Burr-free blanking die for sealing washer

Abstract

The utility model belongs to the technical field of sealing washer processing, and relates to a sealing washer burr-free blanking die which comprises a base, an air cylinder is fixedly arranged over the base, the output end of the air cylinder is fixedly connected with a telescopic rod, the telescopic rod is sleeved with a first sleeve, and the outer surface of the telescopic rod is fixedly sleeved with a sliding sleeve. A workbench is fixedly arranged over the base, a rotary table rotationally penetrates through the middle of the workbench, a positioning plate is fixedly connected to the outer surface of the top end of the rotary table, a containing hole is formed in the positioning plate, and two pieces of abrasive paper which correspond to each other up and down are fixedly arranged at the top of the workbench. And the positioning plate is movably arranged between the two pieces of abrasive paper. The sealing washer moves between the two pieces of abrasive paper, the abrasive paper can polish the top face and the bottom face of the sealing washer, the deburring effect is achieved, deburring operation does not need to be conducted on the sealing washer independently, and the workload is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of sealing gasket processing technology, and relates to a burr-free punching die for sealing gaskets. Background Technology

[0002] A gasket is a mechanical component used to fill the gap between two or more parts to prevent fluid or gas leakage. The processing of metal gaskets requires the design of suitable molds, and the metal material is stamped into the required shape. Because burrs easily remain on the surface of the gasket after stamping, a burr-free stamping die for gaskets is needed.

[0003] A metal washer forming mold disclosed in Chinese patent CN214078773U has a limiting groove formed along the top of the placement table in a ring. The structural design of the limiting groove makes it easier for workers to place the circular washer and avoids the situation where there is a positional deviation between the circular washer and the placement table when it is placed on the top of the placement table, which would affect the stamping accuracy.

[0004] The molding die uses a hydraulic press, a cutter, and a channel to punch the center hole of a circular gasket. However, some of the punched holes will have burrs, requiring deburring after the gasket is removed, which increases the workload.

[0005] To solve the above problems, this utility model proposes a burr-free punching die for sealing gaskets. Utility Model Content

[0006] To address the problems existing in the background technology, this utility model proposes a burr-free punching die for sealing gaskets.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: it includes a base, a cylinder is fixedly installed on the top of the base, a telescopic rod is fixedly connected to the output end of the cylinder, a first sleeve is sleeved on the telescopic rod, a sliding sleeve is fixedly sleeved on the outer surface of the telescopic rod, and the sliding sleeve is slidably and sealingly connected to the inside of the first sleeve.

[0008] A workbench is fixedly installed directly above the base. A turntable rotates through the middle of the workbench. A positioning plate is fixedly connected to the outer surface of the top of the turntable. The positioning plate has a placement hole. Two sandpapers corresponding to each other are fixedly installed on the top of the workbench. The positioning plate is movably installed between the two sandpapers.

[0009] The bottom of the worktable is fixedly connected to a second sleeve. The inner cavity of the second sleeve is connected to the inner cavity of the first sleeve through a connecting pipe. A slide rod is slidably arranged inside the second sleeve, and a driving component is provided at the end of the slide rod. The driving component drives the turntable to rotate.

[0010] Furthermore, an L-shaped support plate is fixedly connected to the top of the base, a cylinder is fixedly connected to the top of the support plate, and a telescopic rod slides through the support plate.

[0011] Furthermore, the top surface of the first sleeve is fixedly connected to the support plate, and the bottom surface of the first sleeve is in a sealing sliding fit with the telescopic rod;

[0012] A fixed ring is fixedly sleeved on the telescopic rod, and the fixed ring is movably set on the bottom surface of the first sleeve. A collar is slidably sleeved on the bottom of the telescopic rod, and a spring is fixedly connected between the collar and the fixed ring, with the spring sleeved on the telescopic rod.

[0013] Furthermore, a fixed shaft is fixedly connected to the top of the base, and the turntable is rotatably sleeved on the top of the fixed shaft. A torsion spring is sleeved on the fixed shaft, one end of the torsion spring is fixedly connected to the top surface of the base, and the other end of the torsion spring is fixedly connected to the bottom surface of the turntable.

