Metal punch forming system and method

Abstract

The invention relates to the technical field of metal stamping, in particular to a metal stamping forming system and method. An inner punch forming equipment main body of the metal punch forming system is a positioning core column, movable mold parts are slidably mounted at the edges of the four corners of the positioning core column correspondingly, sheet metal workpieces are detachably and fixedly mounted on the outer sides of the multiple movable mold parts in a sleeving mode, and the side portions of the movable mold parts can abut against and be attached to the inner side faces of the sheet metal workpieces; the method for conducting metal punch forming through the metal punch forming system comprises the following steps that firstly, the metal plate workpiece is installed on the two movable die parts in a sleeving mode; secondly, a plurality of trapezoidal sliding arms are controlled to synchronously unfold and move, a plurality of movable die parts are driven to unfold, and forming stamping machining of the L-shaped or U-shaped sheet metal parts is completed; according to the combined die, the workpiece surrounds the outer side of the combined die equipment, the combined dies are controlled to be opened mutually, the workpiece is jacked up from inside to outside till deformation, and stamping machining treatment on the workpiece is achieved.

Description

Technical Field

[0001] This invention relates to the field of metal stamping technology, and more specifically, to a metal stamping forming system and method. Background Technology

[0002] Stamping is a forming process that uses a press and dies to apply external force to sheet metal, strip, tube, and profile, causing plastic deformation or separation to obtain workpieces of the required shape and size. It mainly uses extrusion cutting to directly cut the workpiece structure of the required shape and size from the raw material.

[0003] An existing patent application (CN202310925050.X) describes a metal stamping forming apparatus. This apparatus mounts a stamping die on a reciprocating assembly. By controlling the continuous rotation of a crankshaft, the rack and pinion are kept in mesh with the rotating gear under the limiting action of a limiting block. This causes the rotating shaft to perform alternating clockwise and counterclockwise reciprocating motions. During the rotation of the shaft, the rotating frame rotates synchronously. Then, under the limiting action of the rotating groove and the U-shaped groove, the rotating column drives the stamping frame to perform up-and-down reciprocating motions at two extreme positions, ultimately ensuring the dual-station stamping operation of the stamping frame. However, this solution cannot process workpieces with multi-bend internal surface structures. Summary of the Invention

[0004] In order to achieve the goal of processing workpieces with multiple bends on the inner surface, the present invention adopts the following technical solution:

[0005] The purpose of this invention is to provide a scheme in which a workpiece is surrounded on the outside of a combined mold equipment, and the workpiece is pushed up from the inside to the outside and deformed by controlling the combined molds to open up to each other, so as to realize the stamping process of the workpiece and process a workpiece with a multi-bend inner surface structure.

[0006] To achieve the above objectives, the present invention provides a metal stamping system, including a sheet metal processing base and an internal stamping forming device and a heat treatment device mounted on the upper side of the sheet metal processing base.

[0007] The main body of the internal stamping forming equipment of this application is a positioning core column. Movable mold parts are slidably installed at the four corner edges of the positioning core column. Sheet metal workpieces are detachably sleeved and fixedly installed on the outer side of multiple movable mold parts. The side of the movable mold parts can abut and fit against the inner side of the sheet metal workpiece.

[0008] The method for metal stamping using the above-described metal stamping system includes the following steps:

[0009] Step 1: Fit the sheet metal workpiece onto the two movable mold parts;

[0010] Step 2: Control multiple trapezoidal sliding arms to expand and move synchronously, driving multiple movable mold parts to expand and operate, completing the forming and stamping process of L-shaped or U-shaped sheet metal parts. Attached Figure Description

[0011] The following figures are intended only to illustrate and explain the present invention, wherein:

[0012] Figure 1 This is a flowchart of the metal stamping forming method of the present invention;

[0013] Figure 2 This is a schematic diagram of the metal stamping system of the present invention. Figure 1 ;

[0014] Figure 3 This is a schematic diagram of the metal stamping system of the present invention. Figure 2 ;

[0015] Figure 4 This is a schematic diagram of the metal stamping system of the present invention. Figure 3 ;

[0016] Figure 5 This is a schematic diagram of the metal stamping system of the present invention. Figure 4 ;

[0017] Figure 6 This is a schematic diagram of the metal stamping system of the present invention. Figure 5 ;

[0018] Figure 7 This is a schematic diagram of the metal stamping system of the present invention. Figure 6 .

[0019] In the figure: Sheet metal workpiece 1; Sheet metal processing base 11; Slide table 12; U-shaped heating rod 13; Support seat 14; Telescopic actuator 15; Slide plate 16; Positioning core column 21; Insertion end 22; Guide column 23; Movable mold part 24; Clamp 25; Trapezoidal slide arm 31; Thickened splicing part 32; Drive arm 33; Limit seat 34; Synchronous adjustment plate 35; Drive column 36. Detailed Implementation

[0020] In order to achieve the goal of processing workpieces with multiple bends on the inner side, the present invention provides a metal stamping forming system, including a sheet metal processing base 11 and an inner stamping forming device and a heat treatment device installed on the upper side of the sheet metal processing base 11.

