CN211112224U - Coaxial type foldable laser cladding focusing and defocusing amount adjusting device - Google Patents
Coaxial type foldable laser cladding focusing and defocusing amount adjusting device Download PDFInfo
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- CN211112224U CN211112224U CN201922135213.6U CN201922135213U CN211112224U CN 211112224 U CN211112224 U CN 211112224U CN 201922135213 U CN201922135213 U CN 201922135213U CN 211112224 U CN211112224 U CN 211112224U
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- 238000004372 laser cladding Methods 0.000 title claims abstract description 21
- 230000005484 gravity Effects 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000002474 experimental method Methods 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The coaxial type foldable laser cladding focusing and defocusing amount adjusting device comprises a fixed ring, a double-arm oscillating bar and a parallel moving bar; the inner wall of the fixed ring is sleeved on the laser head, the axial lead of the fixed ring is coaxial with the laser head, the end part of the arm rod of the double-arm oscillating bar is hinged to the outer wall of the fixed ring, the double-arm oscillating bar naturally droops under the action of gravity, and the outer side of the arm rod of the double-arm oscillating bar is provided with a main scale; the end part of the arm lever of the parallel movable lever is provided with a swing lever sleeve which is sleeved on the arm lever of the double-arm swing lever in a sliding way; an elastic rod is arranged in the middle of the cross rod of the parallel moving rod, and an auxiliary graduated scale is arranged on the elastic rod. When the device is used, the actual focal length is the basic scale distance, the main scale reading and the auxiliary scale reading. By adopting the technical scheme, the steps of focal length measurement and defocusing amount adjustment in the laser cladding experimental process can be simplified, the operation is convenient, and the precision is higher.
Description
Technical Field
The utility model belongs to the technical field of laser beam machining and specifically relates to a focus and defocus amount adjusting device with collapsible laser cladding of axle type is related to.
Background
The laser cladding technology is a new surface modification technology. It uses high power laser as energy source to melt the additive material and the thin layer on the surface of the base material to achieve metallurgical bonding, and obtains the coating with the characteristics of wear resistance, corrosion resistance, heat resistance, oxidation resistance and the like. The coating prepared by the laser cladding technology has the characteristics of small dilution rate, small deformation, compact structure, good combination of the coating and a matrix, suitability for cladding more materials and the like, thereby having very wide application prospect.
Laser cladding equipment generally has a predetermined laser focal length, that is, the vertical distance from a laser head light outlet to a laser focal point. In the laser cladding experiment process, a laser head needs to be adjusted, so that the distance between a light outlet of the laser head and a processed workpiece is equal to the focal length, the process is called focusing, and the purpose of focusing is to focus a laser beam on the surface of the processed workpiece. In addition, in some laser cladding experiments, a better cladding effect is achieved by defocusing, namely the distance between a laser head light outlet and a processed workpiece is further adjusted on the basis of focusing, and the distance between the adjusted laser focus and the processed workpiece is called defocusing amount.
The common focusing and defocusing amount adjusting mode is that a caliper and a graduated scale are matched for adjustment and measurement, the measuring mode is not only complicated, but also has large errors, particularly when a large number of experiments are carried out, repeated operation is needed, the working efficiency is low, the risk of damaging a laser head exists, and a product needs to be designed to solve the problem.
Disclosure of Invention
The utility model discloses overcoming prior art and focusing and out of focus volume in-process at the laser cladding and adjusting inconvenient problem, providing a focus and out of focus volume adjusting device with the collapsible laser cladding of axle type, through install this adjusting device additional on the laser head, can focus and adjust out of focus volume convenient and fast, measurement numerical value is accurate, effectively guarantees the quality of laser cladding coating.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the device for adjusting the focusing and defocusing amount of the coaxial type foldable laser cladding is characterized in that: the device comprises a fixed ring 1, a double-arm swing rod 2 and a parallel moving rod 3, wherein the double-arm swing rod 2 and the parallel moving rod 3 are both U-shaped, and two ends of a cross rod are respectively connected with an arm rod; the inner wall of the fixed ring 1 is sleeved on the laser head, the axial lead of the fixed ring 1 is coaxial with the laser head, the end part of the arm rod of the double-arm swing rod 2 is hinged to the outer wall of the fixed ring 1, the double-arm swing rod 2 naturally droops under the action of gravity, and the outer side of the arm rod of the double-arm swing rod 2 is provided with a main scale 22; a swing rod sleeve 31 is arranged at the end part of the arm rod of the parallel movable rod 3, the swing rod sleeve 31 is slidably sleeved on the arm rod of the double-arm swing rod 2, an adjustable bolt 32 is arranged on the swing rod sleeve 31, and the swing rod sleeve 31 is tightly screwed on the double-arm swing rod 2 by the adjustable bolt 32; an elastic rod 33 parallel to the arm of the moving rod 3 is arranged in the middle of the cross rod of the parallel moving rod 3, and an auxiliary graduated scale 331 is arranged on the elastic rod 33.
