CN220241132U - Frock clamp suitable for cylindrical optical element centering edging - Google Patents
Frock clamp suitable for cylindrical optical element centering edging Download PDFInfo
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- CN220241132U CN220241132U CN202321914580.6U CN202321914580U CN220241132U CN 220241132 U CN220241132 U CN 220241132U CN 202321914580 U CN202321914580 U CN 202321914580U CN 220241132 U CN220241132 U CN 220241132U
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- optical element
- cylindrical optical
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- block
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- 230000003287 optical effect Effects 0.000 title claims abstract description 68
- 238000007688 edging Methods 0.000 title claims abstract description 41
- 238000005452 bending Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
Frock clamp suitable for cylindrical optical element centering edging includes: the device comprises a base, a first positioning mechanism, a carrier and a locking mechanism; the first positioning mechanism and the locking mechanism are matched and arranged on the base, and the carrier is fixedly clamped on the base by the matching; the carrier is for carrying the cylindrical optical element. According to the tooling fixture provided by the utility model, the carrier for carrying the cylindrical optical element, the positioning block and the locking block are clamped by the wedge-shaped surfaces, and the cylindrical optical element is prevented from moving in the edging process by the second positioning mechanism, so that the centering precision of the cylindrical optical element in the edging process is greatly improved.
Description
Technical Field
The utility model relates to the technical field of tool clamps, in particular to a tool clamp suitable for centering and edging a cylindrical optical element.
Background
Cylindrical optics are typically non-rotationally symmetric aspheric optics with meridional and sagittal cross-sections having distinct focusing capabilities, which makes them widely used in beam shaping systems, such as in intense laser systems. In order to ensure the consistency of the optical axis of the optical system, the cylindrical optical element needs to be centered and edging. The existing optical centering edging device has poor centering precision on the cylindrical optical element or complex centering process. Therefore, the utility model provides the fixture suitable for centering and edging the cylindrical optical element, and the accurate machining and the high-efficiency detection in the centering and edging process of the cylindrical optical element can be realized.
Disclosure of Invention
Because the centering accuracy of the traditional centering edging device on the cylindrical optical element is poor or the centering process is complex, aiming at the technical defects of the traditional centering edging device on the cylindrical optical element, the utility model provides the fixture suitable for centering edging of the cylindrical optical element, the fixture can improve the centering accuracy of the cylindrical optical element, and reliable conditions are provided for accurate processing of centering edging of the cylindrical optical element according to feedback of detection data.
The technical scheme provided by the utility model is as follows:
the utility model provides a fixture suitable for centering and edging a cylindrical optical element, which comprises: the device comprises a base, a first positioning mechanism, a carrier and a locking mechanism;
the first positioning mechanism and the locking mechanism are matched and arranged on the base, and the carrier is fixedly clamped on the base by matching;
the carrier is for carrying the cylindrical optical element.
Further preferably, the first positioning mechanism comprises a positioning block, the locking mechanism comprises a locking block, the positioning block and the locking block are oppositely arranged on the base, and the carrier is clamped between the positioning block and the locking block.
Further preferably, the clamping surfaces of the positioning block and the carrier, which are directly clamped with each other, are wedge-shaped surfaces, respectively, and the clamping surfaces of the locking block and the carrier, which are directly clamped with each other, are wedge-shaped surfaces, respectively.
Further preferably, the base comprises a first step and a second step from top to bottom in sequence, the step surface of the second step is protruded from the first step, the locking block is arranged on the side surface of the first step through the step surface of the second step, the positioning block is arranged on the step surface of the first step relative to the locking block, and the carrier is clamped on the step surface of the first step by the positioning block and the locking block.
Further preferably, the locking block is provided with a first bending part, a second bending part and a vertical part between the first bending part and the second bending part, the first bending part is propped against the carrier, the second bending part is propped against the step surface of the second step, and the vertical part is fixedly arranged on the side surface of the first step.
Further preferably, the device further comprises a second positioning mechanism, wherein the second positioning mechanism is arranged on the step surface of the first step relative to the non-clamping surface of the carrier, and the non-clamping surface of the carrier is linear.
