Hydraulic mechanical punching die

Abstract

The utility model discloses a hydraulic mechanical punching die. The hydraulic mechanical punching die comprises a bottom die base and a material pressing assembly. A female die is arranged in the middle of the upper surface of the bottom die base, guide columns are symmetrically arranged at the left end and the right end of the upper surface of the bottom die base, the top ends of the two guide columns are slidably connected with the inner walls of insertion holes correspondingly formed in the upper die base respectively, and a punching cutter is arranged in the middle of the lower surface of the upper die base and matched with the female die. The punching cutter comprises a cutter holder, a cutter head and a first bolt. The cutter holder is fixedly connected to the middle of the lower surface of the upper die holder. And the material pressing assembly is arranged between the upper surface of the female die and the lower surface of the upper die base. The hydraulic mechanical punching die further comprises a fixing plate and a mounting plate, the fixing plate is arranged in the middle of the upper surface of the upper die base, the mounting plate is fixedly mounted in the middle of the upper surface of the fixing plate, and the hydraulic mechanical punching die positions plates, guarantees punching quality, reduces material consumption and saves maintenance cost.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a hydraulic mechanical punching mold. Background Art

[0002] The punching die is a type of stamping die, which is a device that processes materials (metal or non-metal) into parts (or semi-finished products). It is a pressure processing method that separates materials along closed or open contours to obtain the required parts. Existing punching dies usually directly punch the sheet placed on the die through a cutter. Since the sheet is not fixed, the sheet is easily offset, resulting in unqualified product dimensions. In addition, the existing punching die cutter and die are usually an integrated structure. After long-term use, they are worn or damaged and need to be replaced as a whole, which increases cost consumption. For this reason, we propose a hydraulic mechanical punching die. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a hydraulic mechanical punching and cutting die to position the plate, ensure the punching and cutting quality, reduce material consumption, save maintenance costs, and effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic mechanical punching die, comprising a bottom die seat and a material pressing assembly;

[0005] The bottom die seat: a concave die is provided in the middle of its upper surface, guide pillars are symmetrically provided at the left and right ends of the upper surface of the bottom die seat, the top ends of the two guide pillars are respectively slidably connected with the inner walls of the corresponding plug holes in the upper die seat, and a punching knife is provided in the middle of the lower surface of the upper die seat, and the punching knife is provided in cooperation with the concave die;

[0006] Pressing assembly: arranged between the upper surface of the die and the lower surface of the upper die seat.

[0007] Among them: it also includes a fixed plate and a mounting plate, the fixed plate is arranged in the middle of the upper surface of the upper mold base, and the mounting plate is fixedly installed in the middle of the upper surface of the fixed plate to achieve accurate positioning and fixation of the plate and ensure product quality.

[0008] Furthermore, the punching knife includes a knife seat, a knife head and a bolt. The knife seat is fixedly connected to the middle part of the lower surface of the upper mold seat. The knife head is fixedly connected to the lower surface of the knife seat by a bolt evenly arranged at the lower end of the knife seat, which facilitates the disassembly and replacement of the knife head and reduces material loss.

[0009] Furthermore, the pressing assembly includes a limiting column, a pressure plate, a spring and an avoidance groove. The limiting columns are symmetrically arranged at the four corners of the upper surface of the die, and the top ends of the limiting columns are slidably connected to the inner walls of the sliding holes correspondingly arranged inside the upper die seat. The four corners of the pressure plate are slidably connected to the outsides of the four limiting columns respectively. The upper ends of the outer arc surfaces of the limiting columns are sleeved with springs, and the two ends of the springs are respectively fixedly connected to the lower surface of the upper die seat and the upper surface of the pressure plate. The middle part of the pressure plate is provided with an avoidance groove corresponding to the cutter head to press and fix the plate to avoid position displacement.

[0010] Furthermore, electromagnets are symmetrically arranged inside the left and right ends of the upper surface of the die, and the electromagnets are magnetically adsorbed to the lower surface of the pressing plate, and the lifting and lowering of the pressing plate are controlled by the electromagnets.

[0011] Furthermore, it also includes a positioner, which is symmetrically arranged on the upper surface of the die. The positioner is respectively matched with the avoidance holes correspondingly arranged inside the pressure plate to position the plate, ensure the punching quality, reduce material consumption, and save maintenance costs.

[0012] Furthermore, the positioner includes a core column and a sleeve, the core column is symmetrically arranged on the upper surface of the die, and the sleeve is rotatably connected to the outer arc surface of the sleeve, and the sleeve is respectively arranged in cooperation with the avoidance holes corresponding to the inside of the pressure plate. The sleeve can change the force direction when contacting the plate, thereby guiding the plate.

