CN117549127A - Flexible processing method for sixteen-station clamp of numerical control machine tool - Google Patents

Flexible processing method for sixteen-station clamp of numerical control machine tool Download PDF

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Publication number
CN117549127A
CN117549127A CN202311625324.XA CN202311625324A CN117549127A CN 117549127 A CN117549127 A CN 117549127A CN 202311625324 A CN202311625324 A CN 202311625324A CN 117549127 A CN117549127 A CN 117549127A
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CN
China
Prior art keywords
sixteen
numerical control
positioning
shaped
machine tool
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Pending
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CN202311625324.XA
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Chinese (zh)
Inventor
李会芹
薛海波
丁永健
李耀
陈帮军
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Huanghe Science and Technology College
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Huanghe Science and Technology College
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Publication date
Application filed by Huanghe Science and Technology College filed Critical Huanghe Science and Technology College
Priority to CN202311625324.XA priority Critical patent/CN117549127A/en
Publication of CN117549127A publication Critical patent/CN117549127A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/02—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of drums or rotating tables or discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • B23Q16/02—Indexing equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/061—Work-clamping means adapted for holding a plurality of workpieces

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

The invention discloses a flexible processing method for sixteen-station clamps of a numerical control machine tool, which comprises the following steps: (1) assembling sixteen-station clamps; (2) Mounting the assembled sixteen-station clamp on a numerical control machine tool; (3) clamping the workpiece to be processed on a sixteen-station clamp; (4) Starting the machine tool to process sixteen workpieces to be processed. The fixture clamp is assembled by adopting a split structure, has the advantages of compact structure, reliable connection and accurate positioning, and the machining efficiency is greatly improved by sixteen clamping stations. The invention adopts the integrated structure of the special fixture, the combined fixture and the group fixture and the adjustable element modularization to realize the functions of the fixture such as one machine with multiple orders, one machine with multiple positions, one machine with multiple surfaces, strong adjustability, strong universality and high precision, thereby greatly improving the flexibility degree.

