Punching mechanism for sheet metal part machining

Abstract

The punching mechanism comprises a combined frame, a transverse plate and a punching seat, a hydraulic cylinder is installed on the combined frame, a punch is installed at the lower end of the hydraulic cylinder, the transverse plate is connected with the combined frame, a groove is formed in the surface of the transverse plate, an oil absorption cotton ring is placed in the groove, an oil guide hole communicated with the groove is formed in the surface of the transverse plate, and the punching seat is connected with the oil guide hole. An extraction pipe is inserted into the oil guide hole, the upper end of the extraction pipe is sleeved with a balloon, a limiting strip for pressing oil absorption cotton is installed on the upper surface of the transverse plate, a punching base is installed on the lower portion of the combined frame and used for positioning a sheet metal part, and a part of lubricating oil can be stored through an oil absorption cotton ring; when the punch is used for punching a sheet metal part, lubricating oil in the oil absorption cotton ring can be attached to the punch, when the punch is used for punching the sheet metal part, the lubricating oil on the punch can delay abrasion of the punch, frequent manual lubrication is not needed, no redundant oil drops on the sheet metal part, and use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal punching technology, specifically a punching mechanism for sheet metal processing. Background Art

[0002] Sheet metal parts require punching during processing. During punching, the punch contacts and rubs against the workpiece surface, causing wear on the punch surface and affecting punching accuracy and quality. Current technology typically uses manual lubrication, requiring operators to periodically lubricate the punch. This is inconvenient, makes controlling the amount of lubricant difficult, and can lead to excess lubricant dripping onto the sheet metal, necessitating secondary cleaning. Utility Model Content

[0003] The purpose of this utility model is to provide a punching mechanism for sheet metal processing to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a punching mechanism for sheet metal processing, comprising a combination frame, on which a hydraulic cylinder is mounted, and a punch is mounted at the lower end of the hydraulic cylinder, the hydraulic cylinder controlling the punch to punch holes in the sheet metal;

[0005] A horizontal plate is connected to a combination frame. The surface of the horizontal plate has a groove, and an oil-absorbing cotton ring is placed inside the groove. The surface of the horizontal plate is provided with an oil guide hole communicating with the groove. An extraction tube is inserted into the oil guide hole, and a balloon is sleeved on the upper end of the extraction tube. A limiting strip is installed on the upper surface of the horizontal plate to press down the oil-absorbing cotton.

[0006] Before each punching operation on a sheet metal part, the punch passes through an oil-absorbing cotton ring. The oil-absorbing cotton ring evenly applies oil to the punch, providing good lubrication and preventing punch wear.

[0007] A stamping base is installed on the lower part of the assembly frame. The stamping base is used to position sheet metal parts and helps to improve the punching accuracy of sheet metal parts.

[0008] Furthermore, the combined frame includes a connecting column and a connecting plate. The upper and lower ends of the connecting column pass through the connecting plate, and the end of the connecting column is screwed with a nut that abuts against the connecting plate. The combined frame can be assembled using only four nuts, making installation convenient and quick.

[0009] Furthermore, the lower connecting plate has a sliding groove, and a collection box is slidably connected inside the sliding groove. The collection box prevents waste from falling to the ground and facilitates the recycling and reuse of waste.

[0010] Furthermore, the horizontal plate is provided with sleeves at both ends, which are connected to the assembly frame. Bolts that abut against the assembly frame are screwed onto the surface of the sleeves. Loosening the bolts can adjust the position of the horizontal plate up and down, thereby changing the position of the oil-absorbing cotton ring, making it more flexible to use.

[0011] Furthermore, the surface of the horizontal plate is provided with two bending strips, and the limiting strip slides between the two bending strips, which facilitates the removal of the limiting strip and can also fix the oil-absorbing cotton ring.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) A portion of lubricating oil can be stored through the oil-absorbing cotton ring. When the punch is inserted into the oil-absorbing cotton ring, the oil-absorbing cotton ring is placed on the surface of the punch. The lubricating oil in the oil-absorbing cotton ring will adhere to the punch. When the punch punches the sheet metal parts, the lubricating oil on the punch can delay the wear of the buffer head. There is no need for frequent manual lubrication, and there will be no excess dripping onto the sheet metal parts, making it more convenient to use.

