Adjustable flat plate part bending die and using method thereof

Abstract

The invention discloses an adjustable flat plate piece bending die and a using method thereof, the die comprises a base, a core die, a sliding block and an adjusting piece, the base is connected with the core die, the sliding block and the adjusting piece, and one end of the sliding block is connected with the adjusting piece. Through the arrangement, bending parts with different angles can be machined by replacing V-shaped grooves with different angles, free positioning is achieved by moving the sliding block, positioning is determined without manually pasting a cushion block, the problems of repeated positioning, low part bending qualification rate and the like are solved, and the machining period of new parts is shortened.

Description

Technical Field

[0001] The invention belongs to the technical field of bending processing, and in particular relates to an adjustable flat plate bending die and a use method thereof. Background Art

[0002] Before finalization, bending parts are the most difficult part to process. Punches and hand presses are used as auxiliary equipment for bending flat parts, and self-prepared simple molds are used as the main tooling molds to ensure the quality of parts. For newly developed products, there are problems such as small quantity, many models, high processing difficulty, time-consuming and consumable materials for making simple molds, and it is difficult to locate when processing bending parts. Usually, manual positioning is used. Therefore, the qualified rate of parts is low and the processing time is long.

[0003] The traditional method of processing new flat-plate parts is to use simple cutting molds to ensure the size of the parts, which is time-consuming in debugging equipment, clamping molds, and finding positioning. Usually, due to inaccurate positioning, the bending line is not obvious or even tilted, the product qualification rate is low, affecting the normal delivery and use of the product.

[0004] For similar Figure 7 , 8 The flat plate bending parts are small and difficult to bend. The positioning reference needs to be determined by yourself, which increases the difficulty and uncertainty of parts processing. The cost of opening the mold before the product is finalized is relatively high. The existing method is to use a simple cutting mold to process the parts, and calculate the bending line positioning size of the flat plate parts according to the drawings. When processing the parts for the first time, a trial bending is required, and the positioning is adjusted after the trial bending, which increases the risk of repeated sticking of the positioning block. The existing molds such as Fig.10 , 11 As shown, it is composed of a female mold with a V-groove and a male mold. The female mold of the old mold has no clamping margin. When installing this mold, it is fixed to the working plane of the equipment by glue. Therefore, the mold is designed from the aspects of easy clamping and adjustable, and a universal flat plate bending mold is designed.

[0005] The patent document with application number CN2023218031634 discloses a bracket bending mold, including a lower die base and an upper die base. The top of the lower die base is provided with a V-shaped groove, and an adjustment mechanism is installed inside the V-shaped groove, and the adjustment mechanism is used to adjust the bending curvature of the bracket. The inclined plate is rotatably connected to the inside of the V-shaped groove through a rotating shaft at the bottom end, and the two inclined plates in a relatively rotating state are in a "V"-shaped structure. In this patent, the two inclined plates are movably connected in the V-shaped groove through a connecting rod, a bracket, a slider and a screw rod. There are high requirements for the strength of the hinge points of the connecting rod, the bracket and the slider. Since the inclined plate directly bears the impact force, the strength of the movable connection structure is lower than that of the fixed structure of this application. At the same time, the inclination angle accuracy of the inclined plate under the screw rod condition is limited, which is not suitable for high-precision bending processing. The disassembly of the lower die base is relatively inconvenient, which is easy to increase the subsequent maintenance cost.

[0006] The patent document with application number CN202210472229X discloses an adaptive precision bending forming mold and processing method for steel pipe furniture, in which the position adjustment of the forming die head is achieved by means of a first cylinder and a second cylinder; by starting the first cylinder to extend and move downward, the forming die head installed under the forming template can be moved downward, and in the process of moving downward, the forming die head can cooperate with the bending forming notch to perform V-shaped notch punching and waste unloading on the steel pipe placed in the steel pipe placement groove. The inclination angle of the steel pipe placement groove in this patent cannot be adjusted. Secondly, although the lower die seat is replaceable, there is no corresponding positioning structure on the steel pipe placement groove. For bending parts of different sizes, there will be certain inconveniences in the fixing process during the bending process.

[0007] The patent document with application number CN2017112834370 discloses a use and processing method of a special bending die for a safe door frame plate. The bending die includes an upper die assembly and a lower die assembly. When in use, the upper die assembly and the lower die assembly are first assembled; then the lower die assembly is placed on the workbench of the hydraulic press and fixed; then, the upper die assembly is hoisted onto the lower die assembly so that the stamping surface of the upper die and the stamping groove surface of the lower die are closely matched; then, the upper die assembly is fixed to the slide of the hydraulic press; finally, the upper die assembly bends the workpiece on the lower die. The upper die and the lower die of the patent can be disassembled and replaced separately, and are limited by the limit module at the same time, but a single upper die and a lower die have multiple inclined groove surfaces, and the positioning of the bending line before bending will be more inconvenient than a single bending line. Summary of the invention

[0008] In order to solve the above technical problems, the present invention provides an adjustable flat plate bending die and a method for using the same.

