CN110936288B - Electroplating polishing grinding head with flexible layer - Google Patents
Electroplating polishing grinding head with flexible layer Download PDFInfo
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- CN110936288B CN110936288B CN201911047623.3A CN201911047623A CN110936288B CN 110936288 B CN110936288 B CN 110936288B CN 201911047623 A CN201911047623 A CN 201911047623A CN 110936288 B CN110936288 B CN 110936288B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/002—Grinding heads
Abstract
The invention discloses an electroplating polishing grinding head with a flexible layer, which comprises a hemispherical shell metal outer layer, a hemispherical shell flexible inner layer, a connecting seat sleeve, a locking sleeve and a rigid supporting seat; the outer surface of the metal outer layer of the hemispherical shell is electroplated with a polishing layer; the flexible inner layer of the hemispherical shell is attached to the inner part of the metal outer layer of the hemispherical shell; a cylinder of the metal outer layer of the hemispherical shell is arranged in an opening at the lower end of the connecting seat sleeve; the rigid supporting seat comprises a connecting part, an embedding part and a metal handle; the connecting part is inserted into the locking sleeve and tightly presses the connecting seat sleeve; the lower end of the metal handle is connected to the center of the upper end face of the connecting part; the upper end of the embedding part is connected to the center of the lower end surface of the connecting part; the embedding part is inserted into the connecting seat sleeve, and the hemispherical part at the lower end of the embedding part is inserted into the hemispherical shell flexible inner layer to tightly press the hemispherical shell flexible inner layer; the invention has small deformation at the contact part with the workpiece, realizes local surface contact without considering dressing and abrasion compensation, thereby having good positioning precision, processing precision and processing efficiency.
Description
Technical Field
The invention belongs to the technical field of surface processing, and particularly relates to an electroplating polishing grinding head with a flexible layer.
Background
The electroplating grinding wheel/grinding head (cubic boron nitride (CBN) or diamond grinding material) is particularly suitable for forming and high-speed grinding due to good grinding performance, does not have the conditions that a common grinding wheel is easy to wear and is fragile, does not need to be dressed, and has constant linear velocity and consistent surface quality. The electroplating grinding wheel adopts a layer of high-performance superhard single-layer grinding material, has good shape retention capacity, and can not consider error compensation caused by grinding tool abrasion in numerical control processing.
For the polishing of a complex curved surface, the common grinding wheel is easy to crush due to large and irregular curvature change of all parts of the surface and uneven allowance after milling, and the electroplating grinding wheel cannot crush but is hard to hard in polishing, so that the vibration and the noise are large and grinding burn is easy to generate; in addition, a proper rigid conjugate profile grinding tool cannot be found, the high-efficiency processing of line or surface contact can be carried out on a complex curved surface, and the high-efficiency processing of surface contact only needs to adopt a flexible grinding head, but the abrasive consolidation strength of a common flexible grinding head (such as an air bag polishing and a rubber grinding tool) is not high, the abrasion is fast during processing, transverse bending deformation can be generated during pressing, high-speed polishing and thermal deformation can be generated during heating, the condition is more serious particularly for difficult-to-process materials with high strength and hardness, the positioning error is large during processing, and the consistency of the processing efficiency, the processing precision and the surface quality is influenced, referring to fig. 6 and fig. 7.
In the conventional electroplated grinding wheel, acid treatment is carried out before the used electroplated grinding wheel is electroplated with grinding materials again, and the subsequent treatment is complicated. In addition, because abrasive wear is difficult to predict, electroplating matrix metal wear may occur during grinding, so that the electroplating matrix appearance is changed and cannot be directly reused by electroplating (a correct shape needs to be machined secondarily) or scrapped, thereby causing extra cost and high use cost.
There is a need in the art for a flexible polishing head that overcomes the above-mentioned problems.
Disclosure of Invention
The technical scheme adopted for achieving the purpose of the invention is that the electroplating polishing grinding head with the flexible layer comprises a hemispherical shell metal outer layer, a hemispherical shell flexible inner layer, a connecting seat sleeve, a locking sleeve and a rigid supporting seat.
