CN112296714A - Novel clamp for machining parts of precision machine tool - Google Patents
Novel clamp for machining parts of precision machine tool Download PDFInfo
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- CN112296714A CN112296714A CN202011256037.2A CN202011256037A CN112296714A CN 112296714 A CN112296714 A CN 112296714A CN 202011256037 A CN202011256037 A CN 202011256037A CN 112296714 A CN112296714 A CN 112296714A
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- 238000003754 machining Methods 0.000 title claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 90
- 230000003287 optical effect Effects 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims description 25
- 210000000078 claw Anatomy 0.000 claims description 16
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- 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
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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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/002—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders
- B23Q17/005—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders by measuring a force, a pressure or a deformation
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- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a novel clamp for machining precision machine tool parts, wherein after clamping and fixing the upper and lower ends of a workpiece or a shaft by each clamping jaw assembly and before machining, a lower clamping disc mechanism can downwards tension the workpiece or the shaft under the driving of a linear tensioning driver and then machine the workpiece or the shaft after reaching a certain tensioning pre-tightening force, a limiting and tension detecting seat can detect the tensioning pre-tightening force and feedback-control the linear tensioning driver, the bending resistance of the workpiece or the shaft during machining can be effectively ensured through the setting of the tensioning pre-tightening force, meanwhile, the workpiece can be prevented from being damaged when the workpiece is tensioned, and the adaptability is improved. The optical calibration assembly can ensure the accuracy of a workpiece during clamping, ensure the clamping of the workpiece coaxially up and down and improve the processing precision of the workpiece.
Description
Technical Field
The invention particularly relates to a novel clamp for machining parts of a precision machine tool, and relates to the related field of machining equipment.
Background
At present, in high-precision machining, the clamping precision of a clamp is important for the machining precision of a workpiece. Particularly, in the processing of shaft workpieces, in order to implement simultaneous processing of a plurality of stations, a plurality of shaft workpieces often need to be erected on a circumferentially arrayed fixture disc, however, for some shaft workpieces which are long and have small diameters, because a processing force is often applied along the radial direction of the workpiece in the processing, the workpiece is easily bent, and thus the processing precision of the workpiece is greatly affected. Therefore, it is important to reduce the influence of such a machining force on the deformation of the workpiece.
Disclosure of Invention
Therefore, in order to solve the above-mentioned disadvantages, the present invention provides a novel jig for machining a precision machine tool part.
The invention is realized in such a way, a novel clamp for processing precision machine tool parts is constructed, which comprises a clamping and positioning mechanism, an upper clamping disk mechanism, a lower clamping disk mechanism, an upper fixing column, an upper middle fixing column, a limiting and tension detecting seat, a lower middle connecting column, a lower tension column and a linear tensioning driver, wherein the upper fixing column which extends downwards and vertically is fixedly arranged at the upper end of the clamping and positioning mechanism, the upper clamping disk mechanism is fixedly arranged at the bottom of the upper fixing column, the upper fixing column is positioned at the central position of the upper clamping disk mechanism, the upper middle fixing column which is coaxial with the upper fixing column is connected at the lower end of the upper fixing column, the limiting and tension detecting seat is coaxially connected at the lower end of the upper middle fixing column, and the limiting and tension detecting seat is internally and coaxially connected with the lower middle connecting column which can slightly move upwards and downwards, the lower extreme fixed connection of lower intermediate junction post is in the center of lower grip disc mechanism, just the center lower extreme fixed connection of lower grip disc mechanism is in pull down the post, the lower extreme of pull down the post is connected on the taut driver of linearity, the taut driver of linearity is fixed the lower extreme of centre gripping positioning mechanism, it is provided with a plurality of gripper jaw subassemblies to go up mutual upper and lower correspondence on grip disc mechanism and the lower grip disc mechanism, go up each on grip disc mechanism or lower grip disc mechanism gripper jaw subassembly circumference array arranges, and the upper and lower both ends of the work piece or the axle of treating processing are all fixed the centre gripping in on the gripper jaw subassembly, at each the gripper jaw subassembly carries out centre gripping after fixed and before beginning processing to the upper and lower both ends of work piece or axle, lower grip disc mechanism can be in the taut driver of linearity is down right under the drive of drive work piece or axle is taut and reach certain taut pretightning force and then add after reaching certain taut pretightning force And the limiting and tension detecting seat can detect the tensioning pretightening force and feed back and control the linear tensioning driver.
