CN116079343A - Method for batch processing of cavity structural members - Google Patents
Method for batch processing of cavity structural members Download PDFInfo
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- CN116079343A CN116079343A CN202310041140.2A CN202310041140A CN116079343A CN 116079343 A CN116079343 A CN 116079343A CN 202310041140 A CN202310041140 A CN 202310041140A CN 116079343 A CN116079343 A CN 116079343A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention relates to the technical field of machining processes and devices, in particular to a method for machining cavity structural members in batches. The method comprises the following steps: the upper plane and the lower plane of the to-be-machined workpiece are used as the upper plane and the lower plane of the cavity blank, the to-be-machined workpiece is cut according to cutting parameters, and the cavity blank with the inner contour and the outer contour is formed by cutting, wherein the number of the cavity blank is at least greater than 1; carrying out plane grinding on an upper plane and a lower plane of a cavity blank with the number at least greater than 1 based on the dimensional structure parameters required by the plane grinding process; grinding the inner hole of the cavity blank piece based on the dimensional structural parameters required by the inner hole grinding process; and (3) carrying out finished product processing on the cavity blank piece with the number at least greater than 1 based on the finished product processing structural dimension parameter of the cavity structural member. The beneficial effects of the invention are as follows: the cavity structure is processed in batches, the processing efficiency is high, and the processing cost is low.
Description
Technical Field
The invention relates to the technical field of machining processes and devices, in particular to a method for machining cavity structural members in batches.
Background
The cavity structural member is an important component of inertial devices such as gyroscopes, and the processing precision and efficiency of the cavity structural member play an important role in the production of the inertial devices such as gyroscopes. In the prior art, the cavity structural member is mainly machined by adopting a numerical control machine tool, so that the machining efficiency is low and the machining cost is high. Therefore, there is a need for an efficient, low cost, high precision method of machining cavity structures.
Disclosure of Invention
Aiming at the problems in the background art, the invention provides a method for processing cavity structural members in batches, which solves the problems of low processing efficiency, high processing cost and the like in the prior art.
The technical scheme for solving the technical problems is as follows:
a method of batch processing cavity structures comprising the steps of:
the upper plane and the lower plane of the to-be-machined workpiece are used as the upper plane and the lower plane of the cavity blank, the to-be-machined workpiece is cut according to cutting parameters, and the cavity blank with the inner contour and the outer contour is formed by cutting, wherein the number of the cavity blank is at least greater than 1;
carrying out plane grinding on an upper plane and a lower plane of a cavity blank with the number at least greater than 1 based on the dimensional structure parameters required by the plane grinding process;
grinding the inner hole of the cavity blank piece based on the dimensional structural parameters required by the inner hole grinding process;
and (3) carrying out finished product processing on the cavity blank piece with the number at least greater than 1 based on the finished product processing structural dimension parameter of the cavity structural member.
Further, the to-be-machined piece is selected according to the height and the outer contour dimension parameters of the cavity structural piece.
Further, the cutting parameters include: the parameters of the inner and outer contour dimensions of the cavity blank and the number of cavity blanks.
Further, the planar grinding process requires dimensional structural parameters including: the height dimension of the cavity structural member and the machining precision, roughness, flatness and parallelism parameters of the cavity structural member.
Further, the inner hole grinding process requires dimensional structure parameters including: inner hole and chamfer size of the cavity structural member, and roundness and surface roughness of the cavity structural member.
Further, the finished product processing structure size parameters include: and the size parameters of the blind holes and the through holes of the cavity structural member except the inner cavity.
Further, the step of cutting the workpiece to be processed according to the cutting parameters by taking the upper and lower planes of the workpiece to be processed as the upper and lower planes of the cavity blank, and forming the cavity blank with the inner and outer contours, the number of which is at least greater than 1, comprises the following steps: and tiling the to-be-processed workpiece on a workbench.