The outer surface of the hemispherical shell metal outer layer is electroplated with a polishing layer. The end surface of the metal outer layer of the hemispherical shell is provided with a connecting part I in an extending way.
The flexible inner layer of the hemispherical shell is attached to the inner part of the metal outer layer of the hemispherical shell. The structural rigidity of the flexible inner layer of the hemispherical shell is greater than that of the metal outer layer of the hemispherical shell. The size deformation elasticity of the flexible inner layer of the hemispherical shell is smaller than that of the metal outer layer of the hemispherical shell.
The connecting seat sleeve is a hollow cylinder, and an annular flange I is arranged on the outer wall of the upper end of the connecting seat sleeve.
And the connecting part I of the metal outer layer of the hemispherical shell is arranged in an opening at the lower end of the connecting seat sleeve.
The locking sleeve is internally provided with a circular through hole, and a circular flange II is arranged on the wall of the circular through hole in an extending mode. The lower end of the connecting seat sleeve penetrates out of the circular flange II of the locking sleeve, and the circular flange I at the upper end of the connecting seat sleeve is clamped on the circular flange II of the locking sleeve.
The rigid support seat comprises a connecting part II, an embedding part and a metal handle.
The connecting part II is disc-shaped. The connecting part II is inserted into the locking sleeve and tightly presses the connecting seat sleeve.
The lower end of the metal handle is connected to the center of the upper end face of the connecting part II.
The embedding part is cylindrical, and the lower end of the embedding part is provided with a hemispherical part which is matched with the interior of the flexible inner layer of the hemispherical shell. The upper end of the embedding part is connected to the center of the lower end face of the connecting part II. The embedding part is inserted into the connecting seat sleeve, and the hemispherical part at the lower end of the embedding part is inserted into the hemispherical shell flexible inner layer to compress the hemispherical shell flexible inner layer.
The structural rigidity of the rigid supporting seat is far greater than that of the flexible inner layer of the hemispherical shell.
Furthermore, a pre-tightening rubber gasket is arranged between the circular flange I and the circular flange II.
Further, the connecting part I is a cylinder. Two positioning holes are formed in the cylinder.
The connecting seat sleeve is divided into two symmetrical parts, the outer wall of the lower end of each part is provided with a screw hole corresponding to the positioning hole, and the screw hole shafts on the outer walls of the two parts are collinear and are along the radial direction of the connecting seat sleeve. The connecting seat sleeve is connected with the connecting part I through a screw.
Furthermore, the inner wall of the locking sleeve is provided with internal threads.
The outer wall of the connecting part II is provided with an external thread. The connecting part is connected in the locking sleeve through threads.
Furthermore, the metal handle is cylindric, the equipartition has 2 ~ 4 openings on the metal handle outer wall. The diameter of the metal shank is denoted d. The length of the gap is 10mm, and the depth is 1/5 d-1/10 d of the diameter of the metal handle.
Furthermore, the structural rigidity of the flexible inner layer of the hemispherical shell is 2 times of that of the metal outer layer of the hemispherical shell.
Further, the polishing layer material is CBN or diamond. The average grain diameter of the abrasive of the polishing layer is 5-10 um.
Furthermore, the outer wall of the locking sleeve is provided with 2-4 uniformly distributed planes.
Further, the rigid supporting seat and the connecting seat sleeve are made of structural steel.
The outer metal layer of the hemispherical shell is a hemispherical spring steel sheet or a soft steel sheet.
The flexible inner layer of the hemispherical shell is a hemispherical rubber shell.
Furthermore, the thickness of the connecting seat cover is 1.5-3 mm.
The thickness of the flexible inner layer of the hemispherical shell is 1-3 mm.
The thickness of the metal outer layer of the hemispherical shell is 0.2-0.3 mm.
