Stamping die for automobile washer

Abstract

The utility model relates to a stamping die, in particular to a stamping die of an automobile washer. The stamping die is composed of an upper die body and a lower die body. The upper die body comprises an upper die base, a stamping head, a stamping core rod and a stamping sleeve. The lower mold comprises a bottom plate, a guide plate, a limiting plate, a limiting sleeve and a demolding core rod which are sequentially arranged from bottom to top. According to the stamping die, the stamping sleeve is matched with the stamping die hole to downwards stamp the base plate, so that side plates are formed around the base plate; the base plate can be stamped downwards by matching the stamping core rod with the lantern ring forming hole, so that a lantern ring is formed in the middle of the base plate; the side plates and the lantern rings are formed in a one-time punching mode in the punching process, working procedures can be effectively reduced, machines can be reduced, and therefore the production cost can be greatly reduced, and the production efficiency is improved. The problems that existing stamping equipment is high in production cost and low in production efficiency are solved.

Description

Technical Field

[0001] The utility model relates to a stamping die, in particular to a stamping die for automobile washers. Background Art

[0002] Automobile washers are spring washers used in automobiles for connection and fastening. An existing automobile washer is composed of a square outer and round inner pad, side panels arranged around the pad, and a collar extending downward from the center of the pad (see attached). Figure 1 , Attachment Figure 2 ). Since the side plate and the collar need to be formed by stamping respectively, and since the stamping positions of the side plate and the collar are different, the existing stamping equipment can only stamp the pad multiple times to form the washers, such as stamping the side plate on the pad first and then stamping the collar, or stamping the collar on the pad first and then stamping the side plate on the collar. The stamping process not only requires different stamping dies, resulting in high production costs, but also requires switching between different machines, resulting in low production efficiency. Therefore, it is necessary to design a stamping die for automotive washers to solve the above problems. Summary of the invention

[0003] The utility model aims to provide a stamping die for automobile washers which can be stamped and formed in one time, greatly reduce production costs and effectively improve production efficiency in view of the shortcomings of the prior art.

[0004] The technical solution of the utility model is:

[0005] A stamping die for automobile washers, which is composed of an upper die and a lower die, and is characterized in that: the upper die comprises an upper die seat, a stamping head, a stamping core rod and a square stamping sleeve, the upper die seat is provided with a stamping head, the bottom center of the stamping head is provided with a stamping core rod, and the stamping sleeve is sleeved on the stamping core rod; a square guide hole is provided on the stamping head outside the stamping core rod, and the end of the guide hole is slidably connected with the stamping sleeve;

[0006] The lower die comprises a bottom plate, a guide plate, a limit plate, a limit sleeve and a demoulding core rod which are arranged in sequence from bottom to top; a square stamping die hole is arranged on the guide plate, a square limit sleeve is movably inserted in the stamping die hole, a ring forming hole is arranged on the limit sleeve, and a demoulding core rod is inserted in the ring forming hole.

[0007] The top and bottom plates of the guide hole are respectively provided with sleeve spring assembly holes evenly distributed in a ring shape, a core rod spring assembly hole is provided at the center of the bottom plate between the sleeve spring assembly holes, and limiting pins are respectively inserted into the core rod spring assembly hole and the sleeve spring assembly hole through limiting flanges, and the ends of the limiting pins are fixedly connected to the stamping sleeve, the limiting sleeve, and the demoulding core rod; reset springs are respectively mounted on the limiting pins between the stamping sleeve, the limiting sleeve, the demoulding core rod and the limiting flange.

[0008] Limiting guide plates are respectively arranged on both sides of the stamping sleeve.

[0009] The limiting plate is provided with a square pad limiting groove, and the pad limiting groove is surrounded by side plate limiting grooves.

[0010] A "Z"-shaped demoulding scraper is symmetrically mounted on the limiting plate, and the end of the demoulding scraper is slidably connected with the stamping sleeve.