Further, as an optimization, each gripper jaw assembly is provided with an optical calibration assembly, and the optical calibration assembly can enable each gripper jaw assembly on the upper gripper disc mechanism and each gripper jaw assembly on the lower gripper disc mechanism to be in one-to-one correspondence with each other in an up-and-down coaxial line after clamping a workpiece or a shaft.
Further, as a preferred option, the optical calibration assembly at least comprises a laser calibration transmitter and a laser calibration receiver, the laser calibration transmitter is fixedly arranged on each gripper jaw assembly on the upper gripper disc mechanism, the mechanism calibration receiver is fixedly arranged on each gripper jaw assembly on the lower gripper disc mechanism, and the laser calibration receiver can sense a laser emission signal of the laser calibration transmitter.
Further, as an optimization, the clamping and positioning mechanism comprises a vertical positioning seat, an upper positioning clamp and a lower positioning clamp, the upper end and the lower end of the vertical positioning seat are respectively provided with the upper positioning clamp and the lower positioning clamp which are perpendicular to the vertical positioning seat, the upper positioning clamp and the lower positioning clamp form a U-shaped structure, the upper fixing column is fixed on the upper positioning clamp, and the linear tensioning driver is fixed on the lower positioning clamp.
Further, as an optimization, an upper limiting shoulder is fixedly arranged at the bottom of the upper fixing column, the lower end of the upper clamping disk mechanism is limited at the upper end of the upper limiting shoulder, a lower limiting shoulder is arranged at the upper end of the lower middle connecting column, and the upper end of the lower clamping disk mechanism is limited at the lower end of the lower limiting shoulder.
Preferably, the upper clamping disc mechanism and the lower clamping disc mechanism are of the same structure and respectively comprise a hollowed-out disc body and correction adjusting mechanisms, the clamping jaw assemblies are respectively connected to the respective correction adjusting mechanisms in a one-to-one correspondence manner, and the correction adjusting mechanisms are circumferentially arrayed on the circumference of the hollowed-out disc body.
Further, as preferred, correction adjustment mechanism includes vertical fixing base, vertical regulation slide and retaining member, vertical fixing base is fixed on the fretwork type disk body, but be provided with vertical direction slide adjusting on the vertical fixing base vertical regulation slide, just the rust cleaning direction is adjusted the slide with be provided with between the vertical fixing base the retaining member, the position control back of vertical regulation slide, the retaining member can realize right the locking of vertical regulation slide is fixed, gripper jaw subassembly sets up on the vertical regulation slide.
Further, preferably, the clamping jaw assembly comprises a first clamping jaw, a second clamping jaw, a tension spring, a clamping driving block, a clamping sliding block and a double-head clamping air cylinder, wherein the double-head clamping cylinder is fixed at the bottom of the vertical adjusting sliding plate, the hollow disc body is provided with a straight guide groove which is communicated up and down, the two output ends of the double-head clamping cylinder are both connected with the clamping slide block, the clamping slide block extends downwards out of the linear guide groove, and can slide along the linear guide groove, the clamping driving block is fixed on the clamping sliding block, the first clamping claw and the second clamping claw are respectively and integrally connected on the clamping driving blocks at the two sides, the tensioning spring is further arranged between the first clamping jaw and the second clamping jaw, and a workpiece to be machined or a shaft piece is clamped and positioned between the first clamping jaw and the second clamping jaw.
