High-precision stamping die and stamping method thereof

Abstract

The invention discloses a high-precision stamping die and a stamping method thereof, and relates to the technical field of stamping dies, the high-precision stamping die comprises a pushing slide rail, a placing plate is slidably arranged in the pushing slide rail, and an aluminum alloy plate is placed on the upper surface of the placing plate; the die assembly device further comprises two die assembly rails and a driving block, die assembly assemblies are arranged on the die assembly rails in a sliding mode, and a locking assembly is arranged on the driving block. According to the high-precision stamping die and the stamping method thereof, the die assembly assembly is arranged to move to sweep and push foreign matter on the sliding rail, die assembly is carried out at the same time, the locking assembly is synchronously driven to lock an aluminum alloy plate, and meanwhile die assembly is assisted; the aluminum alloy plate is firmly fixed, the upper die set and the lower die set are firmly fixed, stamping errors are reduced, high-precision stamping is achieved, after stamping is completed, in the process of pulling out the containing plate, the aluminum alloy plate is ejected out when the locking assembly is driven to reset, demolding is conducted, and therefore the whole stamping process is more automatic.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, and in particular to a high-precision stamping die and a stamping method thereof. Background Art

[0002] Aluminum alloy is an alloy material formed by adding aluminum as the base element and other alloying elements (such as copper, magnesium, manganese, silicon, zinc, etc.).

[0003] Aluminum alloys have many excellent properties and a wide range of applications. They are widely used in the automotive, aerospace, electronics and other fields. Especially in the aerospace field, aluminum alloys can be made into aircraft wings, fuselages, engine parts and other products through a variety of processing techniques (such as high-precision stamping, etc.) due to their light weight, high strength and good fatigue resistance, making aluminum alloys one of the most important materials in the aerospace industry.

[0004] The stamping process is a fast and efficient processing method that can complete the production of a large number of products in a short period of time. However, under the existing technology, when stamping aluminum alloys with high precision, in order to ensure the high precision of the product, it is often necessary to reduce the processing speed or degree of automation to prevent stamping errors. Therefore, when stamping aluminum alloys, it is very important to combine high automation, high precision and fast production. Summary of the invention

[0005] The object of the present invention is to provide a high-precision stamping die and a stamping method thereof to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A high-precision stamping die comprises a push slide rail, a placement plate is slidably arranged in the push slide rail, and an aluminum alloy plate is placed on the upper surface of the placement plate;

[0008] It also includes two mold clamping rails and a driving block, wherein a mold clamping assembly is slidably arranged on the mold clamping rails, and a locking assembly is arranged on the driving block;

[0009] During the process of pushing the placement plate into the push slide rail, the mold closing assembly is driven to move to clear foreign objects on the push slide rail while closing the mold, and the locking assembly is synchronously driven to lock the aluminum alloy plate while assisting in mold closing. After the stamping is completed, during the process of pulling out the placement plate, the locking assembly is driven to reset and eject the aluminum alloy plate for demolding.

[0010] As a further preferred solution in the embodiment of the present invention, two sliding blocks are slidably connected in the two mold clamping rails respectively, and a mold clamping piece is fixedly connected between the two sliding blocks.

[0011] As a further preferred scheme in the embodiment of the present invention, the mold closing assembly includes a first connecting rod fixedly connected to the side surface of the mold closing track, and one end of the first connecting rod is rotatably connected to a fourth connecting rod, and a second connecting rod is fixedly connected to the side surface of the mold closing member, and one end of the second connecting rod is rotatably connected to a third connecting rod, and one end of the third connecting rod is rotatably connected to the middle part of the fourth connecting rod, and one end of the fourth connecting rod is fixedly connected to a mold closing strip.

[0012] As a further preferred solution in the embodiment of the present invention, a lower mold groove is provided in the middle of the placement plate, a baffle is fixedly connected to the upper surface of the placement plate, and one side surface of the aluminum alloy plate abuts against one side surface of the baffle.

[0013] As a further preferred solution in the embodiment of the present invention, it also includes two support rails, two sliding plates are slidably connected in the two support rails respectively, the driving block is fixedly connected between the two sliding plates, a driving inclined surface is provided on one side of the upper surface of the driving block, and a connecting plane is provided on the other side of the upper surface of the driving block.