[0014] Furthermore, the second sleeve has a piston slidably connected to its interior, and a slide rod slides through the end face of the second sleeve, with the end of the slide rod away from the drive component fixedly connected to one side of the piston.

[0015] Furthermore, the driving component includes a rack, which is fixedly connected to one end of the slide rod extending outside the second sleeve, and the rack is slidably connected to the bottom surface of the worktable;

[0016] The bottom end of the turntable is fitted with a gear via a one-way bearing, and the gear meshes with a rack.

[0017] Furthermore, an arc-shaped plate is fixedly connected to the top of the workbench. The arc-shaped plate has an L-shaped cross-section. One end of the positioning plate with a placement hole is slidably disposed inside the arc-shaped plate. A piece of sandpaper located above is fixedly connected to the top of the arc-shaped plate, and a piece of sandpaper located below is fixedly connected to the top surface of the workbench.

[0018] Furthermore, a first collection frame and a second collection frame are fixedly connected to the top of the base, and the top ends of both the first collection frame and the second collection frame are fixedly connected to the bottom surface of the workbench.

[0019] A through hole is provided on the workbench at the first collection frame, and the through hole corresponds vertically to the telescopic rod. The diameter of the through hole is equal to the diameter of the telescopic rod. A material discharge hole is provided on the workbench at the second collection frame, and the diameter of the material discharge hole is equal to the diameter of the placement hole.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The burr-free punching die for the sealing gasket is equipped with two corresponding sandpapers. After the raw material of the metal sealing gasket is punched inside the placement hole, the drive component will drive the turntable to rotate, causing the positioning plate and the placement hole to rotate, which in turn drives the sealing gasket to rotate into the arc plate. This allows the sealing gasket to move between the two sandpapers, and the sandpapers will polish the top and bottom surfaces of the sealing gasket to achieve the effect of deburring. There is no need to perform a separate deburring operation on the sealing gasket, reducing the workload.

[0022] 2. The burr-free punching die for the sealing gasket is equipped with a connecting pipe. When the telescopic rod moves downward to punch the sealing gasket, it drives the sliding sleeve to move downward inside the first sleeve, allowing the gas inside the first sleeve to enter the interior of the second sleeve through the connecting pipe. This pushes the piston, causing the sliding rod to extend outward from the second sleeve, which in turn moves the rack and drives the gear to rotate. At this time, the one-way bearing rotates freely, the turntable does not rotate, and it does not affect the punching operation of the telescopic rod.

[0023] 3. The burr-free punching die for the sealing gasket is equipped with gears. After the telescopic rod is punched, it will move upward. The first sleeve will extract the gas in the second sleeve through the connecting pipe. The piston pulls the slide rod to move, causing the rack to move and drive the gear to rotate. At this time, the one-way bearing is locked and drives the turntable to rotate together, which in turn drives the sealing gasket to move for deburring. There is no need to drive the turntable to rotate separately, which reduces production costs. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the first sleeve in this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the second sleeve in this utility model.

[0027] In the diagram: 1. Base; 2. Support plate; 3. Cylinder; 4. Telescopic rod; 5. Fixing ring; 6. Spring; 7. Collar; 8. First sleeve; 9. Sliding sleeve; 10. Connecting pipe; 11. Second sleeve; 12. Support rod; 13. Worktable; 14. Piston; 15. Sliding rod; 16. Rack; 17. Gear; 18. Torsion spring; 19. Turntable; 20. Fixed shaft; 21. Placement hole; 22. Through hole; 23. Material drop hole; 24. First collection frame; 25. Second collection frame; 26. Arc plate; 27. Sandpaper; 28. Positioning plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1-3 As shown, the technical solution adopted by this utility model is as follows: a burr-free punching die for sealing gaskets includes a base 1, a cylinder 3 is fixedly installed directly above the base 1, and a telescopic rod 4 is fixedly connected to the output end of the cylinder 3. The cylinder 3 can push the telescopic rod 4 to move up and down.

[0030] An L-shaped support plate 2 is fixedly connected to the top of the base 1, and a cylinder 3 is fixedly connected to the top of the support plate 2. A telescopic rod 4 slides through the support plate 2. The support plate 2 supports and fixes the cylinder 3.