[0014] (2) Lubricating oil can be extracted through the balloon and the extraction tube. The elasticity of the balloon can prevent the lubricating oil from leaking. When it is necessary to replenish the lubricating oil to the oil-absorbing cotton ring, simply squeeze the balloon and drip the lubricating oil onto the oil-absorbing cotton ring. Replenishing the lubricating oil is also quite convenient. Attached Figure Description

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a cross-sectional view of the horizontal plate of this utility model;

[0017] Figure 3 This is a top view of the horizontal plate of this utility model.

[0018] In the diagram: 1. Connecting column; 2. Connecting plate; 3. Nut; 4. Clamp; 5. Hydraulic cylinder; 6. Slide groove; 7. Collection box; 8. Stamping seat; 9. Bolt; 10. Sleeve; 11. Horizontal plate; 12. Extraction tube; 13. Balloon; 14. Bending strip; 15. Limiting strip; 16. Punch; 17. Oil-absorbing cotton ring; 18. Oil guide hole. Detailed Implementation

[0019] 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.

[0020] Example:

[0021] Please see Figure 1-3 This utility model provides a technical solution: a punching mechanism for sheet metal processing, including a combination frame, on which a hydraulic cylinder 5 is installed, and a punch 16 is installed at the lower end of the hydraulic cylinder 5. The hydraulic cylinder 5 controls the punch 16 to automatically punch holes in the sheet metal.

[0022] A horizontal plate 11 is connected to a combination frame. The surface of the horizontal plate 11 has a groove, and an oil-absorbing cotton ring 17 is placed inside the groove. The surface of the horizontal plate 11 is provided with an oil guide hole 18 communicating with the groove. An extraction tube 12 is inserted into the oil guide hole 18, and a balloon 13 is sleeved on the upper end of the extraction tube 12. A limiting strip 15 that presses down the oil-absorbing cotton is installed on the upper surface of the horizontal plate 11.

[0023] The lubricating oil in the balloon 13 can be discharged into the oil guide hole 18 by squeezing the balloon 13. The lubricating oil flows to the oil absorbent cotton ring 17 through the oil guide hole 18, which can continuously replenish the oil absorbent cotton ring 17. The elasticity of the balloon 13 cooperates with the extraction tube 12 to draw in and store the lubricating oil.

[0024] The stamping base 8 is installed on the lower part of the assembly frame. The stamping base 8 is used to position the sheet metal parts, prevent the sheet metal parts from shifting, and improve the punching accuracy.

[0025] In this embodiment, if Figure 1 As shown, the combined frame includes a connecting column 1 and a connecting plate 2. The upper and lower ends of the connecting column 1 pass through the connecting plate 2. The end of the connecting column 1 is screwed with a nut 3 that abuts against the connecting plate 2. The connecting column 1 has a stud smaller than the connecting column 1 for screwing with the nut 3. The connecting plate 2 has holes at both ends, through which the stud passes.

[0026] In this embodiment, if Figure 1 As shown, the lower connecting plate 2 has a sliding groove 6, and a collection box 7 is slidably connected inside the sliding groove 6. When the sheet metal parts are punched, the waste generated falls into the collection box 7 for convenient centralized processing. The collection box 7 can be pulled out from the sliding groove 6 for convenient recycling of waste.

[0027] In this embodiment, if Figure 1 and Figure 3 As shown, the horizontal plate 11 is provided with sleeves 10 at both ends. The sleeves 10 are connected to the assembly frame. Bolts 9 that abut against the assembly frame are screwed onto the surface of the sleeves 10. The sleeves 10 can move up and down along the connecting column 1 to adjust the position of the horizontal plate 11 and the oil-absorbing cotton ring 17. Tightening the bolts 9 can position the sleeves 10 and prevent the sleeves 10 from sliding.