Further preferably, the height of the carrier is such that when the carrier is in a clamped state, the top of the carrier is higher than the top of the positioning block and the top of the locking block, so that a space is kept between the cylindrical optical element carried by the carrier and the top of the positioning block and the top of the locking block.
Further preferably, the connecting portion is located at the bottom of the base, and the fixture is fixed on an external machine tool workpiece shaft through the connecting portion.
Further preferably, through holes are respectively formed in the center positions of the base and the connecting portion, and the tool clamp is fixed on an external machine tool workpiece shaft through the through holes.
According to the tooling fixture provided by the utility model, the carrier for carrying the cylindrical optical element, the positioning block and the locking block are clamped by the wedge-shaped surfaces, and the cylindrical optical element is prevented from moving in the edging process by the second positioning mechanism, so that the centering precision of the cylindrical optical element in the edging process is greatly improved.
Drawings
FIG. 1 is a schematic structural view of a tooling fixture;
FIG. 2 is a schematic diagram of a positioning block;
FIG. 3 is a schematic diagram of a locking block structure;
FIG. 4 is a schematic diagram of a carrier structure;
FIG. 5 is a schematic diagram of cylindrical optical element decentration (Offset);
FIG. 6 is a schematic view of cylindrical optical element tilting (Twist angle);
FIG. 7 is a three-dimensional schematic of a cylindrical optical element to be edged;
fig. 8 is a schematic view of the edging device for measuring the eccentric angle.
Detailed Description
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
The application provides a fixture suitable for centering and edging cylindrical optical elements, the structure diagram of which is shown in fig. 1, comprising a base 100, a first positioning mechanism 200, a carrier 300 and a locking mechanism 400; the first positioning mechanism 200 and the locking mechanism 400 are matched and arranged on the base 100, and the carrier 300 is fixedly clamped on the base 100 by the matching; the carrier 300 is used to carry cylindrical optical elements.
Specifically, the first positioning mechanism 200 includes a positioning block 201, the locking mechanism 400 includes a locking block 401, the positioning block 201 and the locking block 401 are oppositely disposed on the base 100, and the carrier 300 is clamped between the positioning block 201 and the locking block 401.
In order to improve the clamped strength of the carrier 300, the positioning block 201, the locking block 401 and the carrier 300 are specially designed, and the special design is specifically as follows: the clamping surfaces of the positioning block 201 and the carrier 300 directly clamping each other are wedge-shaped surfaces, respectively, and the clamping surfaces of the locking block 401 and the carrier directly clamping each other are wedge-shaped surfaces, respectively.
As shown in fig. 2, the surface of the positioning block 201 contacting the truncated body 300 is a wedge surface having an included angle of 80 ° with respect to the horizontal.
As shown in fig. 3, the locking block 401 is provided with a first bending portion 4011, a second bending portion 4012, and a vertical portion 4013 located between the first bending portion 4011 and the second bending portion 4012, wherein a surface of the first bending portion 4011, which contacts the carrier 300, is a wedge surface having an angle of 80 ° with a horizontal angle.
As shown in fig. 4, one side of the carrier 300 contacting the positioning block 201 and one side of the carrier 300 contacting the locking block 401 are wedge surfaces having an included angle of 80 ° with respect to the horizontal.
The base 100 sequentially comprises a first ladder 101 and a second ladder 102 from top to bottom, wherein the ladder surface of the second ladder 102 protrudes from the first ladder 101, a locking block 401 is arranged on the side surface of the first ladder 101 through the ladder surface of the second ladder 102, a positioning block 201 is arranged on the ladder surface of the first ladder 101 opposite to the locking block 401, and a carrier 300 is clamped on the ladder surface of the first ladder 101 by the positioning block 201 and the locking block 401; that is, the mounting for the lock block 401 is specifically: the first bending portion 4011 abuts against the carrier 300, the second bending portion 4012 abuts against the step surface of the second step 102, and the vertical portion 4013 is fixedly disposed on the side surface of the first step 101.
In practical applications, the mounting manner of the positioning block 201 and the base 100 may be designed according to specific applications, for example, the positioning block 201 may be integrally formed on the first step 101, that is, the positioning block 201 and the base 100 are integrally formed; in other embodiments, the positioning block 201 is designed to be separated from the base 100, and the positioning block 201 and the first step 101 are respectively provided with an adaptive threaded hole, and the positioning block 201 is fixed on the first step 101 by a screw.