[0031] A first sleeve 8 is fitted onto the telescopic rod 4. A sliding sleeve 9 is fixedly fitted onto the outer surface of the telescopic rod 4, and the sliding sleeve 9 is slidably and sealingly connected to the inside of the first sleeve 8. The telescopic rod 4 will cause the sliding sleeve 9 to slide up and down inside the first sleeve 8.

[0032] The top surface of the first sleeve 8 is fixedly connected to the support plate 2, and the bottom surface of the first sleeve 8 is in a sealed sliding fit with the telescopic rod 4. The telescopic rod 4 slides up and down inside the first sleeve 8. An air hole is provided at the top of the first sleeve 8, so that the cavity inside the first sleeve 8 located at the top of the sliding sleeve 9 is in communication with the outside air.

[0033] A fixing ring 5 is fixedly sleeved on the telescopic rod 4, and the fixing ring 5 is movably disposed on the bottom surface of the first sleeve 8. A collar 7 is slidably sleeved on the bottom of the telescopic rod 4, and a spring 6 is fixedly connected between the collar 7 and the fixing ring 5. The spring 6 is sleeved on the telescopic rod 4. In the initial state, the spring 6 pulls the collar 7 upward, so that the bottom surface of the collar 7 is on the same plane as the bottom surface of the telescopic rod 4.

[0034] A workbench 13 is fixedly installed directly above the base 1. Four support rods 12 are evenly fixedly connected to the bottom surface of the workbench 13, and the bottom ends of the support rods 12 are fixedly connected to the top surface of the base 1.

[0035] A turntable 19 rotates through the middle of the workbench 13. A positioning plate 28 is fixedly connected to the outer surface of the top of the turntable 19, and a placement hole 21 is provided on the positioning plate 28. During use, the sealing gasket material is placed into the placement hole 21 for punching.

[0036] Two sandpapers 27 are fixedly installed on the top of the workbench 13, corresponding to each other, and the positioning plate 28 is movably installed between the two sandpapers 27.

[0037] An arc-shaped plate 26 is fixedly connected to the top of the workbench 13. The arc-shaped plate 26 has an L-shaped cross-section. One end of the positioning plate 28, which has a placement hole 21, is slidably disposed inside the arc-shaped plate 26. A piece of sandpaper 27 located above is fixedly connected to the top of the arc-shaped plate 26, and a piece of sandpaper 27 located below is fixedly connected to the top surface of the workbench 13. This allows the placement hole 21 to move the punched sealing gasket between the two pieces of sandpaper 27, enabling the sandpaper 27 to perform deburring.

[0038] A second sleeve 11 is fixedly connected to the bottom of the workbench 13, and the inner cavity of the second sleeve 11 is connected to the inner cavity of the first sleeve 8 through a connecting pipe 10. A slide rod 15 is slidably arranged inside the second sleeve 11.

[0039] A drive component is provided at the end of the slide bar 15, which drives the turntable 19 to rotate.

[0040] The piston 14 is internally and slidably connected to the second sleeve 11. The slide rod 15 slides through the end face of the second sleeve 11, and the end of the slide rod 15 away from the driving component is fixedly connected to one side of the piston 14. The slide rod 15 and the end of the second sleeve 11 are not in a sealed sliding fit. The inner cavity of the second sleeve 11 is divided into two parts by the piston 14. One part is for exhaust and intake through the connecting pipe 10, and the other part is connected to the outside air through the slide rod 15.

[0041] The driving component includes a rack 16, which is fixedly connected to one end of the slide rod 15 extending outside the second sleeve 11. The rack 16 is slidably connected to the bottom surface of the worktable 13. The slide rod 15 drives the rack 16 to slide on the bottom of the worktable 13.

[0042] The bottom end of the turntable 19 is fitted with a gear 17 via a one-way bearing. The inner ring of the one-way bearing is fixedly fitted onto the turntable 19, and the gear 17 is fixedly fitted onto the outer ring of the one-way bearing. The gear 17 meshes with a rack 16. When the rack 16 slides, it drives the gear 17 to rotate.

[0043] A fixed shaft 20 is fixedly connected to the top of the base 1, and a turntable 19 is rotatably mounted on the top of the fixed shaft 20. A torsion spring 18 is mounted on the fixed shaft 20, with one end of the torsion spring 18 fixedly connected to the top surface of the base 1 and the other end of the torsion spring 18 fixedly connected to the bottom surface of the turntable 19. In the initial state, the torsion spring 18 drives the turntable 19 to rotate, so that the placement hole 21 aligns vertically with the telescopic rod 4.