[0013] Furthermore, a step groove is provided in the middle of the upper surface of the die, and a shear ring is fixedly connected to the bottom surface of the step groove by bolt 2. The shear ring is arranged in cooperation with the outer side surface of the cutter head, and the maintenance cost is reduced by replacing the worn shear ring.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the hydraulic mechanical punching die has the following advantages:

[0015] 1. Place the sheet to be processed into the gap between the die and the pressing plate. During the placement process, the sheet changes direction through the sleeve to reduce the impact of the sheet during placement, so that the sheet is close to the outer arc surface of the sleeve, and then start the electromagnet. The electromagnet is energized and has magnetism and absorbs the pressing plate. The pressing plate moves downward to press and fix the sheet, thereby achieving precise positioning and fixation of the sheet and ensuring product quality.

[0016] 2. The cutter head and shear ring will wear and affect the quality of sheet metal forming. At this time, the cutter head and shear ring are disassembled and replaced separately, avoiding the replacement of the punch cutter and the die as a whole, reducing material consumption and saving maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model when viewed from above;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model in top view.

[0020] In the figure: 1 bottom die base, 2 die, 201 shear ring, 3 guide column, 4 upper die base, 5 punching knife, 51 knife seat, 52 knife head, 53 bolt 1, 6 pressing assembly, 61 limit column, 62 pressure plate, 63 spring, 64 avoidance groove, 7 electromagnet, 8 positioner, 81 core column, 82 sleeve, 9 avoidance hole, 10 fixing plate, 11 mounting plate. 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] See also Figure 1-3 , This embodiment provides a technical solution: a hydraulic mechanical punching die, including a bottom die seat 1 and a pressing assembly 6;

[0023] Bottom die base 1: A die 2 is provided in the middle of its upper surface, guide pillars 3 are symmetrically provided at the left and right ends of the upper surface of the bottom die base 1, the top ends of the two guide pillars 3 are respectively slidably connected with the inner walls of the corresponding sockets arranged inside the upper die base 4, a punching knife 5 is provided in the middle of the lower surface of the upper die base 4, the punching knife 5 is matched with the die 2, the punching knife 5 includes a knife seat 51, a knife head 52 and a bolt 53, the knife seat 51 is fixedly connected to the middle of the lower surface of the upper die base 4, the knife head 52 is fixedly connected to the lower surface of the knife seat 51 by bolts 53 evenly arranged at the lower end of the knife seat 51, so as to facilitate the disassembly and replacement of the knife head 52 and reduce the loss of material.

[0024] Wherein: a step groove is provided in the middle of the upper surface of the die 2, and a shear ring 201 is fixedly connected to the bottom surface of the step groove by bolt 2. The shear ring 201 is matched with the outer side surface of the cutter head 52, and the maintenance cost can be reduced by replacing the worn shear ring 201.

[0025] The pressing component 6 is arranged between the upper surface of the die 2 and the lower surface of the upper die seat 4. The pressing component 6 includes a limiting column 61, a pressure plate 62, a spring 63 and an avoidance groove 64. The limiting column 61 is symmetrically arranged at the four corners of the upper surface of the die 2. The top of the limiting column 61 is slidably connected to the inner wall of the sliding hole correspondingly arranged inside the upper die seat 4. The four corners of the pressure plate 62 are slidably connected to the outside of the four limiting columns 61 respectively. The upper end of the outer arc surface of the limiting column 61 is sleeved with a spring 63. The two ends of the spring 63 are respectively fixedly connected to the lower surface of the upper die seat 4 and the upper surface of the pressure plate 62. The middle part of the pressure plate 62 is provided with an avoidance groove 64 corresponding to the cutter head 52 to press and fix the plate to avoid position displacement. Electromagnets 7 are symmetrically arranged inside the left and right ends of the upper surface of the die 2. The electromagnets 7 are magnetically adsorbed to the lower surface of the pressure plate 62. The electromagnet 7 is started, and the electromagnet 7 is energized to have magnetism and adsorb the pressure plate 62. The pressure plate 62 moves downward to press and fix the plate.

[0026] Among them: it also includes a positioner 8, the positioner 8 is symmetrically arranged on the upper surface of the die 2, and the positioner 8 is respectively matched with the avoidance holes 9 correspondingly arranged inside the pressure plate 62 to position the plate and ensure the quality of punching. The positioner 8 includes a core column 81 and a sleeve 82. The core column 81 is symmetrically arranged on the upper surface of the die 2, and the sleeves 82 are respectively rotatably connected to the outer arc surface of the sleeve 82, and are respectively matched with the avoidance holes 9 correspondingly arranged inside the pressure plate 62. The sleeve 82 can change the force direction when contacting the plate, and play a role in guiding and positioning the plate.

[0027] Among them: it also includes a fixed plate 10 and a mounting plate 11, the fixed plate 10 is arranged in the middle of the upper surface of the upper mold base 4, and the mounting plate 11 is fixedly installed in the middle of the upper surface of the fixed plate 10, and the fixed plate 10 and the mounting plate 11 are used to connect with external hydraulic equipment.

