Die for numerical control punching machine

Abstract

The utility model provides a die for a numerical control punching machine, which relates to the technical field of dies for punching machines and comprises an electric hydraulic rod fixedly connected to the inner upper surface of a punching machine tool, an upper die fixedly connected to the bottom of the electric hydraulic rod, a through hole formed in the upper die, and a lower die fixedly connected to the inner lower surface of the punching machine tool. A sliding rod is fixedly connected to the upper surface of the lower mold and slides in the through hole, an electric telescopic rod is fixedly connected to one side of the lower mold, a first supporting plate is fixedly connected to one end of the electric telescopic rod, and a second connecting rod is fixedly connected to one side of the first supporting plate; the second sliding block drives the supporting rod to rotate by 180 degrees, so that the part body is turned over, the part is machined twice, and deformation of the part is prevented; when the half gear is not meshed with the rack, the second spring extends to release elastic potential energy, so that the rack is pushed through the second spring, and the rack pushes waste materials to move away the waste materials.

Description

Technical Field

[0001] The utility model relates to the technical field of dies for punching presses, and particularly relates to a die for a numerical control punching press. Background Art

[0002] The types and design methods of dies for numerical control punching presses are diverse. Compound dies: Without changing the position of the blank, two or more different processes can be completed simultaneously under each impact of the punching press, but it is limited to the shearing process. Combination dies: If the die is composed of non-shearing processing processes or a combination of non-shearing and shearing processes, without changing the position of the blank, several single-process operations can be completed simultaneously under each punching of the feeding machine of the numerical control punching press. Progressive dies: Single-process dies with various functions are arranged in stages on the feeding machine of the numerical control punching press, and the strip material passes through each stage in turn for processing, and a complete part is completed at the last stage. Many factors need to be considered during the die design process, such as the thinning rate of the material, lift design, selection and heat treatment of die materials, and surface treatment. At the same time, to avoid operation errors, some basic principles need to be followed when using the die, such as checking the direction during die installation, correctly adjusting the stamping depth of the die, and using a lower punching speed.

[0003] After retrieval, the utility model with the publication number CN215544452U discloses a die for a numerical control punching press. Although this utility model patent solves the technical problem that in the prior art, after punching, mechanical or other auxiliary power is required to take out the part blanks in the stamping die, which is relatively time-consuming and laborious; however

[0004] 1. When the thickness of the part to be punched is large, the part of the part that has not been punched in the lower half may be deformed due to the extrusion caused by punching, thus affecting the accuracy and appearance quality of the part, and this utility model patent cannot solve this problem;

[0005] 2. If the waste material generated after punching cannot leave the die automatically, the accumulation of waste material will seriously affect the parts punched by the upper die;

[0006] Therefore, a die for a numerical control punching press is proposed. Content of the Utility Model

[0007] In view of this, the utility model provides a die for a numerical control punching press to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial option.

[0008] The technical solution of the utility model is realized as follows: A mold for a numerical control punching machine, which includes an electric hydraulic rod fixedly connected to the upper surface inside the punching machine tool. The bottom of the electric hydraulic rod is fixedly connected to an upper mold. A through hole is opened in the upper mold. The lower surface inside the punching machine tool is fixedly connected to a lower mold. A sliding rod is fixedly connected to the upper surface of the lower mold. The sliding rod slides in the through hole. One side of the lower mold is fixedly connected to an electric telescopic rod. One end of the electric telescopic rod is fixedly connected to a first support plate. One side of the first support plate is fixedly connected to a second connecting rod. The outer wall of the second connecting rod is rotatably connected to a third connecting rod. A first chute is opened in the third connecting rod. One side of the first support plate is fixedly connected to a first motor. The output end of the first motor passes through the first support plate and is fixedly connected to a first connecting rod. One side of the first connecting rod is fixedly connected to a first slider. The first slider slides in the first chute. One side of the first support plate is fixedly connected to a support frame. The top of the support frame is fixedly connected to a first housing. A support rod is rotatably connected inside the first housing. One end of the support rod is fixedly connected to a fourth connecting rod. One side of the fourth connecting rod is fixedly connected to a second slider. The second slider slides in the first chute. The end of the support rod away from the first support plate is fixedly connected to a second housing.