[0044] The top of the base 1 is fixedly connected to a first collection frame 24 and a second collection frame 25, and the tops of the first collection frame 24 and the second collection frame 25 are both fixedly connected to the bottom surface of the workbench 13.

[0045] A through hole 22 is provided on the workbench 13 at the first collection frame 24. The through hole 22 corresponds vertically to the telescopic rod 4, and the diameter of the through hole 22 is equal to the diameter of the telescopic rod 4. This allows the raw material after being punched by the telescopic rod 4 to fall into the first collection frame 24 through the through hole 22.

[0046] The workbench 13 has a discharge hole 23 located at the second collection frame 25. The diameter of the discharge hole 23 is equal to the diameter of the placement hole 21. When the placement hole 21 moves the sealing gasket, the sealing gasket will move to the discharge hole 23 and then fall into the second collection frame 25 through the discharge hole 23, thus realizing the automatic collection of the sealing gasket.

[0047] Working principle:

[0048] Place the sealing gasket material into the placement hole 21 so that the sealing gasket material is vertically aligned with the telescopic rod 4.

[0049] Start cylinder 3, which pushes telescopic rod 4 downward, causing sliding sleeve 9, fixed ring 5, spring 6, and collar 7 to move downward.

[0050] The bottom surfaces of the telescopic rod 4 and the collar 7 will contact the raw material. Then, the telescopic rod 4 continues to move downwards. Due to the obstruction of the collar 7 by the raw material, the collar 7 stops moving downwards. The telescopic rod 4 drives the fixed ring 5 to move downwards, and the compressed spring 6 will press downwards against the collar 7, causing the collar 7 to exert downward pressure on the raw material, thus securing and fixing it. Meanwhile, the telescopic rod 4 punches the raw material.

[0051] The sliding sleeve 9 slides downwards inside the first sleeve 8, allowing the gas inside the first sleeve 8 to enter the second sleeve 11 through the connecting pipe 10. The increased gas in the second sleeve 11 pushes the piston 14 to slide, causing the sliding rod 15 and rack 16 to move. The rack 16 drives the gear 17 to rotate, at which point the one-way bearing idles, and the turntable 19 does not rotate.

[0052] When the telescopic rod 4 punches downwards, the punched material enters the interior of the first collection frame 24 through the through hole 22. The sealing gasket remains inside the placement hole 21.

[0053] After the blanking is completed, cylinder 3 pulls the telescopic rod 4 upward, causing the sliding sleeve 9 and the fixing ring 5 to move upward. Since spring 6 is in a compressed state, the top of spring 6 moves upward along with the fixing ring 5, while the bottom of spring 6 continues to push the collar 7, causing the collar 7 to abut against the top of the sealing gasket. When spring 6 returns to its initial state, it pulls the collar 7 upward, causing the collar 7 to move away from the sealing gasket.

[0054] The sliding sleeve 9 slides upward inside the first sleeve 8, drawing gas from the second sleeve 11 through the connecting pipe 10, causing the piston 14 to slide inside the second sleeve 11. The piston 14 drives the sliding rod 15 and the rack 16 to move.

[0055] The rack 16 drives the gear 17 to rotate. At this time, the one-way bearing is locked, which will drive the turntable 19 to rotate together, causing the positioning plate 28 to drive the sealing gasket to rotate together, and driving the torsion spring 18 to twist.

[0056] The sealing gasket moves between two sandpapers 27, which polish the top and bottom surfaces of the sealing gasket. After polishing, the sealing gasket is moved to the discharge hole 23, aligning the placement hole 21 with the discharge hole 23, so that the sealing gasket falls into the second collection frame 25 for collection.

[0057] Afterwards, rack 16 disengages from gear 17 and drives turntable 19 to rotate under the action of torsion spring 18, which will move placement hole 21 directly below telescopic rod 4 for reuse.