Description

Flexible processing method for sixteen-station clamp of numerical control machine tool
Technical Field
The invention belongs to the technical field of numerical control machine tool machining, and particularly relates to a flexible machining method for a sixteen-station fixture of a numerical control machine tool.
Background
The manufacturing industry is the main body of national economy and is the basis of the national origin, the happy country and the strong country. The manufacturing industry with international competitiveness is created, and is a necessary way for improving comprehensive national force, guaranteeing national safety and building the world. High-grade numerical control machine tools and basic manufacturing equipment are one of ten fields.
The machine tool as a working machine in equipment manufacturing industry, namely a high-grade numerical control machine tool, has the functions of intelligence, compounding, multi-axis linkage, network communication and the like. Numerical control machine tools are dual-purpose technologies for military and civil use, and the technical level of the numerical control machine tools represents the development level of equipment manufacturing industry in one country or one region. In order to improve the level of equipment manufacturing industry in China, reduce and surpass the gap between the equipment manufacturing industry and the developed country manufacturing industry, the development of numerical control machine tools is a necessary way. In order to improve the machining efficiency of the numerical control machine tool, it is needed to design a multi-station tool fixture so as to realize a finish machining mode of 'one machine for multiple orders', 'one machine for multiple positions', 'one machine for multiple surfaces'.
Disclosure of Invention
The invention aims to provide a flexible processing method for a sixteen-station clamp of a numerical control machine tool, which has the advantages of compact structure, convenience in operation and capability of improving numerical control processing efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme: the flexible processing method for the sixteen-station clamp of the numerical control machine tool comprises the following steps of:
(1) Assembling sixteen-station clamps;
(2) Mounting the assembled sixteen-station clamp on a numerical control machine tool;
(3) Clamping a workpiece to be processed on a sixteen-station clamp;
(4) Starting the machine tool to process sixteen workpieces to be processed.
Sixteen station anchor clamps include the cross revolving stage post, preceding connection locating component, back connection locating component and four positioning bottom plates, cross revolving stage post central line sets up along fore-and-aft direction level, preceding connection locating component is established at cross revolving stage post front end face, back connection locating component is established at cross revolving stage post rear end face, cross revolving stage post excircle evenly is equipped with four rectangle planes along the circumferencial direction, four positioning bottom plates are fixed respectively and are established on a rectangle plane, every positioning bottom plate surface is equipped with preceding fixed boss from front to back in proper order, preceding wedge expansion clamping device, well fixed boss, back wedge expansion clamping device and back fixed boss, all form the work piece centre gripping station between preceding fixed boss and the preceding wedge expansion clamping device, between preceding wedge expansion clamping device and the well fixed boss, well fixed boss and back wedge expansion clamping device and the back fixed boss.
The front connecting and positioning assembly and the rear connecting and positioning assembly are identical in structure and are symmetrical in front and back, the centers of the front end face and the rear end face of the cross turntable column are respectively provided with a mounting groove, the front connecting and positioning assembly and the rear connecting and positioning assembly comprise a flange plate and a T-shaped positioning column, the center of the flange plate is provided with a through hole, the large end of the T-shaped positioning column extends into the mounting grooves and is assembled in the mounting grooves in a transitional manner, the flange plate is fixedly connected with the end face of the cross turntable column through four first countersunk bolts, the small end penetrating parts of the T-shaped positioning column extend out of the through holes, and positioning pins are correspondingly inserted between the flange plate and the end face of the cross turntable column;
the flange at the front end is connected with a fourth axis numerical control indexing turntable of the machine tool through a front connecting bolt, and the small end of the T-shaped positioning column at the front end stretches into a central hole of the fourth axis numerical control indexing turntable;
the flange plate at the rear end is connected with the hydraulic disc brake tailstock through a rear connecting bolt, and the small end of the T-shaped positioning column at the rear end stretches into the center hole of the hydraulic disc brake tailstock.
The positioning bottom plate is fixedly connected with the cross turntable column through second countersunk bolts in the front fixing boss, the middle fixing boss and the rear fixing boss.
