Internal rotary cutting die

Abstract

The utility model discloses an internal rotary cutting die which comprises an upper die base and a lower die base, the bottom of the upper die base is rotationally connected with a rotating block, the rotating block is provided with a power hole and a profiling female die knife edge, the top of the lower die base is fixedly connected with a profiling male die knife edge, and the profiling male die knife edge and the profiling female die knife edge are oppositely arranged. The top of the lower die base is movably connected with a power shaft, the power shaft is matched with the power hole, a rotary cutting mechanism of a profiling female die knife edge is formed through the arrangement of the rotating block, and then through the arrangement of the power shaft and the power hole, the traditional rotary cutting process from inside to outside is changed into rotary cutting from outside to inside after being transmitted to the rotating block through the power shaft. The outer edge of the end face of the shell is free of burrs, a chamfering and deburring process does not need to be added, direct assembly can be achieved, and the machining efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold rotary cutting, in particular to an internal rotary cutting mold. Background Art

[0002] In the production process of the shell, a rotary cutting process is required. For example, the authorization announcement number CN117732976A is an invention patent for a rotary cutting mold for a battery shell, which includes a shearing punch. During shearing, the shearing punch is located on the inner side of the battery shell, and the lower edge of the shearing punch serves as an inner blade; the lower mold assembly includes a shearing die, and a positioning groove is provided in the center of the shearing die. During shearing, the battery shell is located in the positioning groove, and the upper edge of the positioning groove serves as an outer blade; during shearing, the outer blade is equivalent to the battery shell being horizontally stationary, and the inner blade is equivalent to the battery shell being horizontally offset, and the battery shell is sheared by the outer blade and the inner blade moving in opposite directions.

[0003] However, the working process of the above-mentioned rotary cutting die is to cut from the inside to the outside, and there will be burrs on the outer edge of the end face of the shell, which is not conducive to assembly. Further, a chamfering and deburring process needs to be added, which reduces the processing efficiency. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies, to provide an internal rotary cutting die, and to solve the technical problem that the chamfering and deburring process in the prior art reduces the processing efficiency.

[0005] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides an internal rotary cutting die, comprising:

[0007] An upper die base, wherein the bottom of the upper die base is rotatably connected to a rotating block, and the rotating block is provided with a power hole and a contoured die blade;

[0008] The top of the lower die base is fixedly connected with a profiling punch blade, the profiling punch blade and the profiling die blade are arranged opposite to each other, the top of the lower die base is movably connected with a power shaft, and the power shaft is adapted to the power hole.

[0009] In some embodiments, a contoured pressing material is provided at the bottom of the upper die base, and the contoured pressing material is connected to the contoured die blade.

[0010] In some embodiments, an upper cover plate is fixedly connected to the top of the upper mold base.

[0011] In some embodiments, a pressing rubber is connected between the upper mold base and the upper cover plate.

[0012] In some embodiments, a blade gap adjustment column is fixedly connected to the top of the lower die base.

[0013] In some embodiments, the number of the power holes and the number of the power shafts are both several, and each power hole corresponds to each power shaft one by one.

[0014] In some embodiments, the lower die base is provided with a rocking hole, the inner diameter of the rocking hole is larger than the outer diameter of the power shaft, and the power shaft is movably sleeved in the rocking hole.

[0015] In some embodiments, a ventilation hole is provided on the top of the contoured punch blade.

[0016] In some embodiments, an upper limit column is fixedly connected to the bottom of the upper mold base, and a lower limit column is fixedly connected to the bottom of the lower mold base, and the upper limit column is arranged corresponding to the lower limit column.

[0017] In some embodiments, a slope is formed on the top of the lower mold base.

[0018] Compared with the prior art, the internal rotary cutting die provided by the utility model constitutes a rotary cutting mechanism of the contoured die blade through the setting of the rotating block, and then through the setting of the power shaft and the power hole, the traditional rotary cutting process from the inside to the outside is changed to rotary cutting from the outside to the inside after being transmitted to the rotating block through the power shaft, so that the outer edge of the shell end face is free of burrs, and there is no need to add a chamfering and deburring process, and it can be directly assembled, which effectively improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of an internal rotary cutting die provided by an embodiment of the present utility model;

[0020] Figure 2 yes Figure 1 Side view of

[0021] Figure 3 yes Figure 2 Cross-sectional view of AA in the figure.