[0014] As a further preferred scheme in the embodiment of the present invention, the locking assembly includes a connecting seat fixedly connected to the connecting plane, and a locking claw is rotatably connected inside the connecting seat, and a limit groove is provided in the middle of the locking claw, and a limit rod is fixedly connected to the surface of one side of the support rail, and one end of the limit rod is arranged inside the limit groove and slidably cooperates with the limit groove.

[0015] As a further preferred scheme in the embodiment of the present invention, a clamping groove is provided on one side surface of the mold part, and a clamping block is provided at one end of the locking claw, the clamping block is adapted to the position of the clamping groove, and a locking rod is fixedly connected to the lower surface of the locking claw, and the locking rod abuts against the upper surface of the aluminum alloy plate.

[0016] As a further preferred solution in the embodiment of the present invention, a demoulding rod is provided on the upper surface of the other end of the locking claw, and the demoulding rod is located below the lower mold groove.

[0017] As a further preferred scheme in the embodiment of the present invention, a mold closing groove is provided inside the mold closing part, and a top plate is fixedly connected to the upper ends of the two mold closing rails. A hydraulic press is provided on the lower surface of the top plate, and an upper module is connected to the telescopic end of the hydraulic press, and the upper module is slidably matched with the mold closing groove.

[0018] A high-precision stamping method, punching with the above-mentioned high-precision stamping die, comprises the following steps:

[0019] S1: placing the aluminum alloy plate on the placement plate and making the aluminum alloy plate abut against one side of the baffle;

[0020] S2: Push the placement plate into the push rail;

[0021] S3: During the pushing process, the placement plate abuts against the mold clamping bar and is continuously pushed in, so that the mold clamping assembly moves to lower the mold clamping piece for mold clamping;

[0022] S4: Push the mold strip until it rotates, and the placement plate abuts against the driving inclined surface and continues to push in, so that the driving block descends;

[0023] S5: The driving block descends to drive the locking assembly to move, so that the locking rod fixes the aluminum alloy plate, and the clamping block and the clamping groove are clamped together to assist mold closing;

[0024] S6: Start the hydraulic press to press down the upper die block to punch the aluminum alloy plate;

[0025] S7: After the stamping is completed, the placement plate is pulled out to reset the locking assembly. During the resetting process of the locking assembly, the demoulding rod is tilted up to push the aluminum alloy plate out of the lower die groove to assist in demoulding.

[0026] In the above technical solution, the high-precision stamping die and stamping method provided by the present invention have the following beneficial effects:

[0027] The present invention arranges a placement plate to place the aluminum alloy plate and then pushes the aluminum alloy plate into the push slide rail. During the pushing process, the mold clamping assembly is driven to move to sweep away foreign matter on the push slide rail while performing mold clamping, and the locking assembly is synchronously driven to lock the aluminum alloy plate while assisting in mold clamping. Therefore, during the stamping process, the aluminum alloy plate is firmly fixed and the upper and lower mold groups are firmly fixed, thereby reducing stamping errors and achieving high-precision stamping. After the stamping is completed, when the placement plate is pulled out, the locking assembly is driven to reset and the aluminum alloy plate is ejected for demolding, thereby making the entire stamping process more automated.

[0028] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0029] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0031] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of the overall structure from another perspective provided by an embodiment of the present invention;

[0033] Figure 3 The embodiment of the present invention provides Figure 2 The enlarged structural diagram at A in the middle;

[0034] Figure 4 A schematic structural diagram of a mold clamping assembly in an initial state provided by an embodiment of the present invention;

[0035] Figure 5 The embodiment of the present invention provides Figure 4 The enlarged structural diagram at B in the middle;

[0036] Figure 6 A schematic diagram of the structure of a placement plate provided in an embodiment of the present invention;

[0037] Figure 7 A schematic diagram of a local structure provided by an embodiment of the present invention;

[0038] Figure 8 The embodiment of the present invention provides Figure 7 Enlarged structural diagram at point C in the middle.

