A blank holder die for precision sheet metal production

Abstract

The utility model relates to the technical field of edge pressing die, disclose a kind of edge pressing die for precision sheet metal production, including machining seat and the base in the lower end four corners of the machining seat, the upper end of the machining seat is equipped with the receiving seat, the upper end of the receiving seat is equipped with cylinder, the cylinder extension end is equipped with first water cooling component, and the first water cooling component includes the first water cooling pipe of first water plate being equipped in the cylinder extension end, and the lower end of the first water plate is connected and is equipped with multiple groups of first water cooling pipe.When the upper die and the lower die are closed, the cooling water is injected into the first water plate through the water inlet hose, the cooling water flows inside the first water cooling pipe and the second water cooling pipe, and the cooling water inside the first water cooling pipe and the second water cooling pipe exchanges heat with the lower die, so that the sheet metal part in the lower die is rapidly cooled, the cooling of the sheet metal part is accelerated, and the production rate of the sheet metal part is increased.

Description

Technical Field

[0001] This utility model relates to the field of edge pressing mold technology, and in particular to an edge pressing mold for precision sheet metal production. Background Technology

[0002] Sheet metal is characterized by its light weight, high strength, conductivity (which can be used for electromagnetic shielding), low cost, and good performance for large-scale mass production. It has been widely used in fields such as electronics, communications, automotive, and medical devices. For example, sheet metal is an essential component in computer cases, mobile phones, and MP3 players. As the application of sheet metal becomes more and more widespread, the design of sheet metal parts has become a very important part of the product development process. Mechanical engineers must be proficient in the design skills of sheet metal parts so that the designed sheet metal not only meets the functional and appearance requirements of the product, but also makes the stamping die manufacturing simple and low-cost. Sheet metal production requires the use of blank holder dies to press the edges.

[0003] Existing sheet metal production pressing dies cool the sheet metal naturally after pressing it, resulting in a slow cooling rate that affects the sheet metal production speed. Utility Model Content

[0004] In view of the problem that existing sheet metal pressing dies cool sheet metal naturally after pressing, resulting in a slow cooling rate that affects the sheet metal production speed, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a pressing die for precision sheet metal production, including a processing base and a base located at the four corners of the lower end of the processing base. A receiving seat is provided at the upper end of the processing base, and a cylinder is provided at the upper end of the receiving seat. A first water-cooling assembly is provided at the extended end of the cylinder. The first water-cooling assembly includes a first water-passing plate located at the extended end of the cylinder. Multiple sets of first water-cooling pipes are connected to the lower end of the first water-passing plate. A water inlet hose is connected to the upper end of the first water-passing plate. A water-passing insert is connected to one corner of the lower end of the first water-passing plate. An upper die is provided at the lower end of the first water-passing plate. A lower die is provided at the upper end of the processing base. A second water-cooling assembly is provided on the outer wall of the lower die. The second water-cooling assembly includes a second water-passing plate sleeved on the outer wall of the lower end of the lower die. Multiple sets of second water-cooling pipes are connected to the upper end of the second water-passing plate. A water-passing sleeve is connected to one corner of the upper end of the second water-passing plate. A water outlet pipe is connected to the lower end of the second water-passing plate.

[0006] As a preferred embodiment of the pressing die for precision sheet metal production described in this utility model, wherein: the water inlet end of the water inlet hose passes through the receiving seat, the first water cooling pipe is movably inserted into the space between the second water cooling pipes, the water passage tube is movably inserted into the inner wall of the water passage sleeve, and the lower end of the water outlet pipe passes through the processing seat.

[0007] As a preferred embodiment of the pressing die for precision sheet metal production described in this utility model, the second water-cooling pipe and the outer wall of the lower die are in contact.