[0011] The beneficial effects of the utility model are:

[0012] The stamping die of the automobile washer can punch down the pad through the stamping sleeve and the stamping die hole, so as to form the side plate around the pad; the stamping core rod can punch down the pad through the sleeve forming hole, so as to form a sleeve in the middle of the pad; the side plate and the sleeve are formed in one stamping process, which can effectively reduce the number of processes and machines, thereby greatly reducing the production cost and improving the production efficiency. It solves the problem of high production cost and low production efficiency of existing stamping equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a top-down schematic diagram of Huasi;

[0014] Figure 2 yes Figure 1 Schematic diagram of the structure in the middle AA direction;

[0015] Figure 3 It is a structural schematic diagram of the utility model;

[0016] Figure 4 It is a bottom view schematic diagram of the upper die of the utility model;

[0017] Figure 5 yes Figure 4 Schematic diagram of the structure in the middle BB direction;

[0018] Figure 6 It is a bottom view schematic diagram of the punching head of the utility model;

[0019] Figure 7 yes Figure 6 Schematic diagram of the structure in the CC direction;

[0020] Figure 8 It is a top view schematic diagram of the lower die of the utility model;

[0021] Fig. 9 yes Figure 8 Schematic diagram of the structure in the middle DD direction;

[0022] Fig.10 It is a structural schematic diagram of the limiting sleeve of the utility model;

[0023] Fig.11 It is a top view schematic diagram of the guide plate of the utility model;

[0024] Fig.12 It is a top view schematic diagram of the bottom plate of the utility model;

[0025] Fig.13 It is a cross-sectional schematic diagram of the bottom plate of the utility model;

[0026] Fig.14 It is a structural schematic diagram of the limiting plate of the utility model.

[0027] In the figure: 1, upper die seat, 2, punch head, 3, punch core rod, 4, punch sleeve, 5, guide hole, 6, bottom plate, 7, guide plate, 8, limit plate, 9, limit sleeve, 10, demoulding core rod, 11, punching die hole, 12, sleeve ring forming hole, 13, sleeve spring assembly hole, 14, core rod spring assembly hole, 15, limit flange, 16, limit pin, 17, return spring, 18, limit guide plate, 19, pad limit groove, 20, side plate limit groove, 21, demoulding scraper, 22, pad, 23, side plate, 24, sleeve ring. DETAILED DESCRIPTION

[0028] The stamping die of the automobile washer consists of an upper die and a lower die, and the washer is formed by stamping the material placed on the lower die through the upper die.

[0029] The upper die includes an upper die base 1, a punch head 2, a punch core rod 3 and a square punch sleeve 4. The upper die base 1 is provided with a punch head 2. The function of the upper die base 1 is to connect the piston rod of the punching machine through the upper die base 1, and then drive the upper die base 1 to move downward during the downward punching process of the piston rod of the punching machine, thereby driving the punch head 2 to punch downward. A punch core rod 3 is provided at the bottom center of the punch head 2, so that the material is punched downward through the punch core rod 3 to form the collar. A punch sleeve 4 is mounted on the punch core rod 3, so that the material is punched downward through the punch sleeve 4 to form the side plate. A square guide hole 5 is provided on the punch head 2 outside the punch core rod 3, and the guide hole 5 is slidably connected to the punch sleeve 4. The function of the guide hole 5 is, on the one hand, to guide and limit the stamping sleeve 4 through the guide hole 5 in cooperation with the stamping core rod 3, to prevent the stamping sleeve 4 from shifting or rotating during the stamping process, thereby ensuring the accuracy of the stamping and effectively ensuring the yield rate; on the other hand, the stroke of the stamping sleeve 4 is limited by the top depth of the guide hole 5, thereby adjusting the length of the stamping core rod 3 extending out of the stamping sleeve 4, and adjusting the stamping of the stamping core rod 3.

