Sheet metal part production stamping device

Abstract

The invention relates to the technical field of stamping devices, and discloses a stamping device for sheet metal part production. Comprising a base, a rack, a workbench, a lower die, a first power mechanism, an upper die, a second power mechanism, a left side die, a third power mechanism, a right side die, a lower pushing through groove, a fourth power mechanism, a lower pushing die, a lower sinking groove, an inner pushing through groove, a double-end power mechanism, a front pushing die, a rear pushing die and a metal plate positioning block. The dies are cooperatively controlled through the multiple sets of hydraulic cylinders, multi-part and multi-direction punch forming of sheet metal parts can be completed without replacing the dies, the production period is greatly shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping devices, in particular to a stamping device for producing sheet metal parts. Background Art

[0002] In such Figure 1 During the production and processing of the sheet metal parts shown, there are multi-directional bending and different shape forming parts. When using conventional stamping devices, the function is single and usually only single-directional stamping of the sheet metal parts can be achieved. For multi-part, multi-directional synchronous or step-by-step precise stamping, it is often necessary to replace the stamping die and adjust the stamping mechanism multiple times. Not only is the operation cumbersome and time-consuming, which reduces production efficiency, but it is also easy to cause errors due to multiple clamping and positioning, affecting the forming accuracy and quality of the sheet metal parts. It is difficult to meet the sheet metal processing requirements for high efficiency, precision, and one-time forming. Therefore, there is an urgent need for a device that can achieve one-time stamping of the sheet metal parts. Summary of the Invention

[0003] The present invention mainly provides a sheet metal production stamping device to solve the problems raised in the above background technology, realize one-time precise stamping and forming of complex sheet metal parts, and improve production efficiency and product quality.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The cam is provided with a first power mechanism, and an upper mold is provided on the output end of the first power mechanism corresponding to the position above the lower mold; a second power mechanism is provided on the workbench on the left side of the lower mold, a left mold is provided on the second power mechanism, a third power mechanism is provided on the right side of the upper mold, and a right mold is provided on the third power mechanism. The upper mold is provided with a downward pushing groove, and a fourth power mechanism is provided in the downward pushing groove, and a downward pushing groove is provided on the output end of the fourth power mechanism. The lower mold is provided with a sinking groove corresponding to the lower pushing mold, and an inner pushing groove is provided in the lower mold, and a double-headed power mechanism is provided in the inner pushing groove, and the front output end of the double-headed power mechanism is provided with a front pushing mold, and the rear output end of the double-headed power mechanism is provided with a rear pushing mold; a sheet metal positioning block is provided on the lower mold.

[0006] Furthermore, the first, second, third, fourth, and dual-head power mechanisms all utilize hydraulic cylinders. These hydraulic cylinders connect to external hydraulic power components via hydraulic tubing and hydraulic connectors. A hydraulic valve assembly (including a reversing valve, a pressure valve, and a flow valve) precisely controls the direction, pressure, and flow of the hydraulic fluid, enabling precise movement of each mold. Commonly used hydraulic tubing includes rubber and metal. Rubber tubing offers excellent flexibility and is easily bent and arranged, making it suitable for connecting hydraulic cylinders that require frequent movement or relatively flexible positioning. Metal hydraulic tubing (such as stainless steel or copper tubing) offers greater pressure resistance and corrosion resistance, making it suitable for applications involving high pressure, high temperature, or where tubing reliability is critical. Connections to hydraulic cylinders and other hydraulic components are typically made using crimped or welded connectors. Crimped connectors involve inserting the tubing into a connector sleeve, which is then crimped onto the tubing using specialized equipment to create a tight connection. Welded connectors secure the tubing to the connector by welding. The system also includes directional control valves, pressure control valves, and flow control valves located along the hydraulic tubing pathways. Directional control valves, such as reversing valves, control the flow of hydraulic oil, thereby changing the direction of motion of a hydraulic cylinder, for example, enabling it to extend or retract. Pressure control valves, such as relief valves, primarily limit the maximum pressure in a hydraulic system. When system pressure exceeds the set value of the relief valve, the valve opens, allowing excess hydraulic oil to flow back to the tank, protecting components in the hydraulic system from damage caused by excessive pressure. Flow control valves, such as throttle valves, adjust the flow of hydraulic oil by varying the flow area of ​​the valve port, thereby controlling the speed of the hydraulic cylinder.

