CN113814501B - Linear cutting tool clamp - Google Patents

Linear cutting tool clamp Download PDF

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Publication number
CN113814501B
CN113814501B CN202111219849.4A CN202111219849A CN113814501B CN 113814501 B CN113814501 B CN 113814501B CN 202111219849 A CN202111219849 A CN 202111219849A CN 113814501 B CN113814501 B CN 113814501B
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China
Prior art keywords
base
workpiece
pressing
pressing device
convex ring
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CN202111219849.4A
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CN113814501A (en
Inventor
梅国清
李浩然
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Dongguan Pooward Precision Machinery Manufacture Ltd
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Dongguan Pooward Precision Machinery Manufacture Ltd
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Priority to CN202111219849.4A priority Critical patent/CN113814501B/en
Publication of CN113814501A publication Critical patent/CN113814501A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H11/00Auxiliary apparatus or details, not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/02Wire-cutting

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

The invention provides a linear cutting tool fixture which comprises an upper base, an upper pressing device, a lower base, a lower pressing device and quick locking devices, wherein the upper base is used for fixing the upper part of a workpiece through the upper pressing device, the lower base is used for fixing the lower part of the workpiece through the lower pressing device, the quick locking devices are symmetrically arranged on the outer sides of the upper base and the lower base respectively, the upper base is locked on the lower base through the quick locking devices, the upper base and the lower base are annular, a plurality of linear cutting grooves are formed in the upper base and the lower base in the vertical direction respectively, and the linear cutting grooves are arranged in an annular array. According to the invention, the blank is subjected to linear cutting, the upper pressing device and the lower pressing device are arranged at the position of each workpiece and are pressed and fixed, the workpiece clamping requirement is low firstly, and the stress action generated by the blank under the clamping of the upper base and the lower base during linear cutting is small, so that the workpiece can be prevented from being deformed due to stress, the qualified rate of the workpiece is greatly improved, the processing cost is reduced, multiple clamping is not required, and the processing efficiency is also improved.

