Sheet metal part machining mechanism and sheet metal part machining method

Abstract

The invention provides a sheet metal part machining mechanism and a sheet metal part machining method. The sheet metal part machining mechanism comprises an upper die structure and a lower die structure, and a containing position for containing a material belt is arranged between the upper die structure and the lower die structure; a first sliding structure is arranged on the upper die structure, and a first upper die slotting tool is arranged on the first sliding structure. The first upper die slotting tool is provided with a first abutting face and a first forming face, and the first forming face and the first abutting face are oppositely arranged. The lower die structure is provided with a first lower die slotting tool, and the first lower die slotting tool is provided with a second abutting face corresponding to the first abutting face. When the upper die structure and the lower die structure are closed, the first upper die slotting tool moves in the direction forming an included angle alpha with the horizontal plane, and the first abutting face extrudes the material belt in the containing position. According to the mechanism, extrusion forming can be conducted on a material belt through movement of the first upper die slotting tool during die assembly, so that small bending machining of the material belt is completed firstly, and the phenomenon that the bending intersection of a sheet metal part bulges outwards can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet metal processing equipment, and in particular to a sheet metal processing mechanism and a sheet metal processing method. Background Art

[0002] In modern manufacturing, sheet metal processing is a very important link. Sheet metal processing is widely used in automobiles, home appliances, aviation and other fields. The development of sheet metal processing technology is of great significance to improving production efficiency, reducing costs and improving product quality. In the sheet metal processing process, the bending of sheet metal parts is an important processing link. When facing the bending requirements with small folding edges, the traditional sheet metal bending process usually adopts a full circle of small folding edge bending first, and then a large bend processing. However, this method will cause the product to bulge outward at the intersection of the bends, forming an unsightly bulge, which seriously affects the appearance of the product and reduces the quality of the product. In addition, this defect may also cause problems in the subsequent assembly and use of the product, reducing the market competitiveness of the product.

[0003] Therefore, it is necessary to improve the existing bending process of sheet metal parts to overcome the defects of the prior art. Summary of the invention

[0004] In order to overcome the problems existing in the related art, one of the purposes of the present invention is to provide a sheet metal processing mechanism, which can use the movement of the first upper mold insert knife to extrude and mold the material strip when the mold is closed, so as to complete the small bending processing of the material strip first. This can avoid the outward bulging of the bending intersection of the sheet metal part, and can improve the production qualification rate of the sheet metal bending mold, thereby improving the aesthetics and functionality of the product.

[0005] A sheet metal processing mechanism, comprising: An upper mold structure and a lower mold structure capable of relative movement, wherein a placement position for placing a material strip is provided between the upper mold structure and the lower mold structure; A first sliding structure is provided on the upper die structure, a first upper die insert is provided on the first sliding structure, the first upper die insert can move in a horizontal direction on the first sliding structure, a first abutting surface and a first molding surface are provided on the first upper die insert, and the first molding surface and the first abutting surface are arranged opposite to each other; The lower die structure is provided with a first lower die insert, and the first lower die insert is provided with a second abutment surface corresponding to the first abutment surface; When the upper mold structure and the lower mold structure are closed, the first abutting surface is connected to the second abutting surface, so that the first upper mold insert moves in a direction forming an angle α with the horizontal plane, and the first abutting surface presses the material strip in the placement position.

[0006] In a preferred technical solution of the present invention, the angle between the first abutting surface and the horizontal plane is 30°-50°, and the angle α is 30°-50°.

[0007] The processing mechanism is mainly used to bend the side of the product. In actual use, the material strip is placed in the placement position for processing. When the upper mold structure and the lower mold structure are molded, the first upper mold insert moves downward. When the first abutting surface is connected to the second abutting surface, due to the interaction of the two abutting surfaces, the first upper mold insert moves in a direction oblique to the horizontal plane, which enables the first molding surface of the first upper mold insert to extrude the material strip; and due to the existence of the angle α, the first molding surface can first form a small bend on the material strip, and then form a large bend. This processing method can avoid the problem of the product's bending intersection bulging outward, improve the production qualification rate, and enhance the product's aesthetics and functionality. Moreover, the horizontal movement of the first upper mold insert and the extrusion molding at a specific angle can complete the processing of small bends at one time, reducing the processing steps and improving the processing efficiency. In addition, precise extrusion molding reduces material waste caused by improper processing and reduces production costs.

