A cold stamping die for wrinkle-proof aluminum plate diesel engine protection cover

Abstract

The present invention discloses a cold stamping forming die for a wrinkle-proof aluminum plate diesel engine protective cover, comprising a base, a column located on the base, a top plate located on the column, an upper mold located on the column, a stamping part located on the top plate and used to drive the upper mold to move up and down, and a No. 1 lower mold located at the upper end of the base and matched with the upper mold, and also comprising a cavity opened inside the No. 1 lower mold, an anti-wrinkle mechanism located in the cavity and used for double wrinkle resistance of the aluminum plate, and a clamping mechanism located in the cavity and used to replace the anti-wrinkle mechanism. The cold stamping forming die for a wrinkle-proof aluminum plate diesel engine protective cover described in the present invention can complete the double wrinkle resistance of the aluminum plate, can be used to produce deeply bent diesel engine protective covers, and can complete the automatic replacement of the anti-wrinkle mechanism during the clamping process, so as to avoid the anti-wrinkle mechanism from interfering with the mold during the clamping process, thereby causing cracking of the stamped product, and ensure the quality of the molded parts.

Description

Technical Field

[0001] The invention relates to the technical field of cold stamping dies, in particular to a cold stamping forming die for a wrinkle-proof aluminum plate diesel engine protection cover. Background Art

[0002] Cold stamping dies are special tools that apply deformation force to the sheet metal placed in the die at room temperature to obtain product parts of certain shape, size and performance. Due to the many characteristics and advantages of using cold stamping dies to make formed products, they are widely used in different products in various industries, such as modern diesel engine protection covers stamped from aluminum plates. However, the existing cold stamping dies often have the following problems in the cold stamping process of aluminum plates: 1. Since the aluminum diesel engine protection cover is very easy to wrinkle during the stamping process, an anti-wrinkle mechanism is often set in the stamping die, but the anti-wrinkle mechanism in the existing cold stamping die is inconvenient to remove during the mold closing process and is very likely to interfere with the mold, thereby causing the stamping parts to crack during the mold closing process and affecting the quality of the stamping parts; 2. For diesel engine protection covers with large curvatures, deep stretching is required when stamping the aluminum plate, so wrinkles are very easy to occur during the stretching process, and the wrinkling phenomenon is often aggravated due to the inability to press the material during the stretching process, but the existing anti-wrinkle mechanism has a single anti-wrinkle function and cannot achieve a good anti-wrinkle effect for stamping products. Summary of the invention

[0003] The main purpose of the present invention is to provide a cold stamping forming die for a wrinkle-proof aluminum plate diesel engine protective cover, which can effectively solve the problems in the background technology.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A cold stamping forming die for a wrinkle-proof aluminum plate diesel engine protection cover, comprising a base, a column located on the base, a top plate located on the column, an upper die located on the column, a stamping part located on the top plate and used to drive the upper die to move up and down, a No. 1 lower die located at the upper end of the base and matched with the upper die, and also comprising a cavity opened inside the No. 1 lower die, an anti-wrinkle mechanism located in the cavity and used for double wrinkle resistance of the aluminum plate, and a clamping mechanism located in the cavity and used to replace the anti-wrinkle mechanism;

[0006] Wherein, the upper mold is also provided with a control panel electrically connected to the stamping part and the mold clamping mechanism.

[0007] As a further optimization scheme of the present invention, the anti-wrinkle mechanism includes a vertical pole located in the cavity, an anti-wrinkle member located on the vertical pole and used to prevent wrinkles at the concave stretching portion of the aluminum plate, a horizontal plate located on the outer surface of the vertical pole, a telescopic guide column located at the lower end of the horizontal plate, and a No. 1 spring sleeved on the outer surface of the telescopic guide column;

[0008] Wherein, the lower end of the telescopic guide column is fixedly connected to the lower end of the cavity.

