Non-inductive scratch metal plate stamping die

Abstract

The invention provides a non-inductive scratch metal plate stamping die, and relates to the technical field of stamping dies. The non-inductive scratch metal plate stamping die comprises an upper die body and a lower die body which are connected together in a sliding mode through a guiding piece, a die pressing assembly is connected to the upper die body in an inserted mode, the lower die body is provided with a concave position matched with the die pressing assembly, the upper die body comprises an upper die fixing block, an upper die positioning block, an upper die top pressing block and an upper die edge pressing block, and the upper die fixing block is connected with the upper die positioning block. The lower die body comprises a lower die fixing block and a lower die supporting block, the upper die ejecting block and the upper die edge pressing block are coated with liquid lubricating oil through liquid channels in the upper die ejecting block and the upper die edge pressing block, and meanwhile the lower die supporting block is coated with the liquid lubricating oil through a liquid channel in the lower die supporting block. According to the invention, the upper and lower sides of the metal plate and the die have good lubricity in the stamping process, scratches on the surface of the metal plate in the stamping process are avoided, meanwhile, liquid lubricating oil is prevented from being sputtered to the outer side of the die, and the effect of saving the liquid lubricating oil is achieved to a certain extent.

Description

Technical Field

[0001] The present application relates to the technical field of stamping dies, and in particular to a scratch-free metal plate stamping die. Background Art

[0002] No-scratch means that during the stamping process of metal plates, there will be almost no scratches on the surface of the metal plates that can be clearly felt. This is in contrast to traditional stamping dies. When stamping metal plates, traditional stamping dies are prone to leaving scratches on the surface of metal plates due to factors such as friction between the die and the surface of the metal plate, unreasonable die structure (such as sharp corners, insufficient die precision, etc.), etc., while no-scratch stamping dies minimize the possibility of such scratches, making the surface quality of the metal plate after stamping higher.

[0003] However, the existing scratch-free metal plate stamping dies usually only use oil spraying on the upper surface of the metal plate when stamping the metal plate to reduce the friction between the metal plate and the die. This method cannot avoid scratches between the lower surface of the metal plate and the die. At the same time, the oil spraying method will inevitably cause incomplete oil coverage or cause oil to spill on the outside of the metal plate, resulting in oil waste. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a scratch-free metal plate stamping die, comprising an upper die body and a lower die body slidably connected together by a guide member, a die assembly being inserted into the upper die body, and a recess adapted to the die assembly being provided on the lower die body, wherein the upper die body comprises an upper die fixing block, an upper die positioning block, an upper die top pressure block and an upper die side pressure block, the upper die positioning block being arranged on the bottom side of the upper die fixing block, the upper die top pressure block being embedded in the bottom side of the upper die positioning block, and the upper die side pressure blocks being symmetrically arranged on both sides of the upper die top pressure block; the lower die body comprises an upper die fixing block, an upper die positioning block, an upper die top pressure block and an upper die side pressure block, the upper die positioning block being arranged on the bottom side of the upper die positioning block, and the upper die side pressure blocks being symmetrically arranged on both sides of the upper die top pressure block; the lower die body comprises an upper die fixing block, an upper die positioning block, an upper die top pressure block and an upper die side pressure block, the upper die fixing block and an upper die top pressure block being arranged on the bottom side of the upper die positioning block, and the upper die side pressure blocks being symmetrically arranged on both sides of the upper die top pressure block; the upper die body comprises an upper die fixing block, an upper die positioning block and an upper die top pressure block. It comprises a lower die fixing block and a lower die supporting block, the lower die supporting block is embedded in the lower die fixing block, the lower die supporting block is respectively matched with the upper die top pressing block and the two upper die side pressing blocks; the upper die top pressing block and the two upper die side pressing blocks are provided with liquid channels, the outlets of the liquid channels are respectively provided at the bottom side of the upper die top pressing block and the side where the upper die side pressing blocks are close to each other; the lower die supporting block is provided with a liquid channel, the outlet of the liquid channel is provided at the top end of the lower die supporting block, and the bottom end of the lower die supporting block is provided with a liquid discharge port.