[0039] Description of reference numerals:

[0040] 1. Top plate; 101. Hydraulic press; 102. Upper module; 2. Mold clamping track; 201. Sliding block; 202. Mold clamping part; 203. First connecting rod; 204. Second connecting rod; 205. Third connecting rod; 206. Fourth connecting rod; 207. Mold clamping strip; 208. Mold clamping groove; 209. Clamping groove; 3. Placement plate; 301. Baffle plate; 302. Aluminum alloy plate; 303. Lower mold groove; 304. Push handle; 4. Support track; 401. Sliding plate; 402. Driving block; 403. Driving slope; 404. Connecting plane; 5. Support rod; 501. Pushing slide rail; 6. Connecting seat; 601. Locking claw; 602. Clamping block; 603. Locking rod; 604. Limiting groove; 605. Limiting rod; 606. Demolding rod. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0042] See also Figure 1 - Figure 8A high-precision stamping die comprises a push slide 501, a placement plate 3 is slidably arranged in the push slide 501, and an aluminum alloy plate 302 is placed on the upper surface of the placement plate 3;

[0043] It also includes two mold clamping rails 2 and a driving block 402, a mold clamping assembly is slidably arranged on the mold clamping rails 2, and a locking assembly is arranged on the driving block 402;

[0044] When the placement plate 3 is pushed into the push rail 501, the mold closing assembly is driven to move to clear foreign objects on the push rail 501 while closing the mold, and the locking assembly is synchronously driven to lock the aluminum alloy plate 302 while assisting in closing the mold. After the stamping is completed, when the placement plate 3 is pulled out, the locking assembly is driven to reset and the aluminum alloy plate 302 is ejected for demolding.

[0045] The present invention arranges a placement plate 3 to place the aluminum alloy plate 302 and then pushes the aluminum alloy plate 302 into the push slide rail 501. During the pushing process, the mold clamping assembly is driven to move to sweep away foreign matter on the push slide rail 501 while performing mold clamping, and the locking assembly is synchronously driven to lock the aluminum alloy plate 302 while assisting in mold clamping. Therefore, during the stamping process, the aluminum alloy plate 302 is firmly fixed and the upper and lower mold groups are firmly fixed, thereby reducing stamping errors and achieving high-precision stamping. After the stamping is completed, when the placement plate 3 is pulled out, the locking assembly is driven to reset and eject the aluminum alloy plate 302 for demolding, thereby making the entire stamping process more automated.

[0046] Furthermore, a support rod 5 is fixedly connected to the lower surface of the pushing slide rail 501 .

[0047] In an embodiment further provided by the present invention, two sliding blocks 201 are slidably connected in the two mold clamping rails 2 respectively, and a mold clamping piece 202 is fixedly connected between the two sliding blocks 201 .

[0048] In an embodiment further provided by the present invention, the mold closing assembly includes a first connecting rod 203 fixedly connected to a side surface of the mold closing track 2, and one end of the first connecting rod 203 is rotatably connected to a fourth connecting rod 206, and a second connecting rod 204 is fixedly connected to a side surface of the mold closing member 202, and one end of the second connecting rod 204 is rotatably connected to a third connecting rod 205, and one end of the third connecting rod 205 is rotatably connected to the middle part of the fourth connecting rod 206, and one end of the fourth connecting rod 206 is fixedly connected to a mold closing strip 207.

[0049] Furthermore, there are two of each of the first connecting rod 203 , the second connecting rod 204 , the third connecting rod 205 and the fourth connecting rod 206 , and they are mirror-symmetrical about the perpendicular line of the mold clamping part 202 .

[0050] Furthermore, the mold strip 207 is fixedly connected between the two fourth connecting rods 206 .

[0051] Specifically, when the placement plate 3 is pushed in, the entry end abuts against the mold closing bar 207, driving the mold closing bar 207 to move inward, thereby driving the fourth connecting rod 206 to rotate on the first connecting rod 203, and then pulling the third connecting rod 205 to rotate on the second connecting rod 204, and then pulling the second connecting rod 204, so that the second connecting rod 204 descends, so that the mold closing part 202 descends in the mold closing track 2 for mold closing.

[0052] In an embodiment further provided by the present invention, a lower die groove 303 is provided in the middle of the placement plate 3 , a baffle 301 is fixedly connected to the upper surface of the placement plate 3 , and one side surface of the aluminum alloy plate 302 abuts against one side surface of the baffle 301 .

[0053] Furthermore, a hydraulic rod or other telescopic device is provided on the outer side of the placement plate 3 for pushing in and pulling out the placement plate 3, which is common knowledge for those skilled in the art and will not be described in detail.

[0054] Furthermore, a push handle 304 is provided on the outer side of the placement plate 3 to provide a manual operation function when the telescopic device is damaged.