[0009] As a further optimization scheme of the present invention, the anti-wrinkle part includes a ring mounted on the outer surface of the vertical pole, two connecting rods located on the ring, two mounting seats located at the upper ends of the connecting rods and connected to the connecting rods through a rotating shaft, two sheet material buffer pads located at the upper ends of the mounting seats, an arc block located between the sheet material buffer pads, and a No. 2 spring located at the lower end of the arc block and connected to the vertical pole.

[0010] As a further optimization solution of the present invention, a wedge block No. 1 is provided on one side of the arc block, and a light emitter is provided on one side of the wedge block No. 1.

[0011] As a further optimization scheme of the present invention, the clamping mechanism includes a cylinder connected to the inner wall of the cavity, a push rod located at the output end of the cylinder, a U-shaped frame located on the side of the push rod facing away from the cylinder, two sliding seats located at the opening of the U-shaped frame, a No. 2 lower mold located between the sliding seats, and two vertical plates slidably connected to the sliding seats and having sliding grooves.

[0012] As a further optimization solution of the present invention, the lower end of the vertical plate is fixedly connected to the lower end of the cavity, and the No. 2 lower mold is matched with the upper mold.

[0013] As a further optimization solution of the present invention, a second wedge block is provided on one side of the second lower mold close to the anti-wrinkle member, and a light receiver matching the light transmitter is provided on the second wedge block;

[0014] Wherein, the second wedge block and the first wedge block move in a wedge shape, and the light receiver is electrically connected to the control panel.

[0015] As a further optimization solution of the present invention, the control panel is provided with an alarm electrically connected to the control panel, and the control panel is also provided with two switch keys electrically connected to the stamping part and the cylinder respectively.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, by setting the anti-wrinkle mechanism, the anti-wrinkle part in the No. 1 lower mold is in contact with the aluminum plate in advance, so that the stamping part and the arc block are pressed and positioned together, avoiding wrinkles due to the inability to press the stamping part during the pressing process, and the sheet material buffer pads at both ends of the arc block can deform with the deformation of the stamping part, avoiding the stamping part from being stretched too deep, resulting in the sheet material flowing too fast during the material feeding process to form wrinkles, completing the double anti-wrinkle operation of the aluminum plate, and can be used to produce deeply curved diesel engine protective covers.

[0018] 2. In the present invention, through the coordinated use of the anti-wrinkle mechanism and the mold closing mechanism, the No. 2 lower mold on the sliding seat moves toward the side close to the anti-wrinkle mechanism, and the No. 2 wedge block and the No. 1 wedge block move in a wedge shape along the inclined surface, thereby driving the No. 2 lower mold at one end of the No. 2 wedge block to be placed below the deep stretching area of ​​the aluminum plate. The anti-wrinkle mechanism is automatically replaced during the mold closing process, avoiding the anti-wrinkle mechanism from interfering with the mold during the mold closing process, thereby causing cracking of the stamped product, and ensuring the quality of the molded parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a partial cross-sectional structural diagram of a cold stamping forming die of a wrinkle-proof aluminum plate diesel engine protection cover of the present invention;

[0020] Figure 2 It is a structural schematic diagram of an anti-wrinkle mechanism of a cold stamping forming die for an anti-wrinkle aluminum plate diesel engine protection cover of the present invention;

[0021] Figure 3 It is a structural schematic diagram of an anti-wrinkle component of a cold stamping forming die for an anti-wrinkle aluminum plate diesel engine protection cover of the present invention;

[0022] Figure 4 The invention discloses a cold stamping die for a wrinkle-proof aluminum plate diesel engine protection cover. Figure 2 A in the enlarged view;

[0023] Figure 5 It is a front structural schematic diagram of a clamping mechanism of a cold stamping forming die for a wrinkle-proof aluminum plate diesel engine protection cover of the present invention;

[0024] Figure 6 This is a structural schematic diagram of another angle of the mold clamping mechanism of the cold stamping forming mold of the anti-wrinkle aluminum plate diesel engine protection cover of the present invention.