Further, as preferred, first gripper jaw with the second gripper jaw structure is the same, just first gripper jaw and second gripper jaw all include the main claw body, main clamping head, vice clamping column, first connecting rod and second connecting rod, wherein, the end portion of the main claw body articulates and is connected with main clamping head, the articulated connection in middle part of the main claw body is in first connecting rod middle part, first connecting rod middle part is fixed to be provided with vice clamping column, first connecting rod with the second connecting rod is articulated, the second connecting rod with main clamping head is articulated, the length of second connecting rod can stretch out and draw back regulation and the setting that can lock.
Further, as a preferred option, a pressure detection seat, an inner protection bushing and a pressure sensor are arranged inside the limit and tension detection seat, wherein a sealing fixed cover which is fixedly and detachably connected with the lower end of the limit and tension detection seat is arranged at the lower end of the limit and tension detection seat, the pressure detection seat is fixedly arranged at the lower end of the upper middle fixed column, the inner protection bushing which is sleeved at the upper end of the lower middle connecting column is fixedly arranged inside the limit and tension detection seat, the lower end face of the pressure detection seat abuts against the inner protection bushing, the pressure sensor is arranged between the inner protection bushing and the pressure detection seat, the pressure sensor can detect the pressure between the pressure detection seat and the inner protection bushing under the drive of the linear tensioning driver, and the hardness and the rigidity of the inner protection bushing are smaller than those of a workpiece or a shaft to be processed, so that the workpiece or the shaft is protected by the inner protection bushing and the workpiece or the shaft is prevented from being damaged by excessive tension.
The invention has the following advantages: compared with the same type of equipment, the novel clamp for machining the parts of the precision machine tool provided by the invention has the following advantages:
(1) according to the novel clamp for machining the precision machine tool parts, after the upper end and the lower end of a workpiece or a shaft are clamped and fixed by each clamping jaw assembly and before machining is started, the lower clamping disc mechanism can be used for tensioning the workpiece or the shaft downwards under the driving of the linear tensioning driver and machining after a certain tensioning pre-tightening force is achieved, the limiting and tension detecting seat can be used for detecting the tensioning pre-tightening force and controlling the linear tensioning driver in a feedback mode, the bending resistance of the workpiece or the shaft during machining can be effectively guaranteed through the setting of the tensioning pre-tightening force, meanwhile, the workpiece can be prevented from being damaged when the workpiece is tensioned, and the adaptability is improved.
(2) The optical calibration assembly can ensure the accuracy of a workpiece during clamping, ensure the clamping of the workpiece coaxially up and down and improve the processing precision of the workpiece.
Drawings
FIG. 1 is a schematic overall front view of the present invention;
FIG. 2 is a schematic structural view of an upper or lower clamping disk mechanism of the present invention;
FIG. 3 is a schematic structural view of the upper chuck mechanism of the present invention with only one alignment adjustment mechanism mounted thereon;
FIG. 4 is an enlarged partial schematic view of FIG. 3 in accordance with the present invention;
fig. 5 is a schematic structural view of the limiting and tension detecting base of the present invention.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 5, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a novel clamp for processing precision machine tool parts, which comprises a clamping and positioning mechanism, an upper clamping disk mechanism 4, a lower clamping disk mechanism 8, an upper fixed column 3, an upper middle fixed column 5, a limiting and tension detecting seat 7, a lower middle connecting column 13, a lower tension column 11 and a linear tensioning driver 10, wherein the upper fixed column which vertically extends downwards is fixedly arranged at the upper end of the clamping and positioning mechanism, the upper clamping disk mechanism is fixedly arranged at the bottom of the upper fixed column, the upper fixed column is positioned at the central position of the upper clamping disk mechanism, the lower end of the upper fixed column is connected with the upper middle fixed column which is coaxial with the upper fixed column, the lower end of the upper middle fixed column is coaxially connected with the limiting and tension detecting seat 7, and the novel clamp is characterized in that the lower middle connecting column which can slightly move up and down is coaxially connected in the limiting and tension detecting seat 7, the lower extreme fixed connection of lower intermediate junction post is in the center of lower grip disc mechanism, just the center lower extreme fixed connection of lower grip disc mechanism is in the lower pull column, the lower extreme of lower pull column is connected on the linear taut driver 10, linear taut driver 10 is fixed the lower extreme of centre gripping positioning mechanism, it is provided with a plurality of gripper jaw subassemblies 17 to go up mutual upper and lower correspondence on grip disc mechanism 4 and the lower grip disc mechanism 8, go up each on grip disc mechanism 4 or lower grip disc mechanism 8 gripper jaw subassembly circumference array arranges, and the upper and lower both ends of the work piece or the axle 6 of treating processing are all fixed the centre gripping on the gripper jaw subassembly, at each the gripper jaw subassembly carries out the centre gripping after fixing and before beginning processing to the upper and lower both ends of work piece or axle, lower grip disc mechanism 8 can be in under the drive of linear taut driver 10 is down to the work piece or axle take-up and reach certain And the linear tensioning driver 10 is subjected to feedback control by detecting the tensioning pretightening force through the limiting and tension detecting seat 7.
