CN215144817U - Automatic lathe machining clamp for thin-wall part - Google Patents

Automatic lathe machining clamp for thin-wall part Download PDF

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Publication number
CN215144817U
CN215144817U CN202120116719.7U CN202120116719U CN215144817U CN 215144817 U CN215144817 U CN 215144817U CN 202120116719 U CN202120116719 U CN 202120116719U CN 215144817 U CN215144817 U CN 215144817U
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China
Prior art keywords
pull rod
thin
rises
cover
hole
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CN202120116719.7U
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Chinese (zh)
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韩胜利
柯尊锋
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Suzhou Maxsin Machine Tool Co ltd
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Suzhou Maxsin Machine Tool Co ltd
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Abstract

The utility model relates to an automatic lathe processing anchor clamps of thin wall spare, including the anchor clamps body, the flange, the cover rises, the positioning disk, work piece and driving piece, flange joint is on lathe main shaft interface, the anchor clamps body is fixed on the flange, anchor clamps body front end is provided with the positioning disk of location work piece lateral wall, the central point department of putting of positioning disk is equipped with the locating hole that the cover rises in the installation, set up the through-hole of terminal surface around a plurality of running through on the positioning disk, be provided with the auxiliary stay subassembly in the through-hole, work piece central point department of putting is equipped with the step hole, the cover front end that rises sets up downtheholely at the step, the inside wall of work piece is equipped with the profile modeling thimble outward, the profile modeling thimble is connected on the ejector pin, the one end of ejector pin is installed on the lathe tailstock, its other end and pull rod threaded connection, the pull rod passes the cover that rises and is connected with the driving piece, the pull rod tip cooperatees with the cover that rises. The utility model can thoroughly and effectively solve the deformation problem of the processed workpiece; the time and the process of processing the element by the fixture are greatly reduced, and the production efficiency and the product percent of pass are improved.