Description

Linear cutting tool clamp
Technical Field
The invention relates to the field of linear cutting machining, in particular to a linear cutting tool clamp.
Background
The workpiece shown in fig. 1 has a circular cone shape and is made of: the high nickel alloy has high hardness, high strength and high cutting precision requirement, the workpiece needs to be uniformly divided into 45 parts during processing, and the processing method adopted in the processing is single milling cutter cutting and grinding, but the high nickel alloy material is difficult to process, so that great processing stress is generated during processing, the part is easy to deform, and the single piece processing qualification rate is unstable and the efficiency is low.
Disclosure of Invention
The invention aims to provide a linear cutting tool clamp which is low in workpiece clamping requirement, small in generated stress, high in qualification rate, low in cost and high in machining efficiency.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a wire cutting frock clamp, includes upper base, last closing device, lower base, lower closing device and quick locking device, the upper base is used for the upper portion of fixed work piece through last closing device, the base is used for the lower part of fixed work piece through closing device down, quick locking device symmetry respectively sets up in the outside of upper base and lower base, the upper base passes through quick locking device locking under on the base, the upper base is ring shape with lower base, a plurality of line cutting grooves have been seted up respectively to upper base and lower base along vertical direction, the line cutting groove is annular array and arranges.
Furthermore, the upper base further comprises an upper convex ring, the upper convex ring is formed by inwards extending the upper part of the inner ring surface of the upper base, the bottom surface of the upper convex ring is used for pressing the upper end surface of the workpiece, and the lower part of the inner ring surface of the upper base is used for pressing the upper side part of the outer ring surface of the workpiece.
Furthermore, the upper pressing device is arranged on the inner annular surface of the upper convex ring and is respectively positioned between the two cutting grooves.
Furthermore, the upper pressing device comprises an upper elastic sheet and an upper screw, the upper elastic sheet comprises a first installation part and a first pressing part, the first installation part is installed in a threaded hole in the inner annular surface of the upper convex ring through the upper screw, and the first pressing part presses the upper side part of the inner annular surface of the workpiece.
The lower base further comprises a lower convex ring, the lower convex ring is formed by inwards extending the lower portion of the inner ring surface of the lower base, the top surface of the lower convex ring is used for pressing the lower end surface of the workpiece, and the upper portion of the inner ring surface of the lower base is used for pressing the lower side portion of the outer ring surface of the workpiece.
Furthermore, the lower pressing device is arranged on the inner annular surface of the lower convex ring and is respectively positioned between the two wire cutting grooves.
Furthermore, the lower pressing device comprises a lower elastic sheet and a lower screw, the lower elastic sheet comprises a second installation part and a second pressing part, the second installation part is installed in a threaded hole in the inner annular surface of the lower convex ring through the lower screw, and the second pressing part is pressed on the lower side part of the inner annular surface of the workpiece.
Furthermore, the quick locking device comprises an upper locking seat, a lower locking seat and a locking handle, wherein the upper locking seat is arranged on the outer annular surface of the upper base, the lower locking seat is arranged on the outer annular surface of the lower base, the upper locking seat and the lower locking seat are arranged oppositely up and down, and the upper locking seat and the lower locking seat are connected through the locking handle.
Furthermore, a positioning column is arranged on the upper surface of the upper base, a positioning hole is formed in the lower surface of the lower base corresponding to the positioning column, and the upper base and the lower base are positioned through the positioning column and the positioning hole.
Furthermore, the upper end of the positioning column is conical.
The invention has the beneficial effects that:
when the tooling fixture is used for clamping, the lower part of a circular blank workpiece is arranged in the inner annular surface of the lower base, then the upper base is sleeved at the upper part of the blank workpiece, then the blank workpiece is locked between the upper base and the lower base through the quick locking device, and then the blank workpiece is tightly pressed on the inner annular surface of the blank workpiece through the upper pressing device and the lower pressing device, wherein each workpiece to be subjected to wire cutting independently corresponds to one group of the upper pressing device and the lower pressing device; compared with CNC and other milling processing, the invention has low workpiece clamping requirement, and the blank workpiece is clamped by the upper base and the lower base during wire cutting, so that the stress effect generated during wire cutting is small, thereby preventing the workpiece from deforming due to stress, greatly improving the qualification rate of the workpiece, reducing the processing cost, avoiding repeated clamping and improving the processing efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a process for cutting a workpiece from a blank line into individual finished workpieces;