In this embodiment, each of the gripper jaw assemblies 17 is provided with an optical calibration assembly 15, and the optical calibration assembly enables the gripper jaw assemblies 17 on the upper gripper disc mechanism and the gripper jaw assemblies 17 on the lower gripper disc mechanism to be in one-to-one correspondence with each other in an up-and-down coaxial manner after clamping a workpiece or a shaft.
The optical calibration assembly 15 at least comprises a laser calibration transmitter 23 and a laser calibration receiver, the laser calibration transmitter 23 is fixedly arranged on each clamping jaw assembly 17 on the upper clamping disk mechanism, the mechanism calibration receiver is fixedly arranged on each clamping jaw assembly on the lower clamping disk mechanism, and the laser calibration receiver can sense a laser emission signal of the laser calibration transmitter 23.
The clamping and positioning mechanism comprises a vertical positioning seat 14, an upper positioning clamp 2 and a lower positioning clamp 12, the upper end and the lower end of the vertical positioning seat are respectively provided with the upper positioning clamp 2 and the lower positioning clamp 12 which are perpendicular to the vertical positioning seat, the vertical positioning seat 14, the upper positioning clamp 2 and the lower positioning clamp 12 form a U-shaped structure, the upper fixing column 3 is fixed on the upper positioning clamp, and the linear tensioning driver 10 is fixed on the lower positioning clamp.
An upper limiting shoulder 1 is fixedly arranged at the bottom of the upper fixing column, the lower end of the upper clamping disk mechanism is limited at the upper end of the upper limiting shoulder, a lower limiting shoulder 9 is arranged at the upper end of the lower middle connecting column, and the upper end of the lower clamping disk mechanism is limited at the lower end of the lower limiting shoulder.
The upper clamping disc mechanism 4 and the lower clamping disc mechanism 8 are identical in structure and respectively comprise a hollow disc body 16 and correction adjusting mechanisms, the clamping jaw assemblies 17 are respectively connected to the correction adjusting mechanisms in a one-to-one correspondence mode, and the correction adjusting mechanisms are circumferentially arrayed on the circumference of the hollow disc body 16.
The correcting and adjusting mechanism comprises a vertical fixing seat 18, a vertical adjusting sliding plate 19 and a locking part, wherein the vertical fixing seat is fixed on the hollowed-out type disc body, the vertical fixing seat is provided with a vertical guiding sliding adjusting vertical adjusting sliding plate, the derusting guiding adjusting sliding plate is provided with the locking part between the vertical fixing seat, after the vertical adjusting sliding plate is adjusted, the locking part can be locked and fixed on the vertical adjusting sliding plate, and the clamping jaw assembly is arranged on the vertical adjusting sliding plate.
