CN218425079U - Balance plate stamping die - Google Patents
Balance plate stamping die Download PDFInfo
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- CN218425079U CN218425079U CN202222101959.7U CN202222101959U CN218425079U CN 218425079 U CN218425079 U CN 218425079U CN 202222101959 U CN202222101959 U CN 202222101959U CN 218425079 U CN218425079 U CN 218425079U
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- stamping
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- punching
- bottom hole
- balance plate
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Abstract
The utility model discloses a balance plate stamping die, the balance plate has the bottom outlet that runs through, stamping equipment is including the bed die that is formed with the mould recess and the last mould that is located the bed die top, the balance plate is placed in mould groove, go up the stamping workpiece that the mould is including being located the bottom outlet top, along the stamping workpiece towards the direction of bottom outlet, the stamping workpiece has formed the punching press section that several internal diameters gradually reduce in proper order, and the internal diameter of each punching press section all is greater than the internal diameter of bottom outlet, the stamping workpiece is through moving so that each punching press section stretches into bottom outlet department in proper order towards the bottom outlet, in order to form the mounting hole that corresponds with electric motor rotor with the bottom outlet punching press, wherein, the internal diameter of bottom outlet is D, the internal diameter of the punching press section that sets up relatively with the bottom outlet is D, D is 1.1 ~ 1.2. Compare in the mode of CNC processing, directly with dysmorphism hole stamping forming through the mode of punching press, the step is more concise to effectively improve production efficiency.
Description
Technical Field
The utility model belongs to balance plate punching press field, concretely relates to balance plate stamping die.
Background
The balance plates are arranged at two ends of the motor rotor, so that the rotor can be conveniently drilled during dynamic balance test, and the performance of the dynamic balance test is ensured; the balance plate is generally cut into pieces by an aluminum bar, then the balance plate is subjected to turning and sinking, a CNC (computer numerical control) machining mode is usually adopted when special-shaped holes are machined, finally, burrs are removed by a brush, and the balance plate is cleaned and then packaged; however, the procedure of machining the irregular-shaped hole by adopting the CNC is complicated, and the production efficiency cannot be further improved.
SUMMERY OF THE UTILITY MODEL
To foretell not enough, the utility model provides a balance plate stamping die can improve the production efficiency of balance plate.
The utility model discloses a realize through following technical scheme:
a balance plate stamping die, the balance plate has a bottom hole that runs through, stamping die includes the bed die that is formed with the mould recess and is located the bed die top, the balance plate is placed in the mould recess, go up the mould and include the stamping workpiece that is located the bottom hole top, along the stamping workpiece towards the direction of bottom hole, the stamping workpiece forms several interior diameter gradually reduced punching press section in proper order, and the internal diameter of each punching press section all is greater than the internal diameter of bottom hole, the stamping workpiece is through moving towards the bottom hole so that each punching press section stretches into bottom hole in proper order, in order to form the mounting hole that corresponds with electric motor rotor with the bottom hole punching press, wherein, the internal diameter of bottom hole is D, the internal diameter of the punching press section that sets up opposite to the bottom hole is D, D is 1.1 ~ 1.2. Mode through the punching press replaces the mode of CNC processing, and the punching press section has a plurality ofly, and a plurality of punching press sections stretch into in proper order by little to big according to the internal diameter when stretching into to make the size of bottom outlet also crescent, thereby become the dysmorphism hole with the bottom outlet punching press, compare in the mode of CNC processing, directly with dysmorphism hole stamping forming through the mode of punching press, the step is more concise, thereby effectively improve production efficiency.
Further, along the stamping workpiece towards the direction of bottom outlet, the punching section includes first punching press section, is located the second punching press section in first punching press section middle part and is located the third punching press section in second punching press section middle part. The quantity with the punching press section sets up to three for the change of internal diameter also here is the cubic when stamping workpiece and bottom outlet contact, can enough avoid the quantity of punching press section too little to lead to the punching press incomplete, also can avoid the quantity of punching press section too much simultaneously, leads to the internal diameter between the adjacent punching press section to change unobviously, also can increase the degree of difficulty when punching press section shaping.