The positioning block 201 and the locking block 401 with the above structures can fixedly clamp the carrier 300 on the base 100, in order to facilitate edging of cylindrical optical elements carried by the carrier 300, the height of the carrier 300 is defined, specifically, when the carrier 300 is in a clamped state by the height of the carrier 300, the top of the carrier 300 is higher than the top of the positioning block 201 and the top of the locking block 401, so that a space is kept between the cylindrical optical elements carried by the carrier 300 and the top of the positioning block 201 and the top of the locking block 401, and edging of cylindrical optical elements carried by the carrier 300 is facilitated by the space.
Because carry out edging to the cylindrical optical element who bears on the carrier 300, the gravitation that the edging produced can make the carrier 300 take place to remove, and further, in order to prevent that carrier 300 from removing at the edging in-process, frock clamp of this application still includes second positioning mechanism 500, and second positioning mechanism 500 sets up on the step face of first ladder 4011 relative to the non-clamping face of carrier 300, and the non-clamping face of carrier 300 is the linear type.
The second positioning mechanism 500 of the present application may specifically be a positioning pin, where the first step 4011 is provided with an M4 threaded hole, and the positioning pin penetrates through the M4 threaded hole through threads to be fixed on the first step 4011.
Further, for realizing processing in the axle, frock clamp of this application still includes connecting portion 600, and this connecting portion 600 is located base 100 bottom, is fixed in external machine tool work piece epaxially with frock clamp through connecting portion 600, that is, the frock clamp of this application can directly be applied to external machine tool, realizes cylindrical optical element's processing in the axle.
Further, in order to prevent the tool fixture from moving radially during the shaft machining, through holes are provided at the center positions of the base 100 and the connection part 600, respectively, so that the tool fixture is fixed to the outer machine tool workpiece shaft through the through holes, that is, the outer machine tool workpiece shaft can be directly inserted into the through holes, so that the tool fixture is prevented from moving radially during the shaft machining.
The specific application process of the tool clamp in the centering edging of the cylindrical optical element is as follows:
(1) Measurement of cylindrical optical element the eccentricity of the generatrix of the cylindrical optical element is measured using an optical workstation, which according to the definition of the cylindrical optical element by the optical workstation, as shown in fig. 5, 6, comprises two parameters: cylinder optical element decentration (Offset) which refers to the distance between the mechanical axis of the cylinder optical element and the vertex line, and cylinder optical element tilt (Twist angle) which refers to the angle between the mechanical axis of the cylinder optical element and the vertex line;
(2) As shown in fig. 7, the cylindrical optical element to be edged consists of a flat bottom surface and a cylindrical surface, the bottom surface of the cylindrical optical element is adhered to the carrier 300 yellow wax, the wedge surface of the carrier 300 is adhered to the positioning block 201, the straight surface is fixed with the positioning pin, the locking block 401 is adhered to the side surface of the first step 101 of the base 100, the locking block 401 is fixed on the base 100 through a threaded positioning hole, and the connecting part 600 is fixed on the bottom platform of the base 100 through threaded connection and is fixed with the workpiece shaft of the machine tool;
(3) Setting an edging reference, and measuring the eccentric angle of the reference surface of the cylindrical optical element by using a 'Measure: workpiece rotation angle' program of an edging device, wherein as shown in fig. 8, a measuring probe equipped with the edging device lightly touches two points P1 and P2 of the edging surface a of the cylindrical optical element, and the distances between the two points P1 and P2 and the central line of the cylindrical optical element are respectively L1 and L2. The measuring probes record the degrees at the positions P1 and P2 respectively, the edging device calculates the angle deviation of the cylindrical optical element relative to the workpiece shaft of the machine tool according to the probe data at the positions P1 and P2, and the edging device rotates the workpiece shaft according to the value of the angle deviation to correct the position of the cylindrical optical element;
(4) Correcting the inclination of the cylindrical optical element (Twist angle), according to the measured value of the optical work station, using the ' measurement: workpiece rotation angle ' program of the edging device to enable the workpiece shaft to rotate by a corresponding angle for edging, measuring the inclination of the reference A plane of the cylindrical optical element by the optical work station after edging, and performing edging again according to the fed-back data until the inclination of the cylindrical optical element is smaller than 1.2', and finishing the inclination correction of the cylindrical optical element;
(5) Correcting cylinder optic eccentricity (Offset), substituting the cylinder optic tilt (Twist angle) value measured above into the following formula:
where L is the length of the side of the modified cylindrical optical element.