[0021] The following describes specific embodiments of the present invention.

[0022] Reference Figure 2-3The diagram illustrates the specific structure of the internal stamping forming equipment in the metal stamping forming system provided by the present invention:

[0023] A support base 14 is fixedly installed on the sheet metal processing base 11 of this application, and the plug end 22 at the end of the positioning core 21 is detachably and fixedly installed in the support base 14.

[0024] The main body of the internal stamping forming equipment is a positioning core column 21. Movable mold parts 24 are slidably installed at the four corner edges of the positioning core column 21. Sheet metal workpieces 1 are detachably sleeved and fixedly installed on the outer side of multiple movable mold parts 24. The side of the movable mold parts 24 can abut and fit against the inner side of the sheet metal workpiece 1.

[0025] Specifically: A chuck 25 is detachably and fixedly installed on the movable mold component 24. The chuck 25 clamps and is installed at both ends of the sheet metal workpiece 1. The chuck 25 is fastened by fasteners and installed on the movable mold component 24 by other fasteners, surrounding the workpiece on the outside of the combined mold equipment. Then, by controlling the opening and closing of multiple movable mold components 24, the workpiece is pushed up from the inside to the outside until it is deformed, thus processing a workpiece with a multi-bend inner side structure.

[0026] Reference Figure 2-3 The illustration shows an embodiment of the metal stamping system provided by the present invention, in which the side of the trapezoidal connector is on the same virtual plane as the sides of the two movable die parts 24, enabling omnidirectional stamping processing of the inner surface of the workpiece:

[0027] The positioning core 21 of this application has multiple guide posts 23 fixedly installed on its periphery for guiding and limiting the movable mold parts 24. The multiple guide posts 23 are divided into four groups, and the four movable mold parts 24 are slidably connected to the four groups of guide posts 23 respectively.

[0028] Among them, a trapezoidal connector is slidably installed between the two movable mold parts 24. By pushing the trapezoidal connector, the movable mold parts 24 on both sides can be opened synchronously, so that the side of the trapezoidal connector and the side of the two movable mold parts 24 are on the same virtual plane and fully abut against the inner surface of the supported workpiece, so as to perform all-round stamping processing on the inner surface of the workpiece.

[0029] The movable mold component 24 has a triangular structure, so that when multiple movable mold components 24 are folded together, there is space on the inside to store the positioning core 21 and the trapezoidal connecting component.

[0030] Reference Figure 2-3 and Figure 5-7 The following is an embodiment illustrating how the metal stamping system provided by the present invention increases the workpiece processing performance of the equipment:

[0031] The main body of the trapezoidal connector in this application is a trapezoidal sliding arm 31. The two sides of the trapezoidal sliding arm 31 abut and fit against the movable mold parts 24 on both sides respectively. Drive arms 33 are fixedly installed at both ends of the trapezoidal sliding arm 31. The drive arms 33 are slidably connected to the limiting seats 34 fixedly installed on the positioning core column 21. By controlling the sliding of the drive arms 33, the trapezoidal sliding arms 31 on both sides are pushed, so that the two trapezoidal sliding arms 31 unfold and move.

[0032] Furthermore, multiple thickened splicing parts 32 are detachably and fixedly connected to both sides of the trapezoidal sliding arm 31, thereby increasing the workpiece processing performance of the equipment by adjusting the number of thickened splicing parts 32 installed.

[0033] Reference Figure 4-5 The diagram illustrates the specific structure of the heat treatment equipment in the metal stamping system provided by this invention:

[0034] The heat treatment equipment of this application includes a slide table 12 and a U-shaped heating rod 13. Two slide tables 12 are slidably installed on the sheet metal processing base 11. The two slide tables 12 are symmetrically installed on both sides of the sheet metal processing base 11. Multiple U-shaped heating rods 13 are fixedly installed on the slide tables 12. The U-shaped heating rods 13 cover the outside of the sheet metal workpiece 1.

[0035] Among them, the U-shaped heating rod 13 can be an electric heating rod, and multiple U-shaped heating rods 13 on the two slides 12 are staggered to fully heat treat the sheet metal workpiece 1, making it easy to stamp and deform.

[0036] Manually control the slide table 12 to slide on the sheet metal processing base 11, leaving a large gap between the two slide tables 12 so that the positioning core 21 can be removed from the sheet metal processing base 11.

[0037] Reference Figure 2-3 and Figure 5-7 The illustration shows an embodiment of the metal stamping forming system provided by the present invention, which drives multiple drive arms 33 to move synchronously for forming and stamping L-shaped or U-shaped sheet metal parts:

[0038] The positioning core 21 of this application is rotatably mounted with a synchronous adjustment disk 35, and the synchronous adjustment disk 35 is provided with an inclined groove. The cylinder on the drive arm 33 is slidably connected to the inclined groove.

