CN117086348B - Lathe fixture - Google Patents

Lathe fixture Download PDF

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Publication number
CN117086348B
CN117086348B CN202311331064.5A CN202311331064A CN117086348B CN 117086348 B CN117086348 B CN 117086348B CN 202311331064 A CN202311331064 A CN 202311331064A CN 117086348 B CN117086348 B CN 117086348B
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CN
China
Prior art keywords
clamping
positioning
chuck
workpiece
main
Prior art date
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Active
Application number
CN202311331064.5A
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Chinese (zh)
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CN117086348A (en
Inventor
孙雪娜
李兆维
王帅
程中文
王一迪
王雷
那景阳
崔鹏
耿彦波
肖光临
王建颖
徐宝军
杨淼
吕广超
孙绍峰
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General Technology Group Shenyang Machine Tool Co Ltd
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General Technology Group Shenyang Machine Tool Co Ltd
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Application filed by General Technology Group Shenyang Machine Tool Co Ltd filed Critical General Technology Group Shenyang Machine Tool Co Ltd
Priority to CN202311331064.5A priority Critical patent/CN117086348B/en
Publication of CN117086348A publication Critical patent/CN117086348A/en
Application granted granted Critical
Publication of CN117086348B publication Critical patent/CN117086348B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/10Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/103Retention by pivotal elements, e.g. catches, pawls

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

Abstract

The invention provides a lathe fixture, which relates to the technical field of fixtures, and comprises: a chuck; at least four motion modules are arranged on the chuck; the driving assembly is arranged on the chuck, and at least two main clamping assemblies are respectively connected to at least two movement modules; at least two sub-clamping assemblies, which are respectively connected with the other at least two moving modules; the distance between the clamping parts of the at least two main clamping assemblies and the chuck is larger than the distance between the clamping parts of the at least two auxiliary clamping assemblies and the chuck, when a workpiece is clamped, one end part of the workpiece is clamped through the clamping parts of the at least two main clamping assemblies, and the other end part of the workpiece is clamped through the clamping parts of the at least two auxiliary clamping assemblies.