[0028] The working principle of a hydraulic mechanical punching die provided by the utility model is as follows:

[0029] The mounting plate 11 is connected to the external hydraulic device, and the plate to be processed is placed in the gap between the die 2 and the pressing plate 62. During the placement process, the plate changes direction through the sleeve 82 to reduce the impact of the plate during placement, so that the plate is close to the outer arc surface of the sleeve 82, and then the electromagnet 7 is started. The electromagnet 7 is energized and has magnetism and adsorbs the pressing plate 62. The pressing plate 62 moves downward to press and fix the plate, and the spring 63 is stretched. Then the external hydraulic device is operated to move the upper die seat 4 downward, and the upper die seat 4 drives the knife seat 51 and the knife head 52 downward to punch the plate, so that the plate forms a fixed arc edge effect. The slag produced after punching is discharged from the mold through the channel set in the middle of the die 2 and the bottom die seat 1, and then the knife seat 51 and the knife head 52 are controlled to lift, and the electromagnet 7 is controlled to be powered off. The electromagnet 7 loses its magnetism and no longer adsorbs the pressing plate 62. The pressing plate 62 slides upward and resets under the elastic force of the spring 63, and the formed sheet is taken out. After long-term work, the knife head 52 and the shear ring 201 will be worn, affecting the forming quality of the sheet. At this time, the knife head 52 and the shear ring 201 are disassembled and replaced separately, avoiding the replacement of the punching knife 5 and the die 2 as a whole, reducing material consumption, and saving maintenance costs.

[0030] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A hydraulic mechanical punching die, characterized in that: It comprises a bottom die base (1) and a material pressing component (6); A bottom die seat (1): a concave die (2) is provided in the middle of its upper surface; guide pillars (3) are symmetrically provided at the left and right ends of the upper surface of the bottom die seat (1); the top ends of the two guide pillars (3) are respectively slidably connected to the inner walls of the corresponding insertion holes arranged inside the upper die seat (4); a punching knife (5) is provided in the middle of the lower surface of the upper die seat (4); the punching knife (5) is arranged in cooperation with the concave die (2); A material pressing assembly (6) is arranged between the upper surface of the concave die (2) and the lower surface of the upper die seat (4); Wherein: it also includes a fixing plate (10) and a mounting plate (11), the fixing plate (10) is arranged in the middle of the upper surface of the upper mold base (4), and the mounting plate (11) is fixedly mounted in the middle of the upper surface of the fixing plate (10).

2. A hydraulic mechanical punching die according to claim 1, characterized in that: The punching knife (5) comprises a knife seat (51), a knife head (52) and a bolt (53); the knife seat (51) is fixedly connected to the middle part of the lower surface of the upper die seat (4); and the knife head (52) is fixedly connected to the lower surface of the knife seat (51) through bolts (53) evenly arranged at the lower end of the knife seat (51).

3. A hydraulic mechanical punching die according to claim 2, characterized in that: The pressing assembly (6) comprises a limiting column (61), a pressing plate (62), a spring (63) and an avoidance groove (64); the limiting column (61) is symmetrically arranged at the four corners of the upper surface of the die (2); the top end of the limiting column (61) is slidably connected to the inner wall of the sliding hole correspondingly arranged inside the upper die seat (4); the four corners of the pressing plate (62) are slidably connected to the outside of the four limiting columns (61); the upper end of the outer arc surface of the limiting column (61) is sleeved with a spring (63); the two ends of the spring (63) are respectively fixedly connected to the lower surface of the upper die seat (4) and the upper surface of the pressing plate (62); the middle part of the pressing plate (62) is provided with an avoidance groove (64) corresponding to the cutter head (52).

4. A hydraulic mechanical punching die according to claim 3, characterized in that: Electromagnets (7) are symmetrically arranged inside the left and right ends of the upper surface of the concave mold (2), and the electromagnets (7) are magnetically attracted to the lower surface of the pressing plate (62).

5. The hydraulic mechanical punching die according to claim 3, characterized in that: It also includes a positioner (8), which is symmetrically arranged on the upper surface of the die (2), and the positioner (8) is respectively arranged in cooperation with the avoidance holes (9) correspondingly arranged inside the pressing plate (62).

6. A hydraulic mechanical punching die according to claim 5, characterized in that: The positioner (8) comprises a core column (81) and a sleeve (82), wherein the core column (81) is symmetrically arranged on the upper surface of the die (2), and the sleeve (82) is rotatably connected to the outer arc surface of the sleeve (82), and is respectively arranged to cooperate with the avoidance holes (9) correspondingly arranged inside the pressure plate (62).

7. A hydraulic mechanical punching die according to claim 2, characterized in that: A step groove is provided in the middle of the upper surface of the concave die (2), and a shear ring (201) is fixedly connected to the bottom surface of the step groove by bolt 2, and the shear ring (201) is arranged in cooperation with the outer side surface of the cutter head (52).

Images