[0008] As a preferred embodiment of the pressing die for precision sheet metal production described in this utility model, the upper end of the processing base is provided with an air-cooling component, the air-cooling component includes a fixed block provided at the upper end of the processing base, a ventilation pipe is rotatably inserted into the middle of the fixed block, a motor is fixedly provided on one side of the outer wall of the fixed block, the output end of the motor is connected to the ventilation pipe, the outer wall of the ventilation pipe is provided with multiple sets of air outlets, and a suction fan is connected to the end of the ventilation pipe away from the motor.

[0009] As a preferred embodiment of the pressing die for precision sheet metal production described in this utility model, the first water-passing plate has four fixed sliding sleeves at its four corners, a sliding rod is movably inserted into the middle of the sliding sleeve, and the lower end of the sliding rod is fixedly connected to the processing seat.

[0010] As a preferred embodiment of the pressing die for precision sheet metal production described in this utility model, the slide rod is movably sleeved with a spring at the lower end of the slide sleeve.

[0011] As a preferred embodiment of the pressing die for precision sheet metal production described in this utility model, a PLC controller is fixedly provided on the upper end of the receiving seat, and the cylinder, suction fan, and motor are all electrically connected to the PLC controller.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects:

[0013] 1. In this utility model, after the upper mold and the lower mold are closed, cooling water is injected into the first water-passing plate through the water inlet hose. The cooling water flows inside the first water-cooling pipe and the second water-cooling pipe. Since the first water-cooling pipe and the second water-cooling pipe are in contact with the outer wall of the lower mold, the cooling water inside the first water-cooling pipe and the second water-cooling pipe exchanges heat with the lower mold, which quickly cools down the sheet metal parts in the lower mold, accelerates the cooling of the sheet metal parts, and increases the production rate of the sheet metal parts.

[0014] 2. In this utility model, when cooling sheet metal parts with cooling water, the PLC controller can control the start of the suction fan and motor. The gas absorbed by the suction fan enters the ventilation pipe and is discharged through the air outlet. At the same time, the motor drives the ventilation pipe to rotate, so that the air outlet blows air towards the upper part of the processing base, driving the surrounding air to flow. Combined with the cooling water, this further increases the cooling rate of the sheet metal parts. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the pressing die for precision sheet metal production according to this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the first water-cooling component of the pressing die for precision sheet metal production according to this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the air-cooled component of the pressing die for precision sheet metal production according to this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the second water-cooling component of the pressing die used in precision sheet metal production according to this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Machining base; 2. Base; 3. Receiving base; 4. Cylinder; 5. First water-cooling assembly; 51. First water-cooling plate; 52. First water-cooling pipe; 53. Water-cooling insert; 54. Water inlet hose; 6. Lower mold; 7. Second water-cooling assembly; 71. Second water-cooling plate; 72. Second water-cooling pipe; 73. Water outlet pipe; 74. Water-cooling sleeve; 8. Air-cooling assembly; 81. Fixing block; 82. Ventilation pipe; 83. Fan; 84. Motor; 9. Slide rod; 10. Slide sleeve; 11. Spring; 12. PLC controller; 13. Upper mold. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Example 1

[0023] Reference Figure 1 , Figure 2 and Figure 4 This is the first embodiment of the present invention, providing a pressing die for precision sheet metal production, including a processing base 1 and bases 2 located at the four corners of the lower end of the processing base 1. A receiving seat 3 is provided at the upper end of the processing base 1, and a cylinder 4 is provided at the upper end of the receiving seat 3. A first water-cooling assembly 5 is provided at the extended end of the cylinder 4. The first water-cooling assembly 5 includes a first water-passing plate 51 located at the extended end of the cylinder 4. Multiple sets of first water-cooling pipes 52 are connected to the lower end of the first water-passing plate 51, and a water inlet hose is connected to the upper end of the first water-passing plate 51. 54. A water inlet pipe 53 is connected to one corner of the lower end of the first water inlet plate 51. An upper mold 13 is provided at the lower end of the first water inlet plate 51. A lower mold 6 is provided at the upper end of the processing base 1. A second water cooling component 7 is provided on the outer wall of the lower mold 6. The second water cooling component 7 includes a second water inlet plate 71 sleeved on the outer wall of the lower end of the lower mold 6. Multiple sets of second water cooling pipes 72 are connected to the upper end of the second water inlet plate 71. A water inlet sleeve 74 is connected to one corner of the upper end of the second water inlet plate 71. A water outlet pipe 73 is connected to the lower end of the second water inlet plate 71.