[0039] A drive column 36 is fixedly installed on the synchronous adjustment plate 35, and a telescopic driver 15 is installed on the sheet metal processing base 11. A slide plate 16 is fixedly installed on the movable end of the telescopic driver 15, and the drive column 36 is slidably connected to the slide plate 16.

[0040] The telescopic actuator 15 of this application can be an electric telescopic rod or a hydraulic cylinder. By starting the telescopic actuator 15, the slide plate 16 is moved vertically, the synchronous adjustment plate 35 is rotated, and multiple drive arms 33 are moved synchronously, so that multiple movable mold parts 24 are unfolded to complete the forming and stamping processing of L-shaped or U-shaped sheet metal parts.

[0041] Reference Figure 1-7 The following diagram illustrates the specific steps of metal stamping forming process performed by the metal stamping forming system provided by the present invention:

[0042] Step 1: Adjust the number of thickened splicing parts 32 on both sides of the trapezoidal sliding arm 31, and set the maximum unfolded size of multiple movable mold parts 24;

[0043] Step 2: Fix a chuck 25 at each end of the sheet metal workpiece 1, and fix the chuck 25 on two of the movable mold parts 24;

[0044] Step 3: Activate multiple U-shaped heating rods 13 to heat treat the sheet metal workpiece 1, making it easier to stamp and deform;

[0045] Step 4: Start the telescopic driver 15, which drives the slide plate 16 to move vertically, controls the synchronous adjustment plate 35 to rotate, and drives multiple drive arms 33 to move synchronously, so that multiple movable mold parts 24 unfold and operate to complete the forming and stamping processing of L-shaped or U-shaped sheet metal parts.

Claims

1. A metal stamping forming system, comprising a sheet metal processing base (11) and an internal stamping forming device and a heat treatment device mounted on the upper side of the sheet metal processing base (11); Its features are: The main body of the internal stamping forming equipment is a positioning core column (21). Movable mold parts (24) are slidably installed at the four corner edges of the positioning core column (21). Sheet metal workpieces (1) are detachably sleeved and fixedly installed on the outer side of multiple movable mold parts (24). The side of the movable mold parts (24) can abut and fit against the inner side of the sheet metal workpiece (1).

2. The metal stamping system according to claim 1, characterized in that: A support base (14) is fixedly installed on the sheet metal processing base (11), and the plug end (22) at the end of the positioning core (21) is detachably and fixedly installed in the support base (14).

3. The metal stamping system according to claim 1, characterized in that: The movable mold component (24) has a triangular structure, and a trapezoidal connecting component is slidably installed between the two movable mold components (24).

4. The metal stamping system according to claim 3, characterized in that: The main body of the trapezoidal connector is a trapezoidal sliding arm (31). The two sides of the trapezoidal sliding arm (31) abut against and fit against the movable mold parts (24) on both sides respectively. The two ends of the trapezoidal sliding arm (31) are respectively fixedly installed with drive arms (33). The drive arms (33) are slidably connected to the limiting seats (34) fixedly installed on the positioning core column (21).

5. The metal stamping system according to claim 4, characterized in that: The trapezoidal sliding arm (31) has multiple thickened splicing parts (32) that are detachably fixed to both sides.

6. The metal stamping system according to claim 1, characterized in that: The movable mold part (24) is detachably and fixedly mounted with a chuck (25), which is clamped and mounted on both ends of the sheet metal workpiece (1).

7. The metal stamping system according to claim 1, characterized in that: The heat treatment equipment includes a slide table (12) and U-shaped heating rods (13). Multiple U-shaped heating rods (13) are fixedly installed on the slide table (12) and the U-shaped heating rods (13) cover the outside of the sheet metal workpiece (1).

8. The metal stamping system according to claim 7, characterized in that: The slide (12) is slidably mounted on the sheet metal processing base (11).

9. The metal stamping system according to claim 8 or 7, characterized in that: There are two slides (12), which are symmetrically installed on both sides of the sheet metal processing base (11), and multiple U-shaped heating rods (13) on the two slides (12) are staggered.

10. A method for performing metal stamping using the metal stamping system of claim 4, comprising the following steps: Step 1: Adjust the verticality of the thickened splicing parts (32) on both sides of the trapezoidal sliding arm (31) and set the maximum unfolding size of multiple movable mold parts (24); Step 2: Fix a chuck (25) at each end of the sheet metal workpiece (1), and fix the chuck (25) on two of the movable mold parts (24); Step 3: Control multiple trapezoidal sliding arms (31) to move synchronously via the drive arm (33), thereby driving multiple movable mold parts (24) to unfold and complete the forming and stamping process of L-shaped or U-shaped sheet metal parts.

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