[0005] In addition, the scratch-free metal plate stamping die according to the embodiment of the present application also has the following additional technical features:

[0006] Preferably, a plurality of top pressing block oil nozzles are plugged into the side wall of the upper die positioning block, and the top pressing block oil nozzles are respectively communicated with the liquid channels in the top pressing block of the upper die.

[0007] Preferably, a convex portion is provided on the lower end surface of the upper die pressing block, the convex portion is arranged in an arc shape, and an upper die through-groove for the die assembly to pass through is arranged at the center of the convex portion.

[0008] Preferably, the structures on the raised portion located on both sides of the upper mold through groove are symmetrically arranged, wherein a plurality of upper mold liquid through grooves facing the upper mold through groove are evenly spaced on the raised portion, the outlet of the liquid channel in the upper mold top pressure block is the top pressure block infusion hole, the top pressure block infusion hole is located in the upper mold liquid through groove, and an upper mold equalizing flow groove is connected between the plurality of upper mold liquid through grooves, the upper mold equalizing flow groove is arranged in an M shape, and the M-shaped upper mold equalizing flow groove is arranged in an arc shape.

[0009] Preferably, a plurality of side pressing block oil nozzles are plugged into the side wall of the upper mold side pressing block, the plurality of side pressing block oil nozzles are connected to the liquid channel in the side pressing block oil nozzle, and the outlet of the liquid channel in the side pressing block oil nozzle is the side pressing block infusion hole.

[0010] Preferably, a plurality of lower die block oil nozzles are plugged into the side wall of the lower die support block, and the plurality of lower die block oil nozzles are in communication with the liquid channel in the lower die support block.

[0011] Preferably, a top side recessed portion is provided at the top of the lower die support block, and side recessed portions are symmetrically provided on both sides of the lower die support block, the top side recessed portion and the side recessed portions are communicated with each other, and a lower die stamping groove for inserting the die assembly is provided at the center of the top side recessed portion.

[0012] Preferably, the top side recessed portion is arranged in an arc shape, and a plurality of lower die liquid grooves facing the lower die stamping groove are evenly arranged on the top side recessed portion, and a double-sided groove is arranged between two adjacent lower die liquid grooves, and the double-sided grooves respectively connect the top side recessed portion and the side recessed portion, and the outlet of the liquid channel in the lower die support block is evenly arranged in the lower die liquid groove, and a drainage hole is arranged at the bottom end of the lower die stamping groove.

[0013] Preferably, the guide member includes a plurality of guide rods arranged on the upper mold body and a plurality of guide sleeves arranged on the lower mold body, and the plurality of guide rods and the plurality of guide sleeves correspond to each other one by one and are slidably plugged in.

[0014] Preferably, the die assembly includes a transmission shaft, a transmission block and a pressure block, the transmission shaft is slidably inserted in the upper die fixed block, the transmission block is slidably arranged on the upper die fixed block and fixedly connected to the transmission shaft, and the pressure block slides through the upper die top pressure block and is fixedly connected to the pressure block.

[0015] A scratch-free metal plate stamping die according to an embodiment of the present application has the beneficial effect of: utilizing the liquid channels in the upper die top pressure block and the upper die side pressure block to cover the upper die top pressure block and the upper die side pressure block with liquid lubricating oil on one side of the metal plate, and at the same time utilizing the liquid channels in the lower die support block to cover the top side of the lower die support block with liquid lubricating oil, so that the upper and lower sides of the metal plate and between the dies have good lubricity during the stamping process and scratches on the surface of the metal plate during the stamping process are avoided. At the same time, splashing of liquid lubricating oil to the outside of the die is avoided, which has the effect of saving liquid lubricating oil to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of a scratch-free metal plate stamping die according to an embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of the partial structure of a scratch-free metal plate stamping die according to an embodiment of the present application. Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the partial structure of a scratch-free metal plate stamping die according to an embodiment of the present application. Figure 2 ;

[0020] Figure 4 A local structural explosion of a scratch-free metal plate stamping die according to an embodiment of the present application Figure 1 ;

[0021] Figure 5 is a bottom view of the upper die pressing block according to an embodiment of the present application;

[0022] Figure 6 A local structural explosion of a scratch-free metal plate stamping die according to an embodiment of the present application Figure 2 .