Description

Lathe fixture
Technical Field
The invention belongs to the field of fixtures, and particularly relates to a lathe fixture.
Background
The clamp of the four-jaw chuck of the common lathe generally adopts four jaws to clamp simultaneously, when the four jaws clamp the surface of a workpiece, sometimes only two jaws clamp, the other two jaws can clamp the workpiece, and simultaneously, when the square nut is processed to be a longer workpiece, the upper end face can only be clamped, the lower end is generally in a suspended state, serious vibration patterns can be generated in processing, the requirements of drawing cannot be met, the processing capability is limited, the adaptability is poor, the precision is low, and the special production requirements cannot be met.
Disclosure of Invention
The invention aims to provide a lathe clamp aiming at the defects of the prior art, so as to solve the problems that the clamp of the prior lathe four-jaw chuck provided in the prior art generally adopts four jaws to clamp simultaneously, sometimes only two jaws can clamp simultaneously, the other two jaws can not clamp a workpiece, and meanwhile, when a square nut which is a longer workpiece is processed, only the upper end face can be clamped, the lower end is generally in a suspended state, and serious vibration patterns can be generated in processing.
In order to achieve the above object, the present invention provides a lathe jig comprising:
the chuck is provided with at least four movement modules;
the driving assembly is arranged on the chuck and is used for driving at least two of the motion modules to move in a direction approaching or separating from each other and driving the other at least two motion modules to move in a direction approaching or separating from each other;
at least two main clamping assemblies, wherein the at least two main clamping assemblies are distributed along the circumferential direction of the chuck and are respectively connected to at least two of the motion modules;
at least two auxiliary clamping assemblies, wherein at least two auxiliary clamping assemblies are distributed along the circumferential direction of the chuck and are respectively connected to the other at least two moving modules;
the distance between the clamping parts of at least two main clamping assemblies and the chuck is larger than the distance between the clamping parts of at least two auxiliary clamping assemblies and the chuck, the clamping parts of at least two main clamping assemblies are used for clamping one end of a workpiece, and the clamping parts of at least two auxiliary clamping assemblies are used for clamping the other end of the workpiece.
Preferably, the main clamping assembly comprises:
the main clamping positioning block is connected to the corresponding motion module;
one end of the positioning column is connected to the main clamping positioning block;
the main clamping head is detachably connected to the other end of the positioning column, the main clamping head is a clamping part of the main clamping assembly, an inward concave arc clamping surface is arranged at one end of the main clamping head, grooves are respectively formed in two sides of the inner portion of the clamping surface, tooth-shaped blocks are arranged in the grooves, tooth tips of the tooth-shaped blocks are arranged outside the grooves, and an adjusting pad is arranged inside the grooves and between the tooth-shaped blocks and the inner end surface of the grooves.
Preferably, the sub-clamping assembly includes:
the auxiliary clamping positioning block is connected to the corresponding motion module;
the elastic device is connected to the auxiliary clamping positioning block, and the elastic end of the elastic device faces the workpiece;
the auxiliary clamping head is detachably connected to the elastic end of the elastic device, the auxiliary clamping head is a clamping part of the auxiliary clamping assembly, and one end, facing the workpiece, of the auxiliary clamping head is provided with an inwards concave V-shaped clamping surface.
Preferably, the elastic means comprises:
the main body is connected to the auxiliary clamping positioning block, a slideway is arranged in the main body, and a mounting port and a lubricating port which are communicated with the slideway are formed in the side wall of the main body;
the rear cover is connected to one end of the main body, which is far away from the workpiece;
one end of the shaft is slidably connected in the slideway, the other end of the shaft penetrates through one end of the main body, the auxiliary clamping head is detachably connected to one end of the shaft, and a sliding groove is formed in the side wall of the shaft;
the belleville spring is arranged in the slideway and is arranged between one end of the shaft and the rear cover;
the positioning key is connected in the mounting port, and one end of the positioning key is arranged in the chute;
and the pressure oil filling cup is connected in the lubrication port.
Preferably, the elastic device further comprises:
one end of the screw rod is arranged in the slideway, one end of the shaft is provided with a threaded hole, one end of the screw rod is connected in the threaded hole in a threaded manner, the other end of the screw rod penetrates through the rear cover, and the side wall of the screw rod is provided with an annular boss;
the sleeve plate is arranged in the slideway, between the annular boss and the rear cover, and the belleville spring is sleeved on the screw rod and between the annular boss and the sleeve plate;
at least one screw, be equipped with at least one screw hole on the back lid, at least one screw respectively threaded connection at least one screw hole, at least one screw's one end is held up and is leaned on the cover plate.
Preferably, the lathe fixture further comprises a limit ring, wherein the limit ring can be sleeved on the shaft and arranged between the auxiliary clamping head and one end of the main body, and the limit ring is used for limiting the auxiliary clamping head to approach to one end of the main body.
