CN109262380B - Auxiliary processing device for grinding waste hard alloy blade - Google Patents
Auxiliary processing device for grinding waste hard alloy blade Download PDFInfo
- Publication number
- CN109262380B CN109262380B CN201811185706.4A CN201811185706A CN109262380B CN 109262380 B CN109262380 B CN 109262380B CN 201811185706 A CN201811185706 A CN 201811185706A CN 109262380 B CN109262380 B CN 109262380B
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- screw rod
- moving mechanism
- hole section
- fixing seat
- pressing body
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- 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)
- Crushing And Pulverization Processes (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The auxiliary processing device comprises a longitudinal moving mechanism, a base, a transverse moving mechanism and a deflection mechanism, wherein the longitudinal moving mechanism comprises a first supporting frame, a first bearing seat, a first fixing seat, a first screw rod and a first rotating disc; the transverse moving mechanism comprises a second supporting frame, a second bearing, a second fixing seat, a second screw rod and a second rotating disc; the deflection mechanism comprises a cutter pressing body, a ball screw and a lock nut, wherein a semicircular arc groove matched with the ball part of the ball screw is formed in the bottom of the cutter pressing body, the lock nut is sleeved on the shaft part between the ball screw and the second fixing seat, the internal thread on the lock nut is in threaded connection with the external thread on the bottom of the cutter pressing body, the ball part of the ball screw is sleeved in the semicircular arc groove of the bottom of the cutter pressing body, and the lock nut is screwed, so that the ball part of the ball screw is in a sliding fit state or a locking state in the semicircular arc groove of the bottom of the cutter pressing body.
Description
Technical Field
The invention relates to an auxiliary machining device, in particular to an auxiliary machining device for grinding waste hard alloy blades.
Background
In the mechanical industry, numerical control machine tools are widely used in machining. A large number of forming cutter blades are needed in machining of the numerical control machine tool, however, the forming cutter blades are basically made of hard alloy materials, the geometric accuracy of the cutter blades is high, the required size must be kept consistent, the forming cutter blades cannot be used once worn, the hard alloy steel is extremely wasted, and meanwhile the number and cost of the forming cutter blades are increased.
Aiming at the situation, the existing sharpening equipment is adopted to sharpen the worn formed cutter blade, however, the existing sharpening equipment has the defects of multiple clamping times and long auxiliary time, and clamping errors are inevitably generated after multiple clamping, so that the sharpening quality of the blade is reduced, and the sharpening precision requirement cannot be met.
Disclosure of Invention
The invention aims at: aiming at the defects of the prior art, the auxiliary processing device for grinding the waste hard alloy blade only needs to be clamped and ground once, and improves grinding quality and cutting edge grinding precision.
The technical scheme includes that the auxiliary processing device for grinding the waste hard alloy blades comprises a longitudinal moving mechanism, a base, a transverse moving mechanism and a deflection mechanism, wherein the longitudinal moving mechanism mainly comprises a first support frame, a first bearing seat, a first fixing seat, a first screw rod and a first rotating disc, the bottom surface of the first support frame is fixedly connected to the upper surface of the base, the front end and the rear end of the first support frame are respectively fixedly provided with the first bearing seat, the front end of the first screw rod is fixedly connected with the first rotating disc, the first screw rod sequentially penetrates through the first bearing seat and the first fixing seat at the front end in a threaded connection mode, and the rear end of the first screw rod can be rotatably arranged on the first bearing seat at the rear end; the transverse moving mechanism mainly comprises a second support frame, a second bearing seat, a second fixing seat, a second screw rod and a second rotating disc, wherein the bottom surface of the second support frame is fixedly connected to the upper surface of the first fixing seat of the longitudinal moving mechanism, the front end and the rear end of the second support frame are respectively fixedly provided with one second bearing seat, the front end of the second screw rod is fixedly connected with the second rotating disc, the second screw rod sequentially passes through the second bearing seat and the second fixing seat at the front end in a threaded connection manner, and the rear end of the second screw rod can be rotatably arranged on the second bearing seat at the rear end; the first rotating disc is rotated, so that the transverse moving mechanism can move back and forth along the longitudinal direction along with a first fixing seat of the longitudinal moving mechanism; the deflection mechanism mainly comprises a cutter pressing body, a ball screw and a lock nut, wherein a pressing plate is arranged at the top of the cutter pressing body through a pressing screw, the waste hard alloy cutter is placed between the pressing plate and the cutter pressing body, and the waste hard alloy cutter between the pressing plate and the cutter pressing body can be fastened by screwing the pressing screw; the external thread at the bottom of the ball screw is in threaded connection with the internal thread on the second fixing seat of the transverse moving mechanism and locked, a semicircular groove matched with the ball head part of the ball screw is formed in the bottom of the cutter pressing body, the locking nut is sleeved on the shaft part between the ball screw and the second fixing seat of the transverse moving mechanism, the internal thread on the locking nut is in threaded connection with the external thread at the bottom of the cutter pressing body, so that the ball head part of the ball screw is sleeved in the semicircular groove at the bottom of the cutter pressing body, and the locking nut is screwed, so that the ball head part of the ball screw is in a sliding fit state or a locking state in the semicircular groove at the bottom of the cutter pressing body; the second rotating disc is rotated, so that the deflection mechanism can move back and forth along the transverse direction along with a second fixing seat of the transverse moving mechanism; the through hole of the locking nut of the deflection mechanism is of a variable diameter structure and is divided into a first hole section, a second hole section and a third hole section from top to bottom, the diameter of the first hole section is larger than that of a ball head part of the ball head screw rod, and an internal thread of the first hole section is in threaded connection with an external thread at the bottom of the cutter pressing body; a circle of hard alloy is deposited on an annular transition part between the inner wall of the first hole section and the inner wall of the second hole section; the diameter of the second hole section is smaller than the diameter of the ball head part of the ball head screw rod and larger than the diameter of the rod body part of the ball head screw rod; the diameter of the third hole section is larger than the diameter of the second hole section.