[0030] The lower die includes a bottom plate 6, a guide plate 7, a limit plate 8, a limit sleeve 9 and a demoulding core rod 10 arranged in sequence from bottom to top. A square stamping die hole 11 is arranged on the guide plate 7, so that when the stamping sleeve 4 stamps the material downward, the material is squeezed downward into the stamping die hole 11, and then the stamping die hole 11 cooperates with the stamping sleeve 4 to extrude and deform the material, so that the material is bent upward to form a side plate. A square limit sleeve 9 is movably inserted in the stamping die hole 11, so that the material is clamped by the limit sleeve 9 and the stamping sleeve 4, ensuring that the material clamped between the limit sleeve 9 and the stamping sleeve 4 is not easily deformed during the stamping process of the stamping sleeve 4, and ensuring that the pad is flat after forming; at the same time, the limit sleeve 9 can further limit the stroke of the stamping sleeve 4. The limiting sleeve 9 is provided with a collar forming hole 12. When the punching core rod 3 punches the material downward, the material is squeezed downward into the collar forming hole 12, and then the collar forming hole 12 cooperates with the punching core shaft 3 to squeeze and deform the material, so that the middle part of the material bends downward and expands to form a circular collar extending downward. A demoulding core rod 10 is inserted into the collar forming hole 12 to push the formed collar to move upward during the upward reset process of the demoulding core rod 10, and then the molded washers and the limiting sleeve 9 are demoulded by the demoulding core rod 10; at the same time, the downward stroke of the punching core rod 3 can be limited by the demoulding core rod 10.

[0031] Sleeve spring assembly holes 13 are evenly distributed in a ring shape on the top of the guide hole 5 and the bottom plate 6, and a core rod spring assembly hole 14 is set in the center of the bottom plate 6 between the sleeve spring assembly holes 13. Limiting pins 16 are respectively inserted into the core rod spring assembly hole 14 and the sleeve spring assembly hole 13 through limiting flanges 15, and the ends of the limiting pins 16 are fixedly connected to the stamping sleeve 4, the limiting sleeve 9, and the demolding core rod 10; the limiting pins 16 between the stamping sleeve 4, the limiting sleeve 9, the demolding core rod 10 and the limiting flange 15 are respectively provided with reset springs 17, so that the stamping sleeve 4, the limiting sleeve 9, and the demolding core rod 10 are pushed to reset through the reset spring 17 after the stamping is completed, so that the stamping sleeve 4, the limiting sleeve 9, and the demolding core rod 10 can enter the next working cycle. The function of the limit pin 16 is to limit the initial position of the stamping sleeve 4, the limit sleeve 9, and the demolding core rod 10 through the limit pin 16 and the limit flange 15, so that the bottom end face of the stamping sleeve 4 is flush with the bottom end face of the stamping core rod 3 in the initial state, thereby ensuring that the stamping sleeve 4 can cooperate with the limit sleeve 9 to first clamp the material during the downward stamping process to prevent the material from deformation and displacement; the top end face of the limit sleeve 9 is flush with the top end faces of the demolding core rod 10 and the guide plate 7 respectively, thereby facilitating the positioning of the material when placing the material.

[0032] Limiting guide plates 18 are respectively arranged on both sides of the stamping sleeve 4. The function of the limiting guide plates 18 is, on the one hand, to further limit the stamping sleeve 4 through the limiting guide plates 18, thereby preventing the stamping sleeve 4 from shifting during the downward stamping process; on the other hand, the limiting guide plates 18 cooperate with the lower die to limit the downward movement stroke of the upper die base 1, thereby adjusting the stamping stroke; at the same time, the limiting guide plates 18 abut against the stamping head 2 to fix the stamping head 2 on the upper die base 1.

[0033] The limiting plate 8 is provided with a square pad limiting groove 19 to limit the material in the pad area through the pad limiting groove 19. The pad limiting groove 19 is surrounded by side plate limiting grooves 20 to limit the material in the side plate area through the side plate limiting grooves 20, so that the side plate limiting grooves 20 cooperate with the pad limiting grooves 19 to limit the position of the material, ensuring accurate stamping.

[0034] A "Z"-shaped demoulding scraper 21 is symmetrically mounted on the limit plate 8, and the end of the demoulding scraper 21 is slidably connected to the stamping sleeve 4. The demoulding scraper 21 is used to reset the stamping sleeve 4 upward, and the side plate covered on the stamping sleeve 4 is pushed downward by the demoulding scraper 21, thereby pushing the molded washer and the stamping sleeve 4 to be demoulded.