Further, the step of performing plane grinding on the upper and lower planes of the cavity blank with the number at least greater than 1 simultaneously based on the dimensional structural parameters required by the plane grinding process comprises the following steps: and horizontally pushing the cavity blank pieces with the number at least greater than 1 to the same workbench.
Further, the step of performing finished product processing on the cavity blank piece with the number at least greater than 1 based on the finished product processing structural dimension parameter of the cavity structural member comprises the following steps: and loading at least more than 1 cavity blank pieces on the same tool shaft.
Further, the finished product processing structure size parameters include: the appearance structure of the cavity structural member is prismatic, and a cylindrical through hole inner cavity taking the central line of the prism as an axis is arranged between the upper bottom surface and the lower bottom surface; a blind hole is arranged between each side wall and the inner cavity, the upper bottom surface of the blind hole penetrates through the side wall, the lower bottom surface of the blind hole does not penetrate through the inner cavity, and a columnar communication hole is arranged between two adjacent blind holes.
The beneficial effects of the invention are as follows: the cavity structure is processed in batches, the processing efficiency is high, and the processing cost is low.
Drawings
For easier understanding of the present invention, the present invention will be described in more detail by referring to specific embodiments shown in the drawings. These drawings depict only typical embodiments of the invention and are not therefore to be considered to limit the scope of the invention.
FIG. 1 is a flow chart of one embodiment of a method of batch processing chamber components according to the present invention.
Fig. 2 is a schematic diagram of a water knife cutting numerical control machine according to an embodiment of the present invention.
Fig. 3 is a schematic view of a certain working state of fig. 2.
FIG. 4 is a schematic diagram of the steps performed by the double-sided lapping machine in accordance with one embodiment of the present invention.
Fig. 5 is a schematic view illustrating a certain operation state of fig. 4.
Fig. 6 is a schematic diagram of the steps performed by the numerically controlled internal grinding machine according to an embodiment of the present invention.
Fig. 7 is a schematic view illustrating a certain operation state of fig. 6.
Fig. 8 is a schematic diagram of the four-axis numerically controlled milling machine performing relevant steps in an embodiment of the present invention.
Fig. 9 is a schematic view illustrating a certain operation state of fig. 8.
Fig. 10 is a schematic diagram of clamping a cavity blank by a four-axis numerically controlled milling machine according to an embodiment of the present invention.
Fig. 11 is a perspective view of a cavity structure according to an embodiment of the present invention.
Fig. 12 is a schematic structural view of a cavity structure according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described below with reference to the accompanying drawings so that those skilled in the art can better understand the present invention and implement it, but the examples listed are not limiting to the present invention, and the following examples and technical features of the examples can be combined with each other without conflict, wherein like parts are denoted by like reference numerals.
A preferred embodiment of the method of batch processing cavity structures of the present invention is described below. As shown in fig. 1, includes:
step S1: and carrying out appearance blanking on the to-be-machined workpiece, preferably, selecting the to-be-machined workpiece according to the material selection parameters, taking the upper plane and the lower plane of the to-be-machined workpiece as the upper plane and the lower plane of the cavity blank, and cutting the to-be-machined workpiece according to the cutting parameters to form the cavity blank with the inner and outer outlines, wherein the number of the cavity blank is at least greater than 1.
Wherein, the material selection parameters include: and the height and the outer contour dimension parameters of the cavity structural member. The cutting parameters include: the parameters of the inner and outer contour dimensions of the cavity blank, the number of the cavity blank, the allowance parameters for reserving enough machining allowance for the subsequent machining steps, and the like. Preferably, the parameters of the inner and outer contour dimensions are the inner and outer contour dimensions of the cavity blank.
Step S1 is preferably performed by a water knife cutting numerical control machine. As shown in fig. 2-3, the corresponding water jet cutting numerical control machine mainly comprises a high-pressure pump, a numerical control machining platform, a jet cutting head, a sand supply system and a cooling system; cold cutting is carried out by utilizing high-pressure water jet; with three axes of rectilinear motion, the X/Y/Z axes. Before the water jet cutting numerical control machine is adopted to carry out appearance blanking on a workpiece to be processed, the workpiece to be processed is required to be clamped firstly, and the clamping mode is as follows: the to-be-machined piece is tiled on a workbench, and the to-be-machined piece is clamped according to preset requirements through hydraulic devices at two side ends.