When the electroplating polishing grinding head works, the electroplating polishing grinding head is in contact with a workpiece, the contact part of the metal outer layer of the hemispherical shell and the workpiece generates micro deformation, the flexible inner layer of the hemispherical shell generates elastic deformation, the deformation elastic force of the flexible inner layer of the hemispherical shell acts on the metal outer layer of the hemispherical shell, and the metal outer layer of the hemispherical shell is restored under the deformation elastic force of the flexible inner layer of the hemispherical shell to keep the shape of the grinding head.
The electroplating polishing grinding head with the flexible layer has the advantages that the contact part of the electroplating polishing grinding head with the flexible layer and a workpiece is slightly elastically deformed, local surface contact is realized, the transverse bending deformation or thermal deformation of the grinding head is small during high-speed polishing, and trimming and abrasion compensation are not required to be considered, so that the electroplating polishing grinding head with the flexible layer has good positioning precision, machining precision and machining efficiency; meanwhile, the abraded metal outer layer of the hemispherical shell is easy to replace, and only the metal outer layer of the hemispherical shell is simply replaced to obtain a new working surface, so that the use cost is reduced.
Drawings
FIG. 1 is a schematic perspective cross-sectional structural view of an embodiment of the present invention;
FIG. 2 is a schematic connection diagram of the connection sleeve, the flexible inner layer of the hemispherical shell and the metal outer layer of the hemispherical shell;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic view of the coupling seat cover assembly;
FIG. 5 is a schematic view of the combination of the flexible inner layer and the metal outer layer of the hemispherical shell;
fig. 6 is a schematic view of the transverse bending deformation of the flexible grinding head under pressure;
fig. 7 is a diagram showing a case of wear deformation of the finger-shaped flexible grinding head after polishing.
In the figure: the semi-spherical shell comprises a semi-spherical shell metal outer layer 1, a connecting part I11, a positioning hole 111, a semi-spherical shell flexible inner layer 2, a connecting seat sleeve 3, a circular flange I31, a screw hole 32, a locking sleeve 4, a circular flange II41, a plane 42, a rigid supporting seat 5, a connecting part II51, an embedded part 52, a metal handle 53, a notch 531, a rubber gasket 6 and a screw 7.
Detailed Description
The present invention is further illustrated by the following examples, but it should not be construed that the scope of the above-described subject matter is limited to the following examples. Various substitutions and alterations can be made without departing from the technical idea of the invention and the scope of the invention is covered by the present invention according to the common technical knowledge and the conventional means in the field.
Example 1:
the embodiment discloses an electroplating polishing grinding head with a flexible layer, which comprises a hemispherical shell metal outer layer 1, a hemispherical shell flexible inner layer 2, a connecting seat sleeve 3, a locking sleeve 4 and a rigid supporting seat 5, and is shown in fig. 1 to 5.
The semi-spherical shell metal outer layer 1 is a semi-spherical spring steel sheet or a soft steel sheet. The hemispherical shell metal outer layer 1 is formed by hot stamping. In this embodiment, the thickness of the hemispherical shell metal outer layer 1 is 0.3 mm. The outer surface of the hemispherical shell metal outer layer 1 is electroplated with a polishing layer. The end surface of the hemispherical shell metal outer layer 1 is provided with a connecting part I11 in a branching manner. In this embodiment, the connecting portion I11 is a cylinder, the height of the cylinder is 8mm, two positioning holes 111 with a diameter of 1.1mm are uniformly distributed on the cylinder, and the two positioning holes 111 are distributed along the radial direction of the cylinder.
The hemispherical shell flexible inner layer 2 is a hemispherical rubber shell. In this embodiment, the thickness of the flexible inner layer 2 of the hemispherical shell is 3 mm. The hemispherical shell flexible inner layer 2 is attached to the inner part of the hemispherical shell metal outer layer 1. The structural rigidity of the flexible inner layer 2 of the hemispherical shell is 2 times of that of the metal outer layer 1 of the hemispherical shell. The flexible inner layer 2 of the hemispherical shell is formed by hot injection molding, can resist high temperature and has a large elastic modulus, and the size deformation elasticity of the flexible inner layer 2 of the hemispherical shell is smaller than that of the metal outer layer 1 of the hemispherical shell.