Preferably, the lathe fixture further comprises at least two positioning components, at least two positioning components are distributed along the circumferential direction of the chuck and connected to the chuck, the distance between the positioning parts of the at least two positioning components and the chuck is equal to the distance between the clamping parts of the at least two main clamping components and the chuck, the positioning parts of the at least two positioning components are used for positioning one end of a workpiece, and the positioning components comprise:
the door body, one end of the said door body is connected to said chuck;
the positioning head is detachably connected to the other end of the door body, the positioning head is a positioning part of the positioning assembly, one end of the positioning head, which faces the workpiece, is provided with an inward concave arc-shaped positioning surface, and the two sides of the inner part of the positioning surface are provided with insections.
Preferably, the number of the moving modules on the chuck is four, the number of the main clamping assemblies is two, the two main clamping assemblies are connected to the two moving modules which are opposite to each other, the number of the auxiliary clamping assemblies is two, the two auxiliary clamping assemblies are connected to the other two moving modules which are opposite to each other, the number of the positioning assemblies is two, the door body is arched, and the inner sides of the arched door bodies of the two positioning assemblies are respectively used for being inserted into the two auxiliary clamping assemblies.
Preferably, the chuck is of the type TPT-C315.
Preferably, the driving assembly comprises a double-piston oil cylinder, and double output ends of the double-piston oil cylinder are respectively connected to the transmission mechanism of the chuck.
The invention provides a lathe fixture, which has the beneficial effects that:
the clamping parts of the at least two main clamping components are respectively connected to at least two moving modules along the circumferential direction of the chuck, the at least two auxiliary clamping components are respectively connected to the other at least two moving modules along the circumferential direction of the chuck, the distance between the clamping parts of the at least two main clamping components and the chuck is larger than the distance between the clamping parts of the at least two auxiliary clamping components and the chuck, when a workpiece is clamped, one end part of the workpiece is clamped by the clamping parts of the at least two main clamping components, and the other end part of the workpiece is clamped by the clamping parts of the at least two auxiliary clamping components.
The cutter bar of the processing assembly can be clamped on the cutter holder device and can be used for adjusting the position of a cutter relative to a workpiece, and further, the workpiece is processed.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular descriptions of exemplary embodiments of the invention as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the invention.
Fig. 1 shows a schematic perspective view of a lathe fixture according to an embodiment of the present invention.
Fig. 2 shows a schematic partial perspective view of a lathe fixture according to an embodiment of the present invention.
Fig. 3 shows a schematic top view of a lathe fixture according to an embodiment of the invention.
Fig. 4 shows a schematic view of the structure in the direction A-A in fig. 3.
Fig. 5 shows an enlarged schematic view of the structure at B in fig. 4.
Reference numerals illustrate:
1. a chuck; 2. a motion module; 3. a drive assembly; 4. a main clamping assembly; 41. a main clamping positioning block; 42. positioning columns; 43. a main clamping head; 44. a tooth-shaped block; 5. a sub-clamping assembly; 51. a sub-clamping positioning block; 52. an elastic device; 521. a main body; 522. a slideway; 523. a rear cover; 524. a shaft; 525. a chute; 526. a belleville spring; 527. a positioning key; 528. a pressure oil filling cup; 529. a screw; 5210. a boss; 5211. a sleeve plate; 5212. a screw; 53. a sub-clamping head; 6. a workpiece; 7. a positioning assembly; 71. a door body; 72. positioning head.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in fig. 1 to 5, the present invention provides a lathe jig comprising:
a chuck 1; at least four motion modules 2 are arranged on the chuck 1;
the driving assembly 3 is arranged on the chuck 1, and the driving assembly 3 is used for driving at least two of the moving modules 2 to move towards or away from each other and driving the other at least two moving modules 2 to move towards or away from each other;
at least two main clamping assemblies 4, wherein the at least two main clamping assemblies 4 are distributed along the circumferential direction of the chuck 1 and are respectively connected to at least two moving modules 2;
at least two sub-clamping assemblies 5, wherein the at least two sub-clamping assemblies 5 are distributed along the circumferential direction of the chuck 1 and are respectively connected to the other at least two moving modules 2;
the distance between the clamping parts of the at least two main clamping assemblies 4 and the chuck 1 is larger than the distance between the clamping parts of the at least two auxiliary clamping assemblies 5 and the chuck 1, the clamping parts of the at least two main clamping assemblies 4 are used for clamping one end of a workpiece 6, and the clamping parts of the at least two auxiliary clamping assemblies 5 are used for clamping the other end of the workpiece 6.
In particular, in order to solve the problems that the existing fixture of the four-jaw chuck of the lathe generally adopts four jaws to clamp simultaneously, sometimes only two jaws clamp, the condition that the workpiece cannot be clamped by the other two jaws can occur, meanwhile, when the square nut is processed, the upper end face can only be clamped, the lower end is generally in a suspended state, and serious vibration patterns can occur in processing.
Preferably, the main clamping assembly 4 comprises:
the main clamping positioning block 41 is connected to the corresponding motion module 2;
the positioning column 42, one end of the positioning column 42 is connected to the main clamping positioning block 41;