[0008] In a preferred technical solution of the present invention, the first sliding structure includes a slider seat and a first slider, the slider seat is fixed in the upper mold structure, the first slider is slidably arranged in the slider seat, and the first upper mold insert is fixed on the first slider.

[0009] This embodiment provides a specific structure of the first sliding structure. Through the design of the first slider and the slider seat, the first upper die insert can slide on the upper die structure, thereby realizing the side bending operation of the product. This design solves the appearance problem of the product bending intersection bulging outward during the traditional bending process; by optimizing the bending process, the deformation and defects of the product are reduced, thereby improving the production qualification rate. In addition, the sliding setting of the first slider enables the mold to adapt to products of different specifications and shapes, increasing the flexibility of the mold.

[0010] In a preferred technical solution of the present invention, an upper die stopper is provided on the upper die structure, the upper die stopper is provided on one side of the slider seat, a stroke reciprocating structure is provided on the upper die stopper, and the stroke reciprocating structure is fixedly connected to the first upper die insert; The stroke reciprocating structure applies a horizontal force to the first upper die insert, so that the first upper die insert can slide and reset when the external force disappears, thereby stably working in a cycle; When the upper die structure and the lower die structure are closed, a side wall of the upper die stopper is in contact with the first lower die insert.

[0011] When the upper mold structure and the lower mold structure are molded together, one side wall of the upper mold stopper is connected to the first lower mold insert to ensure the stability of the first lower mold insert. During the mold closing process, after the material strip is pressed, the first upper mold insert moves along the direction of the angle α under the action of the first lower mold insert, contacts the product material strip, and performs side bending. After the side bending is completed, the mold begins to open, and the first upper mold insert is reset under the action of the stroke reciprocating structure to prepare for the next mold closing and side bending. In this way, the side folding mechanism can work stably in a cycle, improving production efficiency and product quality.

[0012] This embodiment ensures the stability of the first upper die insert and the first lower die insert during the mold closing process by providing an upper die stopper and a stroke reciprocating structure, thereby avoiding product deformation and defects caused by insert shake. The setting of the stroke reciprocating structure enables the first upper die insert to slide under the action of an external force and reset when the external force disappears, thereby realizing the automated operation of the side folding mechanism and improving production efficiency.

[0013] In a preferred technical solution of the present invention, the upper die structure comprises an upper die seat, an upper clamping plate is arranged at the bottom of the upper die seat, an upper mold plate is arranged at the bottom of the upper clamping plate, and a pressing surface is arranged at the bottom of the upper mold plate; The lower die structure comprises a lower die base, a lower die plate is arranged on the lower die base, a material receiving surface is arranged on the lower die plate, and the placement position is arranged between the upper die plate and the lower die plate.

[0014] In a preferred technical solution of the present invention, a second upper die insert is further provided on the upper die structure, and a third abutment surface is provided on one side of the second upper die insert; The lower die structure is provided with a second lower die insert, the second lower die insert is arranged on one side of the first lower die insert, the second lower die insert is provided with a fourth abutting surface, and the fourth abutting surface corresponds to the third abutting surface; The lower mold structure is also provided with a second sliding structure, the second sliding structure includes a second slider and an oil groove insert, the oil groove insert is fixed on the lower mold structure, and the second slider is slidably arranged on the oil groove insert; The second lower die insert is also provided with a clamping surface. When the upper die structure and the lower die structure are molded together, the second upper die insert pushes the second lower die insert to slide, so that the clamping surface on the second lower die insert clamps the material strip.

[0015] During the working process, when the upper die structure and the lower die structure begin to close the mold, the second upper die blade contacts the second lower die blade. Through the interaction between the third abutting surface and the fourth abutting surface, the second upper die blade pushes the second lower die blade to slide along the oil groove insert. At this time, the pressing surface on the second lower die blade presses the material strip to ensure that the material strip remains stable during the bending process.

[0016] This embodiment ensures that the material strip can be stably compressed during the bending process through the precise cooperation of the second upper die insert and the second lower die insert, as well as the setting of the clamping surface. This ensures the stability and accuracy of the side folding process and improves the bending quality of the product.

[0017] In a preferred technical solution of the present invention, a molding insert is further provided on the lower mold structure, and the molding insert is provided with a second molding surface on a side of the lower mold structure away from the first lower mold insert, and the second lower mold insert is provided on one side of the second molding surface.