[0007] Furthermore, a block groove is provided on the lower die, an elastic support mechanism is provided in the block groove, and the sheet metal positioning block is provided on the elastic support mechanism. Specifically, the elastic support mechanism includes a positioning guide rod installed in the block groove, a positioning guide hole is provided on the sheet metal positioning block to match the positioning guide rod, and a spring is sleeved on the positioning guide rod. The length of the spring is smaller than the positioning guide rod after being pressed down by the sheet metal positioning block, thereby preventing the sheet metal positioning block from being pushed out of the positioning guide rod. The upper surface of the sheet metal positioning block is higher than the sheet metal part in the normal state, and a part of the sheet metal part is located in the block groove, so that when the upper die presses down on the sheet metal part, the sheet metal positioning block is located in the long rectangular hole of the sheet metal part to position and support the sheet metal part, making it difficult for the sheet metal part to move out of position or warp in the middle. By adopting this structure, the sheet metal positioning block can be used to position and support the sheet metal parts, thereby preventing the sheet metal parts from moving out of position and the middle part from bending and warping when it is subjected to the downward pressure of the upper mold on both sides. At the same time, the upper mold can also compress the elastic support mechanism when pressing down, so that the sheet metal positioning block moves down further into the block groove, avoiding affecting the stamping and forming of the plate by the upper and lower molds.

[0008] Furthermore, a plurality of lower lifting through holes are opened on the front and rear sides of the lower mold; a plurality of lower lifting push rods are arranged on the workbench corresponding to the lower lifting through holes, and the push rods of the lower lifting push rods are located in the lower lifting through holes.

[0009] Furthermore, the lower die is provided with a plurality of lifting guide cylinders, and the upper die is provided with lifting guide rods corresponding to the lifting guide cylinders. With this structure, the lifting guide rods and the guide cylinders slide together to provide precise guidance for the upper die to rise and fall, avoid die deviation, and improve stamping accuracy.

[0010] Furthermore, the upper die is provided with an upper lifting through-hole, and a lifting push rod is provided on the upper die corresponding to the upper lifting through-hole, wherein the push rod of the upper lifting push rod is located in the upper lifting through-hole. Specifically, the upper lifting push rod and the lower lifting push rod can be any existing push rod as long as they can realize demolding after the sheet metal part is formed, such as an electric push rod or a hydraulic push rod.

[0011] Beneficial effects: By collaboratively controlling each mold (upper mold, side mold, push mold, etc.) through multiple groups of hydraulic cylinders, the stamping and forming of sheet metal parts in multiple positions and directions can be completed without changing the mold, which greatly shortens the production cycle and improves production efficiency; the sheet metal positioning block can position the sheet metal, and at the same time, in conjunction with the elastic support part, the upper surface of the positioning block will exceed the upper plane of the sheet metal part placed on the lower mold, so that the front and rear sides of the upper mold can prevent the sheet metal part from bending and warping when cooperating with the lower mold to bend the sheet metal part. At the same time, after the upper mold continues to press down, it can also compress the elastic support mechanism, so that the sheet metal positioning block moves down into the block groove, avoiding affecting the stamping and forming of the plate by the upper and lower molds. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the sheet metal part turning over after forming;

[0013] Figure 2 This is a schematic diagram of the lower die base of this embodiment without the sheet metal positioning piece installed;

[0014] Figure 3 This is an axial schematic diagram of a sheet metal production stamping device according to this embodiment;

[0015] Figure 4 This is an upward oblique schematic diagram of a sheet metal production stamping device according to this embodiment.

[0016] Figure numerals: base 1, frame 2, workbench 3, lower mold 4, first power mechanism 5, upper mold 6, second power mechanism 7, left mold 8, third power mechanism 9, right mold 10, fourth power mechanism 11, lower push mold 12, sinking groove 13, inner push through groove 14, double-head power mechanism 15, front push mold 16, sheet metal positioning block 17, block groove 18, elastic support mechanism 19, lower lifting push rod 20, lifting guide cylinder 21, rising push rod 22. DETAILED DESCRIPTION

[0017] The technical solution of a sheet metal production stamping device according to the present invention will be further described in detail below in conjunction with embodiments.