Furthermore, the difference value between the inner diameters of the first punching section and the second punching section is 0.1-0.3 mm, and the difference value between the inner diameters of the second punching section and the third punching section is 0.5-0.7 mm. Because the third punching press section contacts with the bottom hole at first, consequently make the internal diameter variation between third punching press section and the second punching press section great to the shape of rapid change bottom hole, and first punching press section contacts with the bottom hole at last, consequently suitably dwindles the internal diameter variation range between first punching press section and the second punching press section, thereby make things convenient for the design of bottom hole more, reduced the wearing and tearing of shearing simultaneously, increase stamping equipment's life.
Further, the height of the second punching section along the extending direction of the first punching section is 1.5mm, and the height of the third punching section along the extending direction of the first punching section is 2mm. Because the third punching section firstly contacts with the bottom hole, if the height of the third punching section is too small, the punching effect on the bottom hole is not obvious, and if the height is too large, the time for the second punching section and the first punching section to stretch into can be influenced, and the effect after punching is influenced.
Further, the end of the third punch segment adjacent to the bottom hole is formed with a chamfer. Through setting up the chamfer to lead when the third punching press section gets into, the third punching press section of being convenient for stretches into.
Further, the height of the chamfer was 0.5mm, and the angle of the chamfer to the vertical direction was 20 °. The inner diameter of the chamfer is changed slowly, and the width is increased relatively stably when the chamfer is inserted, so that the quality of the special-shaped hole formed after stamping is ensured.
Furthermore, the first stamping section is provided with a first stamping end connected with the second stamping section, and the distance between the first stamping end and the upper end face of the bottom hole is not less than 2mm under the state that the first stamping end is positioned in the bottom hole. Because first punching press section gets into the bottom outlet at last, and when it got into the bottom outlet, what at first got into just is first punching press end, consequently makes the distance of stretching into of first punching press end not less than 2mm to guarantee the distance that first punching press section stretched into, be convenient for carry out last punching press design through first punching press section to the bottom outlet.
Further, the balance plate is concavely provided with a groove provided with a bottom hole, and the width of the mold groove is smaller than that of the groove. When carrying out the punching press to the balance plate, guarantee the intensity of balance plate, avoid the balance plate fracture to appear.
Drawings
Fig. 1 is a schematic structural view illustrating an exemplary embodiment of a punching apparatus according to the present invention;
FIG. 2 is a schematic top view of an exemplary embodiment of a mid-bottom mold of the present invention;
FIG. 3 is a schematic diagram illustrating an exemplary embodiment of a stamped part according to the present invention;
fig. 4 is a schematic structural diagram illustrating an exemplary embodiment of a balancing plate according to the present invention.
Reference numerals are as follows:
1. balance plate, 2, bed die, 21, mould recess, 3, mould, 31, stamping workpiece, 311, first punching press section, 312, second punching press section, 313, third punching press section.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that the terms of orientation such as left, right, up, down, front and back in the embodiments of the present invention are only relative concepts or are referred to the normal use state of the product, i.e. the traveling direction of the product, and should not be considered as limiting.
In addition, it should be noted that the dynamic terms such as "relative movement" mentioned in the embodiments of the present invention include not only a change in position but also a movement in which a state changes without a relative change in position such as rotation or rolling.
Finally, it is noted that when an element is referred to as being "on" or "disposed" to another element, it can be on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
As shown in fig. 1 to 4, a balance plate stamping die has a through bottom hole, wherein the balance plate described in this application is a semi-finished product after turning an outer circle and a sink table, and a finished product is formed after the balance plate is stamped by the stamping die, deburred by a brush and cleaned; the finished balance plates are arranged at two ends of the motor rotor, so that the rotor can be conveniently drilled during dynamic balance test, and the performance of the dynamic balance test is ensured.
