CN116551409B - Numerical control vertical lathe with tail table and bit leg processing method - Google Patents

Numerical control vertical lathe with tail table and bit leg processing method Download PDF

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Publication number
CN116551409B
CN116551409B CN202310833813.8A CN202310833813A CN116551409B CN 116551409 B CN116551409 B CN 116551409B CN 202310833813 A CN202310833813 A CN 202310833813A CN 116551409 B CN116551409 B CN 116551409B
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China
Prior art keywords
center
chuck
workpiece
tail table
bit leg
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Active
Application number
CN202310833813.8A
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Chinese (zh)
Other versions
CN116551409A (en
Inventor
李猛
刘洪强
化春雷
黄靖轩
潘丁丁
李航
杜秋实
吕心如
秦伟
高宇
路平
刘晓莹
孙井泉
齐鸣
贺亮
王天宇
祝贺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Technology Group Machine Tool Engineering Research Institute Co ltd
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General Technology Group Machine Tool Engineering Research Institute Co ltd
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Application filed by General Technology Group Machine Tool Engineering Research Institute Co ltd filed Critical General Technology Group Machine Tool Engineering Research Institute Co ltd
Priority to CN202310833813.8A priority Critical patent/CN116551409B/en
Publication of CN116551409A publication Critical patent/CN116551409A/en
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Classifications

    • 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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
    • B23Q1/015—Frames, beds, pillars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B23/00—Tailstocks; Centres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B25/00—Accessories or auxiliary equipment for turning-machines
    • 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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • 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
    • B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Units (AREA)

Abstract

The invention discloses a numerical control vertical lathe with a tail table and a processing method of a bit leg, wherein the vertical lathe comprises the following steps: the lathe bed is provided with an upright post; the rotary chuck is horizontally and rotatably connected to the lathe bed, and a chuck center is arranged at the rotary center of the rotary chuck; the tool rest is connected to the upright post through a sliding device; the tail table mechanism comprises a bracket and a tail table center, one end of the bracket is connected with the lathe bed and used for supporting the tail table mechanism, and the tail table center is arranged right above the chuck center; the clamping tool is arranged on the upper end face of the rotary chuck. The clamping tool is used for clamping one end of a workpiece, and the numerical control vertical lathe with the tail table is matched with the tail table mechanism and the clamping tool through the vertical lathe, so that the inclined shaking of the bit leg due to the influence of self gravity in the machining process is avoided. The processing precision is ensured, a new bit leg processing scheme is provided, and the limitation of the existing horizontal lathe processing is broken through.