The clamping jaw assembly comprises a first clamping jaw 20, a second clamping jaw 25, a tension spring, a clamping driving block 24, a clamping sliding block 26 and a double-head clamping air cylinder, wherein the double-head clamping cylinder is fixed at the bottom of the vertical adjusting sliding plate, the hollow disc body 16 is provided with a straight guide groove which is communicated up and down, the two output ends of the double-head clamping cylinder are both connected with the clamping slide block, the clamping slide block extends downwards out of the linear guide groove, and can slide along the linear guide groove, the clamping driving block is fixed on the clamping sliding block, the first clamping claw and the second clamping claw are respectively and integrally connected on the clamping driving blocks at the two sides, the tensioning spring is further arranged between the first clamping jaw and the second clamping jaw, and a workpiece to be machined or a shaft piece is clamped and positioned between the first clamping jaw and the second clamping jaw.
First gripper jaw with the second gripper jaw structure is the same, just first gripper jaw and second gripper jaw all include the main claw body, main clamping head 22, vice clamping column 23, first connecting rod and second connecting rod 21, wherein, the articulated end connection of the main claw body have main clamping head, the articulated connection in middle part of the main claw body is in first connecting rod middle part, first connecting rod middle part is fixed to be provided with vice clamping column, first connecting rod with the second connecting rod is articulated, the second connecting rod with main clamping head is articulated, the length of second connecting rod can stretch out and draw back regulation and the setting of lockable.
A pressure detection seat 27, an inner protection bush 29 and a pressure sensor 30 are arranged inside the limiting and tension detection seat 7, wherein a sealing fixed cover 28 which is fixedly and detachably connected with the lower end of the limiting and tension detection seat 7 is arranged at the lower end of the upper middle fixing column 5, the pressure detection seat is fixedly arranged at the lower end of the upper middle fixing column 5, the inner protection bush 29 which is sleeved at the upper end of the lower middle connecting column 13 is fixedly arranged inside the limiting and tension detection seat 7, the lower end face of the pressure detection seat abuts against the inner protection bush, the pressure sensor is arranged between the inner protection bush and the pressure detection seat, the pressure sensor can detect the pressure between the pressure detection seat 27 and the inner protection bush 29 under the driving of the linear tensioning driver 10, and the hardness and the rigidity of the inner protection bush are smaller than those of a workpiece or a shaft piece to be processed, so that the workpiece or the shaft is protected by the inner protection bushing and the workpiece or the shaft is prevented from being damaged by excessive tension.
According to the novel clamp for machining the precision machine tool parts, after the upper end and the lower end of a workpiece or a shaft are clamped and fixed by each clamping jaw assembly and before machining is started, the lower clamping disc mechanism can be used for tensioning the workpiece or the shaft downwards under the driving of the linear tensioning driver and machining after a certain tensioning pre-tightening force is achieved, the limiting and tension detecting seat can be used for detecting the tensioning pre-tightening force and controlling the linear tensioning driver in a feedback mode, the bending resistance of the workpiece or the shaft during machining can be effectively guaranteed through the setting of the tensioning pre-tightening force, meanwhile, the workpiece can be prevented from being damaged when the workpiece is tensioned, and the adaptability is improved. The optical calibration assembly can ensure the accuracy of a workpiece during clamping, ensure the clamping of the workpiece coaxially up and down and improve the processing precision of the workpiece.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described, and the standard parts used in the present invention are all available on the market, the special-shaped parts can be customized according to the description and the accompanying drawings, the specific connection mode of each part adopts the conventional means of bolt and rivet, welding and the like mature in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described herein.