High-precision stamping die

Abstract

The utility model discloses a high-precision stamping die in the technical field of automobile part processing, which comprises a base, a lower die mounted at the top of the base, a support mounted at the top of the base, two cylinders mounted at the top of the support, push rods mounted at the bottoms of the cylinders, and movable blocks welded at the bottoms of the push rods. An upper die is installed at the bottom of the movable block, four positioning rods can limit the movable block to prevent the upper die at the bottom of the movable block from deviating, a lower die and the upper die are closed to conduct stamping machining on a workpiece, and the problems that the die is prone to deviating in the moving process, the workpiece limiting stability is low, and the machining precision is high are solved. The problems that an existing die is complex in disassembly, assembly and replacement operation, and the machining precision and practicability of the die on the workpiece are affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts processing, in particular to a high-precision stamping die. Background Art

[0002] Auto parts are the various units that make up the entire car and are products that serve the car. There are many types of auto parts. Auto parts are usually processed using stamping dies during production and processing. Stamping dies are special process equipment that processes materials (metal or non-metal) into parts (or semi-finished products) during cold stamping. The die installed on the press is used to apply pressure to the material to cause it to separate or plastically deform. Currently, when the stamping die is used to process the workpiece, the die or the workpiece is easily offset due to vibration, resulting in inaccurate stamping of the workpiece.

[0003] When the mold moves up and down to perform stamping on the workpiece, the mold is prone to offset during the movement, and the workpiece limit stability is low, which can easily cause the workpiece to vibrate or offset. In addition, the existing mold is easily damaged during the stamping process and needs to be repaired or replaced in time. The disassembly and replacement operations of the existing mold are relatively cumbersome, which affects the accuracy and practicality of the mold in processing the workpiece. Therefore, those skilled in the art provide a high-precision stamping mold to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the present invention is to provide a high-precision stamping die to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a high-precision stamping die, comprising a base, a lower die mounted on the top of the base, a bracket mounted on the top of the base, two cylinders mounted on the top of the bracket, a push rod mounted on the bottom of the cylinder, a movable block welded to the bottom of the push rod, and an upper die mounted on the bottom of the movable block;

[0006] Two sets of locking parts are installed between the upper mold and the movable block, and limiting parts are installed on both sides of the movable block. The lower mold and the base are installed and fixed by multiple bolts, and the upper mold is movably connected to the movable block.

[0007] Preferably: the locking member includes a fixing groove opened at the bottom of the movable block, the top of the upper mold is connected to a fixing part, a fixing frame is installed on the top of the movable block and near both sides, two guide rods are installed on the inside of the fixing frame, a first spring is sleeved on the outside of the guide rod, a sliding plate is slidably connected to the inside of the fixing frame and located on the outside of the guide rod, the guide rod passes through the sliding plate and is slidably connected to it, and both ends of the first spring are fixedly connected to the fixing frame and the sliding plate respectively.

[0008] Preferably, the locking member further comprises a pull plate fixedly connected to the top of the sliding plate, a locking block is connected to the bottom of the sliding plate, locking grooves are respectively provided on the top of the fixed portion and near both sides, and the locking block is movably connected to the movable block.

[0009] Preferably: the limiting member includes movable through holes respectively opened at both ends of the movable block, a sliding block is slidably connected to the inner side of the movable through hole, a sliding rod passes through the inner side of the sliding block, the bottom of the sliding rod is connected to a fixed plate, one side of the fixed plate is connected to a pad, the sliding rod passes through the sliding block and is slidably connected to it, and the sliding block is slidably connected to the movable through hole.

[0010] Preferably, a screw is installed inside the movable through hole, a second spring is sleeved outside the sliding rod, the screw passes through the sliding block and is screwed thereto, and both ends of the second spring are fixedly connected to the sliding block and the fixed plate respectively.

[0011] Preferably, a positioning bar is connected to the top of the inner side of the fixing groove, a positioning groove is opened on the top of the fixing portion, and the positioning bar is movably connected to the positioning groove.

[0012] Preferably, positioning rods are installed on four sides of the top of the movable block, and the positioning rods pass through the bracket and are slidably connected to the bracket.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In the utility model, a lower mold, a bracket, a movable block and an upper mold are provided. The base supports the cylinder upward through the bracket. The two cylinders can simultaneously drive the upper mold at the bottom of the movable block to move up and down through the push rod. The lower mold and the upper mold are closed to perform stamping processing on the workpiece. The upper mold can be disassembled or replaced by using a locking piece, so that the upper mold or the lower mold can be disassembled and repaired when it is damaged. The workpiece can be clamped and limited by using a limit piece to prevent the workpiece from deflecting.

[0015] 2. In the utility model, a fixing groove, a fixing part, a first spring, a sliding plate, a pull plate and a locking block are provided. The cross-section of the fixing part and the fixing groove is T-shaped. The fixing groove can support and fix the upper mold through the fixing part. The guide rod can guide the sliding plate to prevent the guide rod from deviating. The spring on the outside of the guide rod can squeeze the sliding plate downward. The pull plate can drive the locking block at the bottom of the sliding plate to move up and down. The locking block can pass through the movable block and enter the locking groove at the top of the fixing part, thereby improving the stability and convenience of installing and disassembling the upper mold.