[0023] Icons: 1. Upper mold body; 11. Upper mold fixing block; 12. Upper mold positioning block; 121. Top pressure block oil nozzle; 13. Upper mold top pressure block; 131. Raised part; 132. Upper mold through groove; 133. Upper mold liquid through groove; 134. Top pressure block infusion hole; 135. Upper mold equalizing groove; 14. Upper mold side pressure block; 141. Side pressure block oil nozzle; 142. Side pressure block infusion hole; 2. Lower mold body; 21. Lower mold Fixed block; 22, lower die support block; 221, lower die nozzle; 222, top side recess; 223, side recess; 224, lower die stamping groove; 225, lower die liquid groove; 226, double-sided groove; 227, drainage hole; 23, auxiliary guide rod; 3, guide member; 31, guide rod; 32, guide sleeve; 4, die assembly; 41, transmission shaft; 42, transmission block; 43, pressure block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] The following describes in detail a scratch-free metal plate stamping die of the present invention through a specific embodiment. Figure 1-Figure 6 As shown, a scratch-free metal plate stamping die includes an upper die body 1 and a lower die body 2 which are slidably connected together by a guide member 3, a die assembly 4 is inserted into the upper die body 1, and a recess adapted to the die assembly 4 is provided on the lower die body 2. It should be noted that in a specific embodiment of the present application, the upper die body 1 and the die assembly 4 are externally connected to a power device so that the upper die body 1 and the die assembly 4 can be lifted and lowered.

[0026] Specifically, the upper die body 1 includes an upper die fixing block 11, an upper die positioning block 12, an upper die top pressure block 13 and an upper die side pressure block 14. The upper die positioning block 12 is arranged on the bottom side of the upper die fixing block 11, the upper die top pressure block 13 is embedded in the bottom side of the upper die positioning block 12, and the upper die side pressure blocks 14 are symmetrically arranged on both sides of the upper die top pressure block 13; the lower die body 2 includes a lower die fixing block 21 and a lower die supporting block 22. The lower die supporting block 22 is embedded in the lower die fixing block 21, and the lower die supporting block 22 is respectively adapted to the upper die top pressure block 13 and the two upper die side pressure blocks 14. When stamping a metal plate, the metal plate is placed on the lower die supporting block 22, and the metal plate is stamped using the upper die top pressure block 13, the upper die side pressure blocks 14 on both sides, and the die assembly 4.

[0027] It should be noted that in the specific embodiment of the present application, liquid channels are provided in the upper die top block 13 and the two upper die side blocks 14, and the outlets of the liquid channels are respectively provided on the bottom side of the upper die top block 13 and the side where the upper die side blocks 14 are close to each other, and a liquid channel is provided in the lower die support block 22, and the outlet of the liquid channel is provided at the top end of the lower die support block 22, and a liquid drain port is provided at the bottom end of the lower die support block 22 to facilitate the discharge of the liquid lubricating oil remaining in the lower die support block 22.

[0028] like Figure 2 and Figure 4 As shown, a plurality of top pressing block oil nozzles 121 are plugged into the side wall of the upper mold positioning block 12 , and the top pressing block oil nozzles 121 are respectively communicated with the liquid channels in the upper mold top pressing block 13 .

[0029] like Figure 4 and Figure 5 As shown, a protrusion 131 is provided on the lower end surface of the upper die pressing block 13 . The protrusion 131 is arranged in an arc shape, and an upper die through-groove 132 for the die assembly 4 to pass through is arranged at the center of the protrusion 131 .