[0035] When the stamping die of the automobile washer is working, the material is placed on the lower die limit plate 8 so that the material is stuck on the pad limit groove 19 and the side plate limit groove 20. After the material is in place, the stamping machine is started, and the stamping machine drives the upper die to move downward. During the downward movement of the upper die, the stamping sleeve 4 and the stamping core rod 3 of the upper die first contact the material, and the stamping sleeve 4 cooperates with the limit sleeve 9 to clamp the material. As the upper die continues to move downward, the stamping sleeve 4 squeezes the material downward and presses the material into the stamping die hole 11 of the guide plate 7, so that the material is bent upward around to form a side plate. During the downward movement of the stamping sleeve 4, the stamping sleeve 4 compresses the reset spring 17 to move upward, so that the stamping core rod 3 extends downward relative to the stamping sleeve 4, and the stamping core rod 3 extending downward presses the middle part of the material into the ring forming hole 12 of the limit sleeve 9, so that the middle part of the material is bent downward and expanded to form a ring. After the stamping is completed, the upper die is reset upward. During the reset process, the upper die reset spring 17 pushes the stamping sleeve 4 downward to demold the washer and the stamping core rod 3. During the reset process, the reset spring 17 of the lower die pushes the demolding core rod 10 and the limiting sleeve 9 to reset, thereby pushing the molded washer and the guide plate 7 and the limiting sleeve 9 to demold. After the washer is demolded from the stamping core rod 3, the demolding core rod 10 and the limiting sleeve 9, while the stamping sleeve 4 continues to reset upward, the demolding scraper 21 blocks the washer that goes up with the stamping sleeve 4, so that the washer and the stamping sleeve 4 are demolded. After the washer and the stamping sleeve 4 are demolded, the demolding of the washer is completed.

[0036] The stamping die of the automobile washer can punch down the pad through the stamping sleeve 4 in cooperation with the stamping die hole 11, so as to form side plates around the pad; the stamping core rod 3 can punch down the pad in cooperation with the sleeve forming hole 12, so as to form a sleeve in the middle of the pad; the side plate and the sleeve are formed in one stamping process, which can effectively reduce the number of processes and machines, thereby greatly reducing the production cost and improving the production efficiency. The problem of high production cost and low production efficiency of existing stamping equipment is solved.

Claims

1. A stamping die for automobile washers, which consists of an upper die and a lower die, and is characterized in that: The upper die comprises an upper die base (1), a punching head (2), a punching core rod (3) and a square punching sleeve (4); the upper die base (1) is provided with a punching head (2); the bottom center of the punching head (2) is provided with a punching core rod (3); the punching sleeve (4) is sleeved on the punching core rod (3); a square guide hole (5) is provided on the punching head (2) outside the punching core rod (3); the guide hole (5) is slidably connected to the punching sleeve (4); The lower die comprises a bottom plate (6), a guide plate (7) and a limit plate (8), a limit sleeve (9) and a demoulding core rod (10) which are arranged in sequence from bottom to top; a square punching die hole (11) is arranged on the guide plate (7); a square limit sleeve (9) is movably inserted in the punching die hole (11); a collar forming hole (12) is arranged on the limit sleeve (9); and a demoulding core rod (10) is inserted in the collar forming hole (12).

2. The stamping die for automobile washers according to claim 1, characterized in that: The top of the guide hole (5) and the bottom plate (6) are respectively provided with sleeve spring assembly holes (13) evenly distributed in an annular shape. A core rod spring assembly hole (14) is provided at the center of the bottom plate (6) between the sleeve spring assembly holes (13). Limiting pins (16) are respectively inserted into the core rod spring assembly hole (14) and the sleeve spring assembly hole (13) through limiting flanges (15). The ends of the limiting pins (16) are fixedly connected to the stamping sleeve (4), the limiting sleeve (9), and the demoulding core rod (10); and reset springs (17) are respectively mounted on the limiting pins (16) between the stamping sleeve (4), the limiting sleeve (9), the demoulding core rod (10) and the limiting flanges (15).

3. The stamping die for automobile washers according to claim 1, characterized in that: Limiting guide plates (18) are respectively arranged on both sides of the punching sleeve (4).

4. The stamping die for automobile washers according to claim 1, characterized in that: The limiting plate (8) is provided with a square pad limiting groove (19), and the pad limiting groove (19) is surrounded by side plate limiting grooves (20).

5. The stamping die for automobile washers according to claim 1, characterized in that: A "Z"-shaped demoulding scraper (21) is symmetrically mounted on the limiting plate (8), and the end of the demoulding scraper (21) is slidably connected to the stamping sleeve (4).

Images