2302) and a limiting groove (2303) in the plate segment, and the bottom mold end plate (3101) is inserted into the insertion hole (2302), and the top mold end plate (3401) is movably installed in the limiting groove (2303).

5. A bending die for a bending forming machine according to claim 1, characterized in that, The bending mechanism (300) also includes two reinforcing springs (330), and the reinforcing springs (330) are disposed outside the limiting rod (320). The bottom end of the reinforcing springs (330) is fixedly installed on the top of the bottom mold end plate (3101), and the top end of the reinforcing springs (330) is fixedly installed on the bottom of the top mold end plate (3401).

6. A bending die for a bending forming machine according to claim 1, characterized in that, The inner wall of the top template (340) is fixedly equipped with two sets of studs (3403) that are symmetrically distributed, and each set of studs (3403) has two studs; The stud (3403) is externally fitted with a nut.

7. A bending die for a bending forming machine according to claim 6, characterized in that, The inner side of the top template (340) is provided with two angle pressure compensation plates (360). An extension screw (3502) is fixedly installed on the top of the angle pressure compensation plate (360). A nut (3501) is movably installed on the threaded section of the extension screw (3502). A support plate (350) is movably installed on the outside of the nut (3501). The tray (350) is mounted on the top template (340) by a set of studs (3403).

8. A bending die for a bending forming machine according to claim 1, characterized in that, The support frame (210) is externally fixedly equipped with a suspension (240), and a ring is provided in the middle of the suspension (240), and the stamping head (110) is adapted to penetrate into the ring.

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