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A novel clamp for processing precision machine tool parts comprises a clamping and positioning mechanism, an upper clamping disc mechanism (4), a lower clamping disc mechanism (8), an upper fixing column (3), an upper middle fixing column (5), a limiting and tension detecting seat (7), a lower middle connecting column (13), a lower tension column (11) and a linear tensioning driver (10), wherein the upper end of the clamping and positioning mechanism is fixedly provided with the upper fixing column which vertically extends downwards, the bottom of the upper fixing column is fixedly provided with the upper clamping disc mechanism, the upper fixing column is positioned at the central position of the upper clamping disc mechanism, the lower end of the upper fixing column is connected with the upper middle fixing column which is coaxial with the upper fixing column, the lower end of the upper middle fixing column is coaxially connected with the limiting and tension detecting seat (7), and is characterized in that the lower middle connecting column which can slightly move upwards and downwards is coaxially connected in the limiting and tension detecting seat (7), the lower end of the lower middle connecting column is fixedly connected to the center of the lower clamping disk mechanism, the lower end of the center of the lower clamping disk mechanism is fixedly connected to the lower tension column, the lower end of the lower tension column is connected to the linear tensioning driver (10), the linear tensioning driver (10) is fixed to the lower end of the clamping and positioning mechanism, a plurality of clamping jaw assemblies (17) are arranged on the upper clamping disk mechanism (4) and the lower clamping disk mechanism (8) in a vertically corresponding mode, each clamping jaw assembly on the upper clamping disk mechanism (4) or the lower clamping disk mechanism (8) is arranged in a circumferential array mode, the upper end and the lower end of a workpiece or a shaft (6) to be machined are fixedly clamped on the clamping jaw assemblies, and after each clamping jaw assembly clamps and fixes the upper end and the lower end of the workpiece or the shaft and before machining is started, the lower clamping disc mechanism (8) can be driven by the linear tensioning driver (10) to downwardly tension the workpiece or the shaft piece and process the workpiece or the shaft piece after reaching a certain tensioning pre-tightening force, and the limiting and tension detecting seat (7) can detect the tensioning pre-tightening force and feed back the tensioning pre-tightening force to control the linear tensioning driver (10).
2. The novel jig for precision machine tool parts machining according to claim 1, characterized in that: each gripper jaw assembly (17) is provided with an optical calibration assembly (15), and the optical calibration assemblies can enable each gripper jaw assembly (17) on the upper gripper disc mechanism and each gripper jaw assembly (17) on the lower gripper disc mechanism to be in one-to-one correspondence with each other in an up-and-down coaxial manner after clamping a workpiece or a shaft.
3. The novel jig for precision machine tool parts machining according to claim 2, characterized in that: the optical calibration assembly (15) at least comprises a laser calibration transmitter (23) and a laser calibration receiver, each of the upper clamping disk mechanism is fixedly provided with the laser calibration transmitter (23) on the clamping jaw assembly (17), each of the lower clamping disk mechanism is fixedly provided with the mechanism calibration receiver on the clamping jaw assembly, and the laser calibration receiver can sense a laser emission signal of the laser calibration transmitter (23).
4. The novel jig for precision machine tool parts machining according to claim 2, characterized in that: the clamping and positioning mechanism comprises a vertical positioning seat (14), an upper positioning clamp (2) and a lower positioning clamp (12), the upper end and the lower end of the vertical positioning seat are respectively provided with the upper positioning clamp (2) and the lower positioning clamp (12) which are perpendicular to the vertical positioning seat, the vertical positioning seat (14), the upper positioning clamp (2) and the lower positioning clamp (12) form a U-shaped structure, an upper fixing column (3) is fixed on the upper positioning clamp, and a linear tensioning driver (10) is fixed on the lower positioning clamp.
5. The novel jig for precision machine tool parts machining according to claim 4, characterized in that: an upper limiting shoulder (1) is fixedly arranged at the bottom of the upper fixing column, the lower end of the upper clamping disc mechanism is limited at the upper end of the upper limiting shoulder, a lower limiting shoulder (9) is arranged at the upper end of the lower middle connecting column, and the upper end of the lower clamping disc mechanism is limited at the lower end of the lower limiting shoulder.
6. The novel jig for precision machine tool parts machining according to claim 5, characterized in that: go up grip disc mechanism (4), lower grip disc mechanism (8) structure is the same, all includes fretwork type disk body (16) and correction adjustment mechanism, each gripper jaw subassembly (17) equal one-to-one connect separately on the correction adjustment mechanism, just the arrangement of correction adjustment mechanism circumference array is in on the circumference of fretwork type disk body (16).