[0009] Further preferably, one side of the lower mold is fixedly connected to a second support plate. One side of the second support plate is fixedly connected to a second motor. The output end of the second motor is fixedly connected to a semi-gear. The outer wall of the semi-gear is meshed with a rack. One end of the rack away from the lower mold is fixedly connected to a second spring. The end of the second spring away from the rack is fixedly connected to the inside of the punching machine tool. A second chute is opened in the lower surface inside the punching machine tool. The second chute is located directly below the lower mold. The rack slides in the second chute.

[0010] Further preferably, a first spring and a third spring are fixedly connected to the inside of the second housing. One end of the first spring and the third spring is fixedly connected to a clamping plate. A part body is arranged between the two clamping plates.

[0011] Further preferably, the number of the through holes and the sliding rods is multiple, and the number and positions of the through holes and the sliding rods correspond to each other. The through holes and the sliding rods can assist in aligning the upper mold and the lower mold.

[0012] Further preferably, there are two groups of the first spring, the third spring and the clamping plate. The two groups of the first spring, the third spring and the clamping plate are located on both sides of the part body. The two groups of the first spring, the third spring and the clamping plate are used to clamp and fix the part body.

[0013] Further preferably, the length of the first spring is greater than the length of the third spring, and the distance between the ends of the clamping plate close to the outside of the second housing is larger. It is convenient to insert the part body between the clamping plates for fixation.

[0014] Due to the adoption of the above technical solutions in the embodiments of the utility model, it has the following advantages:

[0015] 1. The motor 1 of the present utility model drives the connecting rod 1 and the slider 1 to rotate. The slider 1 slides in the chute 1 while driving the connecting rod 3 to swing. The slider 2 slides in the chute 1, so the slider 2 slides and rotates downward in the chute 1. Driven by the slider 1, the connecting rod 3 swings left and right on the connecting rod 2. The connecting rod 3 drives the slider 2 to rotate 180 degrees, and then the slider 2 drives the support rod to rotate 180 degrees, thereby flipping the part body and processing the part twice to prevent the part from deforming.

[0016] 2. The motor 2 of the present utility model drives the half gear to rotate. During the rotation of the half gear, it drives the rack to slide in the chute 2. The half gear rotates and meshes with the rack. The rack slides away from the lower mold. At the same time, the rack squeezes the spring 2. At this time, the spring 2 is compressed to store elastic potential energy. When the half gear is not meshed with the rack, the spring 2 extends to release the elastic potential energy, thereby pushing the rack through the spring 2, and then the rack pushes the waste material to move the waste material away.

[0017] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present utility model will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 It is a schematic diagram of the upper mold and lower mold structure of the present utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the support plate 1 of the present utility model Figure 1 ;

[0022] Figure 4 It is a schematic diagram of the structure of the support plate 1 of the present utility model Figure 2 ;

[0023] Figure 5 It is a schematic diagram of the structure of the lower mold of the present utility model.

[0024] Reference numerals: 2, electro-hydraulic rod; 3, upper die; 4, through hole; 5, lower die; 6, slide bar; 7, first support plate; 8, first motor; 9, first connecting rod; 10, first slider; 11, second connecting rod; 12, third connecting rod; 13, first chute; 14, support frame; 15, support rod; 16, fourth connecting rod; 17, second slider; 18, first spring; 19, clamping plate; 20, part body; 21, second support plate; 22, second motor; 23, semi-gear; 24, rack; 25, second spring; 26, second chute; 27, third spring; 28, first housing; 29, second housing; 30, electric telescopic rod. Detailed implementation manners

[0025] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0026] The embodiments of the present invention will be described in detail below with reference to the drawings.