the main clamping head 43, the main clamping head 43 can be dismantled and connect on the other end of reference column 42, the main clamping head 43 is the clamping part of main clamping assembly 4, the one end of main clamping head 43 towards work piece 6 is equipped with the arc clamping face of indent, the inside both sides of the arc clamping face of indent are equipped with the recess respectively, the inside of recess is equipped with tooth profile block 44, the tooth point setting of tooth profile block 44 is in the outside of recess, the inside of recess and be located and be equipped with the adjustment pad between the interior terminal surface of tooth profile block 44 and recess.
Specifically, when clamping one end portion of the workpiece 6, the driving component 3 may drive at least two of the moving modules 2, where the main clamping positioning block 41, the positioning column 42 and the main clamping head 43 on the moving module 2 will move together, and the at least two main clamping components 4 clamp one end of the workpiece 6, and for a square nut, the concave arc clamping surfaces of the at least two main clamping components 4 may clamp the diagonal surface of one end of the workpiece 6.
The main clamping head 43 is provided with the tooth-shaped block 44, when in clamping, the tooth tips of the tooth-shaped block 44 can penetrate into the blank surface of the workpiece 6 to firmly clamp the workpiece 6, and as the casting surface of each batch of blanks cannot be completely vertical, an adjusting pad is arranged inside the groove and between the tooth-shaped block 44 and the inner end surface of the groove, and the tooth-shaped block 44 is provided with the same indentation through the thickness alignment of the adjusting pad, so that the pressing force is the same, and the virtual clamping is avoided.
The main clamping head 43 is detachably connected to the other end of the positioning column 42, and the main clamping head 43 can be replaced by different main clamping heads 43 according to the size of the workpiece 6 so as to adapt to different workpieces 6.
Preferably, the sub-clamping assembly 5 includes:
a sub-clamping positioning block 51, the sub-clamping positioning block 51 being connected to the corresponding moving module 2;
an elastic device 52, the elastic device 52 is connected to the sub-clamping positioning block 51, and the elastic end of the elastic device 52 faces the workpiece 6;
the sub-clamping head 53, the sub-clamping head 53 is detachably connected to the elastic end of the elastic means 52, the sub-clamping head 53 is a clamping portion of the sub-clamping assembly 5, and an end of the sub-clamping head 53 facing the workpiece 6 is provided with a concave V-shaped clamping surface.
Specifically, when clamping the other end portion of the workpiece 6, the driving assembly 3 may drive the remaining at least two moving modules 2, and the sub-clamping positioning block 51, the elastic device 52 and the sub-clamping head 53 on the moving module 2 will move together, and the at least two sub-clamping assemblies 5 clamp the other end of the workpiece, and for the square nut, the concave V-shaped clamping surfaces of the at least two sub-clamping assemblies 5 may clamp the cylindrical surface of the other end of the workpiece 6.
The elastic device 52 can realize flexible clamping of the sub-clamping head 53, and when at least two sub-clamping assemblies 5 start to work, the elastic device 52 is pressed to generate pressure to act on the other end part of the workpiece 6, so as to realize auxiliary clamping of the workpiece 6.
Since the sub-clamping head 53 is detachably attached to the elastic end of the elastic means 52, the sub-clamping head 53 can be replaced with a different sub-clamping head 53 according to the size of the workpiece 6 to accommodate a different workpiece 6.
As shown in fig. 5, preferably, the elastic means 52 comprises:
a main body 521, the main body 521 being connected to the sub-clamping positioning block 51, a slide 522 being provided in the main body 521, a mounting port and a lubrication port being provided on a side wall of the main body 521, the mounting port and the lubrication port being communicated with the slide 522;
a rear cover 523, the rear cover 523 being attached to an end of the main body 521 remote from the work 6;
one end of the shaft 524 is slidably connected in the slideway 522, the other end of the shaft 524 penetrates through one end of the main body 521, the auxiliary clamping head 53 is detachably connected to one end of the shaft 524, and a sliding groove 525 is formed in the side wall of the shaft 524;
a belleville spring 526, the belleville spring 526 being disposed within the slide 522 and between one end of the shaft 524 and the rear cover 523;
the positioning key 527, the positioning key 527 is connected in the mounting port, one end of the positioning key 527 is arranged in the chute 525;
a squeeze cup 528, the squeeze cup 528 being connected within the lubrication port.
Specifically, when clamping the other end portion of the workpiece 6, the shaft 524 will slide in the direction of the rear cover 523, the belleville spring 526 will be pressed to generate pressure, and act on the other end portion of the workpiece 6 to realize auxiliary clamping of the workpiece, the positioning key 527 is used for limiting rotation of the shaft 524, so that the shaft 524 can only move linearly, and the oil injection cup 528 is used for injecting lubricating oil for lubricating the shaft 524.
Preferably, the elastic means further comprises:
screw rod 529, one end of screw rod 529 is arranged in slide way 522, one end of shaft 524 is provided with a threaded hole, one end of screw rod 529 is connected in the threaded hole in a threaded mode, the other end of screw rod 529 penetrates through rear cover 523, and the side wall of screw rod 529 is provided with annular boss 5210;
a sleeve plate 5211, wherein the sleeve plate 5211 is arranged in the slide way 522 and between the annular boss 5210 and the rear cover 523, and the belleville spring 526 is sleeved on the screw rod 529 and is arranged between the annular boss 5210 and the sleeve plate 5211;
at least one screw 5212 is provided with at least one threaded hole on the rear cover 523, the at least one screw 5212 is respectively in threaded connection with the at least one threaded hole, and one end of the at least one screw 5212 abuts against the sleeve plate 5211.
Specifically, at least one screw 5212 is used to adjust the compression depth of the belleville spring 526, thereby controlling the compression force of the belleville spring 526.