[0055] In an embodiment further provided by the present invention, two support rails 4 are further included, two sliding plates 401 are slidably connected in the two support rails 4, a driving block 402 is fixedly connected between the two sliding plates 401, a driving inclined surface 403 is provided on one side of the upper surface of the driving block 402, and a connecting plane 404 is provided on the other side of the upper surface of the driving block 402.

[0056] Furthermore, an elastic member is provided inside the support rail 4, and the elastic member is connected between the bottom of the sliding plate 401 and the bottom of the support rail 4 to support the driving block 402 and automatically drive the driving block 402 to reset after the stamping is completed. This is common knowledge among technicians in this field and will not be repeated.

[0057] Furthermore, the initial position of the driving block 402 is at the top of the supporting rail 4, the driving inclined surface 403 thereon extends out of the pushing rail 501, its vertical position is above the upper surface of the pushing rail 501, and its horizontal position is behind the fourth connecting rod 206 in the initial state.

[0058] Specifically, after the placement plate 3 pushes the mold clamping bar 207 to move to a certain angle, the lower edge of the placement plate 3 abuts against the driving inclined surface 403 , thereby pressing the driving block 402 downward to make it slide downward in the support track 4 .

[0059] In an embodiment further provided by the present invention, the locking assembly includes a connecting seat 6 fixedly connected to the connecting plane 404, and a locking claw 601 is rotatably connected inside the connecting seat 6, and a limiting groove 604 is provided in the middle of the locking claw 601, and a limiting rod 605 is fixedly connected to the surface of one side of the support rail 4, and one end of the limiting rod 605 is arranged inside the limiting groove 604 and slidably cooperates with the limiting groove 604.

[0060] Furthermore, in the initial state, the limiting rod 605 is located at the bottom of the limiting groove 604. When the limiting rod 605 is locked by punching, the limiting rod 605 is as shown in FIG. Figure 7 It is shown at the top of the limiting groove 604 .

[0061] Specifically, when the driving block 402 slides down, the connecting seat 6 also descends, thereby driving the locking claw 601 to descend, and under the action of the limiting rod 605 and the limiting groove 604, the movement trajectory of the locking claw 601 is limited to a retracting movement.

[0062] In an embodiment further provided by the present invention, a clamping groove 209 is provided on one side surface of the clamping part 202, and a clamping block 602 is provided at one end of the locking claw 601, the clamping block 602 is adapted to the position of the clamping groove 209, and a locking rod 603 is fixedly connected to the lower surface of the locking claw 601, and the locking rod 603 abuts against the upper surface of the aluminum alloy plate 302.

[0063] Specifically, when the locking claw 601 is retracted, the locking rod 603 is first pressed down onto the upper surface of the aluminum alloy plate 302 to stabilize the aluminum alloy plate 302, and then the clamping block 602 is driven to clamp into the clamping groove 209, so that the clamping part 202 is fixed on the aluminum alloy plate 302, thereby making the clamping part 202 as the upper mold group, the aluminum alloy plate 302 to be stamped, and the placement plate 3 as the lower mold group fixed and stable for clamping.

[0064] In an embodiment further provided by the present invention, a demoulding rod 606 is disposed on the upper surface of the other end of the locking claw 601 , and the demoulding rod 606 is located below the lower mold groove 303 .

[0065] Specifically, after the stamping is completed, the placement plate 3 is pulled out, and the driving block 402 rises to drive the locking claw 601 to reset and open, so that the lower end of the locking claw 601 rises, and then the demolding rod 606 extends into the lower die groove 303, and the stamped parts in the lower die groove 303 are ejected for auxiliary demolding.

[0066] Furthermore, the connecting seat 6 , the locking claw 601 , the clamping block 602 , the locking rod 603 , the limiting groove 604 , the limiting rod 605 and the demoulding rod 606 are mirror-symmetrical about the mid-vertical line of the aluminum alloy plate 302 .

[0067] In an embodiment further provided by the present invention, a mold clamping groove 208 is provided inside the mold clamping part 202, and the upper ends of the two mold clamping rails 2 are fixedly connected to a top plate 1, and a hydraulic press 101 is provided on the lower surface of the top plate 1. The telescopic end of the hydraulic press 101 is connected to an upper module 102, and the upper module 102 is slidably matched with the mold clamping groove 208.

[0068] Furthermore, a tension spring is provided in the mold track 2, and the tension spring is connected between the top plate 1 and the sliding block 201 to pull the mold clamping part 202 to make its initial position at the top, and after the stamping is completed, drive the mold clamping part 202 to reset.