[0027] As Figures 1-5 shown, the embodiment of the present invention provides a die for a numerical control punching machine: including an electro-hydraulic rod 2 fixedly connected to the upper surface inside the punching machine tool, the bottom of the electro-hydraulic rod 2 is fixedly connected to an upper die 3, a through hole 4 is opened in the upper die 3, a lower die 5 is fixedly connected to the lower surface inside the punching machine tool, a slide bar 6 is fixedly connected to the upper surface of the lower die 5, the slide bar 6 slides in the through hole 4, an electric telescopic rod 30 is fixedly connected to one side of the lower die 5, one end of the electric telescopic rod 30 is fixedly connected to a first support plate 7, a second connecting rod 11 is fixedly connected to one side of the first support plate 7, a third connecting rod 12 is rotatably connected to the outer wall of the second connecting rod 11, a first chute 13 is opened in the third connecting rod 12, a first motor 8 is fixedly connected to one side of the first support plate 7, the output end of the first motor 8 passes through the first support plate 7 and is fixedly connected to a first connecting rod 9, a first slider 10 is fixedly connected to one side of the first connecting rod 9, the first slider 10 slides in the first chute 13, a support frame 14 is fixedly connected to one side of the first support plate 7, a first housing 28 is fixedly connected to the top of the support frame 14, a support rod 15 is rotatably connected to the inside of the first housing 28, one end of the support rod 15 is fixedly connected to a fourth connecting rod 16, a second slider 17 is fixedly connected to one side of the fourth connecting rod 16, the second slider 17 slides in the first chute 13, and the end of the support rod 15 away from the first support plate 7 is fixedly connected to a second housing 29.

[0028] In one embodiment, a second support plate 21 is fixedly connected to one side of the lower die 5. A second motor 22 is fixedly connected to one side of the second support plate 21. The output end of the second motor 22 is fixedly connected to a half gear 23. A rack 24 is meshed with the outer wall of the half gear 23. One end of the rack 24 away from the lower die 5 is fixedly connected to a second spring 25. The end of the second spring 25 away from the rack 24 is fixedly connected inside the stamping machine tool. A second chute 26 is provided on the lower surface inside the stamping machine tool. The second chute 26 is located directly below the lower die 5. The rack 24 slides in the second chute 26.

[0029] In one embodiment, a first spring 18 and a third spring 27 are fixedly connected inside the second housing 29. One ends of the first spring 18 and the third spring 27 are fixedly connected to a clamping plate 19. A part body 20 is arranged between the two clamping plates 19. The number of the through holes 4 and the sliding rods 6 is multiple. The numbers and positions of the through holes 4 and the sliding rods 6 correspond to each other. The through holes 4 and the sliding rods 6 can assist the upper die 3 and the lower die 5 to be aligned. Two groups of the first spring 18, the third spring 27 and the clamping plate 19 are provided. The two groups of the first spring 18, the third spring 27 and the clamping plate 19 are located on both sides of the part body 20. The two groups of the first spring 18, the third spring 27 and the clamping plate 19 are used to clamp and fix the part body 20. The length of the first spring 18 is greater than the length of the third spring 27. The distance between the ends of the clamping plate 19 close to the outside of the second housing 29 is larger. It is convenient to insert the part body 20 between the clamping plates 19 for fixation. The electro-hydraulic rod 2, the electric telescopic rod 30, the second motor 22 and the first motor 8 are connected to an external power supply.

[0030] When the utility model is working: First, insert the part body 20 into the housing two 29, then start the electric hydraulic rod 2, the electric telescopic rod 30, the motor two 22 and the motor one 8. With the cooperation of the first spring 18 and the third spring 27, the clamping plate 19 clamps and fixes the part body 20. At this time, the electric hydraulic rod 2 extends to drive the upper die 3 to press down, and with the cooperation of the lower die 5, punching is performed on the part body 20. Then, the electric telescopic rod 30 extends, so that the part body 20 moves away from the upper die 3 and the lower die 5. Immediately afterwards, the motor one 8 drives the connecting rod one 9 to rotate, and the rotation of the connecting rod one 9 drives the slider one 10 to rotate. With the cooperation of the connecting rod two 11, the connecting rod three 12 and the first chute 13, the slider one 10 slides in the first chute 13 and at the same time drives the connecting rod three 12 to swing. During the swinging process of the connecting rod three 12, with the cooperation of the support frame 14 and the housing one 28, since the slider two 17 slides in the first chute 13, the slider two 17 slides and rotates downward in the first chute 13. Driven by the slider one 10, the connecting rod three 12 swings left and right relative to the connecting rod two 11. The connecting rod three 12 drives the slider two 17 to rotate 180 degrees, so that the slider two 17 drives the support rod 15 to rotate 180 degrees, thereby flipping the part body 20. Subsequently, the electric telescopic rod 30 shortens to send the part body 20 back between the upper die 3 and the lower die 5. At this time, the electric hydraulic rod 2 extends again to drive the upper die 3 downward, and with the cooperation of the lower die 5, the upper die 3 performs further punching on the part body 20, processing the part twice to prevent the part from deforming. After punching, the waste material falls from the corresponding die hole in the lower die 5 into the second chute 26 directly below the lower die 5. The corresponding die hole is a through hole. At this time, the motor two 22 drives the half gear 23 to rotate. Since the half gear 23 meshes with the rack 24, the half gear 23 drives the rack 24 to slide in the second chute 26 during the rotation process. When the half gear 23 rotates counterclockwise and meshes with the rack 24, the rack 24 slides to the side away from the lower die 5, and at the same time, the rack 24 squeezes the second spring 25. At this time, the second spring 25 is compressed to store elastic potential energy. When the half gear 23 rotates to not mesh with the rack 24, the second spring 25 extends to release the elastic potential energy, thereby pushing the rack 24 through the second spring 25, and the rack 24 pushes the waste material to move the waste material away.