In the application, the stamping equipment comprises a lower die 2 formed with a die groove 21 and an upper die 3 located above the lower die 2, the balance plate 1 is placed at the die groove 21, the upper die 3 comprises a stamping part 31 located above a bottom hole, the stamping part 31 is sequentially formed with a plurality of stamping sections with gradually reduced inner diameters along the direction from the stamping part 31 to the bottom hole, the inner diameter of each stamping section is larger than that of the bottom hole, and the stamping part 31 is moved towards the bottom hole to enable each stamping section to sequentially extend into the bottom hole so as to stamp the bottom hole to form a mounting hole corresponding to the motor rotor, wherein the inner diameter of the bottom hole is D, the inner diameter of the stamping section arranged opposite to the bottom hole is D, and D is 1.1-1.2; in the application, a CNC (computer numerical control) machining mode is replaced by a stamping mode, a plurality of stamping sections are provided, the plurality of stamping sections sequentially extend into the base hole from small to large according to the sequence of inner diameters when extending into the base hole, so that the size of the base hole is gradually increased, the base hole is stamped into the special-shaped hole, compared with the CNC machining mode, the special-shaped hole is directly stamped and formed in a stamping mode, steps are simpler, and production efficiency is effectively improved; wherein, the material of balance plate 1 is the aluminum product, avoids the aperture to kick-back when the punching press to take the sectional type punching press, the fracture area that bottom hole department appears when having reduced the punching press has guaranteed 90% bright band in the dysmorphism hole of punching press play, when installing follow-up off-the-shelf balance plate 1 to rotor department, also can increase the area of contact between dysmorphism hole and the axle.
If the ratio of the inner diameter of the bottom hole to the inner diameter of the stamping section opposite to the bottom hole is too large, the inner diameter of the stamping section opposite to the bottom hole is smaller, and the stamping effect is not obvious when the stamping section firstly enters the bottom hole; the internal diameter of bottom hole and the relative ratio between the internal diameter of the punching press section that sets up with the bottom hole if the undersize, the internal diameter of the punching press section that sets up relative with the bottom hole promptly is great, can't stretch into in the bottom hole fast when carrying out the punching press, leads to the bottom hole department to break easily.
Preferably, the number of the punching sections is three, and in the direction toward the bottom hole of the punching part 31, the punching sections include a first punching section 311, a second punching section 312 located in the middle of the first punching section 311, and a third punching section 313 located in the middle of the second punching section 312; the punching section is used as a contact area between the punching part 31 and the bottom hole, and when the third punching section 313 punches the bottom hole to increase the inner diameter of the bottom hole, the difference between the inner diameter of the bottom hole and the inner diameter of the second punching section 312 is correspondingly reduced, so that the second punching section 312 can be conveniently stretched into the bottom hole, and the stretching of the subsequent first punching section 311 can be assisted; the quantity with the punching press section sets up to three for the change of internal diameter also here is the cubic when stamping workpiece 31 contacts with the bottom outlet, can enough avoid the quantity of punching press section too little to lead to the punching press incomplete, also can avoid the quantity of punching press section too much simultaneously, leads to the internal diameter between the adjacent punching press section to change unobviously, also can increase the degree of difficulty when punching press section shaping.
It can be understood that, because the punching section has a plurality of punching sections, the punching section arranged opposite to the bottom hole is the third punching section, i.e. the ratio between the inner diameter of the bottom hole and the inner diameter of the third punching section is 1.
Preferably, the difference between the inner diameters of the first and second punching sections 311 and 312 is 0.1 to 0.3mm, and the difference between the inner diameters of the second and third punching sections 312 and 313 is 0.5 to 0.7mm. Because the third punching section 313 is firstly contacted with the bottom hole, the inner diameter range between the third punching section 313 and the second punching section 312 is greatly changed, so that the shape of the bottom hole is quickly changed, and the first punching section 311 is finally contacted with the bottom hole, so that the inner diameter range between the first punching section 311 and the second punching section 312 is properly reduced, the bottom hole is more conveniently shaped, the shearing abrasion is reduced, and the service life of the punching equipment is prolonged.
The height of the second punching section 312 along the extending direction of the first punching section 311 is 1.5mm, and the height of the third punching section 313 along the extending direction of the first punching section 311 is 2mm; since the third punching section 313 is first in contact with the bottom hole, if the height of the third punching section 313 is too small, the punching effect on the bottom hole is not obvious, and if the height is too large, the time for the second punching section 312 and the first punching section 311 to extend into the bottom hole is affected, and the effect after punching is affected.
Preferably, a chamfer is formed at the end part of the third punching section 313 adjacent to the bottom hole, and when the third punching section 313 extends into the bottom hole, the third punching section is firstly inserted through the chamfer, so that the third punching section 313 is guided when the third punching section 313 is inserted by arranging the chamfer, and the third punching section 313 is conveniently inserted; it can be understood that since the height of the third punching section 313 is 2mm and the chamfer is formed at the third punching section 313, the height of the chamfer can be made 0.5mm.