Description

Numerical control vertical lathe with tail table and bit leg processing method
Technical Field
The invention belongs to the technical field of numerical control machine tools, and particularly relates to a numerical control vertical lathe with a tail table and a bit leg processing method.
Background
Roller cone drill bits are widely used in the petroleum drilling industry and include a bit leg and a cone mounted on the bit leg shaft diameter. Because of the working characteristics of the drill bit for petroleum drilling, the bit leg is in an irregular contour shape, and the precision requirement for the bit leg journal for installing the cone is strict.
Because the clamping of the bit leg needs a special tool and is matched with the center of the machine tool to carry out jacking fastening on the shaft diameter of the bit leg. In the prior art, a horizontal lathe is adopted to process the bit leg, and the processing precision is lower due to the fact that the gravity of the bit leg is larger.
Disclosure of Invention
The invention aims to solve the problem of lower machining precision caused by the influence of self gravity of a bit leg when the horizontal lathe is used for machining the bit leg in the prior art.
In order to achieve the above object, the present invention provides a numerically controlled vertical lathe with a tailstock, comprising:
the machine tool comprises a machine tool body, wherein the machine tool body is provided with an upright post;
the rotary chuck is horizontally and rotatably connected to the lathe bed, and a chuck center is arranged at the rotation center of the rotary chuck;
the tool rest is connected to the upright post through a sliding device;
the tail table mechanism comprises a bracket and a tail table center, one end of the bracket is connected with the lathe bed and used for supporting the tail table mechanism, and the tail table center is arranged right above the chuck center;
the clamping tool is arranged on the upper end face of the rotary chuck;
the clamping tool is used for clamping one end of a workpiece, and the tail table center and the chuck center are used for respectively propping up two sides of the other end of the workpiece.
Optionally, the tail table mechanism includes:
the base is fixed on the bed body through the bracket;
the sleeve is arranged on the base in a sliding manner along the Z direction, a rear cover and a center sleeve are respectively arranged at the upper end and the lower end of the sleeve, and the center sleeve is positioned right above the rotary chuck;
and the tail table center is detachably connected with the center sleeve.
Optionally, an X-direction adjusting pad and a Y-direction adjusting pad are arranged between the base and the bracket.
Optionally, the centre gripping frock is the U type, includes:
the connecting part is detachably connected to the end face of the rotary chuck;
the supporting part and the extruding part are respectively arranged at two ends of the connecting part;
the clamping screw is arranged on the extrusion part and can extrude one end of the workpiece to be close to the supporting part;
the support screw is vertically arranged on the connecting part and used for supporting the workpiece in the Z direction.
Optionally, a position switch is further provided on the tail table mechanism, and the position switch includes:
the detection rod is provided with one end arranged on the sleeve, and the other end of the detection rod is provided with an induction block;
the two inductive switches are arranged on the base at vertical intervals, and the distance between the two inductive switches is equal to the lifting stroke of the sleeve.
Optionally, the spin chuck is a self-centering chuck.
Optionally, one end of the support is arranged on the outer side of the lathe bed, and the other end of the support is connected with the base through a bending part.
Optionally, a Z-directional slide rail and a driving cylinder are arranged on the base, the sleeve is slidably connected to the slide rail, and the driving end of the driving cylinder is connected to the sleeve.
The invention also provides a bit leg processing method, which comprises the following steps of:
processing a first process hole and a second process hole on the top surface and the back surface of the workpiece respectively;
penetrating the first process hole and the second process hole by utilizing the tail table center and the chuck center part to position the workpiece;
adjusting a clamping tool, supporting a workpiece and limiting the workpiece to rotate;
the rotating chuck drives the workpiece to rotate, and the tool rest fixes the tool to be close to the workpiece for turning.
Optionally, the workpiece is a bit leg workpiece.
The invention relates to a numerical control vertical lathe with a tail table, which has the beneficial effects that:
according to the numerical control vertical lathe with the tail table, the tail table mechanism and the clamping tool are matched through the vertical lathe, so that the bit leg is prevented from being inclined and swaying due to the influence of self gravity in the machining process, the machining precision is ensured, a new bit leg machining scheme is provided, and the limitation of the existing horizontal lathe machining is overcome.