FIG. 2 is a schematic perspective view of the clamped workpiece according to the present invention;
FIG. 3 is a schematic perspective view of the upper and lower bases of the present invention;
FIG. 4 is a schematic view of the upper and lower pressing devices of the present invention pressing a single workpiece;
FIG. 5 is a schematic structural view of the quick locking device of the present invention;
FIG. 6 is a top view of the present invention;
fig. 7 is a cross-sectional view at C-C of fig. 6.
The attached drawings indicate the following:
1. an upper base; 2. an upper pressing device; 3. a lower base; 4. a lower compression device; 5. a quick locking device; 6. cutting a groove by a line; A. an inner ring surface; B. an outer annular surface; 7. a workpiece;
11. an upper convex ring; 12. a first threaded hole; 13. a first mounting plane; 14. a first abutting surface; 15. positioning holes;
21. an upper spring plate; 22. screwing; 211. a first mounting portion; 212. a first pressing part;
31. a lower convex ring; 32. a second threaded hole; 33. a second mounting plane; 34. a second abutting surface; 35. a positioning column;
41. a lower elastic sheet; 42. a lower screw; 411. a second mounting portion; 412. a second pressing part;
51. an upper locking seat; 52. a lower locking seat; 53. locking the handle;
511. an upper locking groove; 521. a lower locking groove; 522. a rotating shaft;
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and the specific embodiments.
As shown in fig. 2, a wire cutting tool fixture comprises an upper base 1, an upper pressing device 2, a lower base 3, a lower pressing device 4 and a quick locking device 5, wherein the upper base 1 is used for fixing the upper half part of a workpiece 7 through the upper pressing device 2, the lower base 3 is used for fixing the lower half part of the workpiece 7 through the lower pressing device 4, the quick locking devices 5 are symmetrically arranged on the outer annular surfaces B of the upper base 1 and the lower base 3 respectively, the upper base 1 locks the workpiece 7 on the lower base 3 through the quick locking device 5, the upper base 1 and the lower base 3 are in a circular ring shape, a plurality of wire cutting grooves 6 are formed in the upper base 1 and the lower base 3 in the vertical direction respectively, and the wire cutting grooves 6 are arranged in an annular array.
As shown in fig. 3, in the present embodiment, the upper base 1 further includes an upper protruding ring 11, the upper protruding ring 11 is formed by extending inward from an upper portion of the inner annular surface a of the upper base 1, a bottom surface of the upper protruding ring 11 is used for pressing the upper end surface of the workpiece 7, and a lower portion of the inner annular surface a of the upper base 1 is used for pressing an upper portion of the outer annular surface B of the workpiece 7. The upper convex ring 11 is arranged, so that the upper end surface of the workpiece 7 can be pressed through the upper convex ring 11, and the workpiece 7 is prevented from generating upward tension suddenly during wire cutting, so that the workpiece 7 is prevented from deforming.
In this embodiment, the upper pressing device 2 is mounted on the inner annular surface a of the upper protruding ring 11 and is respectively located between the two wire cutting grooves 6.
As shown in fig. 4, in the present embodiment, the upper pressing device 2 includes an upper elastic sheet 21 and an upper screw 22, the upper elastic sheet 21 includes a first mounting portion 211 and a first pressing portion 212, the first mounting portion 211 is mounted in the first threaded hole 12 of the inner annular surface a of the upper convex ring 11 through the upper screw 22, and the first pressing portion 212 is pressed against the upper side portion of the inner annular surface a of the workpiece 7. The first screw hole 12 of the inner annular surface a is formed by opening from the outer annular surface B of the upper base 1. The pressing device 2 is arranged, so that the situation that each workpiece 7 shakes when cutting the last connecting position on line can be avoided.
In this embodiment, the longitudinal section of the first pressing portion 212 is in an arc shape bending outward, and the first pressing portion 212 is provided with an arc surface, and the arc surface abuts against the workpiece 7, so that the workpiece 7 cannot move in the radial direction during wire cutting.
As shown in fig. 3, in the present embodiment, the lower base 3 further includes a lower protruding ring 31, the lower protruding ring 31 is formed by extending inward from a lower portion of the inner annular surface a of the lower base 3, a top surface of the lower protruding ring 31 is configured to press against a lower end surface of the workpiece 7, and an upper portion of the inner annular surface a of the lower base 3 is configured to press against a lower side portion of the outer annular surface B of the workpiece 7. The lower convex ring 31 is provided, the lower end surface of the workpiece 7 can be pressed by the lower convex ring 31, and the workpiece 7 is prevented from generating downward tension suddenly during wire cutting, so that the workpiece 7 is prevented from deforming.
In this embodiment, the lower pressing devices 4 are mounted on the inner annular surface a of the lower protruding ring 31 and located between the two cutting grooves 6.