Preferably, the angle between the chamfer and the vertical direction is 20 degrees; the inner diameter of the chamfer is changed slowly, and the width is increased relatively stably when the chamfer is inserted, so that the quality of the special-shaped hole formed after stamping is ensured.
The first stamping section 311 is provided with a first stamping end connected with the second stamping section 312, and the distance between the first stamping end and the upper end face of the bottom hole is not less than 2mm under the state that the first stamping end is positioned in the bottom hole; because the first punching section 311 enters the bottom hole at last, and when the first punching section 311 enters the bottom hole, the first punching end enters at first, so that the extending distance of the first punching end is not less than 2mm, the extending distance of the first punching section 311 is ensured, and the last punching and shaping of the bottom hole can be conveniently carried out through the first punching section 311.
A groove with a bottom hole is formed in the balance plate 1 in a recessed mode, and the width of the mold groove 21 is smaller than that of the groove; at first 1 sunken recesses of balance plate are formed with the recess, the bottom hole runs through the upper and lower diapire formation of recess, and mould recess 21 then is used for preventing balance plate 1, width through making mould recess 21 is less than the width of recess, be about to place balance plate 1 when recess mould recess 21 department, the recess that balance plate 1 formed is located mould recess 21's periphery on the horizontal direction, thereby when carrying out the punching press to balance plate 1, guarantee balance plate 1's intensity, avoid balance plate 1 fracture to appear.
When the balance plate 1 is arranged, the balance plate is placed at the lower die 2, the bottom hole corresponds to the die groove 21, and when the stamping part 31 in the upper die 3 stamps the bottom hole, stamped waste materials fall into the die groove 21, so that the balance plate is convenient to clean; and in this application, replace CNC processing through the punching press, effectively improved production efficiency, it is proven through the experiment that the efficiency of production can promote 5 times.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (8)
1. A balance plate stamping die is characterized in that the stamping die comprises a lower die and an upper die, the lower die is formed with a die groove, the upper die is located above the lower die, the balance plate is placed in the die groove, the upper die comprises a stamping part located above the bottom hole, a plurality of stamping sections with gradually reduced inner diameters are sequentially formed on the stamping part along the direction of the stamping part towards the bottom hole, the inner diameter of each stamping section is larger than that of the bottom hole, and the stamping part moves towards the bottom hole to enable each stamping section to sequentially extend into the bottom hole so as to stamp the bottom hole to form a mounting hole corresponding to a motor rotor, wherein the inner diameter of the bottom hole is D, the inner diameter of the stamping section arranged opposite to the bottom hole is D, and D is 1.1-1.2.
2. The balance plate stamping die of claim 1, wherein the stamping sections include a first stamping section, a second stamping section located in a middle of the first stamping section, and a third stamping section located in a middle of the second stamping section in a direction toward the bottom hole along the stamping.
3. The balance plate stamping die of claim 2, wherein the difference between the inner diameters of the first stamping section and the second stamping section is 0.1-0.3 mm, and the difference between the inner diameters of the second stamping section and the third stamping section is 0.5-0.7 mm.
4. The balance plate punching die according to claim 2, wherein the height of the second punching section in the extending direction of the first punching section is 1.5mm, and the height of the third punching section in the extending direction of the first punching section is 2mm.
5. The balance plate stamping die of claim 2, wherein the end of the third stamping segment adjacent the bottom hole is chamfered.
6. The balance plate punching die according to claim 5, wherein the height of the chamfer is 0.5mm, and the angle of the chamfer to the vertical direction is 20 °.
7. The balance plate punching die according to claim 2, wherein the first punching section has a first punching end connected to the second punching section, and the first punching end is located at a distance of not less than 2mm from an upper end surface of the bottom hole in a state where the first punching end is located in the bottom hole.
8. The balance plate punching die according to claim 1, wherein the balance plate recess is formed with a groove in which the bottom hole is provided, and a width of the die groove is smaller than a width of the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222101959.7U CN218425079U (en) | 2022-08-10 | 2022-08-10 | Balance plate stamping die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222101959.7U CN218425079U (en) | 2022-08-10 | 2022-08-10 | Balance plate stamping die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218425079U true CN218425079U (en) | 2023-02-03 |
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ID=85092845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222101959.7U Active CN218425079U (en) | 2022-08-10 | 2022-08-10 | Balance plate stamping die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218425079U (en) |
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2022
- 2022-08-10 CN CN202222101959.7U patent/CN218425079U/en active Active
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