[0016] 3. In the utility model, a sliding block, a fixed plate, a pad, a screw and a second spring are provided. The rotation of the screw in the movable through hole can drive the sliding block to move in the movable through hole. The second spring at the bottom of the sliding block can press the fixed plate downward. The pad on one side of the fixed plate can clamp and limit the workpiece to prevent the workpiece from being shifted due to vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a left-side cutaway perspective view of the overall structure of the utility model;

[0019] Figure 3 The overall structure of the utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 The overall structure of the utility model Figure 2 Enlarged view of point B in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of the sliding block, sliding rod, fixing plate, backing plate, screw rod and second spring in the overall structure of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the movable block, upper mold, fixed groove, fixed part, positioning strip and positioning groove in the overall structure of the utility model.

[0023] In the figure: 1. Base; 2. Lower mold; 3. Bracket; 4. Cylinder; 5. Push rod; 6. Movable block; 7. Upper mold; 8. Fixed groove; 9. Fixed part; 10. Fixed frame; 11. Guide rod; 12. First spring; 13. Sliding plate; 14. Pull plate; 15. Locking block; 16. Locking groove; 17. Movable through hole; 18. Sliding block; 19. Sliding rod; 20. Fixed plate; 21. Pad; 22. Screw; 23. Second spring; 24. Positioning bar; 25. Positioning groove; 26. Positioning rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1 to 6In the embodiment of the utility model, a high-precision stamping die includes a base 1, a lower die 2 is installed on the top of the base 1, a bracket 3 is installed on the top of the base 1, two cylinders 4 are installed on the top of the bracket 3, a push rod 5 is installed at the bottom of the cylinder 4, a movable block 6 is welded to the bottom of the push rod 5, an upper die 7 is installed at the bottom of the movable block 6, two groups of locking parts are installed between the upper die 7 and the movable block 6, limiting parts are installed on both sides of the movable block 6, positioning rods 26 are installed around the top of the movable block 6, the positioning rods 26 pass through the bracket 3 and are slidably connected thereto, the lower die 2 and the base 1 are installed and fixed by multiple bolts, and the upper die 7 is movably connected to the movable block 6.

[0026] When in use, the base 1 supports the cylinder 4 upward through the bracket 3. The two cylinders 4 can simultaneously drive the upper mold 7 at the bottom of the movable block 6 to move up and down through the push rod 5. The four positioning rods 26 can limit the movable block 6 to prevent the upper mold 7 at the bottom of the movable block 6 from shifting. The lower mold 2 and the upper mold 7 are closed to stamp the workpiece. The upper mold 7 can be disassembled or replaced by using the locking parts, so that the upper mold 7 or the lower mold 2 can be disassembled and repaired when it is damaged. The workpiece can be clamped and limited by the limiting parts to prevent the workpiece from shifting.

[0027] In one embodiment, specifically, the locking member includes a fixing groove 8 opened at the bottom of the movable block 6, a fixing part 9 is connected to the top of the upper mold 7, a fixing frame 10 is installed on the top of the movable block 6 and near both sides, two guide rods 11 are installed on the inside of the fixing frame 10, a first spring 12 is fitted on the outside of the guide rod 11, a sliding plate 13 is slidably connected to the inside of the fixing frame 10 and located on the outside of the guide rod 11, the locking member also includes a pull plate 14 fixedly connected to the top of the sliding plate 13, a locking block 15 is connected to the bottom of the sliding plate 13, a locking groove 16 is respectively opened at the top of the fixing part 9 and near both sides, a positioning bar 24 is connected to the top of the inner side of the fixing groove 8, a positioning groove 25 is opened at the top of the fixing part 9, the positioning bar 24 is movably connected to the positioning groove 25, the locking block 15 is movably connected to the movable block 6, the guide rod 11 passes through the sliding plate 13 and is slidably connected to it, and the two ends of the first spring 12 are fixedly connected to the fixing frame 10 and the sliding plate 13 respectively.

[0028] Among them, the cross-sections of the fixing part 9 and the fixing groove 8 are T-shaped, and the cross-sections of the positioning strip 24 and the positioning groove 25 are both "convex"-shaped, which increases the contact area between the positioning strip 24 and the positioning groove 25. The positioning strip 24 can be used to position the fixing part 9 to prevent the upper mold 7 from shifting or shaking. The fixing groove 8 can support and fix the upper mold 7 through the fixing part 9. The guide rod 11 can guide the sliding plate 13 to prevent the guide rod 11 from shifting. The spring on the outside of the guide rod 11 can squeeze the sliding plate 13 downward. The pull plate 14 can drive the locking block 15 at the bottom of the sliding plate 13 to move up and down. The locking block 15 can pass through the movable block 6 and enter the locking groove 16 at the top of the fixing part 9, thereby improving the stability and convenience of installing and disassembling the upper mold 7.