Preferably, the lathe fixture further includes a stopper ring that can be sleeved on the shaft 524 and can be disposed between the sub-clamping head 53 and one end of the main body 521, the stopper ring being for restricting the sub-clamping head 53 from approaching the one end of the main body 521.
Specifically, one end of the main body 521 is the end of the main body 521 facing the workpiece 6, and a stopper ring is fitted between the sub-clamping head 53 and one end of the main body 521, so that the flexible clamping of the sub-clamping head 53 can be changed to the rigid mechanism clamping for using different clamping.
Preferably, the lathe fixture further comprises at least two positioning components 7, the at least two positioning components 7 are distributed along the circumferential direction of the chuck 1 and are connected to the chuck 1, the distance between the positioning parts of the at least two positioning components 7 and the chuck 1 is equal to the distance between the clamping parts of the at least two main clamping components 4 and the chuck 1, the positioning parts of the at least two positioning components 7 are used for positioning one end of the workpiece 6, and the positioning components 7 comprise:
a door body 71, one end of the door body 71 is connected to the chuck 1;
the positioning head 72, the positioning head 72 can be dismantled and be connected at the other end of the door body 71, and the positioning head 72 is the location portion of locating component 7, and the one end of positioning head 72 towards work piece 6 is equipped with the arc locating surface of indent, and the inside both sides of the arc locating surface of indent are equipped with the insection.
Specifically, the two positioning heads 72 can realize axial positioning of the workpiece 6, for square nuts, the concave arc-shaped positioning surfaces of the two positioning heads 72 can roughly position the diagonal surface of the workpiece 6, and as the positioning heads 72 are detachably connected to the other end of the door body 71, further, according to different sizes of the workpiece 6, different positioning heads 72 can be replaced, a gap of 0.25mm is reserved between the concave arc-shaped positioning surfaces and the positioning surfaces of the workpiece 6, so that the workpiece 6 is conveniently put in or taken out, and overstocked by the main clamping assembly 4 is avoided.
Preferably, the number of the moving modules 2 on the chuck 1 is four, the number of the main clamping assemblies 4 is two, the two main clamping assemblies 4 are connected to the two opposite moving modules 2, the number of the auxiliary clamping assemblies 5 is two, the two auxiliary clamping assemblies 5 are connected to the other two opposite moving modules 2, the number of the positioning assemblies 7 is two, the door body 71 is arched, and the inner sides of the arched door bodies 71 of the two positioning assemblies 7 are respectively used for being inserted into the two auxiliary clamping assemblies 5.
Specifically, the optimal layout of the clamp is realized, and the design of a compact structure and an integrated type is realized.
Preferably, chuck 1 is model number TPT-C315.
Specifically, the chuck 1 selects a 2+2 independent movement module 2 of the TPT-C315, a key slot type is adopted, the stroke of the movement module 2 of the chuck 1 is single-sided by 5mm, the main clamping positioning block 41 and the auxiliary clamping positioning block 51 are respectively installed in the key slot of the chuck 1, the door body 71 is installed through a threaded hole of the chuck 1, and the positioning is performed by utilizing an end face slot of the chuck 1.
Preferably, the driving assembly 3 comprises a double-piston oil cylinder, and double output ends of the double-piston oil cylinder are respectively connected to the transmission mechanism of the chuck 1.
Specifically, the inner pull rod and the outer pull rod of the double-piston oil cylinder are connected to the transmission mechanism of the chuck 1.
In summary, when the lathe fixture of the invention is implemented, the workpiece 6 can be axially positioned by the two positioning heads 72, for square nuts, the concave arc-shaped positioning surfaces of the two positioning heads 72 can roughly position the diagonal surfaces of the workpiece 6, when one end part of the workpiece 6 is clamped, the driving component 3 can drive at least two of the moving modules 2, the main clamping positioning blocks 41, the positioning columns 42 and the main clamping heads 43 on the moving modules 2 move together, the at least two main clamping components 4 clamp one end of the workpiece 6, for square nuts, the concave arc-shaped clamping surfaces of the at least two main clamping components 4 can clamp the diagonal surfaces of one end of the workpiece 6, when the other end part of the workpiece 6 is clamped, the driving component 3 can drive the other at least two moving modules 2, the auxiliary clamping positioning blocks 51, the elastic devices 52 and the auxiliary clamping heads 53 on the moving modules 2 move together, the other end of the workpiece 6 is clamped by at least two auxiliary clamping assemblies 5, for the square nut type workpiece 6, the concave V-shaped clamping surface of the at least two auxiliary clamping assemblies 5 can clamp the cylindrical surface of the other end of the workpiece 6, the elastic device 52 can realize flexible clamping of the auxiliary clamping head 53, when the at least two auxiliary clamping assemblies 5 start working, the elastic device 52 is extruded to generate pressure to act on the other end part of the workpiece 6, the auxiliary clamping of the workpiece is realized, the clamping condition of the workpiece is not generated due to the independent clamping of the two end parts of the workpiece 6, the suspension condition of the workpiece 6 is not generated, further, the vibration lines of the workpiece 6 are not easy to generate during the processing, the main clamping head 43, the auxiliary clamping head 53 and the positioning head 72 can be independently replaced, the workpieces 6 with different shapes and sizes can be processed without complete replacement, is very convenient.
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.