As shown in fig. 4, in the present embodiment, the lower pressing device 4 includes a lower elastic sheet 41 and a lower screw 42, the lower elastic sheet 41 includes a second mounting portion 411 and a second pressing portion 412, the second mounting portion 411 is mounted in the second threaded hole 32 of the inner annular surface a of the lower convex ring 31 through the lower screw 42, and the second pressing portion 412 is pressed against the lower side portion of the inner annular surface a of the workpiece 7. The screw hole of the inner ring surface A is formed by opening from the outer ring surface B of the upper base 1. The lower pressing device 4 is arranged, so that the situation that each workpiece 7 shakes when cutting the last connecting position on line can be avoided.
In this embodiment, the longitudinal section of the second pressing portion 412 is in an arc shape bent outward. The second pressing portion 412 is provided with an arc-shaped surface, and the arc-shaped surface abuts against the workpiece 7, so that the workpiece 7 does not move in the radial direction during wire cutting.
As shown in fig. 5 and 7, in the present embodiment, the quick locking device 5 includes an upper locking seat 51, a lower locking seat 52, and a locking handle 53, the upper locking seat 51 is mounted on the outer circumferential surface B of the upper base 1, the lower locking seat 52 is mounted on the outer circumferential surface B of the lower base 3, the upper locking seat 51 and the lower locking seat 52 are vertically opposed to each other, and the upper locking seat 51 and the lower locking seat 52 are connected by the locking handle 53. The quick locking device 5 is provided to quickly lock the upper base 1 and the lower base 3.
In this embodiment, the upper locking base 51 is provided with an upper locking slot 511 for the locking screw of the locking handle 53 to pass through.
In this embodiment, the lower locking base 52 is provided with a lower locking groove 521 corresponding to the upper locking groove 511, a rotating shaft 522 is installed in the lower locking groove 521, the lower end of the locking handle 53 is a threaded end, the threaded end is in threaded connection with the rotating shaft 522, and the locking handle 53 can rotate on the lower locking base 52 along with the rotating shaft 522.
The working principle of the quick locking device 5 is that during locking, the locking handle 53 is driven to rotate upwards, the locking screw of the locking handle 53 is inserted into the upper locking groove 511, and then the locking handle 53 is rotated, so that the handle part of the locking handle 53 abuts against the upper end face of the upper locking seat 51, and the upper base 1 and the lower base 3 are locked.
As shown in fig. 3, in the present embodiment, a first installation plane 13 for installing the upper locking seat 51 is opened on the outer ring surface B of the upper base 1, a first abutting surface 14 is formed above the first installation plane 13, the upper surface of the upper base 1 abuts against the first abutting surface 14, and the side surface of the upper base 1 abuts against the first installation plane 13. The first abutting surface 14 is provided to prevent the upper base 1 from being pressed upward and being separated from the upper base 1.
As shown in fig. 3, in the present embodiment, a second mounting plane 33 for mounting the lower locking seat 52 is opened on the outer annular surface B of the lower base 3, a second abutting surface 34 is formed below the second mounting plane 33, and the side surfaces of the lower base 3 abut against the second mounting plane 33 and the second abutting surface 34 respectively. It is possible to make the lower locking socket 52 more firmly mounted on the lower base 3.
As shown in fig. 3, in the embodiment, the upper surface of the upper base 1 is provided with a plurality of positioning columns 35, the lower surface of the lower base 3 is provided with positioning holes 15 corresponding to the positioning columns 35, the upper base 1 and the lower base 3 are positioned by the positioning columns 35 and the positioning holes 15, the taper pins and the positioning holes 15 can realize repeated positioning, and the installation efficiency of the upper base 1 and the lower base 3 is improved.
In this embodiment, the upper end of the positioning column 35 is tapered, so as to be conveniently butted with the positioning hole 15.
The working principle is as follows:
when the tooling fixture is used for clamping, the lower part of a circular blank workpiece is firstly installed in an inner annular surface A of a lower base 3, then an upper base 1 is sleeved on the upper part of the blank workpiece, then the blank workpiece is locked between the upper base 1 and the lower base 3 through a quick locking device 5, and then the blank workpiece is pressed on the inner annular surface A of the blank workpiece through an upper pressing device 2 and a lower pressing device 4, wherein each workpiece 7 to be subjected to wire cutting independently corresponds to one group of the upper pressing device 2 and the lower pressing device 4, and finally the whole circular blank workpiece is respectively cut into single finished workpieces along a wire cutting groove 6 through a wire cutting machine tool; compared with milling processing such as CNC (computerized numerical control) and the like, the workpiece clamping requirement is low, the stress effect generated during wire cutting is small under the clamping of the blank workpiece on the upper base 1 and the lower base 3 during wire cutting, so that the workpiece 7 can be prevented from being deformed due to stress, the qualification rate of the workpiece 7 is greatly improved, the processing cost is reduced, repeated clamping is not needed, and the processing efficiency is also improved.
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 (9)