[0018] In a preferred technical solution of the present invention, a third upper die insert is further provided on the upper die structure; The lower die structure is also provided with a third lower die insert knife and a fixing seat, wherein the fixing seat is arranged on one side of the third lower die insert knife, and an insert knife groove is formed between the fixing seat and the third lower die insert knife, and the insert knife groove corresponds to the third upper die insert knife.

[0019] During the working process, the third upper die insert and the third lower die insert move relative to each other in the insert groove formed by the fixed seat to complete the compaction and positioning of the product. When the mold is closed, the molding insert and the first molding surface on the first upper die insert work together to perform side folding processing on the product.

[0020] In a preferred technical solution of the present invention, a slide groove insert is provided on the lower die structure, the third lower die insert is slidably provided on the slide groove insert, and the molding insert is provided on the third lower die insert.

[0021] The design of the slide insert enables the molding insert to move with the third lower die insert, so that the second molding surface on the molding insert can perform side folding processing on the material strip.

[0022] A second object of the present invention is to provide a processing method for a sheet metal part, wherein a first bend and a second bend are provided on opposite sides of the sheet metal part, wherein the second bend is located at the end of the first bend, and the method is implemented based on the sheet metal part processing mechanism as described above; The processing method comprises the following steps: In the mold opening state, place the material strip on the placement position; The upper mold structure and the lower mold structure gradually close the mold and press the material strip; After the material strip is pressed, when the upper mold structure and the lower mold structure are closed, the first upper mold insert knife moves in a direction forming an angle α with the horizontal plane under the action of the first lower mold insert knife, so that the first molding surface squeezes the material strip; When the first abutting surface squeezes the material strip, a second bend is first formed on the material strip, and then the first bend is formed.

[0023] In actual applications, this method is used to perform side bending processing on products, and the first bend is a large bend and the second bend is a small bend. By forming the second bend first and then the first bend, the appearance problem of the product bulging outward at the intersection of the bends in the traditional processing method is effectively solved. Moreover, the processing method is applicable to various types of sheet metal processing, especially in the processing of sheet metal parts that require complex bending structures.

[0024] The beneficial effects of the present invention are: The present invention provides a sheet metal processing mechanism, which includes an upper die structure and a lower die structure, wherein a placement position for placing a material strip is arranged between the upper die structure and the lower die structure; a first sliding structure is arranged on the upper die structure, and a first upper die insert is arranged on the first sliding structure, and the first upper die insert can move in a horizontal direction on the first sliding structure, and a first abutting surface and a first forming surface are arranged on the first upper die insert, and the first forming surface and the first abutting surface are arranged oppositely; a first lower die insert is arranged on the lower die structure, and a second abutting surface corresponding to the first abutting surface is arranged on the first lower die insert; when the upper die structure and the lower die structure are molded together, the first abutting surface is connected to the second abutting surface, so that the first upper die insert moves in a direction forming an angle α with the horizontal plane, and the first abutting surface squeezes the material strip in the placement position. In actual use, the material strip is placed in the placement position for processing. When the upper mold structure and the lower mold structure are molded together, the first upper mold insert moves downward, and when the first abutting surface contacts the second abutting surface, due to the interaction of the two abutting surfaces, the first upper mold insert moves in a direction oblique to the horizontal plane, which enables the first molding surface of the first upper mold insert to extrude the material strip; and due to the existence of the angle α, the first molding surface can first form a small bend on the material strip, and then form a large bend. This processing method can avoid the problem of the product's bend intersection bulging outward, improve the production qualification rate, and enhance the product's aesthetics and functionality.

[0025] The present application also provides a sheet metal processing method implemented based on the above-mentioned sheet metal processing mechanism. The method has a high degree of automation and can avoid the problem of bulging outward at the bending intersection of the product, thereby improving the aesthetics and functionality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of a sheet metal processing mechanism provided in an embodiment of the present invention including a sheet metal mold opening; Figure 2 is a schematic diagram of a sheet metal processing mechanism provided in an embodiment of the present invention without a sheet metal mold opening; Figure 3 is a schematic diagram of a sheet metal processing mechanism provided in an embodiment of the present invention including a sheet metal mold clamping mechanism; Figure 4is a schematic diagram of the cooperation between the second upper die inserting knife and the second lower die inserting knife provided in an embodiment of the present invention; Figure 5 is a schematic structural diagram of a sheet metal part provided in an embodiment of the present invention when it is not bent; Figure 6 is a schematic diagram of the structure of the sheet metal part provided in an embodiment of the present invention after it is not bent; Figure 7 It is a flow chart of a sheet metal processing method provided in an embodiment of the present invention.