Claims (5)

1. A lathe fixture, characterized in that the fixture comprises:
the chuck is provided with at least four movement modules;
the driving assembly is arranged on the chuck and is used for driving at least two of the motion modules to move in a direction approaching or separating from each other and driving the other at least two motion modules to move in a direction approaching or separating from each other;
at least two main clamping assemblies, wherein the at least two main clamping assemblies are distributed along the circumferential direction of the chuck and are respectively connected to at least two of the motion modules;
at least two auxiliary clamping assemblies, wherein at least two auxiliary clamping assemblies are distributed along the circumferential direction of the chuck and are respectively connected to the other at least two moving modules;
the distance between the clamping parts of at least two main clamping assemblies and the chuck is larger than the distance between the clamping parts of at least two auxiliary clamping assemblies and the chuck, the clamping parts of at least two main clamping assemblies are used for clamping one end of a workpiece, and the clamping parts of at least two auxiliary clamping assemblies are used for clamping the other end of the workpiece;
the main clamping assembly includes:
the main clamping positioning block is connected to the corresponding motion module;
one end of the positioning column is connected to the main clamping positioning block;
the main clamping head is detachably connected to the other end of the positioning column, the main clamping head is a clamping part of the main clamping assembly, one end of the main clamping head, which faces towards the workpiece, is provided with an inward concave arc clamping surface, two sides of the inner part of the inward concave arc clamping surface are respectively provided with a groove, the inner part of each groove is provided with a tooth-shaped block, tooth tips of the tooth-shaped blocks are arranged outside the grooves, and an adjusting pad is arranged inside each groove and between the tooth-shaped block and the inner end surface of each groove;
the sub-clamping assembly includes:
the auxiliary clamping positioning block is connected to the corresponding motion module;
the elastic device is connected to the auxiliary clamping positioning block, and the elastic end of the elastic device faces the workpiece;
a sub-clamping head detachably connected to an elastic end of the elastic device, the sub-clamping head being a clamping portion of the sub-clamping assembly, one end of the sub-clamping head facing the workpiece being provided with an inwardly concave V-shaped clamping surface;
the elastic means includes:
the main body is connected to the auxiliary clamping positioning block, a slideway is arranged in the main body, and a mounting port and a lubricating port which are communicated with the slideway are formed in the side wall of the main body;
the rear cover is connected to one end of the main body, which is far away from the workpiece;
one end of the shaft is slidably connected in the slideway, the other end of the shaft penetrates through one end of the main body, the auxiliary clamping head is detachably connected to one end of the shaft, and a sliding groove is formed in the side wall of the shaft;
the belleville spring is arranged in the slideway and is arranged between one end of the shaft and the rear cover;
the positioning key is connected in the mounting port, and one end of the positioning key is arranged in the chute;
the pressure oil filling cup is connected in the lubricating port;
one end of the screw rod is arranged in the slideway, one end of the shaft is provided with a threaded hole, one end of the screw rod is connected in the threaded hole in a threaded manner, the other end of the screw rod penetrates through the rear cover, and the side wall of the screw rod is provided with an annular boss;
the sleeve plate is arranged in the slideway, between the annular boss and the rear cover, and the belleville spring is sleeved on the screw rod and between the annular boss and the sleeve plate;
at least one screw, at least one screw hole is arranged on the rear cover, at least one screw is respectively connected in at least one screw hole in a threaded mode, and one end of at least one screw abuts against the sleeve plate;
the lathe fixture further comprises at least two positioning components, at least two positioning components are distributed along the circumferential direction of the chuck and are connected to the chuck, the distance between the positioning parts of the at least two positioning components and the chuck is equal to the distance between the clamping parts of the at least two main clamping components and the chuck, the positioning parts of the at least two positioning components are used for positioning one end of a workpiece, and the positioning components comprise:
the door body, one end of the said door body is connected to said chuck;
the positioning head is detachably connected to the other end of the door body, the positioning head is a positioning part of the positioning assembly, one end of the positioning head, which faces the workpiece, is provided with an inward concave arc-shaped positioning surface, and the two sides of the inner part of the positioning surface are provided with insections.
2. The lathe fixture of claim 1, further comprising a stop collar capable of being sleeved on the shaft and capable of being disposed between the sub-clamping head and one end of the main body, the stop collar being adapted to limit the sub-clamping head from approaching the one end of the main body.
3. The lathe fixture of claim 1, wherein the number of moving modules on the chuck is four, the number of the main clamping assemblies is two, the two main clamping assemblies are connected to two opposite moving modules, the number of the auxiliary clamping assemblies is two, the two auxiliary clamping assemblies are connected to the other two opposite moving modules, the number of the positioning assemblies is two, the door body is arched, and the inner sides of the arched door bodies of the two positioning assemblies are respectively used for being inserted into the two auxiliary clamping assemblies.
4. A lathe fixture according to claim 1, wherein said chuck is of the type TPT-C315.
5. The lathe fixture of claim 4 wherein said drive assembly comprises a dual piston cylinder having dual outputs connected to the chuck drive mechanism, respectively.
CN202311331064.5A 2023-10-16 2023-10-16 Lathe fixture Active CN117086348B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311331064.5A CN117086348B (en) 2023-10-16 2023-10-16 Lathe fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311331064.5A CN117086348B (en) 2023-10-16 2023-10-16 Lathe fixture