Step S2: the planar grinding process is based on the requirement of dimensional structural parameters, and simultaneously, planar grinding is carried out on the upper plane and the lower plane of the cavity blank with the number at least greater than 1. Preferably, the planar grinding process requires dimensional structural parameters including: the height dimension of the cavity structural member and the machining precision, roughness, flatness and parallelism parameters of the cavity structural member. Wherein the parallelism parameter includes: parallelism of the upper plane and the lower plane of the cavity structural member.
Step S2 is preferably performed with a double-sided grinder. As shown in fig. 4-5, the corresponding double-sided lapping machine comprises two lapping plates, a cruise wheel, four motors, a sun wheel, a trimmer, etc.; the double-sided grinding machine is mainly used for double-sided grinding of crystals or other mechanical parts with two parallel sides, is particularly suitable for processing of fragile materials, the upper grinding disc and the lower grinding disc rotate in opposite directions, the cavity blank piece revolves in the carrier and rotates in a star shape, the grinding resistance is small, the workpiece is not damaged, and the uniform production efficiency of the two sides is high. Before the upper and lower planes of the cavity blank are subjected to plane grinding, the cavity blank is clamped; and (3) putting the cavity blank piece into a special loose pulley, horizontally pushing the loose pulley to a working table, and grinding by rotating a sun gear.
Step S3: and (3) grinding the inner hole of the cavity blank piece based on the dimensional structural parameters required by the inner hole grinding process, and grinding the inner cavity of the cavity structural piece. The inner hole grinding process requires dimensional structure parameters including: inner hole and chamfer size of the cavity structural member, and roundness and surface roughness of the cavity structural member.
Step S3 is preferably performed with a numerically controlled internal grinding machine. As shown in fig. 6-7, the corresponding numerical control internal grinder is mainly used for grinding the inner holes and the end faces of the bearing ring parts, ensures the precision of the inner holes and the end faces, and can meet the processing requirements of users on various parts. Before the inner hole grinding is carried out on the cavity blank, the cavity blank is clamped: and placing the cavity blank into a hydraulic tool clamped by a rotating shaft disc, and controlling a switch through an electromagnetic valve to clamp the cavity blank.
Step S4: and (3) carrying out finished product processing on the cavity blank piece with the number at least greater than 1 based on the finished product processing structural dimension parameter of the cavity structural member. For example, the cavity blank piece is processed based on the shape of the cavity structural member and the sizes of all the holes of the cavity, so that the processing size of the cavity blank piece meets the technical requirements of the drawing.
Step S4 is preferably performed with a four-axis numerically controlled milling machine. 8-9, the corresponding four-axis numerical control milling machine means that a fourth axis (such as a rotating shaft and an additional axis) is added on the original vertical three-axis machining center, namely, an X/Y/Z axis is a linear axis, and an A/B/C is a rotating shaft; the improved processing precision is higher, the efficiency is more than 10 times of that of common equipment, and the processing method is more applicable to parts with complex shapes and higher precision; integrates the functions of milling, boring, grinding, drilling, grinding and the like. Before the machining of the shape of the cavity blank and the residual dimensions of all holes of the inner cavity, the cavity blank needs to be clamped, as shown in fig. 10: the plurality of cavity blank pieces are locked after being loaded onto the tool shaft at one time (in a preferred embodiment, the tool shaft can be provided with more than 2 groups, so that the process is convenient to replace and clamp); the tool shaft with the cavity blank is integrally arranged on an additional shaft of the equipment, the tail end of the additional shaft is firstly propped against or clamped by a center or a chuck, and then is clamped by a hydraulic chuck at the other end of the additional shaft; thereby completing clamping of the blank pieces with the plurality of cavities.
Preferably, after each of the above processing steps is performed, an on-line inspection operation is performed.