[0027] Reference numerals: 1. Upper die structure; 11. Upper die seat; 12. Upper clamping plate; 13. Upper template; 131. Pressing surface; 14. Upper die stopper; 2. Lower die structure; 21. Lower die seat; 22. Lower template; 221. Receiving surface; 3. First upper die insert; 31. First abutting surface; 32. First forming surface; 4. First lower die insert; 41. Second abutting surface; 5. Second upper die insert; 51. Third abutting surface; 6. Second lower die insert; 61. Second slider; 62. Oil groove insert; 63. Fourth abutting surface; 7. Third upper die insert; 8. Third lower die insert; 81. Forming insert; 82. Slide insert; 83. Insert groove; 9. Fixed seat; 10. Stroke reciprocating structure; 20. Sheet metal part; 201. First bend; 202. Second bend. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0029] In modern manufacturing, sheet metal processing is a very important link. Sheet metal processing is widely used in automobiles, home appliances, aviation and other fields. The development of sheet metal processing technology is of great significance to improving production efficiency, reducing costs and improving product quality. In the sheet metal processing process, the bending of sheet metal parts is an important processing link. When facing the bending requirements with small folding edges, the traditional sheet metal bending process usually adopts a full circle of small folding edge bending first, and then a large bend processing. However, this method will cause the product to bulge outward at the intersection of the bends, forming an unsightly bulge, which seriously affects the appearance of the product and reduces the quality of the product. In addition, this defect may also cause problems in the subsequent assembly and use of the product, reducing the market competitiveness of the product.

[0030] Based on this, the present application provides a sheet metal processing mechanism.

[0031] Example 1 like Figure 1-Figure 6 As shown, this embodiment provides a sheet metal processing mechanism, comprising: The upper mold structure 1 and the lower mold structure 2 are capable of relative movement, and a placement position for placing the material strip is set between the upper mold structure 1 and the lower mold structure 2; the upper mold structure 1 and the lower mold structure 2 together constitute a processing mechanism. It should be noted that the relative movement of the upper mold structure 1 and the lower mold structure 2 is achieved by a machine tool. For example, the opening and closing of the mold can be driven by the hydraulic system of the machine tool. During the mold closing process, the hydraulic cylinder or hydraulic motor provides power to push the upper mold downward until it contacts and closes with the lower mold.

[0032] A first sliding structure is arranged on the upper mold structure 1, and a first upper mold knife 3 is arranged on the first sliding structure. The first upper mold knife 3 can move in a horizontal direction on the first sliding structure, and a first abutting surface 31 and a first molding surface 32 are arranged on the first upper mold knife 3. The first molding surface 32 is arranged opposite to the first abutting surface 31; the structure of the first molding surface 32 can be adjusted as needed.

[0033] The lower die structure 2 is provided with a first lower die insert 4, and the first lower die insert 4 is provided with a second abutting surface 41 corresponding to the first abutting surface 31; When the upper mold structure 1 and the lower mold structure 2 are closed, the first abutting surface 31 is connected to the second abutting surface 41, so that the first upper mold insert 3 moves in a direction forming an angle α with the horizontal plane, and the first abutting surface 31 squeezes the material strip in the placement position.

[0034] Specifically, the angle between the first abutting surface 31 and the horizontal plane is 30°-50°, and correspondingly, the angle α is 30°-50°. In a more preferred embodiment, α is 45°. That is, after the first abutting surface 31 abuts the second abutting surface 41, when the first upper die insert 3 moves downward, it moves in a direction obliquely 45° downward.

[0035] The processing mechanism is mainly used for bending the side of the product. In actual use, the material strip is placed in the placement position for processing. When the upper mold structure 1 and the lower mold structure 2 are molded, the first upper mold insert 3 moves downward. When the first abutting surface 31 is connected to the second abutting surface 41, due to the interaction of the two abutting surfaces, the first upper mold insert 3 moves in a direction oblique to the horizontal plane, which enables the first molding surface 32 of the first upper mold insert 3 to extrude the material strip; and due to the existence of the angle α, the first molding surface 32 can first form a small bend on the material strip, and then form a large bend. This processing method can avoid the problem of the product's bending intersection bulging outward, improve the production qualification rate, and enhance the product's aesthetics and functionality. Moreover, the horizontal movement of the first upper mold insert 3 and the extrusion molding at a specific angle can complete the processing of small bends at one time, reducing the processing steps and improving the processing efficiency. In addition, precise extrusion molding reduces material waste caused by improper processing and reduces production costs.

