CN210475842U - Voice coil driving device and laser processing system - Google Patents
Voice coil driving device and laser processing system Download PDFInfo
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- CN210475842U CN210475842U CN201921340387.XU CN201921340387U CN210475842U CN 210475842 U CN210475842 U CN 210475842U CN 201921340387 U CN201921340387 U CN 201921340387U CN 210475842 U CN210475842 U CN 210475842U
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- moving assembly
- pilot hole
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- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 11
- 238000003754 machining Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 12
- 239000010935 stainless steel Substances 0.000 description 12
- 238000003825 pressing Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model relates to a voice coil driving device and a laser processing system, which comprises a galvanometer motor; the cam is connected with a power shaft of the galvanometer motor; the flexible connecting piece is wound on the cam and fixed and can synchronously rotate along with the cam; and the two ends of the flexible connecting piece are fixedly arranged on the moving assembly at intervals respectively, so that the vibrating lens on the moving assembly can be driven to perform reciprocating linear movement. Because the power of the galvanometer motor is transmitted to the moving component through the cam, and the driving arm of the cam is short, the load born by the galvanometer motor is small; in addition, the cam is directly sleeved on a power shaft of the galvanometer motor, so that looseness cannot occur, and the stability of the whole driving structure is good; finally, the flexible connecting piece is connected with the moving assembly, a flexible connection relation is formed between the flexible connecting piece and the moving assembly, the moving assembly cannot impact the motor when moving in a reciprocating mode, and the influence on the working performance and the service life of the motor can be avoided.
Description
Technical Field
The utility model relates to a laser beam machining technical field especially relates to a voice coil loudspeaker voice coil drive arrangement and laser beam machining system.
Background
When a laser processing system is used to process a product, a voice coil driver is usually used to drive a vibrating lens to linearly reciprocate within a small range so as to achieve automatic focusing. The existing voice coil driver is generally connected with a connecting rod through a vibrating mirror motor, and drives a sliding block and a mirror base to reciprocate on a sliding rail through the connecting rod, and the traditional driving structure has the following defects: the driving arm of the connecting rod is long and the mass of the component is large, so that the motor load is overlarge; the connecting rod is connected with the connecting shaft through a bearing, the coaxiality is not easy to guarantee, and papermaking parts are easy to loosen, so that the stability of the whole structure of the voice coil driver is poor; and because the motor is rigidly connected with the sliding block, the sliding block can impact the motor when moving back and forth, so that the performance of the motor is reduced, and the service life is shortened.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a voice coil loudspeaker voice coil drive arrangement and laser beam machining system, it is big to aim at solving the motor load that prior art exists, and the motor receives to strike and leads to performance and life-span reduction, the poor problem of structural stability.
The application provides a voice coil loudspeaker voice coil drive arrangement and laser beam machining system of implementation, it includes
A galvanometer motor;
the cam is connected with a power shaft of the galvanometer motor;
the flexible connecting piece is wound on the cam and fixed and can synchronously rotate along with the cam; and
and the two ends of the flexible connecting piece are fixedly arranged on the moving assembly at intervals respectively, so that the vibrating lens on the moving assembly can be driven to perform reciprocating linear movement.
In one embodiment, the flexible connecting piece is a steel belt, the voice coil driving device further comprises a first fastener, a second fastener and a third fastener, a first assembling hole is formed in the middle of the steel belt, a second assembling hole opposite to the first assembling hole is formed in the rear portion of the cam, and the first fastener is arranged in the first assembling hole and the second assembling hole in a penetrating mode and fixed; the removal subassembly include the guide rail, and slide set up in fixed block on the guide rail, third pilot hole and fourth pilot hole have been seted up respectively to the both ends of fixed block, the one end of steel band seted up with the fifth pilot hole that the third pilot hole is relative, the other end of steel band seted up with the sixth pilot hole that the fourth pilot hole is relative, the second fastener is worn to locate the third pilot hole with the fifth pilot hole internal fixation, the third fastener is worn to locate the fourth pilot hole with the sixth pilot hole internal fixation.
In one embodiment, the convex surface portion of the cam is in rolling contact with the fixed block.
In one embodiment, the voice coil driving device further includes a first presser piece that presses one end of the steel strip against one end surface of the fixed piece, and a second presser piece that presses the other end of the steel strip against the other end surface of the fixed piece.
In one embodiment, the moving assembly further comprises a mirror base, and the mirror base is locked on the fixing block through a bolt.
In one embodiment, the moving assembly further comprises a sliding block, and the sliding block is arranged on the fixed block and is in sliding fit with the guide rail.
In one embodiment, the moving assembly further comprises a rolling body disposed on the fixed block and in rolling engagement with the guide rail.