1. The utility model provides a wire-electrode cutting frock clamp which characterized in that: the upper base is used for fixing the upper portion of a workpiece through the upper pressing device, the lower base is used for fixing the lower portion of the workpiece through the lower pressing device, the quick locking devices are symmetrically arranged on the outer sides of the upper base and the lower base respectively, the upper base is locked on the lower base through the quick locking devices, the upper base and the lower base are annular, a plurality of line cutting grooves are formed in the upper base and the lower base in the vertical direction respectively and are distributed in an annular array mode, the upper base further comprises an upper convex ring, the upper convex ring is formed by inwards extending the upper portion of the inner annular surface of the upper base, the bottom surface of the upper convex ring is used for pressing the upper end face of the workpiece, and the lower portion of the inner annular surface of the upper base is used for pressing the upper side portion of the outer annular surface of the workpiece.
2. The wire-electrode cutting tool clamp of claim 1, wherein: the upper pressing device is arranged on the inner ring surface of the upper convex ring and is respectively positioned between the two cutting grooves.
3. The wire-electrode cutting tool clamp of claim 2, wherein: the upper pressing device comprises an upper elastic sheet and an upper screw, the upper elastic sheet comprises a first installation part and a first pressing part, the first installation part is installed in a threaded hole in the inner annular surface of the upper convex ring through the upper screw, and the first pressing part presses the upper side part of the inner annular surface of the workpiece.
4. The wire-electrode cutting tool clamp of claim 1, wherein: the lower base further comprises a lower convex ring, the lower convex ring is formed by inwards extending the lower portion of the inner ring surface of the lower base, the top surface of the lower convex ring is used for pressing the lower end surface of the workpiece, and the upper portion of the inner ring surface of the lower base is used for pressing the lower side portion of the outer ring surface of the workpiece.
5. The wire cutting tool clamp of claim 4, wherein: and the lower pressing device is arranged on the inner ring surface of the lower convex ring and is respectively positioned between the two cutting grooves.
6. The wire-electrode cutting tool clamp of claim 5, wherein: the lower pressing device comprises a lower elastic sheet and a lower screw, the lower elastic sheet comprises a second installation part and a second pressing part, the second installation part is installed in a threaded hole in the inner annular surface of the lower convex ring through the lower screw, and the second pressing part is pressed on the lower side portion of the inner annular surface of the workpiece.
7. The wire-electrode cutting tool clamp of claim 1, wherein: the quick locking device comprises an upper locking seat, a lower locking seat and a locking handle, the upper locking seat is installed on the outer annular surface of the upper base, the lower locking seat is installed on the outer annular surface of the lower base, the upper locking seat and the lower locking seat are arranged up and down oppositely, and the upper locking seat and the lower locking seat are connected through the locking handle.
8. The wire-electrode cutting tool clamp of claim 1, wherein: the upper surface of the upper base is provided with a positioning column, the lower surface of the lower base is provided with a positioning hole corresponding to the positioning column, and the upper base and the lower base are positioned through the positioning column and the positioning hole.
9. The wire cutting tool clamp of claim 8, wherein: the upper end of the positioning column is conical.
CN202111219849.4A 2021-10-20 2021-10-20 Linear cutting tool clamp Active CN113814501B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111219849.4A CN113814501B (en) 2021-10-20 2021-10-20 Linear cutting tool clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111219849.4A CN113814501B (en) 2021-10-20 2021-10-20 Linear cutting tool clamp

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CN113814501A CN113814501A (en) 2021-12-21
CN113814501B true CN113814501B (en) 2022-11-04

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CN102773743A (en) * 2012-07-16 2012-11-14 沪东重机有限公司 Fixture for linear cutting of oil scraper ring seats of piston rods of low-speed marine diesel engines
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