The connecting seat sleeve 3 is a hollow cylinder, the sleeve thickness of the connecting seat sleeve 3 is 3mm, and the outer wall of the upper end of the connecting seat sleeve is provided with an annular flange I31.
The connecting seat sleeve 3 is divided into two symmetrical parts, 1 screw hole 32 corresponding to the positioning hole 111 is formed in the outer wall of the lower end of each part, the screw holes 32 are countersunk, the diameter of each screw hole 32 is 1mm, and the two screw holes 32 are distributed along the radial direction of the connecting seat sleeve 3. The connecting part I11 of the hemispherical shell metal outer layer 1 is inserted into an opening at the lower end of the connecting seat sleeve 3 and is connected through a screw 7, the screw 7 is screwed into the screw hole 32, the front part slightly penetrates through the positioning hole 111, and the screw 7 is an M1 multiplied by 4 countersunk head screw.
The locking sleeve 4 is cylindrical, a circular through hole is formed in the locking sleeve, and a circular flange II41 is arranged on the lower end of the locking sleeve 4 in a branching mode. The inner wall of the locking sleeve 4 is provided with internal threads. The lower end of the connecting sleeve 3 penetrates out of the circular flange II41 of the locking sleeve 4, and the circular flange I31 at the upper end of the connecting sleeve 3 is clamped on the circular flange II41 of the locking sleeve 4. A preloaded rubber gasket 6 is arranged between the circular ring flange I31 and the circular ring flange II 41. The outer wall of the locking sleeve 4 is provided with 2 uniformly distributed planes 42 for facilitating the assembly and disassembly of the grinding head by a disassembling tool.
The rigid support seat 5 comprises a connecting part II51, an embedded part 52 and a metal handle 53.
The connecting part II51 is disk-shaped. The outer wall of the connecting part II51 is provided with an external thread. The connecting part II51 is connected in the locking sleeve 4 through threads and compresses the connecting sleeve 3.
The metal handle 53 is cylindrical, and 2 gaps 531 are uniformly distributed on the outer wall of the metal handle 53. The diameter of the metal shank 53 is denoted as d. The length of the notch 531 is 10mm, the depth of the notch 531 is 1/10d of the diameter of the metal handle 53, and the notch 531 is used for facilitating the assembly and disassembly of the grinding head by a disassembling tool. The lower end of the metal handle 53 is connected to the center of the upper end face of the connecting part II 51. The joint between the metal handle 53 and the joint II51 is rounded with a radius 1/5d to prevent the metal handle from being easily broken due to stress concentration during processing.
The insertion portion 52 is cylindrical, and has a hemispherical portion at its lower end that fits inside the hemispherical shell flexible inner layer 2. The upper end of the embedding part 52 is connected to the center of the lower end face of the connecting part II51, and the two parts are integrally processed. The embedded part 52 is inserted into the connecting sleeve 3, and the hemispherical part at the lower end of the embedded part 52 is inserted into the hemispherical shell flexible inner layer 2 to press the hemispherical shell flexible inner layer 2.
The structural rigidity of the rigid supporting seat 5 is far greater than that of the flexible inner layer 2 of the hemispherical shell.
Further, the rigid support seat 5 and the connecting sleeve 3 are made of structural steel with high rigidity and easy processing, and in this embodiment, the rigid support seat 5 and the connecting sleeve 3 are made of 45# steel.
Further, the polishing layer material is CBN. The average grain diameter of the abrasive material of polishing layer is 5 ~ 10um, and cladding material thickness will be thin, guarantees hemisphere shell metal outer 1's structural elasticity, guarantees that hemisphere shell flexible inner layer 2's size deformation elastic force is greater than hemisphere shell metal outer 1's the required restoring force of structural deformation, can recover under hemisphere shell flexible inner layer 2 elastic action after hemisphere shell metal outer 1 takes place to warp, keeps the bistrique shape.