In one embodiment, the voice coil driving apparatus further includes a base, and the galvanometer motor, the cam and the moving component are respectively disposed at preset positions on the base.
In one embodiment, the voice coil driving device further includes a first limiting block and a second limiting block, the first limiting block and the second limiting block are arranged on the base at intervals and are respectively located at two ends of the guide rail, and both the first limiting block and the second limiting block can abut against the fixing block.
Implement the embodiment of the utility model provides a, will have following beneficial effect:
when the voice coil driving device is adopted to drive the vibrating lens to do reciprocating linear movement for focusing operation, the vibrating lens motor can output clockwise or anticlockwise rotary driving force, and the cam is synchronously driven to rotate clockwise or anticlockwise. Because the cam is fixed with the flexible connecting piece in a winding way, and the two ends of the flexible connecting piece are fixedly arranged on the moving assembly at intervals respectively, the pulling force in two directions on a straight line can be applied to the moving assembly, and then the purpose of driving the vibrating lens on the moving assembly to perform reciprocating movement can be realized, and finally the focusing operation is completed. In the driving structure, the power of the galvanometer motor is transmitted to the moving assembly through the cam, and the driving arm of the cam is short and light in weight, so that the load born by the galvanometer motor is small; in addition, the cam is directly sleeved on a power shaft of the galvanometer motor, the structure is compact, looseness cannot occur, and the stability of the whole driving structure is good after the cam is connected with the moving assembly through the flexible connecting piece; finally, the flexible connecting piece is connected with the moving assembly, and a flexible connection relation is formed between the flexible connecting piece and the moving assembly, so that the moving assembly does not impact the vibrating mirror motor when moving back and forth, and the influence on the working performance and the service life of the vibrating mirror motor can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 these drawings without creative efforts.
Wherein: 10. the device comprises a galvanometer motor, 20, a cam, 30, a flexible connecting piece, 40, a moving assembly, 41, a guide rail, 42, a fixed block, 43, a mirror base, 44, a sliding block, 50, a first pressing block, 60, a second pressing block, 70, a base, 80, a first limiting block, 90 and a second limiting block;
fig. 1 is a schematic structural diagram of a voice coil driving apparatus according to an embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly 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. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The present application claims a laser machining system, which as can be appreciated can be a laser welding system, a laser milling system, a laser engraving system, or the like. It mainly includes laser generator, voice coil loudspeaker voice coil drive arrangement and shakes the lens etc. shakes the lens and installs on voice coil loudspeaker voice coil drive arrangement and can be driven on sharp orbit reciprocating motion (or reciprocating swing on pitch arc orbit, and this scheme mainly records sharp reciprocating motion's mode and gives first place to) to carry out focusing operation to the laser beam that laser generator sent.
In one embodiment, the voice coil driving apparatus includes a base 70, a galvanometer motor 10, a cam 20, a flexible connecting member 30, and a moving assembly 40, where the moving assembly 40 specifically includes a mirror base 43, a slider 44, a guide rail 41, and a fixing block 42.
Specifically, the galvanometer motor 10, the cam 20, the slider 44, the guide rail 41, and the fixed block 42 are respectively installed at preset positions on the base 70. In this embodiment, the base 70 is substantially a cube structure, wherein a receiving groove is concavely formed on one side surface, and a step plate is disposed below the receiving groove. The top end of the base 70 is provided with a hoop (two hoop blocks and a bolt assembly), and the galvanometer motor 10 is vertically clamped and fixed in the hoop, so that the galvanometer motor can be firmly installed; at this time, the power shaft of the galvanometer motor 10 extends into the accommodating groove. The cam 20 is connected with the power shaft of the galvanometer motor 10 and is positioned in the accommodating groove.
The guide rail 41 is laid on the step plate in the width direction of the base 70 and is locked and fixed by bolts. The sliding block 44 is disposed on the fixing block 42 and is in sliding fit with the guide rail 41. The lens base 43 is locked on the fixing block 42 by bolts. The galvanometer lens is arranged on the lens base 43, and is reliable and stable in installation and convenient to assemble and disassemble.
The flexible connecting piece 30 is fixedly wound on the cam 20 and can synchronously rotate along with the cam 20; two ends of the flexible connecting piece 30 are respectively and fixedly arranged on the fixing block 42 at intervals, so that the vibrating lens can be driven to move linearly and reciprocally.