[0025] In the figure: 1. base; 2. column; 3. anti-wrinkle mechanism; 4. No. 1 lower mold; 5. clamping mechanism; 6. cavity; 7. aluminum plate; 8. top plate; 9. upper mold; 10. stamping part; 11. control panel; 12. switch; 13. alarm; 31. anti-wrinkle part; 32. column; 33. cross plate; 34. No. 1 spring; 35. telescopic guide column; 36. light transmitter; 37. No. 1 wedge block; 311. arc block; 312. sheet material buffer pad; 313. No. 2 spring; 314. connecting rod; 315. collar; 316. mounting seat; 51. column; 52. U-shaped frame; 53. sliding seat; 54. No. 2 lower mold; 55. cylinder; 56. push rod; 57. slide groove; 58. No. 2 wedge block; 59. light receiver. DETAILED DESCRIPTION

[0026] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0027] Example 1

[0028] like Figure 1 As shown, a cold stamping forming die for a wrinkle-proof aluminum plate diesel engine protection cover comprises a base 1, a column 2 located on the base 1, a top plate 8 located on the column 2, an upper die 9 located on the column 2, a stamping part 10 located on the top plate 8 and used to drive the upper die 9 to move up and down, a No. 1 lower die 4 located at the upper end of the base 1 and matched with the upper die 9, and also comprises a cavity 6 opened inside the No. 1 lower die 4, an anti-wrinkle mechanism 3 located in the cavity 6 and used for double wrinkle resistance of the aluminum plate 7, and a clamping mechanism 5 located in the cavity 6 and used to replace the anti-wrinkle mechanism 3;

[0029] The upper die 9 is also provided with a control panel 11 which is electrically connected to the stamping part 10 and the die clamping mechanism 5 .

[0030] like Figure 2 , Figure 3 and Figure 4 As shown, the anti-wrinkle mechanism 3 includes a vertical rod 32 located in the cavity 6, an anti-wrinkle member 31 located on the vertical rod 32 and used to prevent wrinkles at the concave stretching part of the aluminum plate 7, a horizontal plate 33 located on the outer surface of the vertical rod 32, a telescopic guide column 35 located at the lower end of the horizontal plate 33, and a No. 1 spring 34 sleeved on the outer surface of the telescopic guide column 35; wherein the lower end of the telescopic guide column 35 is fixedly connected to the lower end of the cavity 6; the anti-wrinkle member 31 includes a ring 315 sleeved on the outer surface of the vertical rod 32, two connecting rods 314 located on the ring 315, two mounting seats 316 located at the upper end of the connecting rod 314 and connected to the connecting rod 314 through a rotating shaft, two sheet material buffer pads 312 located at the upper end of the mounting seat 316, an arc block 311 located between the sheet material buffer pads 312, and a spring 34 located below the arc block 311. The second spring 313 is connected to the end and connected to the vertical rod 32; a No. 1 wedge block 37 is provided on one side of the arc block 311, and a light emitter 36 is provided on one side of the No. 1 wedge block 37. The stamping part 10 is composed of a hydraulic cylinder and a push column. During the stamping process of the stamping part 10, the anti-wrinkle mechanism 3 in the No. 1 lower mold 4 first contacts the aluminum plate 7, so that the stamping part 10 and the arc block 311 are pressed and positioned together to avoid the failure to press the stamping part 10 during the pressing process, thereby avoiding the occurrence of wrinkles. In addition, the sheet material buffer pads 312 at both ends of the arc block 311 can be deformed as the stamping part 10 is deformed, and the sheet material buffer pads 312 are placed in the deep stretching area of ​​the stamping part 10 to avoid the stamping part 10 from being stretched too deep, resulting in too fast sheet material flow during the material feeding process and wrinkling.