Preferably, the fixing ring 1 comprises an inner ring 11 and an outer ring 12, the inner ring and the outer ring are combined through a clamping groove 14, a rubber gasket 13 is arranged on the inner side of the inner ring 11, and the rubber gasket 13 is sleeved on the laser head.
Preferably, the elastic rod 33 comprises a top baffle and a bottom contact 333, a sleeve is arranged in the middle of the cross rod of the parallel moving rod 3 in a penetrating mode and is parallel to the arm rod of the moving rod 3, the rod body of the elastic rod 33 slidably penetrates through the inner hole of the sleeve, and a spring 332 is arranged between the contact 333 and the sleeve.
Preferably, the end of the arm lever of the double-arm swing link 2 is connected with a connecting key by a screw, and the connecting key is hinged on the outer wall of the fixed ring 1.
Preferably, the inner side of the arm of the two-armed rocker 2 is provided with a longitudinal groove in which the arm of the parallel travel bar 3 is slidably arranged.
By adopting the technical scheme, the adjusting device can be put down for use or folded for recovery, and the normal use of the laser is not influenced after the adjusting device is folded. When focusing, the swinging double-arm oscillating bar 2 is put down to be in a vertical downward state under the action of self gravity, focusing or defocusing amount adjustment is carried out, when the measured focal length is equal to the laser focal length, focusing is finished, and the device can be folded to carry out experiments normally. If the defocusing experiment is carried out, adjustment can be carried out on the basis of focusing, and the adjustment value is the defocusing amount.
Through the setting of inner and outer ring, inner ring 11 can the not unidimensional laser head of adaptation, and rubber packing ring 13 in the inner ring 11 has the effect of antiskid and protection laser head, installs outer loop 12 again after having installed inner ring 11, and is simple convenient quick detachable.
The scales are arranged on two sides of the U-shaped double-arm swing rod 2, the scales on the two sides are kept the same when the U-shaped double-arm swing rod is used, and the measurement precision is further improved while the U-shaped double-arm swing rod is ensured not to touch a laser head. The connecting key 21 is used for assembling the double-arm swing rod 2 and the fixed ring 1.
The U-shaped parallel moving rod 3 is perfectly matched with the U-shaped double-arm oscillating rod 2, and the two oscillating rod sleeves 31 can ensure the measuring precision. The movable elastic rod 33 is used for fine adjustment of the focal length, and meanwhile the elastic body space of the elastic rod 33 can reduce the risk of damage to the laser head due to misoperation.
After the adjustable bolt 32 on the swing rod sleeve 31 is loosened, the parallel moving rod 3 can be freely adjusted; after the desired coarse focus distance is achieved, a reading can be taken after tightening the adjustable bolt 32.
The auxiliary scale 331 is used for fine tuning, and after the contact head 333 touched the processing work piece, compression spring 332 revealed auxiliary scale 331, when the auxiliary scale reading become basic scale distance + main scale reading-laser focus, the completion of focusing.
To sum up, the utility model discloses following beneficial effect has:
when the laser head needs to be focused, the swinging double-arm oscillating bar is put down to be adjusted, when the measured focal length is equal to the laser focal length, focusing is completed, if a defocusing experiment is carried out, adjustment can be carried out on the basis of focusing, and the adjustment value is the defocusing amount. The device application scope is wide, and easy operation is convenient, has reduced the possibility that causes the harm to the laser head to can pack up the device after the measurement is accomplished and fold, do not influence laser equipment's normal use.
Drawings
Fig. 1 is a schematic view of the overall assembly structure of the present invention
Fig. 2 the structure of the fixing ring of the present invention is schematically illustrated
Fig. 3 is a schematic view of the structure of the dual-arm swing link of the present invention
Fig. 4 is a schematic view of the parallel moving rod structure of the present invention
In the above figures: 1-a fixed ring; 11-inner ring; 12-an outer ring; 13-a rubber gasket; 14-a card slot; 2-double arm oscillating bar; 21-a connecting bond; 22-a main scale; 23-a screw; 3-parallel moving rods; 31-a swing rod sleeve; 32-an adjustable bolt; 33-an elastic rod; 331-an auxiliary scale; 332-a spring; 333-contact.
Detailed description of the invention
The description is further described below in conjunction with the appended drawings.