Preferably, the method for batch processing cavity structural members of the present invention further comprises: and (5) an online measurement step. For example: a self-test report is provided.
Preferably, the method for batch processing cavity structural members of the present invention further comprises: and (5) a step of inspection. For example: and judging whether all the sizes of the machined cavity structural parts meet the technical requirements of drawings or not through a relevant precise measuring instrument.
Preferably, the method for batch processing cavity structural members of the present invention further comprises: and (3) polishing. For example: and delivering to a polishing engineer to complete subsequent work.
Preferably, the method for batch processing cavity structural members of the present invention further comprises: and (5) warehousing. For example: and (5) delivering the label to a warehouse management, and storing the label.
In a specific embodiment, the method for processing cavity structural members in batches is adopted to process the cavity structural members: selecting a microcrystalline glass plate with the thickness of 13+/-0.1 mm as a workpiece to be processed; the finished product processing size structure parameters of the cavity structural member comprise the following parameters:
the appearance structure of the cavity structural member is prismatic, and a cylindrical through hole inner cavity taking the central line of the prism as an axis is arranged between the upper bottom surface and the lower bottom surface. A blind hole is arranged between each side wall and the inner cavity, the upper bottom surface of the blind hole penetrates through the side wall, the lower bottom surface of the blind hole does not penetrate through the inner cavity, and a columnar communication hole is arranged between two adjacent blind holes.
Preferably, the blind holes comprise special blind holes, two blind holes spaced by one blind hole in the rest blind holes are identical in size, adjacent two blind holes are different in size, and the special blind holes are equal in bottom surface size and unequal in column height with the adjacent blind holes; the bottom surface size of the columnar communication hole is the same as the minimum bottom surface size in the adjacent blind holes. More preferably, for two adjacent blind holes, except for the special blind hole, the side wall of the blind hole with large bottom surface size is communicated with the lower bottom surface of the blind hole with small bottom surface size through the columnar communication hole in the shape of a straight line; the lower bottom surface of the special blind hole is communicated with the side wall of the adjacent blind hole through a column-shaped communication hole in the shape of Chinese character 'in'.
Preferably, the external structure of the cavity structural member is in an octagon shape, the blind holes are in a cylinder shape, the number of the blind holes is eight, wherein the first blind holes, the second blind holes and the third blind holes are sequentially adjacent, and the fourth blind holes, the fifth blind holes, the sixth blind holes, the seventh blind holes and the eighth blind holes are sequentially adjacent; the fourth, sixth and eighth blind holes have the same size, and the first, third, fifth and seventh blind holes have the same size; the bottom surfaces of the second blind hole and the third blind hole have the same size and are larger than the fourth blind hole; the third blind hole column height is larger than the fourth blind hole, and the fourth blind hole column height is larger than the second blind hole; the bottom surface of the columnar communication hole is the same as the fourth blind hole in size.
In a more preferred embodiment, as shown in FIGS. 11-12, the finished tooling dimensional structural parameters of the inventive tooling cavity structure include: the angle error of the six datum planes is better than 3' mm, N is smaller than 0.4mm (aperture number), N is smaller than 0.04mm (aperture local error), and the finish is better than grade IV; the four patch surfaces are light adhesive surfaces, the aperture is low, N is less than 0.2mm, N is less than 0.02mm, the angle difference is better than 2 'mm, the tower difference is better than 2' mm relative to the same reference surface, and the finish is better than grade III; chamfering 0.2+/-0.1 mm of each edge, each stress relief hole and each center hole; the three electrodes are provided with indium covers, and the area is larger than the diameter; chemical polishing is carried out on the inner wall of the inner cavity, and the actual value is the length corresponding to the position of the central intersection point of the capillary tube; all dimensions were corrected with a defined reference plane.
The beneficial effects of the invention are as follows: the cavity structure is processed in batches, the processing efficiency is high, and the processing cost is low.