[0029] Furthermore, the limiting member includes a movable through hole 17 respectively opened at both ends of the movable block 6, a sliding block 18 is slidably connected to the inside of the movable through hole 17, a sliding rod 19 is passed through the inside of the sliding block 18, the bottom of the sliding rod 19 is connected to a fixed plate 20, and a pad 21 is connected to one side of the fixed plate 20, a screw 22 is installed on the inside of the movable through hole 17, and a second spring 23 is sleeved on the outside of the sliding rod 19, the screw 22 passes through the sliding block 18 and is screwed thereto, and the two ends of the second spring 23 are fixedly connected to the sliding block 18 and the fixed plate 20 respectively, the sliding rod 19 passes through the sliding block 18 and is slidably connected thereto, and the sliding block 18 is slidably connected to the movable through hole 17.

[0030] In one embodiment, specifically, the rotation of the screw 22 in the movable through hole 17 can drive the sliding block 18 to move in the movable through hole 17, and the second spring 23 at the bottom of the sliding block 18 can press the fixed plate 20 downward, and the pad 21 on one side of the fixed plate 20 can clamp and limit the workpiece to prevent the workpiece from being offset due to vibration.

[0031] The working principle of this utility model:

[0032] First, place the workpiece on the top of the lower mold 2, and then start the cylinder 4, so that it drives the upper mold 7 at the bottom of the movable block 6 to move downward through the push rod 5. At the same time, the four positioning rods 26 limit the movable block 6, and then the second spring 23 at the bottom of the sliding block 18 squeezes the fixed plate 20 downward, and then the screw 22 is rotated in the movable through hole 17, so that it drives the sliding block 18 to move in the movable through hole 17, so that the sliding block 18 drives the pad 21 on one side of the fixed plate 20 through the sliding rod 19 to clamp and limit the workpiece, and then the upper mold 7 punches the workpiece on the top of the lower mold 2.

[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-precision stamping die, comprising a base (1), characterized in that: A lower mold (2) is installed on the top of the base (1), a bracket (3) is installed on the top of the base (1), two cylinders (4) are installed on the top of the bracket (3), a push rod (5) is installed on the bottom of the cylinder (4), a movable block (6) is welded to the bottom of the push rod (5), and an upper mold (7) is installed on the bottom of the movable block (6); Two sets of locking parts are installed between the upper mold (7) and the movable block (6), and limiting parts are respectively installed on both sides of the movable block (6). The lower mold (2) and the base (1) are fixed by multiple bolts, and the upper mold (7) and the movable block (6) are movably connected.

2. A high-precision stamping die according to claim 1, characterized in that: The locking member includes a fixing groove (8) opened at the bottom of the movable block (6), a fixing portion (9) is connected to the top of the upper mold (7), a fixing frame (10) is installed on the top of the movable block (6) and close to both sides, two guide rods (11) are installed on the inner side of the fixing frame (10), a first spring (12) is sleeved on the outer side of the guide rod (11), a sliding plate (13) is slidably connected to the inner side of the fixing frame (10) and located on the outer side of the guide rod (11), the guide rod (11) passes through the sliding plate (13) and is slidably connected thereto, and the two ends of the first spring (12) are fixedly connected to the fixing frame (10) and the sliding plate (13) respectively.

3. A high-precision stamping die according to claim 2, characterized in that: The locking member further comprises a pull plate (14) fixedly connected to the top of the sliding plate (13); a locking block (15) is connected to the bottom of the sliding plate (13); locking grooves (16) are respectively provided at the top of the fixed portion (9) and close to both sides; the locking block (15) is movably connected to the movable block (6).

4. A high-precision stamping die according to claim 3, characterized in that: The limiting member comprises movable through holes (17) respectively opened at both ends of the movable block (6); a sliding block (18) is slidably connected to the inner side of the movable through hole (17); a sliding rod (19) is passed through the inner side of the sliding block (18); a fixed plate (20) is connected to the bottom of the sliding rod (19); a pad (21) is connected to one side of the fixed plate (20); the sliding rod (19) passes through the sliding block (18) and is slidably connected thereto; and the sliding block (18) is slidably connected to the movable through hole (17).

5. The high-precision stamping die according to claim 4, characterized in that: A screw rod (22) is installed inside the movable through hole (17), and a second spring (23) is sleeved on the outside of the sliding rod (19). The screw rod (22) passes through the sliding block (18) and is screwed thereto. The two ends of the second spring (23) are fixedly connected to the sliding block (18) and the fixed plate (20) respectively.

6. The high-precision stamping die according to claim 2, characterized in that: The top of the inner side of the fixing groove (8) is connected with a positioning strip (24), the top of the fixing portion (9) is provided with a positioning slot (25), and the positioning strip (24) is movably connected to the positioning slot (25).

7. The high-precision stamping die according to claim 2, characterized in that: Positioning rods (26) are respectively installed around the top of the movable block (6), and the positioning rods (26) pass through the bracket (3) and are slidably connected thereto.

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