Implement the embodiment of the utility model provides a, will have following beneficial effect: when the voice coil driving device is used for driving the galvanometer piece to perform reciprocating linear movement to perform focusing operation, the galvanometer motor 10 can output clockwise or anticlockwise rotary driving force, and the cam 20 is synchronously driven to rotate clockwise or anticlockwise. Because the cam 20 is fixedly wound with the flexible connecting piece 30, and two ends of the flexible connecting piece 30 are fixedly arranged on the fixed block 42 at intervals respectively, the fixed block 42 can be pulled in two directions linearly; and because the fixed block 42 is connected with the guide rail 41 through the slider 44, under the guiding action of the guide rail 41, the fixed block 42 can drive the lens base 43 thereon and the galvanometer lens to reciprocate, and finally the focusing operation is completed. In the above driving structure, the power of the galvanometer motor 10 is transmitted to the moving assembly 40 through the cam 20, and the driving power arm of the cam 20 is short and light in weight, so that the load borne by the galvanometer motor 10 is small; in addition, the cam 20 is directly sleeved on a power shaft of the galvanometer motor 10, the structure is compact, looseness cannot occur, and the stability of the whole driving structure is good after the cam is connected with the moving assembly 40 through the flexible connecting piece 30; finally, the flexible connection member 30 is connected with the moving assembly 40, and a flexible connection relationship is formed between the flexible connection member 30 and the moving assembly 40, so that the moving assembly 40 does not impact the galvanometer motor 10 during reciprocating movement, and the working performance and the service life of the galvanometer motor 10 are prevented from being affected.
It should be understood that the flexible connecting member 30 is a flexible connecting member that can deform itself when subjected to a pulling force with a direction change applied by the galvanometer motor 10 and the cam 20.
In one embodiment, the flexible connector 30 is a steel band, preferably a stainless steel band; of course, in other embodiments, the flexible connector 30 may be a steel cable, a nylon cord (belt), or the like. The voice coil driving device further comprises a first fastener, a second fastener and a third fastener, optionally, the first fastener, the second fastener and the third fastener are bolts (or threaded connectors such as screws); a first assembling hole is formed in the middle of the steel belt, a second assembling hole opposite to the first assembling hole is formed in the rear part of the cam 20, and the first fastener is fixedly arranged in the first assembling hole and the second assembling hole in a penetrating mode; third pilot hole and fourth pilot hole have been seted up respectively at the both ends of fixed block 42, the one end of steel band seted up with the fifth pilot hole that the third pilot hole is relative, the other end of steel band seted up with the sixth pilot hole that the fourth pilot hole is relative, the second fastener is worn to locate the third pilot hole with the fifth pilot hole internal fixation, the third fastener is worn to locate the fourth pilot hole with the sixth pilot hole internal fixation. Alternatively, the first, third and sixth fitting holes are through holes, and the second, fourth and fifth fitting holes are screw holes, so that bolts can be screwed with the screw holes after passing through the through holes, thereby fixedly connecting the stainless steel band with the cam 20, and fixedly connecting the stainless steel band with the fixing block 42.
It can be understood that the bolt connection point of the stainless steel band and the cam 20 is divided, and the left and right sections of the stainless steel band connected to the fixing block 42 are divided into a first connection section and a second connection section. When the power shaft of the galvanometer motor 10 drives the cam 20 to rotate towards the direction of the first connecting section, the first connecting section and the second connecting section are simultaneously pulled, so that the fixed block 42 and the sliding block 44 are pulled to slide on the guide rail 41 towards one end of the guide rail 41. Similarly, when the power shaft of the galvanometer motor 10 drives the cam 20 to rotate towards the second connecting section, the fixing block 42 and the sliding block 44 can be correspondingly pulled to slide on the guide rail 41 towards the other end of the guide rail 41. Thus, the galvanometer motor 10 continuously changes the direction of the rotating power, so that the reciprocating linear movement of the galvanometer lens can be realized.
Of course, in other embodiments, in order to realize the linear reciprocating movement of the galvanometer motor 10, other driving structures in the prior art can be adopted, and are also within the protection scope of the present application.
Particularly, after the cam 20 is connected with the power shaft of the galvanometer motor 10, the convex surface part of the cam 20 is required to be in rolling contact with the fixed block 42. Therefore, the linear motion of the fixed block 42 can be matched with the rotation of the cam 20, the contact friction resistance of the cam 20 and the fixed block 42 is effectively reduced, and the abrasion is further reduced.
Further, when the cam 20 pulls the stainless steel strip to drive the fixing block 42 to move, the pulling force is concentrated at the fifth assembly hole and the sixth assembly hole at the two ends of the stainless steel strip, so as to avoid tearing the edge of the hole due to excessive stress, and disconnect the stainless steel strip from the fixing block 42, the voice coil driving device further comprises a first pressing block 50 and a second pressing block 60, the first pressing block 50 presses one end of the stainless steel strip onto one end surface of the fixing block 42, and the second pressing block 60 presses the other end of the stainless steel strip onto the other end surface of the fixing block 42. Through setting up first briquetting 50 and second briquetting 60, can increase the area of contact of the both ends of stainless steel band and fixed block 42, and then just can be with pulling force homodisperse to the contact surface on, and then just can prevent that the torn problem of hole limit from taking place.