[0018] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0019] like Figure 2 、 Figure 3 、 Figure 4As shown, a sheet metal production stamping device of this embodiment includes a base 1 and a frame 2 arranged on the base 1, a workbench 3 is provided on the base 1, a lower die 4 is provided on the workbench 3, a first power mechanism 5 is provided on the frame 2, and an upper die 6 is provided at the output end of the first power mechanism 5 corresponding to the position above the lower die 4; a second power mechanism 7 is provided on the workbench 3 on the left side of the lower die 4, a left die 8 is provided on the second power mechanism 7, a third power mechanism 9 is provided on the right side of the upper die 6, and a third power mechanism 9 is provided on the output end of the third power mechanism 9. A right mold 10 is provided. The upper mold 6 is provided with a downward push groove, in which a fourth power mechanism 11 is provided. A downward push mold 12 is provided at the output end of the fourth power mechanism 11. A sinking groove 13 is provided on the lower mold 4 corresponding to the downward push mold 12. The lower mold 4 is provided with an inner push groove 14. A double-headed power mechanism 15 is provided in the inner push groove 14. The front output end of the double-headed power mechanism 15 is provided with a front push mold 16, and the rear output end of the double-headed power mechanism 15 is provided with a rear push mold. The lower mold 4 is provided with a sheet metal positioning block 17. The first power mechanism 5, the second power mechanism 7, the third power mechanism 9, the fourth power mechanism 11, and the double-headed power mechanism 15 all use hydraulic cylinders. The lower mold 4 is provided with a block groove 18, in which an elastic support mechanism 19 is provided. The sheet metal positioning block 17 is provided on the elastic support mechanism 19. Specifically, the elastic support mechanism 19 includes a positioning guide rod installed in the block groove 18. The sheet metal positioning block 17 is provided with a positioning guide hole that matches the positioning guide rod, and a spring is mounted on the positioning guide rod. The length of the spring is less than the positioning guide rod after being pressed down by the sheet metal positioning block 17, thereby preventing the sheet metal positioning block 17 from being pushed out of the positioning guide rod. In the normal state, the upper surface of the sheet metal positioning block 17 is higher than the sheet metal part, and a portion of the sheet metal part is located in the block groove 18. Therefore, when the upper mold 6 presses down on the sheet metal part, the sheet metal positioning block 17 is located in the long rectangular hole of the sheet metal part to position and support the sheet metal part, making it less likely to move out of position or warp in the middle. The lower mold 4 is provided with multiple lower lifting holes on the front and back sides; the workbench 3 is provided with multiple lower lifting push rods 20 corresponding to the lower lifting holes, and the push rods of the lower lifting push rods 20 are located in the lower lifting holes. The lower mold 4 is provided with a plurality of lifting guide cylinders 21, and the upper mold 6 is provided with lifting guide rods corresponding to the lifting guide cylinders 21. The upper mold 6 is provided with an upper lifting through hole, and the upper mold 6 is provided with a lifting push rod 22 corresponding to the upper lifting through hole, and the push rod of the lifting push rod 22 is located in the upper lifting through hole.

[0020] When in use, place the pre-treated flat sheet metal part on the lower die 4, and use the sheet metal positioning block 17 to cooperate with the long rectangular hole of the sheet metal for preliminary positioning; the first power mechanism 5 drives the upper die 6 to descend, and the upper die 6 cooperates with the lower die 4 to first bend the front and rear side panels of the sheet metal downward so that the front side is 90° and the rear side is inclined for preliminary forming. In this process, the lifting guide rod and the guide cylinder are precisely guided to ensure the accuracy of the mold matching; after the upper die 6 and the lower die 4 are initially fixed to the sheet metal, the second power mechanism 7 drives the left die 8 to rise, and cooperates with the left contour of the upper die 6 to position the left extension wing of the sheet metal upward. The third power mechanism 9 drives the right die 10 to descend, and cooperates with the right contour of the lower die 4 to shape the right extended wing of the sheet metal downward; the fourth power mechanism 11 pushes the lower push die 12 to descend, and presses the sheet metal block into the sinking groove 13 to cooperate with the groove wall to shape it; the double-head power mechanism 15 drives the front push die 16 and the rear push die to move in the opposite direction, and cooperates with the upper die 6 to form the lower sides of the front and rear side panels of the sheet metal in parallel; after the stamping is completed, the first power mechanism 5 drives the upper die 6 to rise and reset, and the lower lifting push rod 20 and the upper lifting push rod 22 lift the sheet metal to facilitate unloading, completing a stamping process.