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 structural view of a numerical control vertical lathe with a tailstock according to an embodiment of the present invention.
Fig. 2 shows a schematic structural view of a tailstock mechanism of a numerically controlled vertical lathe with a tailstock according to an embodiment of the present invention.
Fig. 3 shows a schematic structural diagram of a clamping tool of a numerical control vertical lathe with a tail table according to an embodiment of the invention.
Fig. 4 is a schematic diagram of a configuration of a leg of a workpiece to be machined by a tailed numerical control vertical lathe and a leg machining method according to an embodiment of the present invention.
Reference numerals illustrate:
1. a bed body; 2. a column; 3. a rotating chuck; 4. a chuck center; 5. a tool holder; 6. a tail table center; 7. clamping a tool; 8. a bracket; 9. a base; 10. a sleeve; 11. a clamping screw; 12. a support screw; 13. a detection rod; 14. an inductive switch; 15. a second process hole; 16. a journal; 17. leg portions.
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 4, a numerically controlled vertical lathe with a tailstock includes:
the machine tool comprises a machine tool body 1, wherein the machine tool body 1 is provided with an upright post 2;
the rotary chuck 3 is horizontally and rotatably connected to the lathe bed 1, and a chuck center 4 is arranged at the rotation center of the rotary chuck 3;
the tool rest 5 is connected to the upright post 2 through a sliding device;
the tail table mechanism comprises a bracket 8 and a tail table center 6, one end of the bracket 8 is connected with the lathe bed 1 and used for supporting the tail table mechanism, and the tail table center 6 is arranged right above the chuck center 4;
the clamping tool 7 is arranged on the upper end face of the rotary chuck 3;
the clamping tool 7 is used for clamping one end of a workpiece, and the tail table center 6 and the chuck center 4 are used for respectively propping against two sides of the other end of the workpiece.
Specifically, one end of the bit leg 17 is located between the tail table center 6 and the chuck center 4, the tail table center 6 and the chuck center 4 clamp and position the bit leg 17 from the upper side and the lower side, so that stable clamping and machining precision of a shaft neck 16 of the bit leg 17 are guaranteed, the other end of the bit leg 17 is connected with a clamping tool 7, the bit leg 17 is supported through the clamping tool 7, the horizontal state of the bit leg 17 is guaranteed, influences of dead weights of the bit leg 17 are counteracted, and stability of the bit leg 17 in a rotating process is guaranteed.
Further, the sliding device is a three-coordinate system moving mechanism and is used for driving the tool rest 5 to move, the spindle box is arranged in the lathe bed, and the output end of the spindle box vertically extends out of the lathe bed 1 upwards and is coaxially connected with the rotary chuck 8.
In this embodiment, the tail table mechanism includes:
the base 9, the base 9 is fixed on the lathe bed through the bracket 8;
the sleeve 10 is arranged on the base 9 in a sliding manner along the Z direction, the upper end and the lower end of the sleeve 10 are respectively provided with a rear cover and a center sleeve, and the center sleeve is positioned right above the rotary chuck 3;
the tail table center 6 is detachably connected with the center sleeve.
Specifically, the tail platform center 6 can move up and down to match the chuck center 4 to clamp a workpiece.
In the present embodiment, an X-direction adjustment pad and a Y-direction adjustment pad are provided between the base 9 and the bracket 8.
Specifically, the tail table center 6 is ensured to be positioned right above the chuck center 4 by the aid of the matched grinding X-direction adjusting pad and the Y-direction adjusting pad.
In this embodiment, the clamping fixture 7 is U-shaped, including:
a connecting part detachably connected to an end surface of the spin chuck 3;
the supporting part and the extruding part are respectively arranged at two ends of the connecting part;
a clamping screw 11, the clamping screw 11 is arranged on the extrusion part, and one end of the workpiece can be extruded to be close to the supporting part;
and a support screw 12, wherein the support screw 12 is vertically arranged on the connecting part and is used for supporting the workpiece in the Z direction.
Specifically, the clamping tool 7 is matched with the tail table center 6 and the chuck center 4 to ensure the stability of the bit leg 17 in the rotating process, and the bit leg 17 is prevented from shaking in the rotating process. The support screw 12 is used for supporting the workpiece in the Z direction to keep the workpiece stable, and the clamping screw 11 extrudes and limits the workpiece to avoid the workpiece from shaking.
