CN211104427U - Slitting die for slitting damping strips of electric brushes - Google Patents
Slitting die for slitting damping strips of electric brushes Download PDFInfo
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- CN211104427U CN211104427U CN201921459533.0U CN201921459533U CN211104427U CN 211104427 U CN211104427 U CN 211104427U CN 201921459533 U CN201921459533 U CN 201921459533U CN 211104427 U CN211104427 U CN 211104427U
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- slitting
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Abstract
The utility model discloses a cutting die for cutting a damping strip of an electric brush, which comprises an upper die and a lower die, wherein the upper die comprises a stripping plate, a stripping insert and a punch head, the stripping insert is fixed inside the stripping plate, and the stripping insert is provided with a first through hole for the punch head to pass through; the lower die comprises a lower die plate and a lower die shear port fixed in the lower die plate, the lower die plate is used for placing an electric brush pasted with a damping strip to be cut, and the lower die shear port is provided with a second through hole communicated with the first through hole; the punch can move towards the direction of the lower template, cut the damping strip to be cut and enter the second through hole. The utility model discloses a cut mould for cutting brush damping strip when cutting the process, need not to cut the back with the damping strip earlier, pastes on the electric brush in proper order again, and machining efficiency is high, and is with low costs and stability good.
Description
Technical Field
The utility model relates to an electric brush field, concretely relates to mould of cutting for cutting electric brush damping strip.
Background
At present, the main structure of a brushed permanent magnet dc motor is: the permanent magnet is fixed on the stator, the winding coil is arranged on the rotor, the stator at one end of the motor is fixed with an electric brush, and the rotor is fixed with a commutator. The electric energy is supplied to an armature winding on the rotor through a brush and a commutator. The motor has the advantages of simple structure, small volume, light weight, large torque, good speed regulation performance, high utilization rate of winding coils, high running efficiency and the like. The disadvantages are that: because the brush root commutator is mechanically commutated, mechanical friction exists, so that the brush root commutator has the fatal defects of noise, sparks, radio interference, service life and the like, and has the defect of difficult maintenance and the like, thereby greatly limiting the application range of the brush root commutator.
Brushes are an important component for introducing direct current from a power source into a rotating brush. Because the brush is fixed and the commutator rotates, the brush is driven continuously, and therefore the vibration reduction degree of the brush determines the service life of the motor. A common vibration damping structure of a brush blade of a small permanent magnet dc motor is to paste a damping bar made of rubber, paper, PET (polyethylene terephthalate), or the like on a brush arm. The damping strips are generally attached to the electric brush through a manual or automatic machine, and no matter the damping strips are attached through the manual or automatic machine, the damping strips are firstly cut into a plurality of damping strips, and then the separated damping strips are respectively attached, so that the problems of low efficiency, high cost and poor stability are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cut mould for cutting brush damping strip aims at solving and pastes again to the brush after earlier cutting the damping strip at present, leads to inefficiency, problem with high costs and poor stability.
In order to achieve the purpose, the utility model provides a cut mould for cutting brush damping strip, including upper die and lower mould, the upper die includes takes off the flitch, takes off material mold insert and drift, take off the material mold insert and be fixed in taking off the inside of flitch, take off the material mold insert and be equipped with the first through-hole that supplies the drift to pass; the lower die comprises a lower die plate and a lower die shear port fixed in the lower die plate, the lower die plate is used for placing an electric brush pasted with a damping strip to be cut, and the lower die shear port is provided with a second through hole communicated with the first through hole; the punch can move towards the direction of the lower template, cut the damping strip to be cut and enter the second through hole.
Preferably, the slitting die for slitting the damping strips of the electric brushes further comprises two guide strips arranged in parallel, the guide strips are arranged on the lower die plate, guide grooves are formed between the two guide strips, and the guide grooves are used for containing the electric brushes adhered with the damping strips to be cut.
Preferably, the bottom of the stripper plate is provided with a groove for accommodating the guide strip when the upper die contacts with the lower die.
Preferably, the upper die further comprises a punch fixing plate, the punch comprises a first end and a second end which are arranged oppositely, the first end is fixed inside the punch fixing plate, and the second end is a knife edge.
Preferably, the upper die further comprises an upper die base and an elastic assembly, the punch fixing plate is located between the upper die base and the stripper plate, one end of the elastic assembly is fixed to the upper die base, and the other end of the elastic assembly is fixed to the stripper plate.