[0058] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A burr-free die for blanking a gasket, characterized by, The base (1) is fixedly provided with a cylinder (3) above it, the output end of the cylinder (3) is fixedly connected with a telescopic rod (4), the telescopic rod (4) is sleeved with a first sleeve (8), the outer surface of the telescopic rod (4) is fixedly sleeved with a sliding sleeve (9), and the sliding sleeve (9) is sealingly and slidably connected in the first sleeve (8); A workbench (13) is fixedly arranged above the base (1), a rotary table (19) is rotatably arranged in the middle of the workbench (13), the outer surface of the top end of the rotary table (19) is fixedly connected with a positioning plate (28), the positioning plate (28) is provided with a placing hole (21), and the top of the workbench (13) is fixedly provided with two sandpapers (27) corresponding in up-down direction; and the positioning plate (28) is movably arranged between the two sandpapers (27). The bottom of the workbench (13) is fixedly connected with a second sleeve (11), the inner cavity of the second sleeve (11) is communicated with the inner cavity of the first sleeve (8) through a connecting pipe (10), and a sliding rod (15) is slidably arranged in the second sleeve (11).

2. The seal gasket burr-free blanking die of claim 1, wherein: The top of the base (1) is fixedly connected with an L-shaped supporting plate (2), the cylinder (3) is fixedly connected to the top of the supporting plate (2), and the telescopic rod (4) slidably penetrates through the supporting plate (2).

3. The seal gasket burr-free blanking die of claim 2, wherein: The top surface of the first sleeve (8) is fixedly connected with the supporting plate (2), and the bottom surface of the first sleeve (8) is sealingly and slidably connected with the telescopic rod (4); A fixed ring (5) is fixedly sleeved on the telescopic rod (4), the fixed ring (5) is movably arranged on the bottom surface of the first sleeve (8), a sleeve ring (7) is slidably sleeved on the bottom of the telescopic rod (4), the spring (6) is fixedly connected between the sleeve ring (7) and the fixed ring (5), and the spring (6) is sleeved on the telescopic rod (4).

4. The seal gasket burr-free blanking die of claim 1, wherein: The top of the base (1) is fixedly connected with a fixed shaft (20), the rotary table (19) is rotatably sleeved on the top end of the fixed shaft (20), a torsional spring (18) is sleeved on the fixed shaft (20), one end of the torsional spring (18) is fixedly connected to the top surface of the base (1), and the other end of the torsional spring (18) is fixedly connected to the bottom surface of the rotary table (19).

5. The seal gasket burr-free blanking die of claim 1, wherein: The inside of the second sleeve (11) is sealingly and slidably connected with a piston (14), the sliding rod (15) slidably penetrates through the end surface of the second sleeve (11), and one end of the sliding rod (15) away from the driving part is fixedly connected to one side of the piston (14).

6. The seal gasket burr-free blanking die of claim 5, wherein: The driving part comprises a rack (16), the rack (16) is fixedly connected to one end of the sliding rod (15) that extends to the outside of the second sleeve (11), and the rack (16) is slidably connected to the bottom surface of the workbench (13); The bottom end of the rotary table (19) is sleeved with a gear (17) through a one-way bearing, and the gear (17) is engaged with the rack (16).

7. The seal gasket burr-free blanking die of claim 1, wherein: The top of the workbench (13) is fixedly connected with an arc-shaped plate (26), the cross section shape of the arc-shaped plate (26) is L-shaped, one end of the positioning plate (28) provided with a placing hole (21) is slidably arranged in the arc-shaped plate (26), one sandpaper (27) located above is fixedly connected to the top of the arc-shaped plate (26), and one sandpaper (27) located below is fixedly connected to the top surface of the workbench (13).

8. The seal gasket burr-free blanking die of claim 1, wherein: The top of the base (1) is fixedly connected with a first collecting frame (24) and a second collecting frame (25), and the top ends of the first collecting frame (24) and the second collecting frame (25) are fixedly connected to the bottom surface of the workbench (13); A through hole (22) is formed in the workbench (13) at the first collecting frame (24), the through hole (22) corresponds to the telescopic rod (4) in the up-down direction, the diameter of the through hole (22) is equal to the diameter of the telescopic rod (4), a blanking hole (23) is formed in the workbench (13) at the second collecting frame (25), and the diameter of the blanking hole (23) is equal to the diameter of the placing hole (21).

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