Further, the connection portion is provided with a through hole, which can be fixed to the spin chuck 8 by a bolt assembly.
In this embodiment, still be provided with position switch on the tail platform mechanism, position switch includes:
the detection rod 13, one end of the detection rod 13 is arranged on the sleeve 10, and the other end of the detection rod 13 is provided with an induction block;
the two inductive switches 14 are vertically arranged on the base 9 at intervals, and the distance between the two inductive switches 14 is equal to the lifting stroke of the sleeve 10.
Specifically, the stroke of the tail platform center 6 is limited through a position switch, when the tail platform center 6 descends to drive the detection rod 13 to synchronously descend, the induction block reacts with the induction switch 14 positioned below to indicate that the maximum descending position is reached, the controller is informed to stop descending, and otherwise, when the tail platform center 6 ascends to the highest position, the induction block reacts with the induction switch 14 positioned above to inform the controller to stop ascending.
In the present embodiment, the spin chuck 3 is a self-centering chuck.
Specifically, the self-centering chuck clamps the chuck center 4 by the jaws so that the chuck center 4 is positioned at the rotation center.
In the present embodiment, one end of the support 8 is disposed outside the bed 1, and the other end of the support 8 is connected to the base 9 through a bent portion.
Specifically, the tail table center 6 is ensured to be positioned right above the chuck center 4 through the bending part of the bracket 8, the X-direction adjusting pad and the Y-direction adjusting pad.
In this embodiment, a Z-directional slide rail and a driving cylinder are disposed on the base 9, the sleeve 10 is slidably connected to the slide rail, and the driving end of the driving cylinder is connected to the sleeve 10.
Specifically, the driving oil cylinder provides power to drive the sleeve 10 to slide along the Z-direction sliding rail, so that the lifting motion of the tail table center 6 is realized.
The invention also provides a bit leg processing method, which comprises the following steps of:
processing a first process hole and a second process hole 15 on the top surface and the back surface of the workpiece respectively;
penetrating the first process hole and the second process hole 15 by utilizing the tail table center 6 and the chuck center 4 to position a workpiece;
adjusting a clamping tool 7, supporting a workpiece and limiting the workpiece to rotate;
the rotating chuck drives the workpiece to rotate, and the tool rest fixes the tool to be close to the workpiece for turning.
Specifically, the tail table center 6 and the chuck center 4 are matched and clamped and positioned in the Z direction conveniently through the processing process holes, and then the XY direction is positioned through the clamping tool 7, so that complete restraint of the bit leg 17 is realized, and the stability of the bit leg 17 in the turning process is ensured.
In this embodiment, the workpiece is a leg workpiece.
In this embodiment, the first and second process holes 15 are located on the axial diameter of bit leg 17.
Specifically, a first tooling hole is provided at the back socket of bit leg 17 and a second tooling hole 15 is provided at the end of journal 16 of bit leg 17.
In this embodiment, the table top 6 and the chuck top 4 clamp the bit leg 17 through the first and second process holes 15, comprising:
the second process hole 15 is vertically sleeved on the chuck center 4, so that one end of the bit leg 17 far away from the first process hole is positioned in the clamping tool 7;
the tail table top 6 is driven to be downwards inserted into the first process hole to clamp the bit leg 17.
In this embodiment, adjusting the clamping fixture 7 includes:
adjusting a supporting screw 12 of the clamping tool 7 to support the workpiece in the Z direction;
the clamping screw 11 of the clamping tool 7 is adjusted to horizontally position the workpiece.
When the numerical control vertical lathe with the tail table of the embodiment is used, taking the positioning use of the bit leg as an example,
first, drilling a first process hole and a second process hole 15 on the top surface and the back surface of the shaft diameter of a bit leg 17, wherein the first process hole and the second process hole 15 are coaxial with the shaft diameter of the bit leg 17;
aligning the second process hole 15 with the tip of the chuck center 4 to enable the bit leg 17 to be stably placed on the chuck center 4;
the tail table center 6 moves downwards to be inserted into the first process hole, and the bit leg 17 is tightly propped in the Z-axis direction by the combined chuck center 4;
adjusting a supporting screw 12 of the clamping tool 7 to support the workpiece of the bit leg 17 in the Z direction;
and the clamping screw 11 of the tool is adjusted, the side surface of the bit leg 17 is tightly attached to the supporting part, and the rotation of the bit leg 17 is limited.
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 (8)