Preferably, the elastic assembly comprises a spring and a dowel bar which are connected with each other, the spring is fixed on the upper die base, and the dowel bar is fixed on the stripper plate.
Preferably, the slitting die for slitting the electric brush damping strips further comprises a punch backing plate, and the punch fixing plate is fixed on the upper die base through the punch backing plate.
Preferably, the slitting die for slitting the damping strips of the electric brushes further comprises a stripping base plate, and the stripping base plate is fixed on one side, deviating from the punch base plate, of the punch fixing plate.
Preferably, the slitting die for slitting the electric brush damping strips further comprises a lower die base plate, and the lower die base plate is fixed at the bottom of the lower die plate.
Preferably, the slitting die for slitting the electric brush damping strips further comprises a lower die base, and the lower die base is fixed to the bottom of the lower die base plate.
The utility model discloses a cut mould for cutting brush damping strip only needs to paste the damping strip that will cut on the brush, and the drift passes and takes off the material mold insert, and when the drift moved to the lower mould along with the cope match-plate pattern, the first through-hole that takes off the material mold insert had the guide effect, made the motion of drift more accurate, did not take place the skew; and the punch moves downwards to enter a second through hole of the lower die shear port, so that one-time cutting of the damping strip to be cut can be realized, and then the position of the electric brush on the lower die plate is moved to perform next-time cutting. The utility model discloses a cut mould for cutting brush damping strip when cutting the process, need not to cut the back with the damping strip earlier, pastes on the electric brush in proper order again, and machining efficiency is high, and is with low costs and stability good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a slitting die for slitting a damping strip of an electric brush according to an embodiment of the present invention;
fig. 2 is an exploded view of a part of the structure of a slitting die for slitting a damping strip of an electric brush according to an embodiment of the present invention;
fig. 3 is an exploded view of another part of the structure of the slitting die for slitting the damping strips of the brushes according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electric brush attached with a cut damping strip according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Upper die | 11 | |
| 111 | |
12 | Stripping insert |
| 121 | First through |
13 | |
| 131 | |
132 | |
| 14 | |
15 | Upper die |
| 16 | |
17 | |
| 2 | Lower die | 21 | Lower die |
| 211 | Second through |
22 | |
| 23 | Lower die |
24 | Lower die |
| 3 | |
31 | |
| 4 | Brush |
5 | Damping strip |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
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 efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
The references to "up" and "down" in the present invention are based on the orientation shown in fig. 1, that is, the references to "up" and "down" in the present invention correspond to the upper and lower orientations of fig. 1, and are only used to explain the relative positional relationship between the components in the posture shown in fig. 1, and if the specific posture is changed, the directional indication is changed accordingly.
The utility model provides a cutting die for cutting a damping strip of an electric brush, as shown in figures 1 and 2, comprising an upper die 1 and a lower die 2, wherein the upper die 1 comprises a stripping plate 11, a stripping insert 12 and a punch 13, the stripping insert 12 is fixed inside the stripping plate 11, and the stripping insert 12 is provided with a first through hole 121 for the punch 13 to pass through; the lower die 2 comprises a lower die plate 22 and a lower die shear port 21 fixed in the lower die plate, the lower die plate is used for placing an electric brush pasted with a damping strip to be cut, and the lower die shear port 21 is provided with a second through hole 211 used for being communicated with the first through hole 121; the punch 13 can be moved in the direction of the lower die plate 22, slitting the damping strip to be cut and entering the second through hole 211.
The brush piece material belt 4 of the electric brush can be obtained by high-speed stamping, the materials are packaged in rolls, the packaged damping strips are attached to the brush piece material belt 4 through a small jig, the brush piece material belt 4 with the attached damping strips is still packaged in rolls, the damping strips are integrated at the moment, the brush piece material belt 4 with the attached damping strips is placed on a lower template 22, an upper die 1 can be installed on a table punching machine, the upper die 1 is driven by the table punching machine to move from top to bottom, when a stripper plate 11 reaches the position of the lower template 22 and abuts against the lower template 22, a punch 13 continues to move downwards under the driving of the table punching machine, the punch 13 enters a second through hole 211 of a lower die shearing mouth 21 positioned inside the lower template 22, namely, the damping strips are cut once, then the positions of the brush piece material belt 4 are moved to cut the next time, as shown in figure 4, the cut damping strips 5 are arranged on the brush pieces without cutting the damping strips firstly, and the electric brushes are attached to the electric brushes one by one, so that the processing efficiency and the stability are improved, and the cost is reduced. The first through hole 121 may have a wide upper end opening and a narrow lower end opening, and is adapted to the shape of the punch 13, the lower end of the first through hole 121 only needs to pass through the lower end of the punch 13, and the second through hole 211 has a narrow width and is adapted to the shape of the lower end of the punch 13.