[0022] Explanation of the accompanying reference numerals: 1. Upper die base; 11. Rotating block; 111. Power hole; 112. Contour die blade; 12. Contour pressing material; 13. Pressing material rubber; 14. Upper cover plate; 15. Upper limit column; 2. Lower die base; 21. Contour punch blade; 211. Air vent; 22. Power shaft; 23. Blade gap adjustment column; 24. Shaking hole; 25. Lower limit column; 26. Inclined surface; 3. Shell. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] In order to solve the technical problem that the chamfering and deburring process reduces the processing efficiency, the utility model provides an internal rotary cutting die, which can improve the processing efficiency.

[0025] It should be noted that the internal rotary cutting mold described in the present invention is used for but not limited to battery casings, etc. For the sake of convenience, in the present invention, only an internal rotary cutting mold applied to a battery casing is used as an example for explanation. The principle of applying an internal rotary cutting mold to other types of equipment is essentially the same as the principle applied to the battery casing, so they will not be repeated here.

[0026] See also Figure 1 - Figure 3 ,in Figure 1 This is a structural schematic diagram of an internal rotary cutting mold in an embodiment of the present invention. An internal rotary cutting mold includes an upper mold base 1 and a lower mold base 2. The bottom of the upper mold base 1 is rotatably connected to a rotating block 11. The rotating block 11 is provided with a power hole 111 and a profiling die blade 112. The top of the lower mold base 2 is fixedly connected to a profiling punch blade 21. The profiling punch blade 21 and the profiling die blade 112 are arranged opposite to each other. The top of the lower mold base 2 is movably connected to a power shaft 22, and the power shaft 22 is adapted to the power hole 111.

[0027] In this embodiment, through the setting of the rotating block 11, a rotary cutting mechanism of the contoured die blade 112 is formed, and then through the setting of the power shaft 22 and the power hole 111, the traditional rotary cutting process from the inside to the outside is changed to rotary cutting from the outside to the inside after being transmitted to the rotating block 11 through the power shaft 22, so that the outer edge of the end face of the shell 3 is free of burrs, and there is no need to add a chamfering and deburring process, and it can be directly assembled, which effectively improves the processing efficiency.

[0028] Furthermore, the device also achieves chamfering around the end face of the shell 3 through a peeling process from the outside to the inside, and the cross-section bright band is also on the outside, thereby making it easier for staff to control the product size.

[0029] In one embodiment, see Figure 3 The bottom of the upper die base 1 is provided with a profiling pressing material 12, which is communicated with the profiling die blade 112.

[0030] In this embodiment, the function of the contoured pressing material 12 is to adapt to the outer surface of the shell 3 so that the shell 3 is more stable during the peeling process.

[0031] In one embodiment, see Figure 1 - Figure 3 The top of the upper die base 1 is fixedly connected with an upper cover plate 14.

[0032] In this embodiment, the upper cover plate 14 serves to facilitate fixed connection with the peeling machine.

[0033] In one embodiment, see Figure 1 - Figure 3 A pressing rubber 13 is connected between the upper mold base 1 and the upper cover plate 14.

[0034] In this embodiment, the function of the pressing rubber 13 is to press the housing 3 tightly to prevent it from moving.

[0035] In one embodiment, see Figure 1 - Figure 3 A blade clearance adjusting column 23 is fixedly connected to the top of the lower die base 2.

[0036] In this embodiment, the function of the blade clearance adjustment column 23 is to enable the mold to be suitable for processing housings 3 of different materials or thicknesses.

[0037] In one embodiment, see Figure 1 The number of the power holes 111 and the number of the power shafts 22 are both multiple, and each power hole 111 corresponds to each power shaft 22 one by one.

[0038] In this embodiment, the power hole 111 and the power shaft 22 are evenly distributed on the upper die base 1 and the lower die base 2 respectively, so that the power shaft 22 drives the rotating block 11 to run more stably.

[0039] In one embodiment, see Figure 1 The lower die base 2 is provided with a shaking hole 24 , the inner diameter of the shaking hole 24 is larger than the outer diameter of the power shaft 22 , and the power shaft 22 is movably sleeved in the shaking hole 24 .

