Automobile spring clamping piece stamping die

Abstract

The utility model relates to a spring clip stamping die for an automobile, which belongs to the technical field of spring clip stamping and is characterized in that a die handle is fixedly arranged at the center of the top of an upper top plate through a screw, a fixing plate is arranged below the upper top plate through a screw, and an upper die plate is arranged below the fixing plate through a screw with a spring; a punch is fixedly arranged below the upper die plate through a screw, and a guide sleeve is fixedly embedded below the upper top plate. A guide post and a lower die are respectively arranged above the lower bottom plate through screws; an upper clamping piece, a double-helix spring and a lower clamping piece are fixedly arranged at the bottom of the lower bottom plate through screw rods; the punch and the lower die form a spring clamping piece punching cavity; a 200-ton oil press is used for matched production, single-person operation is achieved, the single-piece production cycle is 25 seconds, the spring clamping piece formed through punching is flawless in appearance and good in smoothness, the drawing design requirement is met, the subsequent paint spraying or electroplating process is facilitated, the punch and the lower die are made of T10A carbon tool steel materials, and the production life of the die can reach 100 thousand die times.

Description

Technical Field

[0001] The utility model relates to a spring clip stamping die for automobiles, belonging to the technical field of spring clip stamping. Background Art

[0002] The spring clip must maintain the same positioning reference as the workpiece or tool, such as the spindle. Relative movement between the spring clip and the workpiece or tool will result in incorrect part processing. The relative rotation or relative axial movement of the spring clip and the workpiece or tool will affect the consistency of the size and geometric accuracy of the processed workpiece. Although the spring clip is small, it does play an important role in the machine tool industry. It can accurately position and clamp the workpiece or tool, has the function of resisting torque and bearing cutting forces from multiple directions, has the function of increasing the driving force and converting the driving force into the clamping force of the workpiece or tool, has the function of quickly loosening the workpiece or tool, has high repeatability without reducing the processing accuracy and preventing the workpiece from being damaged, has the ability to work in a wide range of spindle speeds with only minimal clamping force loss, and has the minimum moment of inertia in high-speed cutting. The design and use of spring clips is a wide-ranging field. It needs to correspond to a variety of machine tool series, and includes products designed to reflect its own different styles and characteristics with the machine tool, so the total number has reached tens of thousands. It can position and clamp workpieces or tools of any shape, including square or hexagonal workpieces. The clamping force is the force applied by the machine tool to the workpiece through the spring clamp.

[0003] A Chinese invention patent discloses a low-noise stamping die with the application publication number CN109093000A. The structure is described as follows: the upper die base 1 is provided with a punch 3 fixedly connected to the upper die base 1 and a stripping plate 4 movably connected to the upper and lower die base 1, an elastic element 5 is provided between the stripping plate 4 and the upper die base 1 for pushing the stripping plate 4 to perform a stripping action during stripping, a stripping hole 7 for passing through a punch 6 is provided on the stripping plate 4, a die 8 is provided on the lower die base 2, and the die 8 is fixedly connected to a die fixing plate 9 of the lower die base 2, and an elastic silencer 10 for surrounding the punch 6 is provided at the lower end of the stripping hole 7, and the lower end surface of the elastic silencer 10 contacts with the upper plane of the feed plate 11 during stamping. The elastic silencer ring 10 is a dense microporous elastic silencer ring, the elastic silencer ring 12 is a dense microporous elastic silencer ring, and the first elastic silencer frame 13 and the second elastic silencer frame 14 are both dense microporous elastic silencer frames. During stamping, the impact sound waves enclosed in the elastic silencer ring 10, the elastic silencer ring 12 or the elastic silencer frames 13 and 14 are attenuated by the dense micropores; at the same time, the elastic silencer ring 10, the elastic silencer ring 12, the elastic silencer frames 13 and 14 and the sound absorbing plate 15 all have the function of sound absorption, and can well absorb the sound waves transmitted through the feed plate 11, the discharge plate 4 and the die fixing plate 9.