The front wedge-shaped expansion clamping device and the rear wedge-shaped expansion clamping device are identical in structure and are arranged in a front-back symmetrical mode, the front wedge-shaped expansion clamping device and the rear wedge-shaped expansion clamping device comprise a front clamping wedge block, a middle V-shaped block and a rear clamping wedge block, the front clamping wedge block and the rear clamping wedge block are fixedly connected to a positioning bottom plate, the front side surface of the front clamping wedge block and the rear side surface of the rear clamping wedge block are all plane structures perpendicular to the surface of the positioning bottom plate, a V-shaped groove is formed between the front side surface of the front clamping wedge block and the front side surface of the rear clamping wedge block, the middle V-shaped block is assembled in the V-shaped groove, and the middle V-shaped block is connected with the positioning bottom plate through a third countersunk bolt.
The left sides of the front fixing boss, the middle fixing boss and the rear fixing boss are connected with a positioning side plate extending to the left side of the workpiece clamping station through positioning bolts; and a chip containing groove with the length direction parallel to the central line of the cross rotary table is arranged between two adjacent rectangular planes on the cross rotary table column, and the bottom profile of the cross section of the chip containing groove is an arc with the central angle of 90 degrees.
The specific operation process of the step (1) is as follows: the four positioning bottom plates are correspondingly arranged on four rectangular planes of the cross turntable column one by one, and second countersunk bolts penetrate into countersunk holes of the front fixing boss, the middle fixing boss and the rear fixing boss to be fixedly connected with the cross turntable column; then the large end of the T-shaped positioning column is inserted into and transitionally assembled in an installation groove on the end face of the cross turntable column; then sleeving a central hole of the flange plate on the small end of the T-shaped positioning column, correspondingly inserting a positioning pin shaft between the flange plate and the end face of the cross turntable column, and fixedly connecting the flange plate with the end face of the cross turntable column through four first countersunk bolts; and finally, respectively assembling eight middle V-shaped blocks into V-shaped grooves formed between eight groups of adjacent front clamping wedges and rear clamping wedges, wherein the middle V-shaped blocks are fixedly connected with the positioning bottom plate through third countersunk bolts.
The specific operation process of the step (2) is as follows: extending the small end of the T-shaped positioning column at the front end into a central hole of a fourth axis numerical control indexing turntable of the numerical control machine tool, and fixedly connecting a flange at the front end with the fourth axis numerical control indexing turntable of the machine tool through a front connecting bolt; and then the small end of the T-shaped positioning column at the rear end extends into a central hole of the hydraulic disc brake tailstock, and the flange plate at the rear end is fixedly connected with the hydraulic disc brake tailstock through a rear connecting bolt.
The specific operation process of the step (3) is as follows: the method comprises the steps of placing workpieces to be machined one by one on sixteen workpiece clamping stations formed among a front fixing boss and a front wedge-shaped expansion clamping device, a front wedge-shaped expansion clamping device and a middle fixing boss, a middle fixing boss and a rear wedge-shaped expansion clamping device and among the rear wedge-shaped expansion clamping device and the rear fixing boss, enabling the left side of the workpieces to be machined to be in contact with a positioning side plate, ensuring that the installation position of the workpieces to be machined is accurately installed under the positioning of three surfaces (the upper surface of a positioning bottom plate, the side surfaces of the fixing boss and the side surfaces of the positioning side plate), then screwing up a third countersunk bolt, shortening the distance between a middle V-shaped block and the positioning bottom plate, enabling wedges on the front side and the rear side of the middle V-shaped block to respectively generate forward and backward extrusion on the wedge surfaces of a front clamping wedge block and a rear clamping wedge block, enabling the front side surface of the front clamping wedge block to move forward to clamp the rear side of one workpiece to be machined so as to be fixed, and enabling the rear clamping wedge side surface of the rear clamping wedge block to move backward to clamp the front side of the other workpiece to be machined so as to be fixed.
The specific operation process of the step (4) is as follows: starting a numerical control machine tool, and driving the whole fixture to rotate by a fourth axis numerical control indexing turntable, wherein a cutter of the numerical control machine tool sequentially processes 16 workpieces to be processed; after the machining is finished, the numerical control machine tool is closed, the third countersunk head bolt is unscrewed, the distance between the middle V-shaped block and the positioning bottom plate is increased, and the machined workpiece is taken down.
By adopting the technical scheme, the wedge-shaped expansion clamping device locks the moving structure according to the principles of inclined plane wedging and spiral clamping, and the two sides of the self-locking mechanism used for fixing the wedge clamps are reinforced by means of angle effect, so that parameters such as the inclination angle value alpha of the front side and the rear side of the centering V-shaped block, the clamping force, the wedge wedging force and the like are required to be selected and calculated. And (3) carrying out deformation and stress analysis on the clamping mechanism when the clamping mechanism is loaded, and checking the strength and the rigidity of the structure according to the finite element analysis result. The front clamping wedge block, the rear clamping wedge block and the positioning bottom plate are manufactured by adopting an integrated structure.