[0040] In this embodiment, the function of the shaking hole 24 is to allow the bottom end of the power shaft 22 to be connected to the external driving mechanism and then pass through the shaking hole 24, so that the top end of the power shaft 22 can be inserted into the power hole 111, thereby realizing the transmission of the motion trajectory of the power shaft 22 to the rotating block 11, so as to achieve the purpose of keeping the profiling punch blade 21 stationary and the profiling die blade 112 moving.

[0041] In one embodiment, see Figure 2 The top of the profiling punch blade 21 is provided with a vent hole 211.

[0042] In this embodiment, the function of the air holes 211 is to make the product more stable during the peeling process and prevent it from being dislocated due to changes in air pressure.

[0043] In one embodiment, see Figure 1 - Figure 3 The bottom of the upper die base 1 is fixedly connected with an upper limit column 15, and the bottom of the lower die base 2 is fixedly connected with a lower limit column 25. The upper limit column 15 and the lower limit column 25 are arranged correspondingly.

[0044] In this embodiment, there are a plurality of upper limit posts 15 and lower limit posts 25 , and each upper limit post 15 corresponds to each lower limit post 25 . The function of the upper limit posts 15 and the lower limit posts 25 is to limit the height.

[0045] In one embodiment, see Figure 1 - Figure 3 The top of the lower die base 2 is provided with an inclined surface 26 .

[0046] In this embodiment, the function of the inclined surface 26 is to facilitate chip removal.

[0047] In order to better understand the present invention, the following Figures 1 to 3 The technical solution of the utility model is described in detail:

[0048] First, the upper die base 1 is installed on the upper part of the rotary cutter, and the lower die base 2 is installed on the lower part of the rotary cutter, so that the bottom end of the power shaft 22 is connected to the external power mechanism to ensure that each power shaft 22 corresponds to the power hole 111 one by one; then, the shell 3 to be processed is inverted on the top of the profiling punch blade 21, and the external hydraulic press is started to make the upper die base 1 descend until the upper die base 1 and the lower die base 2 are molded, and the upper limit column 15 is fitted with the lower limit column 25. At this time, each power shaft 22 is inserted into each power hole 111; finally, the external power mechanism is started to make each power shaft 22 move and drive the rotating block 11 to move, thereby making the profiling die blade 112 rotary cut the shell 3 from the outside to the inside. The rotary cutting mold in the utility model has no burrs on the outer edge of the end face of the shell 3 that has been rotary cut, and has chamfered edges around it, and the cross-section bright band is also on the outside. There is no need to add a chamfering and deburring process, and it can be directly assembled, which effectively improves the processing efficiency.

[0049] The above specific implementation methods of the utility model do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. An internal rotary cutting die, characterized in that: include: An upper die base, wherein the bottom of the upper die base is rotatably connected to a rotating block, and the rotating block is provided with a power hole and a contoured die blade; The top of the lower die base is fixedly connected with a profiling punch blade, the profiling punch blade and the profiling die blade are arranged opposite to each other, the top of the lower die base is movably connected with a power shaft, and the power shaft is adapted to the power hole.

2. The inner rotary cutting die according to claim 1, characterized in that: A profiling pressing material is provided at the bottom of the upper die seat, and the profiling pressing material is communicated with the profiling die blade.

3. The internal rotary cutting die according to claim 1, characterized in that: An upper cover plate is fixedly connected to the top of the upper die base.

4. The internal rotary cutting die according to claim 3, characterized in that: A pressing rubber is connected between the upper die base and the upper cover plate.

5. The internal rotary cutting die according to claim 1, characterized in that: A knife edge clearance adjusting column is fixedly connected to the top of the lower die base.

6. The internal rotary cutting die according to claim 1, characterized in that: The number of the power holes and the number of the power shafts are both several, and each power hole corresponds to each power shaft one by one.

7. The internal rotary cutting die according to claim 1, characterized in that: The lower die base is provided with a shaking hole, the inner diameter of the shaking hole is larger than the outer diameter of the power shaft, and the power shaft is movably sleeved in the shaking hole.

8. The internal rotary cutting die according to claim 1, characterized in that: A vent hole is provided on the top of the profiling punch blade.

9. The internal rotary cutting die according to claim 1, characterized in that: An upper limit column is fixedly connected to the bottom of the upper die base, and a lower limit column is fixedly connected to the bottom of the lower die base, and the upper limit column is arranged corresponding to the lower limit column.

10. The internal rotary cutting die according to claim 1, characterized in that: The top of the lower die base is provided with an inclined surface.

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