When the electroplating polishing grinding head works, the electroplating polishing grinding head is in contact with a workpiece, the contact part of the hemispherical shell metal outer layer 1 and the workpiece generates micro deformation, the hemispherical shell flexible inner layer 2 generates elastic deformation, the deformation elastic force of the hemispherical shell flexible inner layer 2 acts on the hemispherical shell metal outer layer 1, and the hemispherical shell metal outer layer 1 is restored under the deformation elastic force of the hemispherical shell flexible inner layer 2 to keep the shape of the grinding head. It is worth noting that the hemispherical shell metal outer layer 1 is a disposable part and is not reused, and a new working surface can be quickly replaced by only replacing the hemispherical shell metal outer layer.
The electroplating polishing grinding head with the flexible layer disclosed by the embodiment is slightly elastically deformed at the contact part with a workpiece, so that local surface contact is realized, the transverse bending deformation or the thermal deformation of the grinding head is very small during high-speed polishing, and trimming and abrasion compensation are not required to be considered, so that the electroplating polishing grinding head has good positioning precision, processing precision and processing efficiency; meanwhile, the abraded metal outer layer 1 of the hemispherical shell is easy to replace, and the use cost is reduced.
Example 2:
the embodiment discloses a basic implementation manner, and relates to an electroplating polishing grinding head with a flexible layer, which is shown in fig. 1 to 5 and comprises a hemispherical shell metal outer layer 1, a hemispherical shell flexible inner layer 2, a connecting seat sleeve 3, a locking sleeve 4 and a rigid supporting seat 5.
The outer surface of the hemispherical shell metal outer layer 1 is electroplated with a polishing layer. The end surface of the hemispherical shell metal outer layer 1 is provided with a connecting part I11 in a branching manner.
The hemispherical shell flexible inner layer 2 is attached to the inner part of the hemispherical shell metal outer layer 1. The structural rigidity of the flexible inner layer 2 of the hemispherical shell is greater than that of the metal outer layer 1 of the hemispherical shell. The size deformation elasticity of the flexible inner layer 2 of the hemispherical shell is smaller than that of the metal outer layer 1 of the hemispherical shell.
The connecting sleeve 3 is a hollow cylinder, and the outer wall of the upper end of the connecting sleeve is provided with an annular flange I31. The connecting part I11 of the hemispherical shell metal outer layer 1 is inserted into the opening at the lower end of the connecting socket sleeve 3.
The locking sleeve 4 is cylindrical, a circular through hole is formed in the locking sleeve, and a circular flange II41 is arranged on the lower end of the locking sleeve 4 in a branching mode. The lower end of the connecting sleeve 3 penetrates out of the circular flange II41 of the locking sleeve 4, and the circular flange I31 at the upper end of the connecting sleeve 3 is clamped on the circular flange II41 of the locking sleeve 4.
The rigid support seat 5 comprises a connecting part II51, an embedded part 52 and a metal handle 53.
The connecting part II51 is disk-shaped. The connecting part II51 is inserted into the locking sleeve 4 and compresses the connecting sleeve 3.
The lower end of the metal handle 53 is connected to the center of the upper end face of the connecting part II 51.
The insertion portion 52 is cylindrical, and has a hemispherical portion at its lower end that fits inside the hemispherical shell flexible inner layer 2. The upper end of the embedding part 52 is connected to the center of the lower end face of the connecting part II51, and the two parts are integrally processed. The embedded part 52 is inserted into the connecting sleeve 3, and the hemispherical part at the lower end of the embedded part 52 is inserted into the hemispherical shell flexible inner layer 2 to press the hemispherical shell flexible inner layer 2.