[0069] Furthermore, the top plate 1 is fixed to the ceiling or to the ground through other connecting parts to support the structure thereon, which is common knowledge for those skilled in the art and will not be elaborated herein.

[0070] A high-precision stamping method, punching with the above-mentioned high-precision stamping die, comprises the following steps:

[0071] S1: placing the aluminum alloy plate 302 on the placement plate 3, and making the aluminum alloy plate 302 abut against one side of the baffle 301;

[0072] S2: Push the placement plate 3 into the push rail 501;

[0073] S3: During the pushing process, the placement plate 3 abuts against the mold clamping bar 207 and continues to be pushed in, so that the mold clamping assembly moves to lower the mold clamping piece 202 for mold clamping;

[0074] S4: Push the mold clamping bar 207 until it rotates, and the placement plate 3 abuts against the driving inclined surface 403 and continues to push in, so that the driving block 402 descends;

[0075] S5: The driving block 402 moves downward to drive the locking assembly to move, so that the locking rod 603 fixes the aluminum alloy plate 302, and the clamping block 602 and the clamping groove 209 are clamped together to assist mold closing;

[0076] S6: Start the hydraulic press 101 to press down the upper die block 102 to punch the aluminum alloy plate 302;

[0077] S7: After the stamping is completed, the placement plate 3 is pulled out to reset the locking assembly. During the resetting process of the locking assembly, the demoulding rod 606 is tilted up to push the aluminum alloy plate 302 out of the lower die groove 303 to assist in demoulding.

[0078] In the present invention, the aluminum alloy plate 302 to be stamped is first placed on the placement plate 3, and the aluminum alloy plate 302 is abutted against one side of the baffle 301, and then the placement plate 3 is pushed into the push slide rail 501. When the placement plate 3 is pushed in, the entry end abuts against the mold strip 207, driving the mold strip 207 to move inward, thereby driving the fourth connecting rod 206 to rotate on the first connecting rod 203, and then pulling the third connecting rod 205 to make it rotate on the second connecting rod 204, pulling the second connecting rod 204, and then making the second connecting rod 204 descend, so that the mold clamping part 202 descends in the mold clamping track 2 for mold clamping; after the placement plate 3 pushes the mold clamping bar 207 to move it to a certain angle, the lower edge of the placement plate 3 abuts against the driving inclined surface 403, thereby pressing the driving block 402 downward to make it slide downward in the support track 4, and during the pressing process of the driving block 402, the mold strip 207 is still being pushed so that the subsequent mold clamping and locking are carried out synchronously; when the driving block 402 slides down , the connecting seat 6 is lowered accordingly, thereby driving the locking claw 601 to be retracted. When retracting, the locking rod 603 is first pressed down to the upper surface of the aluminum alloy plate 302 to stabilize the aluminum alloy plate 302, and then the clamping block 602 is driven to be clamped into the clamping groove 209, so that the mold clamping piece 202 is fixed on the aluminum alloy plate 302, so that the mold clamping piece 202 as the upper mold assembly, the aluminum alloy plate 302 to be stamped, and the placing plate 3 as the lower mold assembly are fixed and stabilized. After the mold closing is completed, the hydraulic press 101 is started to press down the upper mold block 102 to punch the aluminum alloy plate 302 so that the aluminum alloy plate 302 is punched into the shape of the lower mold groove 303; after the stamping is completed, the placement plate 3 is pulled out, and the driving block 402 rises to drive the locking claw 601 to reset and open, so that the lower end of the locking claw 601 rises, and then the demolding rod 606 extends into the lower mold groove 303, and the stamped parts in the lower mold groove 303 are ejected for auxiliary demolding.

[0079] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-precision stamping die, comprising a push slide rail (501), characterized in that: A placement plate (3) is slidably disposed in the pushing slide rail (501), and an aluminum alloy plate (302) is placed on the upper surface of the placement plate (3); It also comprises two mold clamping rails (2) and a driving block (402), wherein a mold clamping assembly is slidably arranged on the mold clamping rails (2), and a locking assembly is arranged on the driving block (402); During the process of pushing the placement plate (3) into the push rail (501), the mold closing component is driven to move to clear foreign matter on the push rail (501) while closing the mold, and the locking component is synchronously driven to lock the aluminum alloy plate (302) while assisting in closing the mold. After the stamping is completed, during the process of pulling out the placement plate (3), the locking component is driven to reset and eject the aluminum alloy plate (302) for demolding.