The chip containing grooves are arranged between two adjacent rectangular planes on the cross rotary table column, and have good chip removing effect during processing.
In conclusion, the sixteen-station clamp is assembled by adopting a split structure, has the advantages of compact structure, reliable connection and accurate positioning, and the sixteen clamping stations greatly improve the processing efficiency. The invention adopts the integrated structure of the special fixture, the combined fixture and the group fixture and the adjustable element modularization to realize the functions of one machine with multiple orders, one machine with multiple positions, one machine with multiple surfaces, strong adjustability, strong universality and high precision, greatly improves the flexibility degree, and innovates a novel flexible fixture which can be compared with foreign flexible fixtures in structure, economy and practicability.
Drawings
FIG. 1 is a top view of a sixteen-station fixture of the present invention;
FIG. 2 is an axial cross-sectional view of a sixteen-station fixture of the present invention;
FIG. 3 is a left side view of FIG. 1;
fig. 4 is an end view of the cross-rotor post of fig. 1.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples.
As shown in fig. 1 to 4, the flexible processing method for the sixteen-station clamp of the numerical control machine tool comprises the following steps:
(1) Assembling sixteen-station clamps;
(2) Mounting the assembled sixteen-station clamp on a numerical control machine tool;
(3) Clamping a workpiece to be processed on a sixteen-station clamp;
(4) Starting the machine tool to process sixteen workpieces to be processed.
Sixteen station fixtures include cross rotary table post 1, preceding connection locating component, back connection locating component and four positioning bottom plates 2, cross rotary table post 1 central line sets up along fore-and-aft direction level, preceding connection locating component is established at cross rotary table post 1 front end face, back connection locating component is established at cross rotary table post 1 rear end face, cross rotary table post 1 excircle evenly is equipped with four rectangle planes along the circumferencial direction, four positioning bottom plates 2 are fixed respectively and are established on a rectangle plane, every positioning bottom plate 2 surface is equipped with preceding fixed boss 3 from front to back in proper order, preceding wedge expansion clamping device, well fixed boss 4, back wedge expansion clamping device and back fixed boss 5, all form work piece centre gripping station 6 between preceding fixed boss 3 and the preceding wedge expansion clamping device, well fixed boss 4 and back wedge expansion clamping device and the back fixed boss 5.
The front connection positioning assembly and the rear connection positioning assembly are identical in structure and are symmetrical in front and back, the centers of the front end face and the rear end face of the cross rotary table column 1 are provided with mounting grooves 7, the front connection positioning assembly and the rear connection positioning assembly comprise a flange 8 and a T-shaped positioning column (not shown), a through hole 9 is formed in the center of the flange 8, the large end of the T-shaped positioning column extends into and is transitionally assembled in the mounting grooves 7, the flange 8 is fixedly connected with the end face of the cross rotary table column 1 through four first countersunk bolts 10, a small end penetrating part of the T-shaped positioning column extends out of the through hole 9, and a positioning pin 11 is correspondingly inserted between the flange 8 and the end face of the cross rotary table column 1;
the flange 8 at the front end is connected with a fourth axis numerical control indexing turntable (not shown) of the machine tool through a front connecting bolt (not shown), and the small end of the T-shaped positioning column at the front end stretches into a central hole of the fourth axis numerical control indexing turntable;
the flange 8 at the rear end is connected with a hydraulic disc brake tailstock (not shown) through a rear connecting bolt (not shown), and the small end of the T-shaped positioning column at the rear end extends into the central hole of the hydraulic disc brake tailstock.
The positioning bottom plate 2 is fixedly connected with the cross rotary table column 1 through second countersunk bolts 12 countersunk in the front fixing boss 3, the middle fixing boss 4 and the rear fixing boss 5.
The front wedge-shaped expansion clamping device and the rear wedge-shaped expansion clamping device are identical in structure and are symmetrically arranged in front and back, each front wedge-shaped expansion clamping device and each rear wedge-shaped expansion clamping device comprise a front clamping wedge 13, a middle V-shaped block 14 and a rear clamping wedge 15, each front clamping wedge 13 and each rear clamping wedge 15 are fixedly connected to the positioning bottom plate 2, the front side surface of each front clamping wedge 13 and the rear side surface of each rear clamping wedge 15 are of a plane structure perpendicular to the surface of the positioning bottom plate 2, a V-shaped groove is formed between the rear side surface of each front clamping wedge 13 and the front side surface of each rear clamping wedge 15, the middle V-shaped block 14 is assembled in the corresponding V-shaped groove, and the middle V-shaped block 14 is connected with the positioning bottom plate 2 through a third countersunk bolt 16.