[0009] The present invention is achieved through the following technical solutions.

[0010] The invention provides an adjustable flat plate bending die, comprising a base, a core die, a slider and an adjusting piece, wherein the base is connected to the core die, the slider and the adjusting piece respectively, and one end of the slider is connected to the adjusting piece.

[0011] Preferably, a slide groove A, a slide groove B and a slide groove C are arranged on the base, the slide groove A and the slide groove B are arranged on the top of the base, the slider is placed in the slide groove A for sliding connection, and the core mold is placed in the slide groove B and the slide groove C for sliding connection.

[0012] Preferably, the slide groove A and the slide groove B are arranged in a cross shape, the slide groove C is arranged below the slide groove A, and the slide groove C and the slide groove B are arranged in a cross shape.

[0013] Preferably, holes A are respectively arranged at both ends of the slide groove A, and the holes A are arranged parallel to the slide groove A. A hole B is arranged at the bottom of the slide groove C, and the hole B is arranged perpendicular to the slide groove C.

[0014] Preferably, the core mold includes a bending portion and a connecting portion, both sides of the bending portion are respectively connected to the connecting portions, and the core mold is connected to the base through the connecting portions.

[0015] Preferably, a groove is provided on the bending portion, the groove is V-shaped, and a hole C is provided on the connecting portion.

[0016] Preferably, a hole D is provided at one end of the slider, and the length of the slider is less than half of the length of the base.

[0017] Preferably, the adjusting member is a screw.

[0018] Preferably, the base, the core mold and the slider are all made of Cr12MoV.

[0019] A method for using an adjustable flat plate bending die comprises the following steps:

[0020] S1: Place the slider into the slide groove A, place the core mold into the slide grooves B and C, make the adjustment piece pass through hole A and then extend into hole D for connection, and adjust the distance between the slider and the bending part.

[0021] S2: Use a screw to penetrate hole B and then extend into hole C to connect with the internal thread to fix the core mold on the base.

[0022] S3: Glue the second slider onto the slider placed in the slide groove A, place the bent part on top of the slide groove A, and make one end of the bent part contact with the second slider. At this time, the bending line of the bent part is aligned with the center line of the groove, and stamping and bending can be performed.

[0023] The beneficial effects of the present invention are:

[0024] The arrangement of the present invention can process bending parts of different angles by replacing V-shaped grooves of different angles, and realize free positioning by moving the slider, without the need for manual pasting of pads to determine positioning, thus solving the problems of repeated positioning and low qualified rate of part bending, and shortening the processing cycle for new parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the base of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the core mold of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the slider of the present invention;

[0029] Figure 5 is a cross-sectional view of the present invention;

[0030] Figure 6 This is a front view of a flat plate bent part A produced by the mold of the present invention;

[0031] Figure 7 This is a left view of a flat plate bent part A produced by the mold of the present invention;

[0032] Figure 8 This is a front view of a flat plate bent part B produced by the mold of the present invention;

[0033] Fig. 9 This is a left view of a flat plate bent part B produced by the mold of the present invention;

[0034] Fig.10 It is the main view of the existing mold;

[0035] Fig.11 It is a top view of the existing mold;

[0036] In the figure: 1-base, 11-slide groove A, 12-slide groove B, 13-slide groove C, 14-hole A, 15-hole B, 2-core mold, 21-bending part, 22-connecting part, 23-groove, 24-hole C, 3-slider, 31-hole D, 4-adjusting part, 5-bending part. DETAILED DESCRIPTION

[0037] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0038] Example:

[0039] like Figures 1 to 11As shown, an adjustable flat plate bending mold includes a base 1, a core mold 2, a slider 3 and an adjusting member 4, wherein the base 1 is connected to the core mold 2, the slider 3 and the adjusting member 4 respectively, and one end of the slider 3 is connected to the adjusting member 4.

[0040] The base 1 is provided with a slide groove A11, a slide groove B12 and a slide groove C13, wherein the slide groove A11 and the slide groove B12 are arranged on the top of the base 1, the slider 3 is placed in the slide groove A11 for sliding connection, and the core mold 2 is placed in the slide groove B12 and the slide groove C13 for sliding connection.

[0041] The slide groove A11 and the slide groove B12 are arranged in a cross shape, and the slide groove A11 is connected to the slide groove B12. The slide groove C13 is arranged below the slide groove A11, and the slide groove C13 and the slide groove B12 are arranged in a cross shape, and the slide groove C13 is connected to the slide groove B12.

[0042] Holes A14 are respectively arranged at both ends of the slide groove A11, and the holes A14 are arranged parallel to the slide groove A11. A hole B15 is arranged at the bottom of the slide groove C13, and the hole B15 is arranged perpendicular to the slide groove C13. The holes A14 and B15 can be screw holes.