Further, the third hole section of the lock nut is flared in a horn shape, and the hole diameter of the third hole section is gradually increased from top to bottom.
The screw rod is made of stainless steel.
The beneficial effects of the invention are as follows: according to the invention, the waste hard alloy blade can be sharpened by only one clamping and multiple adjustment, so that the sharpening quality and the sharpening precision are improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a front view of the present invention.
Fig. 2 is an exploded view of the yaw mechanism on the auxiliary processing device.
Fig. 3 is a state diagram of the deflection of the pressing blade body of the deflection mechanism.
Fig. 4 is another state diagram of the deflection of the deflecting mechanism pressing blade body.
Fig. 5 is a top view of fig. 1.
The meaning of the symbols in the figures: 1-a longitudinal movement mechanism; 101-a first support frame; 102-a first bearing seat; 103-a first fixing seat; 104-a first screw rod; 105—a first rotating disc; 2-a base; 201-mounting holes; 3-a lateral movement mechanism; 301-a second support frame; 302—a second bearing; 303-a second fixing base; 304-a second screw rod; 305-a second rotating disk; 4-a deflection mechanism; 401-pressing a cutter body; 4011-a semicircular arc-shaped groove; 402—ball screw; 403-lock nut; 4031—a first bore section; 4032-a second bore section; 4033—a third bore section; 404—cemented carbide; 405-pressing plate; 406—a compression screw; 5-hard alloy blade.
Detailed Description
See fig. 1 to 5: the invention relates to an auxiliary processing device for grinding waste hard alloy blades.
The auxiliary processing device comprises a longitudinal moving mechanism 1, a base 2, a transverse moving mechanism 3 and a deflection mechanism 4. Wherein, be provided with mounting hole 201 on the base 2, this mounting hole 201 passes through bolt and lathe fixed connection.
The longitudinal moving mechanism 1 mainly comprises a first supporting frame 101, a first bearing seat 102, a first fixing seat 103, a first screw rod 104 and a first rotating disc 105, wherein the bottom surface of the first supporting frame 101 is fixedly connected to the upper surface of the base 2, the front end and the rear end of the first supporting frame 101 are respectively fixedly provided with the first bearing seat 102, the front end of the first screw rod 104 is fixedly connected with the first rotating disc 105, the first screw rod 104 sequentially penetrates through the first bearing seat 102 and the first fixing seat 103 at the front end in a threaded connection manner, and the rear end of the first screw rod 104 can be rotatably arranged on the first bearing seat 102 at the rear end. The first rotating disc 105 is rotated, so that the first fixing seat 103 screwed on the first screw rod 104 can move back and forth along the length direction (longitudinal direction) of the first screw rod 104.
The transverse moving mechanism 3 mainly comprises a second supporting frame 301, a second bearing 302, a second fixing seat 303, a second screw rod 304 and a second rotating disc 305, wherein the bottom surface of the second supporting frame 301 is fixedly connected to the upper surface of the first fixing seat 103 of the longitudinal moving mechanism 1, the front end and the rear end of the second supporting frame 301 are respectively fixedly provided with the second bearing seat 302, the front end of the second screw rod 304 is fixedly connected with the second rotating disc 305, the second screw rod 304 sequentially passes through the second bearing seat 302 and the second fixing seat 303 at the front end in a threaded connection manner, and the rear end of the second screw rod 304 can be rotatably arranged on the second bearing seat 302 at the rear end; the rotation of the first rotary disk 105 can make the lateral movement mechanism 3 move back and forth along the longitudinal direction along with the first fixing base 103 of the longitudinal movement mechanism 1. The second rotating disc 305 is rotated, so that the second fixing seat 303 screwed on the second screw rod 304 can move back and forth along the length direction (transverse direction) of the second screw rod 304.
The deflection mechanism 4 mainly comprises a cutter pressing body 401, a ball screw 402 and a lock nut 403, wherein a pressing plate 405 is arranged at the top of the cutter pressing body 401 through a pressing screw, the waste hard alloy cutter is placed between the pressing plate and the cutter pressing body 401, and the waste hard alloy cutter between the pressing plate 405 and the cutter pressing body 401 can be fastened by screwing the pressing screw 406.