Description

Automatic lathe machining clamp for thin-wall part
Technical Field
The utility model belongs to the technical field of thin wall spare processing technique and specifically relates to an automatic lathe machining anchor clamps of thin wall spare.
Background
After the thin-wall part shown in the figure 1 is machined, the inner diameter and the outer diameter of the thin-wall part are deformed greatly and are unstable, the thin-wall part is difficult to control in a drawing size range, and the yield of batch production is low. Moreover, the thin-wall part needs to be processed by adopting a plurality of working procedures, and the clamping accumulated error is large, the processing time is long and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the automatic lathe machining clamp for the thin-wall part overcomes the defects in the prior art, the problem of workpiece deformation is thoroughly and effectively solved, and the machining time and the machining procedures are greatly reduced.
The utility model provides a technical scheme that its technical problem adopted is: an automatic lathe machining clamp for thin-wall parts comprises a clamp body, a flange, an expansion sleeve, a positioning disc, a workpiece and a driving part, the flange is connected with a machine tool spindle interface, the clamp body is fixed on the flange, the front end of the clamp body is provided with a positioning disc for positioning the outer side wall of a workpiece, the central position of the positioning disk is provided with a positioning hole for installing the expansion sleeve, the positioning disk is provided with a plurality of through holes penetrating through the front end surface and the rear end surface, an auxiliary supporting component is arranged in the through hole, a step hole is arranged at the center of the workpiece, the front end of the expansion sleeve is arranged in the step hole, a profiling thimble is arranged outside the inner side wall of the workpiece and connected to a mandril, one end of the mandril is arranged on a tailstock of the machine tool, the other end of the tension rod is in threaded connection with a tension rod, the tension rod penetrates through the expansion sleeve to be connected with the driving part, and the end part of the tension rod is matched with the expansion sleeve.
The driving piece broach pull rod enables the pull rod sleeve to strain the expansion sleeve, the workpiece is positioned in the radial direction and the axial direction, and then the supporting force of the auxiliary supporting assembly is adjusted to be offset with the jacking force provided by the profiling thimble, so that a balance state is achieved, (namely the workpiece is not influenced by external force of a clamp), and the purpose of reducing the deformation of the workpiece is achieved.
For the convenience of installation, the auxiliary support assembly is further defined to comprise a jackscrew, a spring and a support, wherein the jackscrew is arranged at the rear end of the through hole, the spring is connected between the jackscrew and the support, and the support is contacted with the outer side wall of the element.
In order to better ensure that the supporting force for adjusting the auxiliary supporting assembly is offset with the jacking force provided by the profiling thimble, the auxiliary supporting assembly is further limited to comprise a first auxiliary supporting assembly and a second auxiliary supporting assembly which are sequentially arranged in the positioning disc from the positioning hole to the outside.
In order to ensure the axial positioning accuracy of the workpiece, the positioning block is further limited to be arranged inwards at the front end edge of the positioning hole along the inner wall.
Further, the positioning plate is provided with a balancing weight.
Further limit, the pull rod overcoat is equipped with the pull rod cover, the cover that rises is connected with the pull rod cover through the coupling ring.
So set up, the axial displacement of the cover that rises can realize rising and tight or loosen the work piece.
Further reduce work piece deformation, further prescribe a limit, the material of profile modeling thimble is rubber.
Further defined, the drive member is a hydraulic link.
In order to ensure the concentricity of the expansion sleeve, the surfaces of the pull rod, which are matched with the expansion sleeve, are conical surfaces.
The utility model has the advantages that: the utility model can tighten the expansion sleeve by the pull rod sleeve through the pull rod of the driving piece broach, realizes the radial and axial positioning of the workpiece, and can counteract the jacking force provided by the profiling thimble by adjusting the supporting force of the auxiliary supporting component to reach a balanced state, thereby thoroughly and effectively solving the deformation problem after the workpiece is processed; and the time and the process of processing elements by the fixture are greatly reduced, and the production efficiency and the product percent of pass are improved.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic diagram of the structure of the element processed by the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a cross-sectional view in the direction a-a of fig. 1.
In the figure: 1. the fixture comprises a flange, 2 parts of a fixture body, 3 parts of a positioning disc, 4 parts of a first auxiliary supporting assembly, 5 parts of a second auxiliary supporting assembly, 6 parts of a workpiece, 7 parts of a push rod, 8 parts of an expansion sleeve, 9 parts of a profiling ejector pin, 10 parts of a positioning block, 11 parts of a balancing weight, 13 parts of a pull rod sleeve, 14 parts of a pull rod and 15 parts of a coupling ring.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in figures 2 and 3, an automatic lathe machining clamp for thin-wall parts comprises a clamp body 2, a flange 1, an expansion sleeve 8, a positioning disc 3, a workpiece 6 and a driving part (not shown in the figures), wherein the flange 1 is connected to a machine tool spindle interface, the clamp body 2 is fixed on the flange 1, the front end of the clamp body 2 is provided with the positioning disc 3 for positioning the outer side wall of the workpiece 6, the central position of the positioning disc 3 is provided with a positioning hole for installing the expansion sleeve 8, the positioning disc 3 is provided with a plurality of through holes penetrating through the front end surface and the rear end surface, the through holes are internally provided with auxiliary supporting components, the central position of the workpiece 6 is provided with a step hole, the front end of the expansion sleeve 8 is arranged in the step hole, the outer side wall of the workpiece 6 is provided with a profiling thimble 9, the profiling thimble 9 is connected to a mandril 7, one end of the mandril 7 is arranged on a machine tool tailstock, the other end of the mandril 7 is in threaded connection with a pull rod 14, the pull rod 14 penetrates through the expansion sleeve 13 and is connected with the driving part, the end of the pull rod 14 is matched with the expansion sleeve 8.
The auxiliary supporting component comprises a first auxiliary supporting component 4 and a second auxiliary supporting component 5 which are arranged in the positioning disc 3 from the positioning hole to the outside in sequence. The first auxiliary supporting component 4 and the second auxiliary supporting component 5 both comprise a jackscrew, a spring and a support, the jackscrew is arranged at the rear end of the through hole, the spring 15 is connected between the jackscrew and the support, and the support is in contact with the outer side wall of the element.
A positioning block 10 is arranged inwards on the inner wall of the front end edge of the positioning hole of the positioning disc 3; the positioning plate 3 is provided with a balancing weight 11.
The pull rod 14 is sleeved with a pull rod sleeve 13, and the expansion sleeve 8 is connected with the pull rod sleeve 13 through a coupling ring 15. The surfaces of the pull rod 14 and the expansion sleeve 8 are conical surfaces. The driving piece is a hydraulic connecting rod.
Preferably, the material of the profiling thimble 9 is rubber.
The working principle is as follows:
the expansion sleeve 8 moves axially to expand or loosen the workpiece 6; the integral clamp is used for tightly propping/loosening the workpiece 6 through the back and forth movement of the private clothes tailstock; during specific operation, the workpiece 6 is arranged on the expansion sleeve 8 through the manipulator, the driving piece pulls the pull rod 14, so that the pull rod sleeve 13 clamps the workpiece 6 through the expansion sleeve 8, and the manipulator leaves; the tailstock of the machine tool drives the ejector rod 7 and the profiling thimble 9 to move forward until the ejector rod and the profiling thimble are just contacted with the workpiece 6; the expansion sleeve 8 is loosened, the tailstock of the machine tool drives the ejector rod 7 and the profiling thimble 9 to move forward until the workpiece 6 is contacted with the positioning block 10 (the workpiece 6 is tightly pushed through the preset moment and position of the tailstock); the expansion sleeve 8 is clamped again, (at this time, the supporting force provided by the first auxiliary support 4 and the second auxiliary support 5 is just balanced with the jacking force provided by the profiling thimble 9); the machine tool starts machining.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable people skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (9)

