CN215511752U - Elastic tool clamp suitable for single-point diamond lathe machining - Google Patents
Elastic tool clamp suitable for single-point diamond lathe machining Download PDFInfo
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- CN215511752U CN215511752U CN202121793268.7U CN202121793268U CN215511752U CN 215511752 U CN215511752 U CN 215511752U CN 202121793268 U CN202121793268 U CN 202121793268U CN 215511752 U CN215511752 U CN 215511752U
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Abstract
The utility model belongs to the technical field of precision diamond cutting machining, and particularly relates to an elastic tool clamp suitable for single-point diamond lathe machining. This elasticity frock clamp suitable for single-point diamond lathe processing compares absorption formula clamping, this elasticity frock clamp makes lens and anchor clamps coaxial through the clamping edge, the axiality of need adjusting when having avoided changing the lens, this elasticity anchor clamps convenient operation, easily replace the frock fast when facing different diameter lenses, improve production efficiency effectively, and centering precision improves greatly, commonality interchangeability is fine, be suitable for various occasions, the precision is high, compact structure, the installation is dismantled conveniently, the chamfer of pressing from both sides core opening part platform makes the original line contact mode of platform and work piece change into face contact, avoid stress concentration to cause and take the place of the machined surface deformation, edge damage or fish tail.
Description
Technical Field
The utility model relates to the technical field of precision diamond cutting machining, in particular to an elastic tool clamp suitable for single-point diamond lathe machining.
Background
In the past, the optical parts are generally processed by adopting grinding materials, but the method has low production efficiency, and if ultra-precise turning is adopted, not only can the production efficiency be improved, but also the shape precision can be improved. The diamond ultra-precision cutting technology is characterized in that a natural single-crystal diamond cutter with nanoscale sharpness is adopted on an ultra-precision numerical control lathe, and an optical part meeting the optical quality requirement is directly machined by using the diamond cutter through single-point cutting under the condition of accurately controlling the lathe and the machining environment. The diamond cutter has high wear resistance and shape reproducibility, and the cutting depth of diamond ultra-precision machining is generally in micron level, so that a precision workpiece with micron and submicron level shape precision and nano level surface roughness can be machined. The technology is mainly used for processing medium and small-sized and medium-sized metal materials and infrared crystal optical parts, and is characterized by high production efficiency, high processing precision, good repeatability, suitability for batch production and obviously lower processing cost compared with the traditional processing technology. Under the machining precision, the design of a reasonable clamp is an important condition for ensuring the high-efficiency production of the whole manufacturing process and keeping the high qualification rate of products. The single-point diamond lathe spindle is connected with a workpiece by vacuum adsorption, for example, a plane vacuum sucker is connected on a spindle of a Nanoform X device, and if a part to be processed is fixed at the center of the processing spindle in a stress-free deformation mode, namely, stress is not generated during clamping, or the clamping stress of the part is as small and uniform as possible, a tool clamp completely matched with the part is needed.
The clamping mode of the existing single-point diamond lathe for processing optical aspheric parts mainly comprises three clamping modes: vacuum adsorption, adhesion and mechanical clamping. The vacuum adsorption type is that a machined part is directly vacuum adsorbed at the center of a main shaft and is adjusted and positioned by the excircle of the part, and the part with thin thickness and high surface shape precision requirement cannot be met when the suction force with larger diameter-thickness ratio is machined; the bonding mode is that a processed part is fixed on a tool clamp by using a bonding agent, then the tool clamp is adsorbed at the center of a main shaft and is positioned by bonding and the excircle of the clamp, and the operation is complicated when the part is clamped; the common mechanical clamping can not meet the requirement of eccentric center of parts, when facing optical parts with different diameters, the clamp needs to be disassembled from the main shaft, the clamp is replaced by a whole piece, and the dynamic balance and the coaxiality are readjusted to influence the processing efficiency. When the lens is installed, the workpiece is completely locked by pressing the port through the threads, the surface to be machined of the workpiece is deformed due to the fact that the force is too hard, and therefore the shape of the machined surface is unqualified.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the existing defects and provide an elastic processing clamp which is suitable for single-point diamond lathe processing and can quickly replace lenses with different diameters, so that stress generated on processing parts is small and uniform, the requirement of center deviation of the processing parts can be met, and the deformation of the lenses caused by manual locking can be avoided.