[0031] like Figure 5 and Figure 6 As shown, the clamping mechanism 5 includes a cylinder 55 connected to the inner wall of the cavity 6, a push rod 56 located at the output end of the cylinder 55, a U-shaped frame 52 located on the side of the push rod 56 facing away from the cylinder 55, two sliding seats 53 located at the opening of the U-shaped frame 52, a No. 2 lower mold 54 located between the sliding seats 53, and two vertical plates 51 slidably connected to the sliding seats 53 and provided with sliding grooves 57; the lower end of the vertical plate 51 is fixedly connected to the lower end of the cavity 6, and the No. 2 lower mold 54 matches the upper mold 9; a No. 2 wedge block 58 is provided on the side of the No. 2 lower mold 54 close to the anti-wrinkle part 31, and a light receiver 59 matching the light transmitter 36 is provided on the No. 2 wedge block 58; wherein, the No. 2 wedge block 58 and the No. 1 wedge block 37 move in a wedge shape, and the light receiver 59 is electrically connected to the control panel 11; the control panel An alarm 13 electrically connected to the control panel 11 is provided on 11, and two switch keys 12 electrically connected to the stamping part 10 and the cylinder 55 are respectively provided on the control panel 11. The cylinder 55 drives the U-shaped frame 52 on the push rod 56 to move, so that the U-shaped frame 52 drives the sliding seat 53 to move along the slide groove 57, and finally drives the No. 2 lower mold 54 on the sliding seat 53 to move toward the side close to the anti-wrinkle mechanism 3. At this time, the No. 2 wedge block 58 and the No. 1 wedge block 37 move in a wedge shape along the inclined surface, thereby driving the No. 2 lower mold 54 at one end of the No. 2 wedge block 58 to be placed below the deep stretching area of ​​the aluminum plate 7. When the No. 2 lower mold 54 moves to the bottom of the aluminum plate 7 and fits with the aluminum plate 7, the stamping part 10 can be driven to complete the mold closing operation, and the replacement operation of the anti-wrinkle mechanism 3 is completed during the mold closing process.

[0032] It should be noted that the present invention is a cold stamping forming die for a wrinkle-proof aluminum plate diesel engine protective cover. When the cold stamping forming die is needed to cold stamp the aluminum plate to form an aluminum plate diesel engine protective cover, the aluminum plate 7 is first placed on the upper end of the No. 1 lower die 4, and then the stamping part 10 is driven to operate, so that the stamping part 10 drives the upper die 9 to descend to stamp the aluminum plate 7. During the stamping process, the area with a larger stretching depth of the aluminum plate 7 first contacts the anti-wrinkle part 31, and with the stamping operation of the upper die 9, the No. 2 spring 313 is compressed, and the sheet material buffer pad 312 is deformed with the deformation of the aluminum plate 7. The deformation of 312 drives the ring 315 of the connecting rod 314 to rise along the vertical rod 32. At the same time, under the stamping action of the upper mold 9, the entire vertical rod 32 moves downward, the telescopic guide column 35 at the lower end of the cross plate 33 contracts, and the No. 1 spring 34 is compressed. During the stamping process of the stamping part 10, the anti-wrinkle mechanism 3 in the No. 1 lower mold 4 first contacts the aluminum plate 7, so that the stamping part 10 and the arc block 311 are pressed and positioned together, avoiding the failure to press the stamping part 10 during the pressing process, thereby avoiding the occurrence of wrinkles. In addition, the sheet material buffer pads 312 at both ends of the arc block 311 can be deformed as the stamping part 10 is deformed, and the sheet material buffer pads 312 at both ends of the arc block 311 can be deformed. The punch pad 312 is placed in the deep stretching area of ​​the stamping part 10 to prevent the stamping part 10 from being stretched too deeply, resulting in too fast sheet material flow and wrinkling during the material feeding process; as the anti-wrinkle mechanism 3 descends, when the light receiver 59 receives the receiving light emitted by the light transmitter 36, the light receiver 59 transmits a contact signal to the control panel 11, and the control panel 11 controls the alarm 13 to start. At this time, the operator controls the stamping part 10 to stop driving in time through the switch key 12 according to the alarm prompt sound emitted by the alarm 13, and starts the operation of the cylinder 55, and the cylinder 55 drives the U-shaped frame 52 on the push rod 56 to move, so that the U The mold frame 52 drives the sliding seat 53 to move along the slide groove 57, and finally drives the No. 2 lower mold 54 on the sliding seat 53 to move toward the side close to the anti-wrinkle mechanism 3. At this time, the No. 2 wedge block 58 and the No. 1 wedge block 37 move in a wedge shape along the inclined surface, thereby driving the No. 2 lower mold 54 at one end of the No. 2 wedge block 58 to be placed below the deep stretching area of ​​the aluminum plate 7. When the No. 2 lower mold 54 moves to the bottom of the aluminum plate 7 and fits with the aluminum plate 7, the stamping part 10 can be driven to complete the mold closing operation, which is convenient for the smooth progress of the mold closing operation. There is no need to manually disassemble and replace the anti-wrinkle mechanism 3, which avoids the cracking of the stamped product due to the anti-wrinkle mechanism 3 during the mold closing process.