[0030] Specifically, Figure 5 As shown, the structures on the raised portion 131 located on both sides of the upper mold through groove 132 are symmetrically arranged, wherein a plurality of upper mold liquid through grooves 133 facing the upper mold through groove 132 are evenly spaced on the raised portion 131, the outlet of the liquid channel in the upper mold top pressure block 13 is the top pressure block infusion hole 134, the top pressure block infusion hole 134 is located in the upper mold liquid through groove 133, and an upper mold equalizing groove 135 is connected between the plurality of upper mold liquid through grooves 133, the upper mold equalizing groove 135 is M-shaped, and the M-shaped upper mold equalizing groove 135 is arc-shaped. It should be noted that in a specific embodiment of the present application, the top pressure block infusion hole 134 is located on both sides of the raised portion 131, so that the liquid lubricating oil discharged therefrom can flow along the arc surface, and each section of the M-shaped upper mold equalizing groove 135 is an arc in the same direction, as shown in FIG. Figure 5 As shown, such a design can make the liquid lubricant discharged from the infusion hole 134 of the top pressure block flow along the upper mold flow groove 135 during the flow process, so that each upper mold liquid groove 133 contains liquid lubricant. In this way, the entire raised portion 131 can be covered with liquid lubricant, avoiding scratches on the upper surface of the metal plate during the stamping process due to partial areas not covered with liquid lubricant.

[0031] like Figure 2 , Figure 4 and Figure 6As shown, a plurality of side pressing block oil nozzles 141 are inserted into the side wall of the upper die side pressing block 14, and the plurality of side pressing block oil nozzles 141 are connected to the liquid channel in the side pressing block oil nozzles 141. The outlet of the liquid channel in the side pressing block oil nozzles 141 is the side pressing block infusion hole 142. This design can reduce the friction between the upper die side pressing block 14 and the metal plate when the upper die side pressing block 14 abuts against the metal plate, thereby avoiding scratches on the upper surface of the metal plate during the stamping process.

[0032] like Figure 3 As shown, a plurality of lower die block oil nozzles 221 are plugged into the side wall of the lower die support block 22 , and the plurality of lower die block oil nozzles 221 are in communication with the liquid channel in the lower die support block 22 .

[0033] Specifically, a top side recess 222 is provided at the top of the lower die support block 22, and side recesses 223 are symmetrically provided on both sides of the lower die support block 22. The top side recess 222 and the side recess 223 are connected, and a lower die stamping groove 224 for inserting the working die assembly 4 is provided at the center of the top side recess 222.

[0034] Further, such as Figure 3 and Figure 6 As shown, the top side recessed portion 222 is arranged in an arc shape. It should be noted that the top side recessed portion 222 is adapted to the raised portion 131, and the side recessed portion 223 is adapted to the upper die side pressure block 14. A plurality of lower die liquid grooves 225 facing the lower die stamping groove 224 are evenly arranged on the top side recessed portion 222, and a double-sided groove 226 is arranged between two adjacent lower die liquid grooves 225. The double-sided grooves 226 are respectively connected to the top side recessed portion 222 and the side recessed portion 223, and the outlet of the liquid channel in the lower die support block 22 is evenly arranged in the lower die liquid groove 225. A drainage hole 227 is arranged at the bottom end of the lower die stamping groove 224, and the drainage hole 227 can discharge the liquid lubricating oil in the lower die body 2.

[0035] It should be noted that, in a specific embodiment of the present application, the outlets of the liquid channel in the lower die support block 22 are arranged on both sides of the top side recess 222. When the metal plate abuts against the top side recess 222 during the stamping process, part of the liquid lubricating oil flowing out of the outlet of the liquid channel in the lower die support block 22 can flow to the side recess 223, so that the bottom side of the entire metal plate and the lower die support block 22 are filled with liquid lubricating oil, thereby avoiding scratches on the bottom side of the metal plate during the stamping process.