The coaxial type foldable laser cladding focusing and defocusing amount adjusting device comprises a fixing ring 1, a double-arm oscillating bar 2 and a parallel moving bar 3, wherein the double-arm oscillating bar 2 and the parallel moving bar 3 are both U-shaped, and two ends of a cross bar are respectively connected with an arm bar; the inner wall of the fixed ring 1 is sleeved on the laser head, the axial lead of the fixed ring 1 is coaxial with the laser head, the end part of the arm rod of the double-arm swing rod 2 is hinged to the outer wall of the fixed ring 1, the double-arm swing rod 2 naturally droops under the action of gravity, and the outer side of the arm rod of the double-arm swing rod 2 is provided with a main scale 22; a swing rod sleeve 31 is arranged at the end part of the arm rod of the parallel movable rod 3, the swing rod sleeve 31 is slidably sleeved on the arm rod of the double-arm swing rod 2, an adjustable bolt 32 is arranged on the swing rod sleeve 31, and the swing rod sleeve 31 is tightly screwed on the double-arm swing rod 2 by the adjustable bolt 32; an elastic rod 33 parallel to the arm of the moving rod 3 is arranged in the middle of the cross rod of the parallel moving rod 3, and an auxiliary graduated scale 331 is arranged on the elastic rod 33.
The fixing ring 1 comprises an inner ring 11 and an outer ring 12, the inner ring and the outer ring are combined through a clamping groove 14, a rubber gasket 13 is arranged on the inner side of the inner ring 11, and the rubber gasket 13 is sleeved on the laser head. The inner wall of outer ring 12 is equipped with draw-in groove 14, and draw-in groove 14 includes axial section and circumference section, and the axial is the center pin direction of outer ring 12, and the circumference section is connected in the axial section bottom. The outer wall of the inner ring 11 is provided with a protruding pin, when the inner ring 11 is combined with the outer ring 12, the pin is inserted into the axial section of the clamping groove 14, then the inner ring 11 and the outer ring 12 rotate relatively, and the pin is rotated to the axial section, so that the inner ring 11 and the outer ring 12 can be locked with each other.
The elastic rod 33 comprises a top baffle and a bottom contact 333, a sleeve arranged parallel to the arm rod of the moving rod 3 is arranged in the middle of the cross rod of the parallel moving rod 3 in a penetrating mode, the rod body of the elastic rod 33 slidably penetrates through the inner hole of the sleeve, and a spring 332 is arranged between the contact 333 and the sleeve. The radial dimension of the baffle is larger than the diameter of the inner hole of the sleeve, so that the long rod is prevented from sliding out of the inner hole of the sleeve.
The end part of the arm lever of the double-arm swing rod 2 is connected with a connecting key by a screw, and the connecting key is hinged on the outer wall of the fixed ring 1.
The inner side of the arm rod of the double-arm swing rod 2 is provided with a longitudinal groove, and the arm rod of the parallel moving rod 3 is arranged in the longitudinal groove in a sliding way.
The method for using the device of the utility model comprises the following steps:
as shown in fig. 1-4, the coaxial foldable laser cladding focusing and defocusing amount adjusting device comprises a fixed ring, a double-arm swing rod and a parallel moving rod. Before an experiment, the integral device is arranged on a laser head by using a fixing ring, the fixing ring is divided into an inner ring and an outer ring, the size of the inner ring can be selected and is used for adapting to the laser heads with different sizes, a rubber gasket is arranged on the inner side of the inner ring and can be directly sleeved on the laser head, and the inner ring and the outer ring are matched through a clamping groove;
the U-shaped double-arm oscillating bar is matched with the fixed ring through the connecting key, the connecting key is firstly installed on the fixed ring, then the double-arm oscillating bar is sleeved into the connecting key, and the double-arm oscillating bar and the connecting key are fixed through screws to realize matching. Scales are arranged on two sides of the double-arm oscillating bar, and the scales on the two sides are reset to zero by adjusting the parallel moving bar before use;
when focusing is needed, the swinging double-arm swing rod is put down to enable the swinging double-arm swing rod to be in a vertical downward state under the action of self gravity, the red light of the laser head is aligned to the elastic rod, and the distance between the contact head and the laser head at the moment is recorded as a basic gauge length. An adjustable bolt is arranged on the oscillating bar sleeve, the adjustable bolt is unscrewed to adjust the parallel moving rod to a specific position, the degree of scales on two sides is kept the same, the adjustable bolt is screwed, and the reading of the main scale at the moment is recorded;
the middle of the bottom of the U-shaped parallel moving rod is provided with a movable elastic rod, and the elastic rod comprises a contact head, a spring and an auxiliary graduated scale and is used for fine adjustment of focal length. Controlling a laser head driving device to focus, pushing an elastic rod constrained by a spring to move upwards to expose an auxiliary scale after a contact head contacts a processing workpiece, and then obtaining the reading of the auxiliary scale;
after focusing is finished, the device can be retracted to carry out experiments normally. If the defocus experiment is performed, the corresponding focal length adjustment can be performed on the basis of focusing, and the adjustment value is the defocus amount.