[0024] The water inlet hose 54 passes through the receiving seat 3. The first water cooling pipe 52 is movably inserted into the space between the second water cooling pipes 72. The water supply pipe 53 is movably inserted into the inner wall of the water supply sleeve 74. The lower end of the water outlet pipe 73 passes through the processing seat 1.

[0025] The second water-cooling pipe 72 is attached to the outer wall of the lower mold 6.

[0026] The cylinder 4 is activated, causing the upper mold 13 at the lower end of the first water-cooling plate 51 to move towards the lower mold 6. After the upper mold 13 and the lower mold 6 are closed, the cylinder 4 is deactivated. At this time, the first water-cooling pipe 52 is inserted into the space between the second water-cooling pipes 72, and the water-cooling pipe 53 is inserted into the water-cooling sleeve 74. Cooling water is injected into the first water-cooling plate 51 through the water inlet hose 54. The cooling water in the first water-cooling plate 51 is distributed into the first water-cooling pipes 52, and a portion of the cooling water enters the water-cooling sleeve 74 through the water-cooling pipe 53. The water-cooling sleeve 74 and the second water-cooling plate 72 are connected. When the first water pipe 52 and the second water pipe 72 are connected, the cooling water in the second water pipe 71 is dispersed into the second water cooling pipe 72, and finally the cooling water is discharged from the outlet pipe 73. Thus, after the cooling water is injected through the water inlet hose 54, the cooling water flows inside the first water cooling pipe 52 and the second water cooling pipe 72. Since the first water cooling pipe 52 and the second water cooling pipe 72 are in contact with the outer wall of the lower mold 6, the cooling water inside the first water cooling pipe 52 and the second water cooling pipe 72 exchanges heat with the lower mold 6, which quickly cools down the sheet metal parts in the lower mold 6, accelerates the cooling of the sheet metal parts, and increases the production rate of the sheet metal parts.

[0027] Example 2

[0028] Reference Figure 1 and Figure 4 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: the upper end of the processing base 1 is provided with a wind-cooling component 8. The wind-cooling component 8 includes a fixing block 81 located at the upper end of the processing base 1. A ventilation pipe 82 is rotatably inserted into the middle of the fixing block 81. A motor 84 is fixedly installed on one side of the outer wall of the fixing block 81. The output end of the motor 84 is connected to the ventilation pipe 82. The outer wall of the ventilation pipe 82 is provided with multiple sets of air outlets. The end of the ventilation pipe 82 away from the motor 84 is connected to a suction fan 83.

[0029] A PLC controller 12 is fixedly installed on the upper end of the receiving seat 3. The cylinder 4, the suction fan 83, and the motor 84 are all electrically connected to the PLC controller 12.

[0030] When cooling the sheet metal parts with cooling water, the PLC controller 12 can control the start of the suction fan 83 and the motor 84. The gas absorbed by the suction fan 83 enters the ventilation pipe 82 and is discharged through the air outlet. At the same time, the motor 84 drives the ventilation pipe 82 to rotate, so that the air outlet blows air towards the upper part of the processing base 1, driving the surrounding air flow. Combined with the cooling water, this further increases the cooling rate of the sheet metal parts.

[0031] Example 3

[0032] Reference Figure 1 This is the third embodiment of the present utility model. The difference between this embodiment and the first embodiment is that: the four corners of the outer wall of the first water-passing plate 51 are fixedly provided with sliding sleeves 10, the middle end of the sliding sleeves 10 is movably inserted with a sliding rod 9, and the lower end of the sliding rod 9 is fixedly connected to the processing seat 1.