2. A high-precision stamping die according to claim 1, characterized in that: Two sliding blocks (201) are slidably connected in the two mold clamping rails (2), respectively, and a mold clamping part (202) is fixedly connected between the two sliding blocks (201).

3. A high-precision stamping die according to claim 2, characterized in that: The mold clamping assembly comprises a first connecting rod (203) fixedly connected to a side surface of a mold clamping track (2), and one end of the first connecting rod (203) is rotatably connected to a fourth connecting rod (206), and one side surface of the mold clamping part (202) is fixedly connected to a second connecting rod (204), and one end of the second connecting rod (204) is rotatably connected to a third connecting rod (205), and one end of the third connecting rod (205) is rotatably connected to the middle part of the fourth connecting rod (206), and one end of the fourth connecting rod (206) is fixedly connected to a mold clamping strip (207).

4. A high-precision stamping die according to claim 3, characterized in that: A lower die groove (303) is provided in the middle of the placement plate (3), a baffle (301) is fixedly connected to the upper surface of the placement plate (3), and one side surface of the aluminum alloy plate (302) abuts against one side surface of the baffle (301).

5. A high-precision stamping die according to claim 4, characterized in that: It also comprises two support rails (4), two sliding plates (401) are slidably connected in the two support rails (4), the driving block (402) is fixedly connected between the two sliding plates (401), a driving inclined surface (403) is provided on one side of the upper surface of the driving block (402), and a connecting plane (404) is provided on the other side of the upper surface of the driving block (402).

6. A high-precision stamping die according to claim 5, characterized in that: The locking assembly comprises a connecting seat (6) fixedly connected to the connecting plane (404), and a locking claw (601) is rotatably connected inside the connecting seat (6), and a limiting groove (604) is provided in the middle of the locking claw (601), and a limiting rod (605) is fixedly connected to the surface of one side of the support rail (4), and one end of the limiting rod (605) is arranged inside the limiting groove (604) and slidably cooperates with the limiting groove (604).

7. A high-precision stamping die according to claim 6, characterized in that: A clamping groove (209) is provided on one side surface of the clamping part (202); a clamping block (602) is provided at one end of the locking claw (601); the clamping block (602) is adapted to the position of the clamping groove (209); a locking rod (603) is fixedly connected to the lower surface of the locking claw (601); and the locking rod (603) abuts against the upper surface of the aluminum alloy plate (302).

8. A high-precision stamping die according to claim 7, characterized in that: A demoulding rod (606) is provided on the upper surface of the other end of the locking claw (601), and the demoulding rod (606) is located below the lower mold groove (303).

9. A high-precision stamping die according to claim 8, characterized in that: A mold clamping groove (208) is provided inside the mold clamping part (202); the upper ends of the two mold clamping rails (2) are fixedly connected to a top plate (1); a hydraulic press (101) is provided on the lower surface of the top plate (1); the telescopic end of the hydraulic press (101) is connected to an upper module (102); and the upper module (102) is slidably matched with the mold clamping groove (208).

10. A high-precision stamping method, punching by the high-precision stamping die according to any one of claims 1 to 9, characterized in that: The steps include: S1: placing the aluminum alloy plate (302) on the placement plate (3), and making the aluminum alloy plate (302) abut against one side of the baffle (301); S2: Push the placement plate (3) into the push slide rail (501); S3: During the pushing process, the placement plate (3) abuts against the mold clamping bar (207) and is continuously pushed in, so that the mold clamping assembly moves to lower the mold clamping part (202) for mold clamping; S4: Push the mold clamping bar (207) until it rotates, and the placement plate (3) abuts against the driving inclined surface (403) and continues to push in, so that the driving block (402) descends; S5: The driving block (402) descends to drive the locking assembly to move, so that the locking rod (603) fixes the aluminum alloy plate (302), and the clamping block (602) and the clamping groove (209) are clamped together to assist mold closing; S6: starting the hydraulic press (101) to press down the upper die block (102) to punch the aluminum alloy plate (302); S7: After the stamping is completed, the placement plate (3) is pulled out to reset the locking assembly. During the resetting process of the locking assembly, the demoulding rod (606) is tilted up to push the aluminum alloy plate (302) out of the lower die groove (303) to assist in demoulding.

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