[0036] Example 2 This embodiment is improved on the basis of embodiment 1.

[0037] like Figure 1-Figure 6 As shown, in this embodiment, a detailed composition of a first sliding structure is provided. Specifically, the first sliding structure includes a slider seat and a first slider, the slider seat is fixed in the upper mold structure 1, the first slider is slidably arranged in the slider seat, and the first upper mold insert 3 is fixed on the first slider.

[0038] This embodiment provides a specific structure of the first sliding structure. Through the design of the first slider and the slider seat, the first upper die insert 3 can slide on the upper die structure 1, thereby achieving side bending operation on the product.

[0039] Since the first slider can slide on the sliding seat, the first upper die insert 3 can slide. The sliding of the first upper die insert 3 cooperates with the design of the first abutment surface 31 and the second abutment surface 41 to limit the travel path of the first upper die insert 3 during the mold closing process, solving the problem of the appearance of the bulging outward at the bending intersection of this product; by optimizing the bending process, the deformation and defects of the product are reduced, thereby improving the production qualification rate. In addition, the sliding setting of the first slider enables the mold to adapt to products of different specifications and shapes, increasing the flexibility of the mold.

[0040] Example 3 This embodiment is improved on the basis of embodiment 1.

[0041] like Figure 1-Figure 6As shown, in this embodiment, an upper die stopper 14 is provided on the upper die structure 1, and the upper die stopper 14 is provided on one side of the slider seat. A stroke reciprocating structure 10 is provided on the upper die stopper, and the stroke reciprocating structure 10 is fixedly connected to the first upper die insert 3; The stroke reciprocating structure 10 applies a horizontal force to the first upper die insert 3, so that the first upper die insert 3 can slide and reset when the external force disappears, thereby stably working in a cycle; When the upper mold structure 1 and the lower mold structure 2 are molded together, a side wall of the upper mold stopper 14 is connected to the first lower mold insert blade 4. The upper mold stopper 14 is used to ensure the stability of the first lower mold insert blade 4.

[0042] When the upper mold structure 1 and the lower mold structure 2 are molded together, a side wall of the upper mold stopper 14 is connected to the first lower mold insert 4 to ensure the stability of the first lower mold insert 4. During the mold closing process, after the material strip is pressed, the first upper mold insert 3 moves along the direction of the angle α under the action of the first lower mold insert 4, contacts the product material strip, and performs side bending. After the side bending is completed, the mold begins to open, and the first upper mold insert 3 is reset under the action of the stroke reciprocating structure 10 to prepare for the next mold closing and side bending. In this way, the side folding mechanism can work stably in a cycle to improve production efficiency and product quality.

[0043] This embodiment ensures the stability of the first upper die insert 3 and the first lower die insert 4 during the mold closing process by providing an upper die stopper and a stroke reciprocating structure 10, thereby avoiding product deformation and defects caused by inserting knife shaking. The provision of the stroke reciprocating structure 10 enables the first upper die insert 3 to slide under the action of an external force and reset when the external force disappears, thereby realizing the automated operation of the side folding mechanism and improving production efficiency.

[0044] In actual applications, the stroke reciprocating structure 10 may include a shell and a telescopic spring, which are used to provide a restoring force after the stroke is completed to reset the first upper die insert 3. The shell is installed on the upper die stopper, the telescopic spring is arranged in the shell, and one end of the telescopic spring is fixedly connected to the first upper die insert 3.

[0045] In yet other embodiments, the stroke reciprocating structure 10 may also be implemented by a hydraulic system such as a hydraulic cylinder, which may provide precise reciprocating motion control.

[0046] Example 4 This embodiment is improved on the basis of embodiment 1.

[0047] like Figure 1-Figure 6As shown, in this embodiment, the upper mold structure 1 includes an upper mold base 11, an upper clamping plate 12 is provided at the bottom of the upper mold base 11, an upper mold plate 13 is provided at the bottom of the upper clamping plate 12, and a pressing surface 131 is provided at the bottom of the upper mold plate 13; The lower mold structure 2 includes a lower mold base 21 , a lower mold plate 22 is disposed on the lower mold base 21 , a material receiving surface 221 is disposed on the lower mold plate 22 , and the placement position is disposed between the upper mold plate 13 and the lower mold plate 22 .