In order to achieve the purpose, the utility model provides the following technical scheme: the elastic tool clamp suitable for single-point diamond lathe machining comprises a sandwich core, a clamping cover and a base, wherein the clamping cover is arranged on the outer surface of the sandwich core, and the base is fixedly installed at the bottom of the sandwich core.
The sandwich core comprises a gap and a counter bore, the gap is arranged on the inner wall of the sandwich core, and the counter bore is arranged at the bottom of the sandwich core.
Preferably, the bottom surface of the sandwich core is a horizontal plane, five phi 1 vent holes are uniformly distributed in a field shape, the side surface of the bottom of the sandwich core is a conical surface, and the profile degree of the outer conical surface of the side surface of the bottom of the sandwich core is less than 0.01 mm.
Preferably, the middle of the bottom surface of the sandwich core is provided with a through groove, twelve gaps are distributed at equal intervals, and three counter bores are arranged.
Preferably, the base includes screw hole, recess and through-hole, the screw hole is seted up in the side of base, the inner wall of base is seted up to the recess, the through-hole is seted up in the inside center of base.
Preferably, the number of the threaded holes is twelve, twelve threaded holes are distributed at equal intervals, and the grooves are conical grooves.
Preferably, the clamp cover comprises internal threads, and the internal threads are in threaded connection with the inner wall of the sandwich core.
Preferably, the inner wall of the clamp cover and the inner wall of the sandwich form an included angle of 15 degrees.
Compared with the prior art, the utility model has the beneficial effects that:
1. this elasticity frock clamp suitable for single-point diamond lathe processing compares absorption formula clamping, and this elasticity frock clamp makes lens and anchor clamps coaxial through the clamping edge, need adjust the axiality when having avoided changing the lens, and this elasticity anchor clamps convenient operation easily replaces the frock fast when facing different diameter lenses, improves production efficiency effectively.
2. The elastic tool clamp suitable for single-point diamond lathe machining is greatly improved in centering precision, good in universality interchangeability, suitable for various occasions, high in precision, compact in structure and convenient to install and detach, the original line contact mode of the platform and a workpiece is changed into surface contact by the aid of the chamfer of the platform at the position of the sandwich opening, and deformation of a machining surface, edge damage or scratch caused by stress concentration are avoided.
Drawings
FIG. 1 is an isometric view of an elastic clamp of the present invention;
FIG. 2 is a front view of the resilient clip of the present invention;
FIG. 3 is a top view of the sandwich of the present invention;
FIG. 4 is an isometric view of a base of the present invention;
fig. 5 is a view showing the structure of the clip cover of the present invention.
In the figure: 1 sandwich core, 101 gaps, 102 counter bores, 2 bases, 201 threaded holes, 202 grooves, 203 through holes, 3 clamping covers and 301 internal threads.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides an elasticity frock clamp suitable for single-point diamond lathe processing, including pressing from both sides core 1, clamp cover 3 and base 2, clamp cover 3 sets up in pressing from both sides core 1's surface, base 2 fixed mounting is in pressing from both sides core 1's bottom, it has the chamfer to press from both sides core 1 opening part platform, the chamfer is alpha with the inner wall contained angle that presss from both sides core 1, alpha ═ arcsin (90-omega/R), the chamfer makes the original line contact mode of platform and work piece change into face contact, avoid stress concentration to cause and take the place of the face deformation of processing, edge damage or fish tail, it has the high elasticity to press from both sides core 1, compare the absorption formula clamping, this elasticity frock clamp makes lens and anchor clamps coaxial through the clamping edge, need adjust the axiality when having avoided changing the lens, this elasticity clamp convenient operation, easily replace the frock fast when facing different diameter lenses, improve production efficiency effectively.
The sandwich core 1 comprises gaps 101 and countersunk holes 102, the gaps 101 are formed in the inner wall of the sandwich core 1, the countersunk holes 102 are formed in the bottom of the sandwich core 1, the bottom surface of the sandwich core 1 is a horizontal plane and is uniformly provided with five phi 1 vent holes in a shape like a Chinese character tian, the side surface of the bottom of the sandwich core 1 is a conical surface, the profile degree of the outer conical surface of the side surface of the bottom of the sandwich core 1 is less than 0.01mm, a through groove is formed in the middle of the bottom surface of the sandwich core 1 to ensure that the flatness of the bottom surface is less than 0.01mm, the processing is convenient, the number of the gaps 101 is twelve, the twelve gaps 101 are distributed at equal intervals, and the number of the countersunk holes 102 is three.