[0004] The disadvantage of this patent is that the elastic element 5 will generate noise when the stripper plate 4 is reset upward. The stamping die is operated in cooperation with a hydraulic press. The hydraulic press will generate oil pump operation noise during operation. The oil pump will generate noise when injecting hydraulic oil into the rubber oil pipe. The noise of the surrounding production environment cannot be avoided, which is not practical. Adding elastic silencer 10, elastic silencer ring 12, elastic silencer frame 13, 14 and sound absorbing plate 15 to the stripper plate 4 and the die fixing plate 9, and drilling too many screw holes will cause the stripper plate 4 to crack in a short period of time, reducing the service life of the mold. Adding elastic silencer 10 to the die fixing plate 9 and the stripper plate 4 will cause gaps when the die fixing plate 9 and the stripper plate 4 are attached together, which will cause local deformation of parts and components and fail to meet the requirements of the design drawings. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the purpose of the utility model is to provide a spring clip stamping die for automobiles, which is produced by a 200-ton hydraulic press and operated by one person. The single-piece production cycle is 25 seconds. The stamped spring clip has no flaws in appearance and good smoothness, meets the design requirements of the drawings, and is conducive to subsequent painting or electroplating processes. The punch and the lower die are made of T10A carbon tool steel material, and the mold production life can reach 100,000 times.

[0006] A spring clip stamping die for automobiles, characterized in that it comprises an upper top plate 3 and a lower bottom plate 9; a die handle 4 is fixedly provided at the top center of the upper top plate 3 by screws, a fixing plate 5 is fixedly provided below the upper top plate 3 by screws, an upper mold plate 1 is provided below the fixing plate 5 by screws with a spring 6, a punch 15 is fixedly provided below the upper mold plate 1 by screws, and a guide sleeve 2 is fixedly embedded below the upper top plate 3; a guide column 8 and a lower mold 14 are respectively provided above the lower bottom plate 9 by screws, and an upper clip 10, a double helical spring 11, and a lower clip 12 are fixedly provided at the bottom of the lower bottom plate 9 by a screw 13;

[0007] The punch 15 and the lower die 14 form a spring clip stamping cavity.

[0008] The punch 15 and the lower die 14 are made of T10A carbon tool steel material.

[0009] The springs 6 are in four groups.

[0010] The guide sleeves 2 are divided into two groups symmetrically on the left and right, and the guide posts 8 are divided into two groups symmetrically on the left and right. The guide sleeves 2 and the guide posts 8 can be slidably matched.

[0011] The upper top plate 3 and the lower bottom plate 9 are made of T10A carbon tool steel material.

[0012] The upper top plate 3 is fixed to the bottom of the middle beam of the center column hydraulic press by bolts and positioning clamps, and the lower bottom plate 9 is fixed above the workbench by bolts and positioning clamps. The punch 15 and the lower die 14 constitute a spring clip stamping cavity. The clip plate 16 is correctly placed in the lower die 14, and the hydraulic press control switch is started. The upper top plate 3 with the punch 15 slowly punches downward into the clip plate 16 in the lower die 14. When the end faces of the upper template 1 and the lower die 14 are tightly attached together, the spring clip 17 is stamped and formed, and then it is brought out upward by the punch 15. The spring clip 17 is manually removed to complete a stamping.

[0013] The spring clip 17 is produced by a 200-ton hydraulic press and is operated by one person. The production cycle of a single piece is 25 seconds. The stamped spring clip 17 has no flaws in appearance and good finish, meets the design requirements of the drawings, and is conducive to the subsequent painting or electroplating process. The punch 15 and the lower die 14 are made of T10A carbon tool steel material, and the mold production life can reach 100,000 molds. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the utility model.

[0015] Figure 2 It is a three-dimensional diagram of the utility model.

[0016] Figure 3 for Figure 1 Local decomposition Figure 1 .

[0017] Figure 4 for Figure 1 Local decomposition Figure 2 .

[0018] Figure 5 It is a three-dimensional view of the clip plate 16.

[0019] Figure 6 It is a three-dimensional view of the spring clip 17 after stamping.