[0048] In actual applications, the pressing surface 131 and the receiving surface 221 are used to compress the material strip. The upper die base 11 serves as the supporting base of the entire upper die structure 1 to ensure the stability and strength of the upper die structure 1; the upper clamping plate 12 is installed at the bottom of the upper die base 11 to fix and support the upper template 13 and transfer the pressure when the mold is closed; the upper template 13 is located below the upper clamping plate 12 and directly contacts the material strip, and compresses the material strip through the pressing surface 131 to ensure that the material strip remains stable during the bending process. Similarly, the lower die base 21 serves as the supporting base of the entire lower die structure 2 to ensure the stability and strength of the lower die structure 2. The lower template 22 is installed on the lower die base 21 to receive and support the material strip. The receiving surface 221 is used to cooperate with the pressing surface 131 of the upper template 13 to jointly compress the material strip.

[0049] During the operation of the mechanism, when the upper die structure 1 and the lower die structure 2 begin to close the mold, the second upper die blade 5 and the second lower die blade 6 first contact. Through the interaction between the third abutting surface 51 and the fourth abutting surface 63, the second upper die blade 5 pushes the second lower die blade 6 to slide along the oil groove insert 62. At this time, the pressing surface on the second lower die blade 6 will press the material strip to ensure that the material strip remains stable during the bending process. Subsequently, the first upper die blade 3 moves along the preset direction, contacts and folds the small fold edge on the material strip.

[0050] Example 5 This embodiment is improved on the basis of embodiment 1.

[0051] like Figure 1-Figure 6 As shown, in this embodiment, a second upper die insert 5 is further provided on the upper die structure 1, and a third abutting surface 51 is provided on one side of the second upper die insert 5; The lower die structure 2 is provided with a second lower die insert 6, which is arranged on one side of the first lower die insert 4, and the second lower die insert 6 is provided with a fourth abutting surface 63, which corresponds to the third abutting surface 51; The lower mold structure 2 is also provided with a second sliding structure, the second sliding structure includes a second sliding block 61 and an oil groove insert 62, the oil groove insert 62 is fixed on the lower mold structure 2, and the second sliding block 61 is slidably provided on the oil groove insert 62; The second lower die blade 6 is also provided with a clamping surface. When the upper die structure 1 and the lower die structure 2 are closed, the second upper die blade 5 pushes the second lower die blade 6 to slide, so that the clamping surface on the second lower die blade 6 clamps the material strip.

[0052] During operation, when the upper die structure 1 and the lower die structure 2 begin to close the mold, the second upper die blade 5 contacts the second lower die blade 6. Through the interaction between the third abutting surface 51 and the fourth abutting surface 63, the second upper die blade 5 pushes the second lower die blade 6 to slide along the oil groove insert 62. At this time, the pressing surface on the second lower die blade 6 presses the material strip to ensure that the material strip remains stable during the bending process.

[0053] This embodiment ensures that the material strip can be stably pressed during the bending process through the precise matching of the second upper die insert 5 and the second lower die insert 6, as well as the setting of the pressing surface, which ensures the stability and accuracy of the side folding process and improves the bending quality of the product. After the material is pressed, the other upper die inserts and lower die inserts interact with each other to generate horizontal forces, and the product is side folded through different forming surfaces. When the side folding process is completed, the mold enters a closed mold state, at which time the upper mold and the lower mold are in full contact, and the product strip is completely bent and formed.

[0054] Example 6 This embodiment is improved on the basis of embodiment 1.

[0055] like Figure 1-Figure 6 As shown, in this embodiment, a molding insert 81 is further provided on the lower mold structure 2, and the molding insert 81 is provided on a side of the lower mold structure 2 away from the first lower mold insert 4, and a second molding surface is provided on the molding insert 81, and the second lower mold insert 6 is provided on one side of the second molding surface.

[0056] In this embodiment, the upper die structure 1 is further provided with a third upper die insert 7; The lower die structure 2 is also provided with a third lower die insert knife 8 and a fixing seat 9. The fixing seat 9 is arranged on one side of the third lower die insert knife 8. An insert knife groove 83 is formed between the fixing seat 9 and the third lower die insert knife 8. The insert knife groove 83 corresponds to the third upper die insert knife 7.