[0043] The core mold 2 includes a bending portion 21 and a connecting portion 22, the two sides of the bending portion 21 are respectively connected to the connecting portion 22, the core mold 2 is connected to the base 1 through the connecting portion 22, the bending portion 21 is slidably connected to the slide groove B12, and the connecting portion 22 is slidably connected to the slide groove C13. This arrangement enables the core mold 2 with grooves 23 with different inclination angles to be replaced according to the angle at which the part needs to be bent, so as to improve the application range of the mold.

[0044] The bending portion 21 is provided with a groove 23 , and the groove 23 is V-shaped. The connecting portion 22 is provided with a hole C24 .

[0045] A hole D31 is provided at one end of the slider 3 , and the length of the slider 3 is less than half of the length of the base 1 .

[0046] The adjusting member 4 is a screw, and the adjusting member 4 is threadedly connected to the through hole A14. The adjusting member 4 is rotated to adjust the position of the slider 3 in the sliding groove A11.

[0047] The base 1, the core mold 2 and the slider 3 are all made of Cr12MoV, which has high strength and strong impact resistance.

[0048] A method for using an adjustable flat plate bending die comprises the following steps:

[0049] S1: Place the slider 3 into the slide groove A11, place the core mold 2 into the slide grooves B12 and C13, make the adjustment member 4 pass through the hole A14 and then extend into the hole D31 for connection, and adjust the distance between the slider 3 and the bending part 21.

[0050] S2: Use a screw to penetrate hole B15 and then extend into hole C24 to connect with the internal thread to fix the core mold 2 on the base 1.

[0051] S3: Glue the second slider 3 onto the slider 3 placed in the slide groove A11, place the bending piece 5 above the slide groove A11, and make one end of the bending piece 5 contact with the second slider 3. At this time, the bending line of the bending piece 5 is aligned with the center line of the groove 23, and then the stamping and bending can be performed;

[0052] The second slider 3 is used to adjust the height of the bending part 5 above the slide groove A11. It can be determined whether to use this slider 3 or a single-layer slider 3 according to needs.

[0053] The mold of the present invention is suitable for Figure 7 , 8 Production of flat plate bending parts.

Claims

1. An adjustable flat plate bending die, characterized in that: The invention comprises a base (1), a core mold (2), a slider (3) and an adjusting member (4); the base (1) is connected to the core mold (2), the slider (3) and the adjusting member (4) respectively; and one end of the slider (3) is connected to the adjusting member (4).

2. The adjustable flat plate bending die according to claim 1, characterized in that: The base (1) is provided with a slide groove A (11), a slide groove B (12) and a slide groove C (13); the slide groove A (11) and the slide groove B (12) are arranged on the top of the base (1); the slider (3) is placed in the slide groove A (11) for sliding connection; the core mold (2) is placed in the slide groove B (12) and the slide groove C (13) for sliding connection.

3. The adjustable flat plate bending die according to claim 2, characterized in that: The slide groove A (11) and the slide groove B (12) are arranged in a cross shape, the slide groove C (13) is arranged below the slide groove A (11), and the slide groove C (13) and the slide groove B (12) are arranged in a cross shape.

4. The adjustable flat plate bending die according to claim 2, characterized in that: Holes A (14) are respectively arranged at both ends of the slide groove A (11), and the holes A (14) are arranged parallel to the slide groove A (11). A hole B (15) is arranged at the bottom of the slide groove C (13), and the hole B (15) is arranged perpendicular to the slide groove C (13).

5. The adjustable flat plate bending die according to claim 1, characterized in that: The core mold (2) comprises a bending portion (21) and a connecting portion (22); both sides of the bending portion (21) are respectively connected to the connecting portion (22); and the core mold (2) is connected to the base (1) via the connecting portion (22).

6. The adjustable flat plate bending die according to claim 5, characterized in that: A groove (23) is provided on the bending portion (21), the groove (23) is V-shaped, and a hole C (24) is provided on the connecting portion (22).

7. The adjustable flat plate bending die according to claim 1, characterized in that: A hole D (31) is provided at one end of the slider (3), and the length of the slider (3) is less than half the length of the base (1).

8. The adjustable flat plate bending die according to claim 1, characterized in that: The adjusting member (4) is a screw.

9. The adjustable flat plate bending die according to claim 1, characterized in that: The base (1), the core mold (2) and the sliding block (3) are all made of Cr12MoV.

10. A method for using the adjustable flat plate bending die according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Place the slider (3) into the slide groove A (11), place the core mold (2) into the slide groove B (12) and the slide groove C (13), make the adjustment member (4) pass through the hole A (14) and then extend into the hole D (31) for connection, and adjust the distance between the slider (3) and the bending part (21); S2: Use a screw to penetrate through hole B (15) and then extend into the internal thread of hole C (24) to fix the core mold (2) on the base (1); S3: Glue the second slider (3) onto the slider (3) placed in the slide groove A (11), place the bending piece (5) above the slide groove A (11), and place one end of the bending piece (5) in contact with the second slider (3). At this time, the bending line of the bending piece (5) is aligned with the center line of the groove (23), and stamping and bending can be performed.

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