The left sides of the front fixing boss 3, the middle fixing boss 4 and the rear fixing boss 5 are connected with a positioning side plate 18 extending to the left side of the workpiece clamping station 6 through positioning bolts 17.
Chip containing grooves 19 with the length direction parallel to the center line of the cross turntable are arranged between two adjacent rectangular planes on the cross turntable column 1, and the bottom profile of the cross section of each chip containing groove 19 is an arc with the central angle of 90 degrees.
The specific operation process of the step (1) is as follows: the four positioning bottom plates 2 are correspondingly arranged on four rectangular planes of the cross rotary table column 1 one by one, and second countersunk bolts 12 penetrate into countersunk holes of the front fixing boss 3, the middle fixing boss 4 and the rear fixing boss 5 to be fixedly connected with the cross rotary table column 1; the large end of the T-shaped positioning column is inserted into and transitionally assembled into the mounting groove 7 on the end face of the cross rotary table column 1; the center hole of the flange 8 is sleeved on the small end of the T-shaped positioning column, a positioning pin shaft 11 is correspondingly inserted between the flange 8 and the end face of the cross rotary table column 1, and then the flange 8 is fixedly connected with the end face of the cross rotary table column 1 through four first countersunk bolts 10; finally, eight middle V-shaped blocks 14 are respectively assembled into V-shaped grooves formed between eight groups of adjacent front clamping wedges 13 and rear clamping wedges 15, and the middle V-shaped blocks 14 are fixedly connected with the positioning bottom plate 2 through third countersunk bolts 16.
The specific operation process of the step (2) is as follows: extending the small end of the T-shaped positioning column at the front end into a central hole of a fourth axis numerical control indexing turntable of the numerical control machine tool, and fixedly connecting a flange 8 at the front end with the fourth axis numerical control indexing turntable of the machine tool through a front connecting bolt; the small end of the T-shaped positioning column at the rear end extends into the central hole of the hydraulic disc brake tailstock, and the flange plate 8 at the rear end is fixedly connected with the hydraulic disc brake tailstock through a rear connecting bolt.
The specific operation process of the step (3) is as follows: the left side of the workpiece to be processed is contacted with the positioning side plate 18 to ensure that the installation position of the workpiece to be processed is accurately installed under the positioning of three surfaces (the upper surface of the positioning bottom plate 2, the side surface of the fixing boss and the side surface of the positioning side plate 18), then the third countersunk head bolt 16 is screwed, the distance between the middle V-shaped block 14 and the positioning bottom plate 2 is reduced, the wedge surfaces of the front clamping wedge 13 and the rear clamping wedge 15 on the front and rear sides of the middle V-shaped block 14 are respectively extruded forwards and backwards, the front side surface of the front clamping wedge 13 moves forwards to clamp the rear side surface of one workpiece to be processed to be fixed, and the rear side surface of the rear clamping wedge 15 moves backwards to clamp the front side surface of the other workpiece to be processed to be fixed.
The specific operation process of the step (4) is as follows: and starting the numerical control machine tool, and driving the whole fixture to rotate by a fourth axis numerical control indexing turntable, wherein a cutter of the numerical control machine tool sequentially processes 16 workpieces to be processed. After the machining is completed, the numerical control machine tool is closed, the third countersunk head bolt 16 is unscrewed, the distance between the middle V-shaped block 14 and the positioning bottom plate 2 is increased, and the machined workpiece is taken down.
The four workpiece clamping stations 6 arranged on each block positioning bottom plate 2 can be used for clamping four clamping positions of one workpiece to be processed or two clamping positions of two workpieces side by side in front of and behind. The tool clamp disclosed by the invention can be used for simultaneously processing four or eight workpieces to be processed.
In addition, when clamping and positioning workpieces to be processed of different models or sizes, gaskets can be arranged between the positioning side plates 18 and the left outer side surfaces of the front fixing boss 3, the middle fixing boss 4 and the rear fixing boss 5 respectively so as to adjust the positions of the positioning side plates 18 in the left-right direction, thereby adjusting the accurate positioning of the workpieces to be processed in the left-right direction.
The foregoing embodiments illustrate the basic principles and features of the present invention, but the foregoing is merely illustrative of the preferred embodiments of the present invention and is not limited to the embodiments. Many modifications and variations may be made by one of ordinary skill in the art, given the benefit of this disclosure, without departing from the spirit of the invention and the scope of the claims. Accordingly, the patent and scope of the invention should be pointed out with reference to the appended claims.