[0036] like Figure 1-Figure 3As shown, the guide member 3 includes a plurality of guide rods 31 arranged on the upper mold body 1 and a plurality of guide sleeves 32 arranged on the lower mold body 2. The plurality of guide rods 31 and the plurality of guide sleeves 32 correspond to each other one by one and are slidably plugged in. It should be noted that in a specific embodiment of the present application, a plurality of auxiliary guide rods 23 are evenly arranged on the lower mold fixing block 21. The auxiliary guide rods 23 are slidably plugged in the upper mold positioning block 12, thereby further positioning the upper mold body 1 during the downward pressing process.

[0037] Among them, the die assembly 4 includes a transmission shaft 41, a transmission block 42 and a pressure block 43. The transmission shaft 41 is slidably inserted into the upper die fixed block 11, the transmission block 42 is slidably set on the upper die fixed block 11 and fixedly connected to the transmission shaft 41, and the pressure block 43 slides through the upper die top pressure block 13 and is fixedly connected to the pressure block 43, so that the center of the metal plate can be further stamped through the downward pressing action of the pressure block 43.

[0038] It should be noted that in the specific embodiment of the present application, the liquid lubricating oil can be provided by an external oiling device. The specific time and location of the oiling during the stamping process can be adjusted according to the actual needs of the product. The present application does not limit the time point of the oiling. At the same time, the liquid lubricating oil discharged through the drain hole 227 can be recycled and reused by an external recovery device to further improve the use efficiency of the liquid lubricating oil.

[0039] It can be seen from this that a scratch-free metal plate stamping die of the present application utilizes the liquid channels in the upper die top pressure block 13 and the upper die side pressure block 14 to cover the liquid lubricant on one side of the metal plate, and at the same time utilizes the liquid channel in the lower die support block 22 to cover the top side and the side recessed portion 223 with liquid lubricant during the stamping process. Therefore, the upper and lower sides of the metal plate have good lubricity during the stamping process and between the dies, avoiding scratches on the surface of the metal plate during the stamping process. At the same time, it avoids the liquid lubricant from splashing to the outside of the die, which saves liquid lubricant to a certain extent.

[0040] It should be noted that the specific models and specifications of the upper mold fixing block 11, the upper mold positioning block 12, the upper mold top pressure block 13, the lower mold fixing block 21, the lower mold supporting block 22, the auxiliary guide rod 23, the guide rod 31, the guide sleeve 32, the transmission shaft 41, the transmission block 42 and the pressure block 43 need to be selected and determined according to the actual specifications of the device, and the specific selection and calculation method adopts the existing technology in the field, so it will not be described in detail.

[0041] The above embodiments are only used to illustrate the specific embodiments of the present invention and are not limited thereto. For those skilled in the art, various similar deformations and changes can be made according to the concept of the present invention, and these deformations and changes should be regarded as the protection scope of the present invention.

Claims

1. A scratch-free metal plate stamping die, comprising an upper die body (1) and a lower die body (2) slidably connected together by a guide member (3), a die assembly (4) being inserted into the upper die body (1), and a recessed portion adapted to the die assembly (4) being provided on the lower die body (2), characterized in that: The upper mold body (1) comprises an upper mold fixing block (11), an upper mold positioning block (12), an upper mold top pressing block (13) and an upper mold side pressing block (14); the upper mold positioning block (12) is arranged on the bottom side of the upper mold fixing block (11); the upper mold top pressing block (13) is embedded on the bottom side of the upper mold positioning block (12); and the upper mold side pressing blocks (14) are symmetrically arranged on both sides of the upper mold top pressing block (13); The lower die body (2) comprises a lower die fixing block (21) and a lower die supporting block (22), wherein the lower die supporting block (22) is embedded in the lower die fixing block (21), and the lower die supporting block (22) is respectively matched with the upper die top pressing block (13) and the two upper die side pressing blocks (14); The upper die top pressing block (13) and the two upper die side pressing blocks (14) are provided with liquid channels, and the outlets of the liquid channels are respectively provided on the bottom side of the upper die top pressing block (13) and on the side of the upper die side pressing blocks (14) close to each other; A liquid channel is arranged in the lower die support block (22), the outlet of the liquid channel is arranged at the top end of the lower die support block (22), and a liquid discharge port is arranged at the bottom end of the lower die support block (22).