[0057] During the working process, the third upper die insert 7 and the third lower die insert 8 move relative to each other in the insert groove 83 formed by the fixed seat 9 to complete the compaction and positioning of the product. When the mold is closed, the molding insert 81 cooperates with the first molding surface 32 on the first upper die insert 3 to perform side folding processing on the product. When the third upper die insert 7 contacts the third lower die insert 8, if there is no fixed seat 9, the third upper die insert 7 is easy to break and cannot be pushed into place. The fixed seat 9 can offset the lateral force of the third upper die insert 7, convert the lateral force of the third upper die insert 7 into a longitudinal force, and can also increase the strength of the third upper die insert 7, making the third upper die insert 7 more durable.

[0058] For example, the product has two opposite sides, and the first molding surface 32 on the first upper die insert 3 bends and molds the left side of the product, while the molding insert 81 works together with the second lower die insert 6 to bend and mold the right side of the product.

[0059] In this embodiment, a slide slot insert 82 is provided on the lower die structure 2, the third lower die insert 8 is slidably provided on the slide slot insert 82, and the molding insert 81 is provided on the third lower die insert 8. The third lower die insert 8 can slide on the lower die structure 2, and more specifically, a stroke reciprocating structure 10 is provided on the fixed seat 9 for realizing the movement and resetting of the third lower die insert 8.

[0060] The design of the slide slot insert 82 enables the molding insert 81 to move along with the third lower die insert 8, so that the second molding surface on the molding insert 81 can perform side folding processing on the material strip.

[0061] Example 7 This embodiment is improved on the basis of embodiment 1.

[0062] like Figure 1-Figure 7 As shown, in this embodiment, a sheet metal processing method is provided, wherein a first bend 201 and a second bend 202 are provided on opposite sides of the sheet metal 20, wherein the second bend 202 is located at the end of the first bend 201, and the method is implemented based on the sheet metal processing mechanism as described above; The processing method comprises the following steps: S100, in the mold opening state, the material strip is placed on the placement position; this step is the preparatory work before processing to ensure that the material strip is placed correctly for subsequent processing.

[0063] S200, the upper mold structure 1 and the lower mold structure 2 are gradually closed and the material strip is pressed; specifically, through the closing action of the upper mold structure 1 and the lower mold structure 2, the material strip is pressed, providing a stable foundation for subsequent bending operations.

[0064] S300, after the material strip is pressed, when the upper mold structure 1 and the lower mold structure 2 are closed, the first upper mold insert 3 moves in a direction forming an angle α with the horizontal plane under the action of the first lower mold insert 4, so that the first molding surface 32 squeezes the material strip; through the interaction between the first upper mold insert 3 and the first lower mold insert 4, and the squeezing of the first abutting surface 31, the material strip begins to bend. In actual applications, the material strip can also be squeezed synchronously by the first molding surface 32 on the molding insert 81 to achieve bending processing on different sides of the product.

[0065] S400, when the first abutting surface 31 squeezes the material strip, a second bend is first formed on the material strip, and then a first bend is formed. In this step, a specific bending sequence is used, that is, the second bend (small bend) is first formed, and then the first bend (large bend) is formed, which effectively solves the appearance problem of the product bulging outward at the intersection of the bends in the traditional processing method.

[0066] In actual applications, this method is used to perform side bending processing on products, and the first bend is a large bend and the second bend is a small bend. By forming the second bend first and then the first bend, the appearance problem of the product bulging outward at the intersection of the bends in the traditional processing method is effectively solved. Moreover, the processing method is applicable to various types of sheet metal processing, especially in the processing of sheet metal parts that require complex bending structures.

[0067] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sheet metal processing mechanism, characterized in that: include: An upper mold structure (1) and a lower mold structure (2) capable of relative movement, wherein a placement position for placing a material strip is provided between the upper mold structure (1) and the lower mold structure (2); A first sliding structure is arranged on the upper die structure (1), a first upper die insert (3) is arranged on the first sliding structure, the first upper die insert (3) can move in a horizontal direction on the first sliding structure, a first abutting surface (31) and a first molding surface (32) are arranged on the first upper die insert (3), and the first molding surface (32) and the first abutting surface (31) are arranged opposite to each other; The lower die structure (2) is provided with a first lower die insert (4), and the first lower die insert (4) is provided with a second abutment surface (41) corresponding to the first abutment surface (31); When the upper mold structure (1) and the lower mold structure (2) are closed, the first abutting surface (31) is in contact with the second abutting surface (41), so that the first upper mold insert (3) moves in a direction forming an angle α with the horizontal plane, and the first abutting surface (31) presses the material strip in the placement position.