Claims (10)

1. The flexible processing method for the sixteen-station clamp of the numerical control machine tool is characterized by comprising the following steps of: the method comprises the following steps:
(1) Assembling sixteen-station clamps;
(2) Mounting the assembled sixteen-station clamp on a numerical control machine tool;
(3) Clamping a workpiece to be processed on a sixteen-station clamp;
(4) Starting the machine tool to process sixteen workpieces to be processed.
2. The flexible processing method for sixteen-station clamps of the numerical control machine tool according to claim 1, characterized in that: sixteen station anchor clamps include the cross revolving stage post, preceding connection locating component, back connection locating component and four positioning bottom plates, cross revolving stage post central line sets up along fore-and-aft direction level, preceding connection locating component is established at cross revolving stage post front end face, back connection locating component is established at cross revolving stage post rear end face, cross revolving stage post excircle evenly is equipped with four rectangle planes along the circumferencial direction, four positioning bottom plates are fixed respectively and are established on a rectangle plane, every positioning bottom plate surface is equipped with preceding fixed boss from front to back in proper order, preceding wedge expansion clamping device, well fixed boss, back wedge expansion clamping device and back fixed boss, all form the work piece centre gripping station between preceding fixed boss and the preceding wedge expansion clamping device, between preceding wedge expansion clamping device and the well fixed boss, well fixed boss and back wedge expansion clamping device and the back fixed boss.
3. The flexible processing method for sixteen-station clamps of the numerical control machine tool according to claim 2, characterized in that: the front connecting and positioning assembly and the rear connecting and positioning assembly are identical in structure and are symmetrical in front and back, the centers of the front end face and the rear end face of the cross turntable column are respectively provided with a mounting groove, the front connecting and positioning assembly and the rear connecting and positioning assembly comprise a flange plate and a T-shaped positioning column, the center of the flange plate is provided with a through hole, the large end of the T-shaped positioning column extends into the mounting grooves and is assembled in the mounting grooves in a transitional manner, the flange plate is fixedly connected with the end face of the cross turntable column through four first countersunk bolts, the small end penetrating parts of the T-shaped positioning column extend out of the through holes, and positioning pins are correspondingly inserted between the flange plate and the end face of the cross turntable column;
the flange at the front end is connected with a fourth axis numerical control indexing turntable of the machine tool through a front connecting bolt, and the small end of the T-shaped positioning column at the front end stretches into a central hole of the fourth axis numerical control indexing turntable;
the flange plate at the rear end is connected with the hydraulic disc brake tailstock through a rear connecting bolt, and the small end of the T-shaped positioning column at the rear end stretches into the center hole of the hydraulic disc brake tailstock.
4. A flexible processing method for sixteen-station clamps of a numerical control machine according to claim 3, characterized in that: the positioning bottom plate is fixedly connected with the cross turntable column through second countersunk bolts in the front fixing boss, the middle fixing boss and the rear fixing boss.
5. The flexible processing method for the sixteen-station clamp of the numerical control machine tool according to claim 4, which is characterized in that: the front wedge-shaped expansion clamping device and the rear wedge-shaped expansion clamping device are identical in structure and are arranged in a front-back symmetrical mode, the front wedge-shaped expansion clamping device and the rear wedge-shaped expansion clamping device comprise a front clamping wedge block, a middle V-shaped block and a rear clamping wedge block, the front clamping wedge block and the rear clamping wedge block are fixedly connected to a positioning bottom plate, the front side surface of the front clamping wedge block and the rear side surface of the rear clamping wedge block are all plane structures perpendicular to the surface of the positioning bottom plate, a V-shaped groove is formed between the front side surface of the front clamping wedge block and the front side surface of the rear clamping wedge block, the middle V-shaped block is assembled in the V-shaped groove, and the middle V-shaped block is connected with the positioning bottom plate through a third countersunk bolt.
6. The flexible processing method for the sixteen-station clamp of the numerical control machine tool according to claim 5, which is characterized in that: the left sides of the front fixing boss, the middle fixing boss and the rear fixing boss are connected with a positioning side plate extending to the left side of the workpiece clamping station through positioning bolts; and a chip containing groove with the length direction parallel to the central line of the cross rotary table is arranged between two adjacent rectangular planes on the cross rotary table column, and the bottom profile of the cross section of the chip containing groove is an arc with the central angle of 90 degrees.