[0033] The slide rod 9 is movably fitted with a spring 11 at the lower end of the slide sleeve 10.

[0034] During the process of the cylinder 4 driving the upper mold 13 at the lower end of the first water-passing plate 51 to move towards the lower mold 6 for mold closing, the first water-passing plate 51 drives the sliding sleeve 10 to move downward along the sliding rod 9, which increases the stability of the upper mold 13 during the downward movement. When the sliding sleeve 10 and the spring 11 come into contact, the sliding sleeve 10 compresses the spring 11 downward, which facilitates buffering when the upper mold 13 and the lower mold 6 are closed, reduces the impact force when the upper mold 13 and the lower mold 6 come into contact, and avoids damage to the upper mold 13 and the lower mold 6.

[0035] The remaining structure is the same as that in Example 1.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A pressing die for precision sheet metal production, comprising a processing base (1) and bases (2) disposed at the four corners of the lower end of the processing base (1), characterized in that: The processing base (1) is provided with a receiving seat (3) at its upper end, and a cylinder (4) is provided at the upper end of the receiving seat (3). A first water-cooling component (5) is provided at the extended end of the cylinder (4). The first water-cooling component (5) includes a first water-passing plate (51) provided at the extended end of the cylinder (4). A plurality of first water-cooling pipes (52) are connected to the lower end of the first water-passing plate (51). A water inlet hose (54) is connected to the upper end of the first water-passing plate (51). A water-passing insertion pipe (53) is connected to one corner of the lower end of the first water-passing plate (51). A water-passing plate (51) is provided with an upper mold (13) at its lower end, and a lower mold (6) is provided at the upper end of the processing seat (1). A second water-cooling component (7) is provided on the outer wall of the lower mold (6). The second water-cooling component (7) includes a second water-passing plate (71) sleeved on the lower outer wall of the lower mold (6). Multiple sets of second water-cooling pipes (72) are connected to the upper end of the second water-passing plate (71). A water-passing sleeve (74) is connected to one corner of the upper end of the second water-passing plate (71). A water outlet pipe (73) is connected to the lower end of the second water-passing plate (71).

2. The blanking die for precision sheet metal production according to claim 1, characterized in that: The water inlet hose (54) has its water inlet end passing through the receiving seat (3). The first water cooling pipe (52) is movably inserted into the space between the second water cooling pipes (72). The water passage pipe (53) is movably inserted into the inner wall of the water passage sleeve (74). The lower end of the water outlet pipe (73) passes through the processing seat (1).

3. The blanking die for precision sheet metal production according to claim 1, characterized in that: The second water-cooling pipe (72) and the outer wall of the lower mold (6) are in contact.

4. The blanking die for precision sheet metal production according to claim 1, characterized in that: The upper end of the processing base (1) is provided with an air-cooling component (8). The air-cooling component (8) includes a fixing block (81) located at the upper end of the processing base (1). A ventilation pipe (82) is rotatably inserted into the middle of the fixing block (81). A motor (84) is fixedly installed on the outer wall of one side of the fixing block (81). The output end of the motor (84) is connected to the ventilation pipe (82). The outer wall of the ventilation pipe (82) is provided with multiple sets of air outlets. A suction fan (83) is connected to the end of the ventilation pipe (82) away from the motor (84).

5. The blanking die for precision sheet metal production according to claim 1, characterized in that: The first water-passing plate (51) has four corners of a sliding sleeve (10) fixedly provided. A sliding rod (9) is movably inserted into the middle of the sliding sleeve (10). The lower end of the sliding rod (9) is fixedly connected to the processing seat (1).

6. The blanking die for precision sheet metal production according to claim 5, characterized in that: The slide rod (9) is movably fitted with a spring (11) at the lower end of the slide sleeve (10).

7. The blanking die for precision sheet metal production according to claim 1, characterized in that: The upper end of the receiving seat (3) is fixedly equipped with a PLC controller (12), and the cylinder (4), the suction fan (83), and the motor (84) are all electrically connected to the PLC controller (12).

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