1. The utility model provides an automatic lathe adds clamping apparatus of thin wall spare, includes anchor clamps body, flange, the cover that rises, positioning disk, work piece and driving piece, flange joint is on the lathe main shaft interface, the anchor clamps body is fixed on the flange, its characterized in that: the front end of anchor clamps body is provided with the positioning disk of location work piece lateral wall, the central point of positioning disk puts the locating hole that the department was equipped with the installation cover that rises, sets up a plurality of through-holes that run through front and back terminal surface on the positioning disk, be provided with the auxiliary stay subassembly in the through-hole, work piece central point puts the department and is equipped with the step hole, the cover front end that rises sets up downtheholely at the step, and the inside wall of work piece is equipped with the profile modeling thimble outward, the profile modeling thimble is connected on the ejector pin, the one end of ejector pin is installed on the lathe tailstock, and its other end and pull rod threaded connection, the pull rod passes the cover that rises and is connected with the driving piece, and the pull rod tip cooperatees with the cover that rises.
2. An automated lathing fixture of thin-walled parts according to claim 1, characterized in that: the auxiliary supporting assembly comprises a jackscrew, a spring and a supporting piece, the jackscrew is arranged at the rear end of the through hole, the spring is connected between the jackscrew and the supporting piece, and the supporting piece is in contact with the outer side wall of the element.
3. An automated lathing fixture of thin-walled parts according to claim 2, characterized in that: the auxiliary supporting assembly comprises a first auxiliary supporting assembly and a second auxiliary supporting assembly which are arranged in the positioning disc from the positioning hole outwards in sequence.
4. An automated lathing fixture of thin-walled parts according to claim 1, characterized in that: the positioning block is arranged inwards on the inner wall of the front end edge of the positioning hole.
5. An automatic lathe machining clamp for thin-walled workpieces according to any one of claims 1 to 4, wherein: and a balancing weight is arranged on the positioning plate.
6. An automated lathing fixture of thin-walled parts according to claim 1, characterized in that: the pull rod outer sleeve is provided with a pull rod sleeve, and the expansion sleeve is connected with the pull rod sleeve through a coupling ring.
7. An automated lathing fixture of thin-walled parts according to claim 1, characterized in that: the profiling thimble is made of rubber.
8. An automated lathing fixture of thin-walled parts according to claim 1, characterized in that: the driving piece is a hydraulic connecting rod.
9. An automated lathing fixture of thin-walled parts according to claim 1, characterized in that: the surfaces of the pull rod and the expansion sleeve which are matched are conical surfaces.
CN202120116719.7U 2021-01-15 2021-01-15 Automatic lathe machining clamp for thin-wall part Active CN215144817U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120116719.7U CN215144817U (en) 2021-01-15 2021-01-15 Automatic lathe machining clamp for thin-wall part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120116719.7U CN215144817U (en) 2021-01-15 2021-01-15 Automatic lathe machining clamp for thin-wall part

Publications (1)

Publication Number Publication Date
CN215144817U true CN215144817U (en) 2021-12-14

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Application Number Title Priority Date Filing Date
CN202120116719.7U Active CN215144817U (en) 2021-01-15 2021-01-15 Automatic lathe machining clamp for thin-wall part

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114354094A (en) * 2021-12-31 2022-04-15 泰州优麦精密机械有限公司 Rear-pull type internal-expansion zero-displacement airtight detection clamp for numerical control machine tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114354094A (en) * 2021-12-31 2022-04-15 泰州优麦精密机械有限公司 Rear-pull type internal-expansion zero-displacement airtight detection clamp for numerical control machine tool

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