[0033] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cold stamping die for a wrinkle-proof aluminum plate diesel engine protective cover, comprising a base (1), a column (2) located on the base (1), a top plate (8) located on the column (2), an upper die (9) located on the column (2), a stamping part (10) located on the top plate (8) and used to drive the upper die (9) to move up and down, and a lower die (4) located at the upper end of the base (1) and matching the upper die (9), characterized in that: It also includes a cavity (6) opened inside the No. 1 lower mold (4), an anti-wrinkle mechanism (3) located in the cavity (6) and used for double anti-wrinkle of the aluminum plate (7), and a clamping mechanism (5) located in the cavity (6) and used for replacing the anti-wrinkle mechanism (3); The upper mold (9) is also provided with a control panel (11) electrically connected to the stamping part (10) and the mold clamping mechanism (5); The anti-wrinkle mechanism (3) comprises a vertical rod (32) located in the cavity (6), an anti-wrinkle member (31) located on the vertical rod (32) and used to prevent wrinkles at the concave stretching portion of the aluminum plate (7), a horizontal plate (33) located on the outer surface of the vertical rod (32), a telescopic guide column (35) located at the lower end of the horizontal plate (33), and a No. 1 spring (34) sleeved on the outer surface of the telescopic guide column (35); Wherein, the lower end of the telescopic guide column (35) is fixedly connected to the lower end of the cavity (6); The anti-wrinkle component (31) comprises a collar (315) sleeved on the outer surface of the vertical rod (32), two connecting rods (314) located on the collar (315), two mounting seats (316) located at the upper ends of the connecting rods (314) and connected to the connecting rods (314) via rotating shafts, two sheet material buffer pads (312) located at the upper ends of the mounting seats (316), an arc block (311) located between the sheet material buffer pads (312), and a No. 2 spring (313) located at the lower end of the arc block (311) and connected to the vertical rod (32); A first wedge block (37) is provided on one side of the arc-shaped block (311), and a light emitter (36) is provided on one side of the first wedge block (37); The clamping mechanism (5) comprises a cylinder (55) connected to the inner wall of the cavity (6), a push rod (56) located at the output end of the cylinder (55), a U-shaped frame (52) located on the side of the push rod (56) facing away from the cylinder (55), two sliding seats (53) located at the opening of the U-shaped frame (52), a second lower mold (54) located between the sliding seats (53), and two vertical plates (51) slidably connected to the sliding seats (53) and having sliding grooves (57), wherein the second lower mold (54) matches the upper mold (9); A second wedge block (58) is provided on one side of the second lower mold (54) close to the wrinkle prevention member (31); a light receiver (59) matching the light transmitter (36) is provided on the second wedge block (58); The second wedge block (58) and the first wedge block (37) move in a wedge shape, and the light receiver (59) is electrically connected to the control panel (11).

2. The cold stamping die for the wrinkle-proof aluminum plate diesel engine protection cover according to claim 1 is characterized in that: The lower end of the vertical plate (51) is fixedly connected to the lower end of the cavity (6).

3. The cold stamping die for the wrinkle-proof aluminum plate diesel engine protection cover according to claim 1, characterized in that: The control panel (11) is provided with an alarm (13) electrically connected to the control panel (11), and the control panel (11) is also provided with two switch keys (12) electrically connected to the stamping part (10) and the cylinder (55), respectively.

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