[0031] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various changes or substitutions, and these should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. A die for a numerical control punching machine, characterized in that: It includes that an electro-hydraulic rod (2) is fixedly connected to the inner upper surface of a stamping machine tool. The bottom of the electro-hydraulic rod (2) is fixedly connected to an upper die (3). A through hole (4) is formed in the upper die (3). The inner lower surface of the stamping machine tool is fixedly connected to a lower die (5). A sliding rod (6) is fixedly connected to the upper surface of the lower die (5). The sliding rod (6) slides in the through hole (4). One side of the lower die (5) is fixedly connected to an electric telescopic rod (30). One end of the electric telescopic rod (30) is fixedly connected to a first support plate (7). A second connecting rod (11) is fixedly connected to one side of the first support plate (7). A third connecting rod (12) is rotatably connected to the outer wall of the second connecting rod (11). A first chute (13) is formed in the third connecting rod (12). A first motor (8) is fixedly connected to one side of the first support plate (7). The output end of the first motor (8) passes through the first support plate (7) and is fixedly connected to a first connecting rod (9). A first slider (10) is fixedly connected to one side of the first connecting rod (9). The first slider (10) slides in the first chute (13). A support frame (14) is fixedly connected to one side of the first support plate (7). The top of the support frame (14) is fixedly connected to a first housing (28). A support rod (15) is rotatably connected in the first housing (28). One end of the support rod (15) is fixedly connected to a fourth connecting rod (16). A second slider (17) is fixedly connected to one side of the fourth connecting rod (16). The second slider (17) slides in the first chute (13). The end of the support rod (15) far from the first support plate (7) is fixedly connected to a second housing (29).

2. The die for a numerically controlled punching machine according to claim 1, wherein: One side of the lower die (5) is fixedly connected to a second support plate (21). A second motor (22) is fixedly connected to one side of the second support plate (21). The output end of the second motor (22) is fixedly connected to a semi-gear (23). A rack (24) is meshed with the outer wall of the semi-gear (23). One end of the rack (24) far from the lower die (5) is fixedly connected to a second spring (25). The end of the second spring (25) far from the rack (24) is fixedly connected to the inside of the stamping machine tool. A second chute (26) is formed in the inner lower surface of the stamping machine tool. The second chute (26) is located directly below the lower die (5). The rack (24) slides in the second chute (26).

3. A die for a numerical control punching machine according to claim 1, characterized in that: A first spring (18) and a third spring (27) are fixedly connected to the inner side of the second housing (29). The first spring (18) and the third spring (27) are fixedly connected to a clamping plate (19) at one end. A part body (20) is arranged between the two clamping plates (19).

4. A die for a numerical control punching machine according to claim 1, characterized in that: The number of the through holes (4) and the sliding rods (6) is multiple, and the number and positions of the through holes (4) and the sliding rods (6) correspond to each other.

5. A die for a numerical control punching machine according to claim 3, characterized in that: There are two groups of the first spring (18), the third spring (27) and the clamping plate (19), and the two groups of the first spring (18), the third spring (27) and the clamping plate (19) are located on both sides of the part body (20).

6. The die for a numerical control punching machine according to claim 5, wherein: The length of the first spring (18) is greater than the length of the third spring (27), and the spacing at one end of the clamping plate (19) near the outside of the second housing (29) is relatively large.

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