7. The flexible processing method for the sixteen-station clamp of the numerical control machine tool according to claim 6, wherein the flexible processing method comprises the following steps: the specific operation process of the step (1) is as follows: the four positioning bottom plates are correspondingly arranged on four rectangular planes of the cross turntable column one by one, and second countersunk bolts penetrate into countersunk holes of the front fixing boss, the middle fixing boss and the rear fixing boss to be fixedly connected with the cross turntable column; then the large end of the T-shaped positioning column is inserted into and transitionally assembled in an installation groove on the end face of the cross turntable column; then sleeving a central hole of the flange plate on the small end of the T-shaped positioning column, correspondingly inserting a positioning pin shaft between the flange plate and the end face of the cross turntable column, and fixedly connecting the flange plate with the end face of the cross turntable column through four first countersunk bolts; and finally, respectively assembling eight middle V-shaped blocks into V-shaped grooves formed between eight groups of adjacent front clamping wedges and rear clamping wedges, wherein the middle V-shaped blocks are fixedly connected with the positioning bottom plate through third countersunk bolts.
8. The flexible processing method for sixteen-station clamps of the numerical control machine tool according to claim 7, wherein the flexible processing method comprises the following steps: the specific operation process of the step (2) is as follows: extending the small end of the T-shaped positioning column at the front end into a central hole of a fourth axis numerical control indexing turntable of the numerical control machine tool, and fixedly connecting a flange at the front end with the fourth axis numerical control indexing turntable of the machine tool through a front connecting bolt; and then the small end of the T-shaped positioning column at the rear end extends into a central hole of the hydraulic disc brake tailstock, and the flange plate at the rear end is fixedly connected with the hydraulic disc brake tailstock through a rear connecting bolt.
9. The flexible processing method for the sixteen-station clamp of the numerical control machine tool according to claim 8, wherein the flexible processing method comprises the following steps: the specific operation process of the step (3) is as follows: the method comprises the steps of placing workpieces to be machined one by one on sixteen workpiece clamping stations formed among a front fixing boss and a front wedge-shaped expansion clamping device, a front wedge-shaped expansion clamping device and a middle fixing boss, a middle fixing boss and a rear wedge-shaped expansion clamping device and among the rear wedge-shaped expansion clamping device and the rear fixing boss, enabling the left side of the workpieces to be machined to be in contact with a positioning side plate, ensuring that the installation position of the workpieces to be machined is accurately installed under the positioning of three surfaces (the upper surface of a positioning bottom plate, the side surfaces of the fixing boss and the side surfaces of the positioning side plate), then screwing up a third countersunk bolt, shortening the distance between a middle V-shaped block and the positioning bottom plate, enabling wedges on the front side and the rear side of the middle V-shaped block to respectively generate forward and backward extrusion on the wedge surfaces of a front clamping wedge block and a rear clamping wedge block, enabling the front side surface of the front clamping wedge block to move forward to clamp the rear side of one workpiece to be machined so as to be fixed, and enabling the rear clamping wedge side surface of the rear clamping wedge block to move backward to clamp the front side of the other workpiece to be machined so as to be fixed.
10. The flexible processing method for sixteen-station clamps of the numerical control machine tool according to claim 9, characterized in that: the specific operation process of the step (4) is as follows: starting a numerical control machine tool, and driving the whole fixture to rotate by a fourth axis numerical control indexing turntable, wherein a cutter of the numerical control machine tool sequentially processes 16 workpieces to be processed; after the machining is finished, the numerical control machine tool is closed, the third countersunk head bolt is unscrewed, the distance between the middle V-shaped block and the positioning bottom plate is increased, and the machined workpiece is taken down.
CN202311625324.XA 2023-11-30 2023-11-30 Flexible processing method for sixteen-station clamp of numerical control machine tool Pending CN117549127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311625324.XA CN117549127A (en) 2023-11-30 2023-11-30 Flexible processing method for sixteen-station clamp of numerical control machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311625324.XA CN117549127A (en) 2023-11-30 2023-11-30 Flexible processing method for sixteen-station clamp of numerical control machine tool

Publications (1)

Publication Number Publication Date
CN117549127A true CN117549127A (en) 2024-02-13

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ID=89820355

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Application Number Title Priority Date Filing Date
CN202311625324.XA Pending CN117549127A (en) 2023-11-30 2023-11-30 Flexible processing method for sixteen-station clamp of numerical control machine tool

Country Status (1)

Country Link
CN (1) CN117549127A (en)

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