In an embodiment, as shown in fig. 3, the slitting die for slitting the damping strips of the brushes further comprises two guide strips 3 arranged in parallel, the guide strips 3 are arranged on the lower die plate 22, a guide groove 31 is formed between the two guide strips 3, and the guide groove 31 is used for accommodating the brush to which the damping strip to be slit is attached. After the primary cutting process is completed, the position of the brush piece material belt 4 of the electric brush needs to be moved, the guide groove 31 can enable the moving track of the brush piece material belt 4 to be more accurate, deviation cannot occur, and the stability of the slitting operation is further improved.
Referring to fig. 3, the bottom of the stripper plate 11 is provided with a groove 111, and the groove 111 is used for accommodating the guide bar 3 when the upper die 1 contacts the lower die 2. When taking off flitch 11 and moving down, recess 111 on the flitch 11 just holds gib block 3 for the bottom of taking off flitch 11 can butt at the top of lower bolster 22, improves overall structure's stability, improves the accuracy that drift 13 cut the damping strip.
As shown in fig. 1 and 2, the upper die 1 of the present embodiment further includes a punch fixing plate 14, the punch 13 includes a first end 131 and a second end 132 that are oppositely disposed, the first end 131 is fixed inside the punch fixing plate 14, and the second end 132 is a knife edge. The punch fixing plate 14 is positioned at the upper end of the stripper plate 11, and the edge of the punch 13 is used for cutting the damping strips on the brush piece material belt 4.
The upper die 1 further includes an upper die base 15 and an elastic assembly (not shown), the punch fixing plate 14 is located between the upper die base 15 and the stripper plate 11, one end of the elastic assembly is fixed to the upper die base 15, and the other end of the elastic assembly is fixed to the stripper plate 11. When cutting, the upper die base 15 can be installed on a bench punching machine, the bench punching machine drives the upper die 1 to move downwards until the stripper plate 11 is contacted with the lower die plate 22, the stripper plate 11 cannot move continuously, the upper die base continues to move downwards under the drive of the bench punching machine, the elastic component generates compression deformation, and the punch fixing plate 14 also continues to move downwards along with the upper die base. Accordingly, the punch 13 fixed to the punch fixing plate 14 is also moved downward, and the knife edge of the punch 13 breaks the damping strip and enters the lower die shear 21 inside the lower die plate 22.
Preferably, the elastic assembly comprises a spring and a dowel, which are connected to each other, the spring being fixed to the upper die holder 15 and the dowel being fixed to the stripper plate 11. After the stripper plate 11 abuts against the lower die plate 22, the upper die base and the punch fixing plate 14 continue to move downwards, the spring is compressed and deformed, and the elastic force is transmitted to the stripper plate 11 through the dowel bar. The spring can adopt a rigid spring, the rigid spring can support the gravity of the upper die base under the common condition, and the rigid spring can deform when the punch applies external force.
The slitting die for slitting the brush damping strips in the embodiment further comprises a punch backing plate 16, and the punch fixing plate 14 is fixed on the upper die base 15 through the punch backing plate 16. The punch backing plate 16 is located between the upper die holder 15 and the punch fixing plate 14, and since some inserts are contained in the upper die holder 15, the inserts can be prevented from falling off by providing the punch backing plate 16.
In addition, the slitting die for the damping strips of the slitting brushes in the embodiment further comprises a stripper shim plate 17, and the stripper shim plate 17 is fixed to the side of the punch fixing plate 14, which faces away from the punch shim plate 16. The stripping backing plate 17 can prevent the insert in the punch fixing plate 14 from dropping, and the stability of the structure is improved. It should be noted that, because the spring needs to be compressed and deformed, a certain gap is left between the stripper plate 17 and the stripper plate 11, so that after the stripper plate 11 contacts the lower die plate 22, when the upper die base 15, the punch backing plate 16, the punch fixing plate 14 and the stripper plate 17 continue to move downward, the spring can be deformed, and the distance of the gap is equal to the compression deformation amount of the spring.