[0020] In the figure: upper template 1, guide sleeve 2, upper top plate 3, die handle 4, fixing plate 5, spring 6, screw 7, guide column 8, lower base plate 9, upper clamping piece 10, double helical spring 11, lower clamping piece 12, screw 13, lower die 14, punch 15. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] As attached Figure 1-4 As shown, a spring clip stamping die for automobiles comprises an upper top plate 3 and a lower bottom plate 9; the upper top plate 3 and the lower bottom plate 9 are made of 45# steel material, a die handle 4 is fixed by screws at the top center position of the upper top plate 3, a fixing plate 5 is fixed by screws below the upper top plate 3, an upper mold plate 1 is provided below the fixing plate 5 by four groups of screws 7 with springs 6, which is used to mitigate and eliminate the internal stress caused by the punch 15 impacting the lower mold 14, a punch 15 is fixed by screws below the upper mold plate 1, and a guide sleeve 2 is fixedly embedded below the upper top plate 3; guide columns 8 and a lower mold 14 are respectively provided above the lower bottom plate 9 by screws, an upper clip 10, a double helical spring 11, and a lower clip 12 are fixed by screws 13 at the bottom of the lower bottom plate 9; the internal stress of the lower bottom plate 9 caused by the punch 15 impacting the lower mold 14 downward is mitigated.

[0023] The punch 15 and the lower die 14 constitute a spring clip stamping cavity, and the punch 15 and the lower die 14 are made of T10A carbon tool steel material. The heat treatment process of T10A carbon tool steel is: 760-810℃ water or oil quenching, 160-180℃ tempering, and hardness 59-62HRC.

[0024] The guide sleeves 2 are divided into two groups symmetrically on the left and right, and the guide posts 8 are divided into two groups symmetrically on the left and right. The guide sleeves 2 and the guide posts 8 can be slidably matched.

[0025] The upper top plate 3 is fixed to the bottom of the middle beam of the center column hydraulic press by bolts and positioning clamps, and the lower bottom plate 9 is fixed above the workbench by bolts and positioning clamps. The punch 15 and the lower die 14 constitute a spring clip stamping cavity. When in use, the clip plate 16 is correctly placed in the lower die 14, and the hydraulic press control switch is started. The upper top plate 3 with the punch 15 slowly punches downward into the clip plate 16 in the lower die 14. After the end faces of the upper template 1 and the lower die 14 are tightly attached together, the spring clip 17 is stamped and formed, and then it is brought out upward by the punch 15. The spring clip 17 is manually removed to complete a stamping.

[0026] As attached Figure 5 As shown, a perspective view of the clip plate 16 is shown.

[0027] As attached Figure 5 As shown, a three-dimensional view of the spring clip 17 after stamping.

[0028] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A stamping die for a spring clip for an automobile, characterized in that: It comprises an upper top plate (3) and a lower bottom plate (9); a die handle (4) is fixedly provided at the top center position of the upper top plate (3) by screws, a fixing plate (5) is fixedly provided below the upper top plate (3) by screws, an upper mold plate (1) is provided below the fixing plate (5) by screws (7) with a spring (6), a punch (15) is fixedly provided below the upper mold plate (1) by screws, and a guide sleeve (2) is fixedly embedded below the upper top plate (3); a guide column (8) and a lower mold (14) are respectively provided above the lower bottom plate (9) by screws, and an upper clamp (10), a double helical spring (11) and a lower clamp (12) are fixedly provided at the bottom of the lower bottom plate (9) by a screw (13); the punch (15) and the lower mold (14) constitute a spring clamp stamping cavity.

2. The stamping die for a spring clip for an automobile according to claim 1, characterized in that: The punch (15) and the lower die (14) are made of T10A carbon tool steel material.

3. The stamping die for a spring clip for automobile according to claim 1, characterized in that: The springs (6) are in four groups.

4. The stamping die for a spring clip for an automobile according to claim 1, characterized in that: The guide sleeves (2) are divided into two groups symmetrically arranged on the left and right, and the guide posts (8) are divided into two groups symmetrically arranged on the left and right. The guide sleeves (2) and the guide posts (8) can be slidably matched.

5. The stamping die for a spring clip for automobile according to claim 1, characterized in that: The upper top plate (3) and the lower bottom plate (9) are made of T10A carbon tool steel material.

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