When the electroplating polishing grinding head works, the electroplating polishing grinding head is in contact with a workpiece, the contact part of the hemispherical shell metal outer layer 1 and the workpiece generates micro deformation, the hemispherical shell flexible inner layer 2 generates elastic deformation, the deformation elastic force of the hemispherical shell flexible inner layer 2 acts on the hemispherical shell metal outer layer 1, and the hemispherical shell metal outer layer 1 is restored under the deformation elastic force of the hemispherical shell flexible inner layer 2 to keep the shape of the grinding head. It is worth noting that the hemispherical shell metal outer layer 1 is a disposable part and is not reused, and a new working surface can be quickly replaced by only replacing the hemispherical shell metal outer layer.
The electroplating polishing grinding head with the flexible layer disclosed by the embodiment is slightly elastically deformed at the contact part with a workpiece, so that local surface contact is realized, the transverse bending deformation or the thermal deformation of the grinding head is very small during high-speed polishing, and trimming and abrasion compensation are not required to be considered, so that the electroplating polishing grinding head has good positioning precision, processing precision and processing efficiency; meanwhile, the abraded metal outer layer 1 of the hemispherical shell is easy to replace, and the use cost is reduced.
Example 3:
the main structure of this embodiment is the same as that of embodiment 2, and further, a preloaded rubber gasket 6 is interposed between the annular flange I31 and the annular flange II 41.
Example 4:
the main structure of this embodiment is the same as that of embodiment 2, and further, the connecting portion I11 is a cylinder, the height of the cylinder is 8mm, two positioning holes 111 with a diameter of 1.1mm are uniformly distributed on the cylinder, and the two positioning holes 111 are radially distributed along the cylinder.
The connecting seat sleeve 3 is divided into two symmetrical parts, 1 screw hole 32 corresponding to the positioning hole 111 is formed in the outer wall of the lower end of each part, the screw holes 32 are countersunk, the diameter of each screw hole 32 is 1mm, and the two screw holes 32 are distributed along the radial direction of the connecting seat sleeve 3. The connecting part I11 of the hemispherical shell metal outer layer 1 is inserted into an opening at the lower end of the connecting seat sleeve 3 and is connected through a screw 7, the screw 7 is screwed into the screw hole 32, the front part slightly penetrates through the positioning hole 111, and the screw 7 is an M1 multiplied by 4 countersunk head screw.
Example 5:
the main structure of this embodiment is the same as embodiment 2, and further, the inner wall of the locking sleeve 4 is provided with an internal thread.
The outer wall of the connecting part II51 is provided with an external thread. The connecting part II51 is connected in the locking sleeve 4 through threads.
Example 6:
the main structure of this embodiment is the same as embodiment 2, and further, the metal handle 53 is cylindrical, and 4 gaps 531 are uniformly distributed on the outer wall of the metal handle 53. The diameter of the metal shank 53 is denoted as d. The length of the notch 531 is 10mm, the depth of the notch 531 is 1/5d of the diameter of the metal handle 53, and the notch 531 is used for facilitating the assembly and disassembly of the grinding head by a disassembling tool. The joint between the metal handle 53 and the joint II51 is rounded with a radius 1/5d to prevent the metal handle from being easily broken due to stress concentration during processing.
Example 7:
the main structure of this embodiment is the same as embodiment 2, and further, the structural rigidity of the flexible inner layer 2 of the hemispherical shell is about 2 times of the structural rigidity of the metal outer layer 1 of the hemispherical shell.
Example 8:
the main structure of this embodiment is the same as that of embodiment 2, and further, the polishing layer material is diamond. The average grain diameter of the abrasive material of polishing layer is 5 ~ 10um, and cladding material thickness will be thin, guarantees hemisphere shell metal outer 1's structural elasticity, guarantees that hemisphere shell flexible inner layer 2's size deformation elastic force is greater than hemisphere shell metal outer 1's the required restoring force of structural deformation, can recover under hemisphere shell flexible inner layer 2 elastic action after hemisphere shell metal outer 1 takes place to warp, keeps the bistrique shape.
Example 9:
the main structure of the embodiment is the same as that of embodiment 2, and furthermore, 4 uniformly distributed planes 42 are processed on the outer wall of the locking sleeve 4 and are used for facilitating the assembly and disassembly of the grinding head by a disassembling tool.