Correspondingly, the slitting die for slitting the electric brush damping strips further comprises a lower die base plate 23, and the lower die base plate 23 is fixed at the bottom of the lower die plate. Similarly, the lower die pad 23 serves to prevent the insert inside the lower die plate 22 from falling off.
More preferably, the slitting die for slitting the brush damping strips further comprises a lower die holder 24, and the lower die holder 24 is fixed to the bottom of the lower die backing plate 23. The inside of lower die holder 24 can be provided with the locating hole, and the locating hole can be screw hole or cotter hole, and corresponding setting element can be screw or pin, through the cooperation of setting element and locating hole, fixes lower die holder 24 on the operation panel, strengthens the stability of cutting the process.
The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (10)
1. A slitting die for slitting a damping strip of an electric brush is characterized by comprising an upper die and a lower die, wherein the upper die comprises a stripper plate, a stripper insert and a punch; the lower die comprises a lower die plate and a lower die shear port fixed in the lower die plate, the lower die plate is used for placing an electric brush pasted with a damping strip to be cut, and the lower die shear port is provided with a second through hole communicated with the first through hole; the punch can move towards the direction of the lower template, cut the damping strip to be cut and enter the second through hole.
2. A slitting die for a damping strip of a slitting brush as claimed in claim 1, wherein the slitting die for the damping strip of the slitting brush further comprises two guide strips arranged in parallel, the guide strips are arranged on the lower die plate, a guide groove is formed between the two guide strips, and the guide groove is used for accommodating the brush adhered with the damping strip to be slit.
3. A slitting die for a damping strip of a slitting brush as claimed in claim 2, wherein the stripper plate is provided at a bottom thereof with a groove for receiving the guide strip when the upper die contacts the lower die.
4. A slitting die for a damping strip of a slitting brush as claimed in claim 1, wherein the upper die further comprises a punch holder plate, the punch comprises a first end and a second end which are oppositely arranged, the first end is fixed inside the punch holder plate, and the second end is a knife edge.
5. A slitting die for a damping strip of a slitting brush as claimed in claim 4, wherein the upper die further comprises an upper die base and an elastic assembly, the punch fixing plate is located between the upper die base and a stripper plate, one end of the elastic assembly is fixed to the upper die base, and the other end of the elastic assembly is fixed to the stripper plate.
6. A slitting die for a damping strip of a slitting brush as claimed in claim 5, wherein the resilient assembly comprises a spring and a dowel attached to each other, the spring being fixed to the upper die holder and the dowel being fixed to the stripper plate.
7. A slitting die for a damping strip of a slitting brush as claimed in claim 5, wherein the slitting die for a damping strip of a slitting brush further comprises a punch backing plate, and the punch fixing plate is fixed to the upper die base through the punch backing plate.
8. A slitting die for a damping strip of a slitting brush as claimed in claim 7, wherein the slitting die for a damping strip of a slitting brush further comprises a stripper shim plate fixed to a side of the punch fixing plate facing away from the punch shim plate.
9. A slitting die for a damping strip of a slitting brush as claimed in any one of claims 1 to 8, wherein the slitting die for the damping strip of the slitting brush further comprises a lower die base plate, and the lower die base plate is fixed to the bottom of the lower die plate.
10. A slitting die for a damping strip of a slitting brush as claimed in claim 9, wherein the slitting die for a damping strip of a slitting brush further comprises a lower die holder, and the lower die holder is fixed to the bottom of the lower die backing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921459533.0U CN211104427U (en) | 2019-09-03 | 2019-09-03 | Slitting die for slitting damping strips of electric brushes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921459533.0U CN211104427U (en) | 2019-09-03 | 2019-09-03 | Slitting die for slitting damping strips of electric brushes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211104427U true CN211104427U (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921459533.0U Active CN211104427U (en) | 2019-09-03 | 2019-09-03 | Slitting die for slitting damping strips of electric brushes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211104427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113043608A (en) * | 2021-03-24 | 2021-06-29 | 深圳市金盾兴机电有限公司 | Damping strip pasting jig |
-
2019
- 2019-09-03 CN CN201921459533.0U patent/CN211104427U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113043608A (en) * | 2021-03-24 | 2021-06-29 | 深圳市金盾兴机电有限公司 | Damping strip pasting jig |
| CN113043608B (en) * | 2021-03-24 | 2023-01-13 | 深圳市金盾兴机电有限公司 | Damping strip pasting jig |
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