[0028] In this embodiment, if Figure 1 and Figure 3As shown, the surface of the horizontal plate 11 is provided with two bending strips 14, and the limiting strip 15 is slidably connected between the two bending strips 14. The bending strips 14 are arranged in an n-shape, which can restrict the oil-absorbing cotton ring 17 from separating from the horizontal plate 11. The sliding limiting strip 15 can separate from the bending strips 14, so that the oil-absorbing cotton ring 17 can be taken out and replaced.

[0029] In this embodiment, if Figure 1 As shown, a chuck 4 is sleeved on the lower end of the hydraulic cylinder 5, and the punch 16 is inserted into the chuck 4. The punch 16 and the chuck 4 are detachably connected. When the punch 16 is damaged, the punch 16 can be replaced.

[0030] Specifically, during use, the sheet metal part is placed on the stamping seat 8, and the hydraulic cylinder 5 drives the punch 16 to move down. The punch 16 passes through the oil-absorbing cotton ring 17. Some of the lubricating oil absorbed by the oil-absorbing cotton ring 17 will adhere to the punch 16. When the punch 16 stamps the sheet metal part, the lubricating oil on the punch 16 can delay the wear of the buffer head 16 and extend the service life of the punch 16. The oil-absorbing cotton ring 17 needs to be replenished with lubricating oil. The lubricating oil stored in the balloon 13 will be discharged through the extraction tube 12 when the balloon 13 is squeezed, and can drip onto the oil-absorbing cotton ring 17. If there is an oil leakage problem in the extraction tube 12, the oil guide hole 18 can guide the leaked lubricating oil back onto the oil-absorbing cotton ring 17 to avoid the waste of lubricating oil.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A punching mechanism for sheet metal processing, characterized in that: include: A combined frame, a hydraulic cylinder (5) is mounted on the combined frame, and a punch (16) is mounted at the lower end of the hydraulic cylinder (5); A transverse plate (11), the transverse plate (11) being connected to the assembly frame, the surface of the transverse plate (11) being provided with a groove, an oil-absorbing cotton ring (17) being placed inside the groove, the surface of the transverse plate (11) being provided with an oil guide hole (18) communicating with the groove, an extraction tube (12) being inserted into the oil guide hole (18), and a balloon (13) being sleeved on the upper end of the extraction tube (12), and a limit strip (15) for pressing the oil-absorbing cotton being installed on the upper surface of the transverse plate (11); A punching seat (8) is installed at the lower part of the assembly frame, and the punching seat (8) is used to position the sheet metal part.

2. A punching mechanism for sheet metal processing according to claim 1, characterized in that: The combined frame comprises a connecting column (1) and a connecting plate (2); the upper and lower ends of the connecting column (1) pass through the connecting plate (2); and the ends of the connecting column (1) are screwed with nuts (3) that are pressed against the connecting plate (2).

3. A punching mechanism for sheet metal processing according to claim 2, characterized in that: The lower connecting plate (2) is provided with a slide groove (6), and a collecting box (7) is slidably connected inside the slide groove (6).

4. The punching mechanism for sheet metal processing according to claim 1, characterized in that: The left and right ends of the transverse plate (11) are provided with sleeves (10), the sleeves (10) are connected to the assembly frame, and the surface of the sleeves (10) is screwed with bolts (9) that abut against the assembly frame.

5. The punching mechanism for sheet metal processing according to claim 1, characterized in that: Two bending strips (14) are provided on the surface of the transverse plate (11), and the limiting strip (15) is slidably connected between the two bending strips (14).

6. The punching mechanism for sheet metal processing according to claim 1, characterized in that: The lower end of the hydraulic cylinder (5) is sleeved with a chuck (4), and the punch (16) is inserted into the chuck (4).

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