2. The scratch-free metal plate stamping die according to claim 1, characterized in that: A plurality of top-pressing block oil nozzles (121) are plugged into the side wall of the upper die positioning block (12), and the top-pressing block oil nozzles (121) are respectively connected to the liquid channels in the upper die top-pressing block (13).

3. The scratch-free metal plate stamping die according to claim 1, characterized in that: The lower end surface of the upper die pressing block (13) is provided with a protrusion (131), the protrusion (131) is arranged in an arc shape, and an upper die through-groove (132) for the die assembly (4) to pass through is arranged at the center of the protrusion (131).

4. The scratch-free metal plate stamping die according to claim 3, characterized in that: The structures on the raised portion (131) located on both sides of the upper mold through groove (132) are symmetrically arranged, wherein a plurality of upper mold liquid through grooves (133) facing the upper mold through groove (132) are evenly spaced on the raised portion (131), the outlet of the liquid channel in the upper mold top pressure block (13) is the top pressure block infusion hole (134), the top pressure block infusion hole (134) is located in the upper mold liquid through groove (133), and an upper mold equalizing flow groove (135) is connected between the plurality of upper mold liquid through grooves (133), the upper mold equalizing flow groove (135) is arranged in an M shape, and the M-shaped upper mold equalizing flow groove (135) is arranged in an arc shape.

5. The scratch-free metal plate stamping die according to claim 1, characterized in that: A plurality of side pressing block oil nozzles (141) are plugged into the side wall of the upper die side pressing block (14); the plurality of side pressing block oil nozzles (141) are in communication with a liquid channel in the side pressing block oil nozzle (141); and the outlet of the liquid channel in the side pressing block oil nozzle (141) is a side pressing block liquid infusion hole (142).

6. The scratch-free metal plate stamping die according to claim 1, characterized in that: A plurality of lower die block oil nozzles (221) are plugged into the side wall of the lower die support block (22), and the plurality of lower die block oil nozzles (221) are in communication with a liquid channel in the lower die support block (22).

7. The scratch-free metal plate stamping die according to claim 1, characterized in that: The top of the lower die support block (22) is provided with a top side recessed portion (222), and the two sides of the lower die support block (22) are symmetrically provided with side recessed portions (223), the top side recessed portion (222) and the side recessed portions (223) are communicated with each other, and a lower die stamping groove (224) for inserting the die assembly (4) is provided at the center of the top side recessed portion (222).

8. The scratch-free metal plate stamping die according to claim 7, characterized in that: The top side recessed portion (222) is arranged in an arc shape, and a plurality of lower die liquid through grooves (225) facing the lower die stamping groove (224) are evenly arranged on the top side recessed portion (222), and a double-sided groove (226) is arranged between two adjacent lower die liquid through grooves (225), and the double-sided grooves (226) are respectively connected to the top side recessed portion (222) and the side recessed portion (223), and the outlet of the liquid channel in the lower die support block (22) is evenly arranged in the lower die liquid through groove (225), and a drainage hole (227) is arranged at the bottom end of the lower die stamping groove (224).

9. The scratch-free metal plate stamping die according to claim 1, characterized in that: The guide member (3) comprises a plurality of guide rods (31) arranged on the upper mold body (1) and a plurality of guide sleeves (32) arranged on the lower mold body (2); the plurality of guide rods (31) and the plurality of guide sleeves (32) correspond to each other one by one and are slidably plugged in.

10. The scratch-free metal plate stamping die according to claim 1, characterized in that: The die assembly (4) comprises a transmission shaft (41), a transmission block (42) and a pressure block (43); the transmission shaft (41) is slidably inserted into the upper die fixing block (11); the transmission block (42) is slidably arranged on the upper die fixing block (11) and is fixedly connected to the transmission shaft (41); and the pressure block (43) slidably passes through the upper die top pressure block (13) and is fixedly connected to the pressure block (43).

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