The base 2 comprises a threaded hole 201, a groove 202 and a through hole 203, the threaded hole 201 is arranged on the side face of the base 2, the groove 202 is arranged on the inner wall of the base 2, the through hole 203 is arranged in the center of the inner portion of the base 2, the threaded holes 201 are twelve in number, the twelve threaded holes 201 are distributed at equal intervals and used for adjusting dynamic balance, and the groove 202 is a conical groove.
The clamping cover 3 comprises an internal thread 301, the internal thread 301 is in threaded connection with the inner wall of the sandwich core 1, and the inner wall of the clamping cover 3 and the inner wall of the sandwich core 1 form an included angle of 15 degrees.
When the clamp is used, twelve gaps 101 at the edge of the sandwich core are contracted to enable a workpiece to be coaxial with a main shaft, the platform limits the displacement of the workpiece in the X-axis direction, the workpiece is fixed on the clamp by using a vacuum adsorption acting force, the high-elasticity sandwich core 1 enables the processed part to be stressed uniformly when being clamped, the stress deformation is reduced, lenses with different diameters are changed through the sandwich core 1, the time for adjusting the dynamic balance and the coaxiality after being reassembled is greatly saved, and meanwhile, the surface quality and the center precision of the part during processing are ensured due to the good guidance of the conical surface.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an elasticity frock clamp suitable for single-point diamond lathe processing, includes core (1), clamp cover (3) and base (2), its characterized in that: the clamping cover (3) is arranged on the outer surface of the sandwich core (1), and the base (2) is fixedly arranged at the bottom of the sandwich core (1);
the sandwich core (1) comprises a gap (101) and a counter bore (102), the gap (101) is arranged on the inner wall of the sandwich core (1), and the counter bore (102) is arranged at the bottom of the sandwich core (1).
2. The elastic tool clamp suitable for single-point diamond turning according to claim 1, wherein: the bottom surface of the sandwich core (1) is a horizontal plane, five phi 1 vent holes are uniformly distributed in a field shape, the side surface of the bottom of the sandwich core (1) is a conical surface, and the profile degree of the outer conical surface of the side surface of the bottom of the sandwich core (1) is less than 0.01 mm.
3. The elastic tool clamp suitable for single-point diamond turning according to claim 1, wherein: the sandwich core is characterized in that a through groove is formed in the middle of the bottom surface of the sandwich core (1), twelve gaps (101) are formed, the twelve gaps (101) are distributed at equal intervals, and three counter bores (102) are formed.
4. The elastic tool clamp suitable for single-point diamond turning according to claim 1, wherein: the base (2) comprises a threaded hole (201), a groove (202) and a through hole (203), the threaded hole (201) is formed in the side face of the base (2), the groove (202) is formed in the inner wall of the base (2), and the through hole (203) is formed in the inner center of the base (2).
5. The elastic tool clamp suitable for single-point diamond turning according to claim 4, wherein: the number of the threaded holes (201) is twelve, the twelve threaded holes (201) are distributed at equal intervals, and the grooves (202) are conical surface grooves.
6. The elastic tool clamp suitable for single-point diamond turning according to claim 1, wherein: the clamp cover (3) comprises internal threads (301), and the internal threads (301) are in threaded connection with the inner wall of the sandwich core (1).
7. The elastic tool clamp suitable for single-point diamond turning according to claim 1, wherein: the inner wall of the clamping cover (3) and the inner wall of the sandwich core (1) form an included angle of 15 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121793268.7U CN215511752U (en) | 2021-08-03 | 2021-08-03 | Elastic tool clamp suitable for single-point diamond lathe machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121793268.7U CN215511752U (en) | 2021-08-03 | 2021-08-03 | Elastic tool clamp suitable for single-point diamond lathe machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215511752U true CN215511752U (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121793268.7U Active CN215511752U (en) | 2021-08-03 | 2021-08-03 | Elastic tool clamp suitable for single-point diamond lathe machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215511752U (en) |
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2021
- 2021-08-03 CN CN202121793268.7U patent/CN215511752U/en active Active
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