The embodiments described in this specification are merely exemplary embodiments of the present invention, and the scope of the present invention should not be considered limited to the specific embodiments described in the embodiments, and all the technical solutions under the spirit of the present invention belong to the scope of the present invention.
Claims (5)
1. The device for adjusting the focusing and defocusing amount of the coaxial type foldable laser cladding is characterized in that: the device comprises a fixed ring (1), a double-arm swing rod (2) and a parallel moving rod (3), wherein the double-arm swing rod (2) and the parallel moving rod (3) are both U-shaped, and two ends of a cross rod are respectively connected with an arm rod; the inner wall of the fixed ring (1) is sleeved on the laser head, the axial lead of the fixed ring (1) is coaxial with the laser head, the end part of the arm rod of the double-arm swing rod (2) is hinged to the outer wall of the fixed ring (1), the double-arm swing rod (2) naturally sags under the action of gravity, and the outer side of the arm rod of the double-arm swing rod (2) is provided with a main scale (22); a swing rod sleeve (31) is arranged at the end part of an arm rod of the parallel moving rod (3), the swing rod sleeve (31) is slidably sleeved on the arm rod of the double-arm swing rod (2), an adjustable bolt (32) is arranged on the swing rod sleeve (31), and the swing rod sleeve (31) is tightly screwed on the double-arm swing rod (2) by the adjustable bolt (32); an elastic rod (33) which is parallel to the arm rod of the moving rod (3) is arranged in the middle of the cross rod of the parallel moving rod (3), and an auxiliary graduated scale (331) is arranged on the elastic rod (33).
2. The coaxial type foldable laser cladding focusing and defocusing amount adjusting device of claim 1, wherein: the fixing ring (1) comprises an inner ring (11) and an outer ring (12), the inner ring and the outer ring are combined through a clamping groove (14), a rubber gasket (13) is arranged on the inner side of the inner ring (11), and the rubber gasket (13) is sleeved on the laser head.
3. The coaxial type foldable laser cladding focusing and defocusing amount adjusting device as claimed in claim 1 or 2, wherein: the elastic rod (33) comprises a baffle at the top and a contact head (333) positioned at the bottom, a sleeve parallel to an arm rod of the moving rod (3) is arranged in the right middle of a cross rod of the parallel moving rod (3) in a penetrating mode, the contact head (333) is connected with one end of a long rod, a rod body of the elastic rod (33) can penetrate through an inner hole of the sleeve in a sliding mode, and a spring (332) is arranged between the contact head (333) and the sleeve.
4. The coaxial type foldable laser cladding focusing and defocusing amount adjusting device of claim 3, wherein: the end part of the arm lever of the double-arm swing rod (2) is connected with a connecting key by a screw, and the connecting key is hinged on the outer wall of the fixed ring (1).
5. The coaxial type foldable laser cladding focusing and defocusing amount adjusting device of claim 3, wherein: the inner side of the arm rod of the double-arm swing rod (2) is provided with a longitudinal groove, and the arm rod of the parallel moving rod (3) is slidably arranged in the longitudinal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922135213.6U CN211112224U (en) | 2019-12-03 | 2019-12-03 | Coaxial type foldable laser cladding focusing and defocusing amount adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922135213.6U CN211112224U (en) | 2019-12-03 | 2019-12-03 | Coaxial type foldable laser cladding focusing and defocusing amount adjusting device |
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| Publication Number | Publication Date |
|---|---|
| CN211112224U true CN211112224U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922135213.6U Withdrawn - After Issue CN211112224U (en) | 2019-12-03 | 2019-12-03 | Coaxial type foldable laser cladding focusing and defocusing amount adjusting device |
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| CN (1) | CN211112224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747468A (en) * | 2019-12-03 | 2020-02-04 | 浙江工业大学 | Coaxial type foldable laser cladding focusing and defocusing amount adjusting device |
-
2019
- 2019-12-03 CN CN201922135213.6U patent/CN211112224U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747468A (en) * | 2019-12-03 | 2020-02-04 | 浙江工业大学 | Coaxial type foldable laser cladding focusing and defocusing amount adjusting device |
| CN110747468B (en) * | 2019-12-03 | 2024-03-26 | 浙江工业大学 | Coaxial type foldable laser cladding focusing and defocusing amount adjusting device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200728 Effective date of abandoning: 20240326 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200728 Effective date of abandoning: 20240326 |