1. A numerically controlled vertical lathe with a tailstock, comprising:
the machine tool comprises a machine tool body, wherein the machine tool body is provided with an upright post;
the rotary chuck is horizontally and rotatably connected to the lathe bed, and a chuck center is arranged at the rotation center of the rotary chuck;
the tool rest is connected to the upright post through a sliding device;
the tail table mechanism comprises a bracket and a tail table center, one end of the bracket is connected with the lathe bed and used for supporting the tail table mechanism, and the tail table center is arranged right above the chuck center;
the clamping tool is arranged on the upper end face of the rotary chuck;
the clamping tool is used for clamping one end of a workpiece, and the tail table center and the chuck center are respectively propped against two sides of the other end of the workpiece;
the centre gripping frock is the U type, includes:
the connecting part is detachably connected to the end face of the rotary chuck;
the supporting part and the extruding part are respectively arranged at two ends of the connecting part;
the clamping screw is arranged on the extrusion part and can extrude one end of the workpiece to be close to the supporting part;
the support screw is vertically arranged on the connecting part and is used for supporting the workpiece in the Z direction;
further comprises:
the workpiece is a bit leg, the first process hole is formed in the back pit of the bit leg, the second process hole is formed in the end portion of the shaft neck of the bit leg, the tail platform center and the chuck center clamp the bit leg through the first process hole and the second process hole, the supporting screw is used for supporting the bottom of the bit leg to keep the bit leg stable, and the clamping screw extrudes to limit the bit leg to shake.
2. The tailstock-equipped numerically controlled vertical lathe of claim 1, wherein the tailstock mechanism comprises:
the base is fixed on the bed body through the bracket;
the sleeve is arranged on the base in a sliding manner along the Z direction, a rear cover and a center sleeve are respectively arranged at the upper end and the lower end of the sleeve, and the center sleeve is positioned right above the rotary chuck;
and the tail table center is detachably connected with the center sleeve.
3. The numerically controlled vertical lathe with a tail table according to claim 2, wherein an X-direction adjusting pad and a Y-direction adjusting pad are arranged between the base and the bracket.
4. The numerically controlled vertical lathe with a tail table according to claim 2, wherein a position switch is further provided on the tail table mechanism, the position switch comprising:
the detection rod is provided with one end arranged on the sleeve, and the other end of the detection rod is provided with an induction block;
the two inductive switches are arranged on the base at vertical intervals, and the distance between the two inductive switches is equal to the lifting stroke of the sleeve.
5. The tailstock numerically controlled vertical lathe of claim 1, wherein the spin chuck is a self-centering chuck.
6. The numerically controlled vertical lathe with a tail table according to claim 2, wherein one end of the bracket is arranged on the outer side of the lathe body, and the other end of the bracket is connected with the base through a bending part.
7. The numerical control vertical lathe with the tail table according to claim 2, wherein a Z-direction sliding rail and a driving oil cylinder are arranged on the base, the sleeve is connected to the sliding rail in a sliding mode, and the driving end of the driving oil cylinder is connected with the sleeve.
8. A method of leg processing using the tailed bench digital controlled vertical lathe according to any of claims 1-7, comprising:
processing a first process hole and a second process hole on the top surface and the back surface of the workpiece respectively;
penetrating the first process hole and the second process hole by utilizing the tail table center and the chuck center part to position the workpiece;
adjusting a clamping tool, supporting a workpiece and limiting the workpiece to rotate;
the rotating chuck drives the workpiece to rotate, and the tool rest fixes the tool to be close to the workpiece for turning.
CN202310833813.8A 2023-07-10 2023-07-10 Numerical control vertical lathe with tail table and bit leg processing method Active CN116551409B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310833813.8A CN116551409B (en) 2023-07-10 2023-07-10 Numerical control vertical lathe with tail table and bit leg processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310833813.8A CN116551409B (en) 2023-07-10 2023-07-10 Numerical control vertical lathe with tail table and bit leg processing method

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CN116551409A CN116551409A (en) 2023-08-08
CN116551409B true CN116551409B (en) 2023-09-08

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204471119U (en) * 2015-02-13 2015-07-15 湖南天鹰钻机制造有限公司 A kind of grinding bit leg journel device
CN207577898U (en) * 2017-11-30 2018-07-06 苏州新锐合金工具股份有限公司 A kind of bit leg finish-milling clamp for machining
JP2021146429A (en) * 2020-03-18 2021-09-27 株式会社Fuji Machine tool
CN217291208U (en) * 2021-12-29 2022-08-26 苏州思丹孚钻具有限公司 Press mounting device based on quick alignment of spindle nose reference surface

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204471119U (en) * 2015-02-13 2015-07-15 湖南天鹰钻机制造有限公司 A kind of grinding bit leg journel device
CN207577898U (en) * 2017-11-30 2018-07-06 苏州新锐合金工具股份有限公司 A kind of bit leg finish-milling clamp for machining
JP2021146429A (en) * 2020-03-18 2021-09-27 株式会社Fuji Machine tool
CN217291208U (en) * 2021-12-29 2022-08-26 苏州思丹孚钻具有限公司 Press mounting device based on quick alignment of spindle nose reference surface

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