[0021] By adopting this structure, multiple groups of hydraulic cylinders are used to coordinately control each mold (upper mold 6, side mold, push mold, etc.), and the stamping and forming of sheet metal parts in multiple positions and directions can be completed without changing the mold, which greatly shortens the production cycle and improves production efficiency; the sheet metal positioning block 17 can position the sheet metal, and at the same time, in conjunction with the elastic support member 19, the upper surface of the positioning block 17 will exceed the upper plane of the sheet metal part placed on the lower mold 4, so that the front and rear sides of the upper mold 6 can prevent the sheet metal part from bending and warping when cooperating with the lower mold 4 to bend the sheet metal part. At the same time, after the upper mold 6 continues to press down, it can also compress the elastic support mechanism 19, so that the sheet metal positioning block 17 moves down into the block groove 18, avoiding affecting the stamping and forming of the plate by the upper mold 6 and the lower mold 4.

[0022] Figure 1 In the process, the sheet metal product is turned over to better show the shape of the sheet metal block after bending.

[0023] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by a person skilled in the art. The provision of power is also common knowledge or conventional technology in the art, so the present invention will not explain the control method and circuit connection in detail.

[0024] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A sheet metal production stamping device, comprising a base and a frame arranged on the base, characterized in that: A workbench is provided on the base, a lower mold is provided on the workbench, a first power mechanism is provided on the frame, and an upper mold is provided at the output end of the first power mechanism corresponding to the position above the lower mold; a second power mechanism is provided on the workbench on the left side of the lower mold, a left mold is provided on the second power mechanism, a third power mechanism is provided on the right side of the upper mold, and a right mold is provided on the third power mechanism. A downward push-through groove is provided on the upper mold, and a fourth power mechanism is provided in the downward push-through groove. A downward push-through groove is provided in the output end of the fourth power mechanism, and a downward push-through groove is provided on the lower mold corresponding to the lower push-through mold, an inner push-through groove is provided in the lower mold, and a double-head power mechanism is provided in the inner push-through groove, and a front push-through mold is provided at the front output end of the double-head power mechanism, and a rear push-through mold is provided at the rear output end of the double-head power mechanism; a sheet metal positioning block is provided on the lower mold.

2. A sheet metal production stamping device according to claim 1, characterized in that: The first power mechanism, the second power mechanism, the third power mechanism, the fourth power mechanism and the double-head power mechanism all adopt hydraulic cylinders.

3. The sheet metal production stamping device according to claim 1, characterized in that: A block groove is provided on the lower die, an elastic support mechanism is provided in the block groove, and the sheet metal positioning block is provided on the elastic support mechanism.

4. The sheet metal production stamping device according to claim 1, characterized in that: A plurality of lower lifting through holes are provided on the front and rear sides of the lower die; a plurality of lower lifting push rods are provided on the workbench corresponding to the lower lifting through holes, and the push rods of the lower lifting push rods are located in the lower lifting through holes.

5. The sheet metal production stamping device according to claim 1, characterized in that: The lower die is provided with a plurality of lifting guide cylinders, and the upper die is provided with lifting guide rods corresponding to the lifting guide cylinders.

6. The sheet metal production stamping device according to claim 1, characterized in that: An upper lifting through hole is provided on the upper die, and a lifting push rod is provided on the upper die corresponding to the upper lifting through hole, and a push rod of the upper lifting push rod is located in the upper lifting through hole.

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