7. The novel jig for precision machine tool parts machining according to claim 6, characterized in that: the correcting and adjusting mechanism comprises a vertical fixing seat (18), a vertical adjusting sliding plate (19) and a locking piece, wherein the vertical fixing seat is fixed on the hollowed-out type disc body, the vertical fixing seat is provided with a vertical guiding sliding adjusting vertical adjusting sliding plate, the derusting guiding adjusting sliding plate is arranged between the vertical fixing seat and the locking piece, after the vertical adjusting sliding plate is adjusted, the locking piece can be locked and fixed on the vertical adjusting sliding plate, and the clamping claw assembly is arranged on the vertical adjusting sliding plate.
8. The novel jig for precision machine tool parts machining according to claim 7, characterized in that: the clamping jaw assembly comprises a first clamping jaw (20), a second clamping jaw (25), a tension spring, a clamping driving block (24), a clamping sliding block (26) and a double-head clamping cylinder, wherein the double-head clamping cylinder is fixed at the bottom of the vertical adjusting sliding plate, the hollow disc body (16) is provided with a straight guide groove which is communicated up and down, the two output ends of the double-head clamping cylinder are both connected with the clamping slide block, the clamping slide block extends downwards out of the linear guide groove, and can slide along the linear guide groove, the clamping driving block is fixed on the clamping sliding block, the first clamping claw and the second clamping claw are respectively and integrally connected on the clamping driving blocks at the two sides, the tensioning spring is further arranged between the first clamping jaw and the second clamping jaw, and a workpiece to be machined or a shaft piece is clamped and positioned between the first clamping jaw and the second clamping jaw.
9. The novel jig for precision machine tool parts machining according to claim 8, characterized in that: first gripper jaw with the second gripper jaw structure is the same, just first gripper jaw and second gripper jaw all include the main claw body, main clamping head (22), vice clamping column (23), first connecting rod and second connecting rod (21), wherein, the end portion of the main claw body articulates and is connected with main clamping head, the middle part of the main claw body articulates and is connected first connecting rod middle part, first connecting rod middle part is fixed to be provided with vice clamping column, first connecting rod with the second connecting rod is articulated, the second connecting rod with main clamping head is articulated, the length of second connecting rod can stretch out and draw back regulation and the setting that can lock.
10. The novel jig for precision machine tool parts machining according to claim 4, characterized in that: a pressure detection seat (27), an inner protection bushing (29) and a pressure sensor (30) are arranged inside the limiting and tension detection seat (7), wherein a sealing fixed cover (28) which is fixedly and detachably connected with the lower end of the limiting and tension detection seat (7) is arranged at the lower end of the upper middle fixed column (5), the pressure detection seat is fixedly arranged at the lower end of the upper middle fixed column (5), the inner protection bushing (29) which is sleeved at the upper end of the lower middle connecting column (13) is fixedly arranged inside the limiting and tension detection seat (7), the lower end face of the pressure detection seat is abutted against the inner protection bushing, the pressure sensor is arranged between the inner protection bushing and the pressure detection seat, and can detect the pressure between the inner protection bushing (29) and the pressure detection seat (27) driven by the linear tensioning driver (10), the hardness and the rigidity of the inner protection bushing are smaller than those of the workpiece or the shaft to be machined, so that the workpiece or the shaft is protected through the inner protection bushing, and the workpiece or the shaft is prevented from being damaged due to excessive tension.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011256037.2A CN112296714B (en) | 2020-11-11 | 2020-11-11 | Novel clamp for machining parts of precision machine tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011256037.2A CN112296714B (en) | 2020-11-11 | 2020-11-11 | Novel clamp for machining parts of precision machine tool |
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| CN112296714A true CN112296714A (en) | 2021-02-02 |
| CN112296714B CN112296714B (en) | 2021-09-07 |
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