Example 10:
the main structure of this embodiment is the same as that of embodiment 2, and further, the rigid supporting seat 5 and the connecting sleeve 3 are made of structural steel with high rigidity and easy processing, and in this embodiment, the rigid supporting seat 5 and the connecting sleeve 3 are made of 45# steel.
The semi-spherical shell metal outer layer 1 is a semi-spherical spring steel sheet or a soft steel sheet. The hemispherical shell metal outer layer 1 is formed by hot stamping.
The hemispherical shell flexible inner layer 2 is a hemispherical rubber shell. The flexible inner layer 2 of the hemispherical shell is formed by hot injection molding, can resist high temperature and has a large elastic modulus, and the size deformation elasticity of the flexible inner layer 2 of the hemispherical shell is smaller than the structure deformation elasticity of the metal outer layer 1 of the hemispherical shell. In this example.
Example 11:
the main structure of this embodiment is the same as that of embodiment 2, and further, the thickness of the connecting sleeve 3 is 1.5 mm.
The thickness of the flexible inner layer 2 of the hemispherical shell is 1 mm.
The thickness of the hemispherical shell metal outer layer 1 is 0.2 mm.
Claims (9)
1. The utility model provides a take electroplating polishing bistrique of flexible layer which characterized in that: comprises a hemispherical shell metal outer layer (1), a hemispherical shell flexible inner layer (2), a connecting seat sleeve (3), a locking sleeve (4) and a rigid supporting seat (5);
the outer surface of the hemispherical shell metal outer layer (1) is electroplated with a polishing layer; a connecting part I (11) is extended from the end surface of the hemispherical shell metal outer layer (1); the connecting part I (11) is a cylinder; two positioning holes (111) are formed in the cylinder;
the hemispherical shell flexible inner layer (2) is attached to the inner part of the hemispherical shell metal outer layer (1); the structural rigidity of the flexible inner layer (2) of the hemispherical shell is greater than that of the metal outer layer (1) of the hemispherical shell; the size deformation elasticity of the flexible inner layer (2) of the hemispherical shell is smaller than that of the metal outer layer (1) of the hemispherical shell;
the connecting seat sleeve (3) is a hollow cylinder, and the outer wall of the upper end of the connecting seat sleeve is provided with a circular ring flange I (31); specifically, the connecting seat sleeve (3) is divided into two symmetrical parts, the outer wall of the lower end of each part is provided with a screw hole (32) matched with the positioning hole (111), and the shafts of the screw holes (32) on the outer walls of the two parts are collinear and are in the radial direction of the connecting seat sleeve (3);
the connecting part I (11) of the hemispherical shell metal outer layer (1) is arranged in an opening at the lower end of the connecting seat sleeve (3); the connecting seat sleeve (3) is connected with the connecting part I (11) through a screw (7);
a circular through hole is formed in the locking sleeve (4), and a circular flange II (41) is extended from the wall of the circular through hole; the lower end of the connecting seat sleeve (3) penetrates out of the circular flange II (41) of the locking sleeve (4), and the circular flange I (31) at the upper end of the connecting seat sleeve (3) is clamped on the circular flange II (41) of the locking sleeve (4);
the rigid support seat (5) comprises a connecting part II (51), an embedding part (52) and a metal handle (53);
the connecting part II (51) is disc-shaped; the connecting part II (51) is inserted into the locking sleeve (4) and tightly presses the connecting seat sleeve (3);
the lower end of the metal handle (53) is connected to the center of the upper end face of the connecting part II (51);
the embedded part (52) is cylindrical, and the lower end of the embedded part is provided with a hemispherical part which is matched with the interior of the hemispherical shell flexible inner layer (2); the upper end of the embedding part (52) is connected to the center of the lower end face of the connecting part II (51); the embedding part (52) is inserted into the connecting seat sleeve (3), and the hemisphere part at the lower end of the embedding part (52) is inserted into the hemisphere shell flexible inner layer (2) to tightly press the hemisphere shell flexible inner layer (2);
the structural rigidity of the rigid supporting seat (5) is far greater than that of the flexible inner layer (2) of the hemispherical shell.