The foregoing embodiments, but only the preferred embodiments of the invention, use of the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments" in this specification may all refer to one or more of the same or different embodiments in accordance with the present disclosure. Common variations and substitutions by those skilled in the art within the scope of the present invention are intended to be included in the scope of the present invention.
Claims (10)
1. A method of batch processing cavity structures comprising the steps of:
the upper plane and the lower plane of the to-be-machined workpiece are used as the upper plane and the lower plane of the cavity blank, the to-be-machined workpiece is cut according to cutting parameters, and the cavity blank with the inner contour and the outer contour is formed by cutting, wherein the number of the cavity blank is at least greater than 1;
carrying out plane grinding on an upper plane and a lower plane of a cavity blank with the number at least greater than 1 based on the dimensional structure parameters required by the plane grinding process;
grinding the inner hole of the cavity blank piece based on the dimensional structural parameters required by the inner hole grinding process;
and (3) carrying out finished product processing on the cavity blank piece with the number at least greater than 1 based on the finished product processing structural dimension parameter of the cavity structural member.
2. The method for batch processing of cavity structural members according to claim 1, wherein the to-be-processed member is selected according to the height and the outer contour dimension parameters of the cavity structural member.
3. The method of batch processing cavity structures of claim 1 wherein the cutting parameters comprise: the parameters of the inner and outer contour dimensions of the cavity blank and the number of cavity blanks.
4. The method of batch processing cavity structures of claim 1 wherein the planar grinding process requires dimensional structural parameters comprising: the height dimension of the cavity structural member and the machining precision, roughness, flatness and parallelism parameters of the cavity structural member.
5. The method of batch processing cavity structures of claim 1 wherein the bore grinding process requires dimensional structural parameters comprising: inner hole and chamfer size of the cavity structural member, and roundness and surface roughness of the cavity structural member.
6. The method of batch processing cavity structures of claim 1 wherein the finished process structure dimensional parameters comprise: and the size parameters of the blind holes and the through holes of the cavity structural member except the inner cavity.
7. The method of batch processing of cavity structures according to claim 1, wherein the step of cutting the to-be-processed workpiece according to cutting parameters with the upper and lower planes of the to-be-processed workpiece as the upper and lower planes of the cavity blank, the cutting forming a number of cavity blanks having inner and outer contours at least greater than 1 comprises the steps of: and tiling the to-be-processed workpiece on a workbench.
8. The method of batch processing of cavity structures according to claim 1, wherein the step of planar grinding the upper and lower planes of the cavity blank having a number at least greater than 1 based on the dimensional structural parameters required by the planar grinding process comprises the steps of: and horizontally pushing the cavity blank pieces with the number at least greater than 1 to the same workbench.
9. The method of batch processing cavity structures of claim 1 wherein the step of finishing cavity blanks having a number of at least greater than 1 based on finished process structural dimensional parameters of the cavity structures comprises the steps of: and loading at least more than 1 cavity blank pieces on the same tool shaft.
10. The method of batch processing cavity structures of claim 1 wherein the finished process structure dimensional parameters comprise: the appearance structure of the cavity structural member is prismatic, and a cylindrical through hole inner cavity taking the central line of the prism as an axis is arranged between the upper bottom surface and the lower bottom surface; a blind hole is arranged between each side wall and the inner cavity, the upper bottom surface of the blind hole penetrates through the side wall, the lower bottom surface of the blind hole does not penetrate through the inner cavity, and a columnar communication hole is arranged between two adjacent blind holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310041140.2A CN116079343A (en) | 2023-01-12 | 2023-01-12 | Method for batch processing of cavity structural members |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310041140.2A CN116079343A (en) | 2023-01-12 | 2023-01-12 | Method for batch processing of cavity structural members |
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| CN116079343A true CN116079343A (en) | 2023-05-09 |
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| CN202310041140.2A Pending CN116079343A (en) | 2023-01-12 | 2023-01-12 | Method for batch processing of cavity structural members |
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- 2023-01-12 CN CN202310041140.2A patent/CN116079343A/en active Pending
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