And judging whether the eccentricity (Offset) value of the cylindrical optical element measured by the surface A of the reference surface meets a formula, and if not, edging by taking the surface A as the reference surface until the eccentricity (Offset) value of the cylindrical optical element is substituted into the formula.
The utility model provides a frock clamp can realize cylindrical optical element's at axle edging processing, and in edging processing process, through the wedge face centre gripping each other between carrier and locating piece and the latch segment, and prevent through second positioning mechanism that cylindrical optical element from taking place to remove in the edging process, greatly improved the centering precision of cylindrical optical element edging in-process.
The foregoing description of the utility model has been presented for purposes of illustration and description, and is not intended to be limiting. Several simple deductions, modifications or substitutions may also be made by a person skilled in the art to which the utility model pertains, based on the idea of the utility model.
Claims (9)
1. Frock clamp suitable for cylindrical optical element centering edging, its characterized in that includes: the device comprises a base, a first positioning mechanism, a carrier and a locking mechanism;
the first positioning mechanism and the locking mechanism are matched and arranged on the base, and the carrier is fixedly clamped on the base by matching;
the carrier is for carrying the cylindrical optical element.
2. The tool clamp of claim 1, wherein the first positioning mechanism comprises a positioning block, the locking mechanism comprises a locking block, the positioning block and the locking block are oppositely arranged on the base, and the carrier is clamped between the positioning block and the locking block.
3. The tool clamp according to claim 2, wherein the clamping surfaces of the positioning block and the carrier which are directly clamped with each other are wedge-shaped surfaces, respectively, and the clamping surfaces of the locking block and the carrier which are directly clamped with each other are wedge-shaped surfaces, respectively.
4. The tool clamp according to claim 3, wherein the base comprises a first step and a second step from top to bottom in sequence, the step surface of the second step is convex to the first step, the locking block is arranged on the side surface of the first step through the step surface of the second step, the positioning block is arranged on the step surface of the first step opposite to the locking block, and the carrier is clamped on the step surface of the first step by the positioning block and the locking block.
5. The tool clamp according to claim 4, wherein the locking block is provided with a first bending portion, a second bending portion, and a vertical portion located between the first bending portion and the second bending portion, the first bending portion abuts against the carrier, the second bending portion abuts against a step surface of the second step, and the vertical portion is fixedly disposed on a side surface of the first step.
6. The tool clamp of claim 4, further comprising a second positioning mechanism disposed on the step surface of the first step opposite the non-clamping surface of the carrier, and the non-clamping surface of the carrier is linear.
7. The tool clamp of claim 2, wherein the carrier has a height such that when the carrier is in a clamped state, the top of the carrier is higher than the top of the positioning block and the top of the locking block, so that a space is maintained between the cylindrical optical element carried by the carrier and the top of the positioning block and the top of the locking block.
8. The tool clamp of claim 1, further comprising a connecting portion located at the bottom of the base, the connecting portion being used to secure the tool clamp to an external machine tool workpiece spindle.
9. The tool clamp according to claim 8, wherein through holes are respectively formed in the center positions of the base and the connecting portion, and the tool clamp is fixed to a workpiece shaft of an external machine tool through the through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321914580.6U CN220241132U (en) | 2023-07-20 | 2023-07-20 | Frock clamp suitable for cylindrical optical element centering edging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321914580.6U CN220241132U (en) | 2023-07-20 | 2023-07-20 | Frock clamp suitable for cylindrical optical element centering edging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220241132U true CN220241132U (en) | 2023-12-26 |
Family
ID=89226901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321914580.6U Active CN220241132U (en) | 2023-07-20 | 2023-07-20 | Frock clamp suitable for cylindrical optical element centering edging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220241132U (en) |
-
2023
- 2023-07-20 CN CN202321914580.6U patent/CN220241132U/en active Active
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