2. An electroplated polishing grinding head with a flexible layer as claimed in claim 1, characterized in that: and a pre-tightened rubber gasket (6) is arranged between the circular flange I (31) and the circular flange II (41).
3. An electroplated polishing grinding head with a flexible layer as claimed in claim 1, characterized in that: the inner wall of the locking sleeve (4) is provided with internal threads;
the outer wall of the connecting part II (51) is provided with an external thread; the connecting part II (51) is connected in the locking sleeve (4) through threads.
4. An electroplated polishing grinding head with a flexible layer as claimed in claim 1, characterized in that: the metal handle (53) is cylindrical, and 2-4 gaps (531) are uniformly distributed on the outer wall of the metal handle (53); the diameter of the metal handle (53) is recorded as d; the length of the gap (531) is 10mm, and the depth of the gap is 1/5 d-1/10 d of the diameter of the metal handle (53).
5. An electroplated polishing grinding head with a flexible layer as claimed in claim 1, characterized in that: the structural rigidity of the flexible inner layer (2) of the hemispherical shell is 2 times of that of the metal outer layer (1) of the hemispherical shell.
6. An electroplated polishing grinding head with a flexible layer as claimed in claim 1, characterized in that: the polishing layer is made of CBN or diamond; the average grain diameter of the abrasive of the polishing layer is 5-10 um.
7. An electroplated polishing grinding head with a flexible layer as claimed in claim 1, characterized in that: the outer wall of the locking sleeve (4) is provided with 2-4 uniformly distributed planes (42).
8. An electroplated polishing grinding head with a flexible layer as claimed in claim 1, characterized in that: the rigid supporting seat (5) and the connecting seat sleeve (3) are made of structural steel;
the hemispherical shell metal outer layer (1) is a hemispherical spring steel sheet or a soft steel sheet;
the hemispherical shell flexible inner layer (2) is a hemispherical rubber shell.
9. An electroplated polishing grinding head with a flexible layer as claimed in claim 1, characterized in that: the thickness of the connecting seat sleeve (3) is 1.5-3 mm;
the thickness of the hemispherical shell flexible inner layer (2) is 1-3 mm;
the thickness of the hemispherical shell metal outer layer (1) is 0.2-0.3 mm.
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| CA2964212A1 (en) * | 2014-10-15 | 2016-04-21 | Satisloh Ag | Polishing disc for a tool for fine processing of optically active surfaces on spectacle lenses |
| CN207788531U (en) * | 2017-08-22 | 2018-08-31 | 上海现代先进超精密制造中心有限公司 | A kind of adaptive aspherical pre-polish(ing) bistrique of elasticity |
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2019
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| DE3021244A1 (en) * | 1979-06-06 | 1980-12-11 | American Optical Corp | POLISHING HEAD TO PROCESS LENSES |
| KR20090006666A (en) * | 2007-07-12 | 2009-01-15 | 건양대학교산학협력단 | 2 degree of freedom ball bracket for stone grinding |
| CN102825543A (en) * | 2012-09-18 | 2012-12-19 | 厦门大学 | Air bag polishing head for air bag polishing |
| CN103612201A (en) * | 2013-11-27 | 2014-03-05 | 厦门大学 | Semi-flexible air sac head for polishing |
| CN104175192A (en) * | 2014-08-08 | 2014-12-03 | 中国科学院长春光学精密机械与物理研究所 | Multi-ring self-adaptive polishing grinding head |
| CA2964212A1 (en) * | 2014-10-15 | 2016-04-21 | Satisloh Ag | Polishing disc for a tool for fine processing of optically active surfaces on spectacle lenses |
| CN207788531U (en) * | 2017-08-22 | 2018-08-31 | 上海现代先进超精密制造中心有限公司 | A kind of adaptive aspherical pre-polish(ing) bistrique of elasticity |
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| CN110936288A (en) | 2020-03-31 |
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