2. The sheet metal processing mechanism according to claim 1, characterized in that: The included angle between the first abutting surface (31) and the horizontal plane is 30°-50°, and the angle α is 30°-50°.

3. The sheet metal processing mechanism according to claim 1, characterized in that: The first sliding structure comprises a slider seat and a first slider, the slider seat is fixed in the upper die structure (1), the first slider is slidably arranged in the slider seat, and the first upper die insert (3) is fixed on the first slider.

4. The sheet metal processing mechanism according to claim 3, characterized in that: An upper die stopper (14) is provided on the upper die structure (1), the upper die stopper (14) is arranged on one side of the slider seat, a stroke reciprocating structure (10) is provided on the upper die stopper (14), and the stroke reciprocating structure (10) is fixedly connected to the first upper die insert (3); The stroke reciprocating structure (10) applies a horizontal force to the first upper die insert (3); When the upper die structure (1) and the lower die structure (2) are closed, a side wall of the upper die stopper (14) is in contact with the first lower die insert (4).

5. The sheet metal processing mechanism according to any one of claims 1 to 4, characterized in that: The upper die structure (1) comprises an upper die seat (11), an upper clamping plate (12) is arranged at the bottom of the upper die seat (11), an upper mold plate (13) is arranged at the bottom of the upper clamping plate (12), and a pressing surface (131) is arranged at the bottom of the upper mold plate (13); The lower die structure (2) comprises a lower die base (21), a lower die plate (22) is arranged on the lower die base (21), a material receiving surface (221) is arranged on the lower die plate (22), and the placement position is arranged between the upper die plate (13) and the lower die plate (22).

6. The sheet metal processing mechanism according to any one of claims 1 to 4, characterized in that: The upper die structure (1) is also provided with a second upper die insert (5), and a third abutting surface (51) is provided on one side of the second upper die insert (5); The lower die structure (2) is provided with a second lower die insert (6), the second lower die insert (6) is arranged on one side of the first lower die insert (4), the second lower die insert (6) is provided with a fourth abutting surface (63), the fourth abutting surface (63) corresponds to the third abutting surface (51); The lower mold structure (2) is also provided with a second sliding structure, the second sliding structure comprising a second sliding block (61) and an oil groove insert (62), the oil groove insert (62) being fixed on the lower mold structure (2), and the second sliding block (61) being slidably arranged on the oil groove insert (62); The second lower die insert (6) is also provided with a clamping surface. When the upper die structure (1) and the lower die structure (2) are closed, the second upper die insert (5) pushes the second lower die insert (6) to slide, so that the clamping surface on the second lower die insert (6) clamps the material strip.

7. The sheet metal processing mechanism according to claim 6, characterized in that: The lower die structure (2) is also provided with a molding insert (81), the molding insert (81) being located on a side of the lower die structure (2) away from the first lower die insert (4), the molding insert (81) being provided with a second molding surface, and the second lower die insert (6) being provided on one side of the second molding surface.

8. The sheet metal processing mechanism according to claim 7, characterized in that: The upper die structure (1) is also provided with a third upper die inserting knife (7); A third lower die insert knife (8) and a fixing seat (9) are also provided on the lower die structure (2); the fixing seat (9) is provided on one side of the third lower die insert knife (8); an insert knife groove (83) is formed between the fixing seat (9) and the third lower die insert knife (8); the insert knife groove (83) corresponds to the third upper die insert knife (7).

9. The sheet metal processing mechanism according to claim 8, characterized in that: The lower die structure (2) is provided with a slide groove insert (82), the third lower die insert (8) is slidably arranged on the slide groove insert (82), and the molding insert (81) is arranged on the third lower die insert (8).

10. A method for processing a sheet metal part, wherein a first bend (201) and a second bend (202) are arranged on two opposite sides of the sheet metal part, wherein the second bend is located at the end of the first bend, characterized in that: Implemented based on the sheet metal processing mechanism as described in any one of claims 1 to 9; The processing method comprises the following steps: In the mold opening state, place the material strip on the placement position; The upper mold structure (1) and the lower mold structure (2) gradually close the mold and press the material strip; After the material strip is pressed, when the upper die structure (1) and the lower die structure (2) are closed, the first upper die insert (3) moves in a direction forming an angle α with the horizontal plane under the action of the first lower die insert (4), so that the first molding surface (32) extrude the material strip; When the first abutting surface (31) squeezes the material strip, a second bend is first formed on the material strip, and then the first bend is formed.

Images