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Publication Number Publication Date
CN117086348A CN117086348A (en) 2023-11-21
CN117086348B true CN117086348B (en) 2024-03-12

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Citations (7)

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Publication number Priority date Publication date Assignee Title
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CN113092250A (en) * 2021-04-01 2021-07-09 谭复元 Building materials compressive resistance contrast detection device convenient to quick fixation
CN115415566A (en) * 2022-09-26 2022-12-02 常州市科普特佳顺机床附件有限公司 Floating bidirectional clamping four-jaw chuck

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201361718Y (en) * 2009-03-13 2009-12-16 佳贺精机股份有限公司 Double-acting type four-claw clamp device
CN208391558U (en) * 2018-07-11 2019-01-18 新昌县雅智电子科技有限公司 Positioning fixture is used in a kind of machining
CN209363640U (en) * 2018-11-20 2019-09-10 陕西海力特精密机械有限公司 The chuck of anti-workpiece deformation
CN209614308U (en) * 2019-01-31 2019-11-12 佛山市宏石激光技术有限公司 A kind of double acting Self-centering device of chuck
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CN113092250A (en) * 2021-04-01 2021-07-09 谭复元 Building materials compressive resistance contrast detection device convenient to quick fixation
CN115415566A (en) * 2022-09-26 2022-12-02 常州市科普特佳顺机床附件有限公司 Floating bidirectional clamping four-jaw chuck

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