In another embodiment, as an alternative to the above-mentioned sliding manner of the slider 44 and the guide rail 41, the moving assembly 40 further includes a rolling body, which is disposed on the fixed block 42 and is in rolling engagement with the guide rail 41. Therefore, the resistance of the rolling moving mode is smaller, the reciprocating movement of the galvanometer piece can be smoother, and the load of the galvanometer motor 10 is further favorably reduced. It will be appreciated that the rolling elements may be rollers, bearings, etc.
In addition, the voice coil driving device further includes a first limiting block 80 and a second limiting block 90, the first limiting block 80 and the second limiting block 90 are disposed on the base 70 at intervals and located at two ends of the guide rail 41 respectively, and the first limiting block 80 and the second limiting block 90 can abut against the fixing block 42. Therefore, the first limit block 80 and the second limit block 90 can limit the two limit positions of the reciprocating movement of the fixed block 42, so as to prevent the stainless steel belt from being pulled and broken or prevent the sliding block 44 from falling off from the guide rail 41.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A voice coil driving device is characterized by comprising
A galvanometer motor;
the cam is connected with a power shaft of the galvanometer motor;
the flexible connecting piece is wound on the cam and fixed and can synchronously rotate along with the cam; and
and the two ends of the flexible connecting piece are fixedly arranged on the moving assembly at intervals respectively, so that the vibrating lens on the moving assembly can be driven to perform reciprocating linear movement.
2. The voice coil driving device according to claim 1, wherein the flexible connecting member is a steel band, the voice coil driving device further comprises a first fastening member, a second fastening member and a third fastening member, a first assembling hole is formed in the middle of the steel band, a second assembling hole opposite to the first assembling hole is formed in the rear portion of the cam, and the first fastening member is inserted into the first assembling hole and the second assembling hole to be fixed; the removal subassembly include the guide rail, and slide set up in fixed block on the guide rail, third pilot hole and fourth pilot hole have been seted up respectively to the both ends of fixed block, the one end of steel band seted up with the fifth pilot hole that the third pilot hole is relative, the other end of steel band seted up with the sixth pilot hole that the fourth pilot hole is relative, the second fastener is worn to locate the third pilot hole with the fifth pilot hole internal fixation, the third fastener is worn to locate the fourth pilot hole with the sixth pilot hole internal fixation.
3. The voice coil driving device according to claim 2, wherein the convex surface portion of the cam is in rolling contact with the fixed block.
4. The voice coil driving device according to claim 2, further comprising a first presser that presses one end of the steel band against one end surface of the fixing block, and a second presser that presses the other end of the steel band against the other end surface of the fixing block.
5. The voice coil drive of claim 2, wherein the moving assembly further comprises a mirror mount, the mirror mount being bolted to the fixed block.
6. The voice coil drive apparatus of claim 5, wherein the moving assembly further comprises a slider disposed on the fixed block and slidably engaged with the guide rail.
7. The voice coil drive of claim 5, wherein the moving assembly further comprises rolling elements disposed on the fixed block and in rolling engagement with the guide rail.
8. The voice coil driving apparatus according to any one of claims 2 to 7, further comprising a base, wherein the galvanometer motor, the cam, and the moving assembly are respectively disposed at predetermined positions on the base.
9. The voice coil driving device according to claim 8, further comprising a first limiting block and a second limiting block, wherein the first limiting block and the second limiting block are disposed on the base at intervals and located at two ends of the guide rail respectively, and both the first limiting block and the second limiting block can abut against the fixing block.
10. A laser machining system comprising a voice coil drive as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921340387.XU CN210475842U (en) | 2019-08-14 | 2019-08-14 | Voice coil driving device and laser processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921340387.XU CN210475842U (en) | 2019-08-14 | 2019-08-14 | Voice coil driving device and laser processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210475842U true CN210475842U (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921340387.XU Active CN210475842U (en) | 2019-08-14 | 2019-08-14 | Voice coil driving device and laser processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210475842U (en) |
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2019
- 2019-08-14 CN CN201921340387.XU patent/CN210475842U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231128 Address after: 518000 Building 401, Building 4, Chongqing Road, Han's Laser Industrial Park, Heping Community, Fuyong Street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN HAN'S SCANNER S&T Co.,Ltd. Address before: 518000 No. 9988 Shennan Road, Nanshan District, Shenzhen, Guangdong Patentee before: HAN'S LASER TECHNOLOGY INDUSTRY GROUP Co.,Ltd. Patentee before: SHENZHEN HAN'S SCANNER S&T Co.,Ltd. |
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| TR01 | Transfer of patent right |