The external thread at the bottom of the ball screw 402 is in threaded connection with the internal thread on the second fixing seat 303 of the lateral movement mechanism 3 and locked (a locking screw is arranged on the second fixing seat 303 to fix the relative rotation between the ball screw 402 and the second fixing seat 303), a semicircular groove 4011 matched with the ball part of the ball screw 402 is arranged at the bottom of the cutter pressing body 401, a locking nut 403 is sleeved on the shaft part of the ball screw 402 between the ball screw 402 and the second fixing seat 303 of the lateral movement mechanism 3, and the internal thread on the locking nut 403 is in threaded connection with the external thread at the bottom of the cutter pressing body 401, so that the ball part of the ball screw 402 is sleeved in the semicircular groove 4011 at the bottom of the cutter pressing body 401, and the locking nut 403 is screwed, so that the ball part of the ball screw 402 is in a sliding fit state or a locking state in the semicircular groove 4011 at the bottom of the cutter pressing body 401. When in a floating engagement state, the pressing blade 401 may be biased in any direction around the ball portion of the locking screw with the ball portion of the locking screw as a bias center (for example, fig. 3 and 4). The second rotating disc 305 is rotated, so that the yaw mechanism 4 can move back and forth along the transverse direction (the length direction of the second screw rod 304) along with the second fixing seat 303 of the transverse moving mechanism 3. Wherein the screw rod is made of stainless steel.
The through hole (the shaft part sleeved on the ball screw 402) of the lock nut 403 of the deflection mechanism 4 is in a variable diameter structure and is divided into a first hole section 4031, a second hole section 4032 and a third hole section 4033 from top to bottom, the diameter of the first hole section 4031 is larger than that of the ball part of the ball screw 402, and the internal thread of the first hole section 4031 is in threaded connection with the external thread at the bottom of the cutter body 401; the annular transition part between the inner wall of the first hole section 4031 and the inner wall of the second hole section 4032 is overlaid with a circle of hard alloy 404 to compensate the abrasion of the locking nut caused by repeated use, and meanwhile, the locking capability of the locking nut 403 to lock the ball part of the ball screw 402 in the semicircular arc-shaped groove 4011 at the bottom of the cutter pressing body 401 is improved; the diameter of the second hole section 4032 is smaller than the diameter of the ball portion of the ball screw 402 and larger than the diameter of the shaft portion of the ball screw 402; the third hole section 4033 has a diameter greater than the diameter of the second hole section 4032.
Preferably, the third hole section 4033 of the lock nut 403 is flared in a horn shape with a gradually increasing hole diameter from top to bottom.
Clamping the waste hard alloy blade 5 between the pressing cutter body 401 and the pressing plate 405, pressing by a pressing screw, rotating the first rotating disc 105, and adjusting the position of the waste hard alloy blade 5 in the longitudinal direction; rotating the second rotating disc 305 to adjust the position of the waste hard alloy blades 5 in the transverse direction; swinging the pressing cutter body 401, adjusting the deflection angle of the waste hard alloy cutter blade 5 relative to the ball head part of the locking screw, and locking and fixing the waste hard alloy cutter blade by a locking nut 403; through the adjustment of the three aspects, the clamping requirements of the waste hard alloy blade 5 in different grinding stages on grinding are met, the one-time clamping, the multiple adjustment and the dead angle free adjustment are realized, the adjustment flexibility is high, the clamping errors caused by the multiple clamping are avoided, and the grinding quality and the sharpening precision are improved.
The above embodiments are only for illustrating the present invention, and are not to be construed as limiting the invention. Although the invention has been described in detail with reference to the specific embodiments described above, it will be appreciated by those skilled in the art that: the specific technical scheme can be modified or part of technical features in the technical scheme can be replaced equivalently; such modifications and substitutions do not depart from the spirit and scope of the invention.
Claims (1)
1. An auxiliary processing device for grinding waste hard alloy blades is characterized in that: the auxiliary processing device comprises a longitudinal moving mechanism, a base, a transverse moving mechanism and a deflection mechanism, wherein the longitudinal moving mechanism mainly comprises a first support frame, a first bearing seat, a first fixing seat, a first screw rod and a first rotating disc, the bottom surface of the first support frame is fixedly connected to the upper surface of the base, the front end and the rear end of the first support frame are respectively fixedly provided with the first bearing seat, the front end of the first screw rod is fixedly connected with the first rotating disc, the first screw rod sequentially penetrates through the first bearing seat and the first fixing seat at the front end in a threaded connection mode, and the rear end of the first screw rod can be rotatably arranged on the first bearing seat at the rear end; the transverse moving mechanism mainly comprises a second support frame, a second bearing seat, a second fixing seat, a second screw rod and a second rotating disc, wherein the bottom surface of the second support frame is fixedly connected to the upper surface of the first fixing seat of the longitudinal moving mechanism, the front end and the rear end of the second support frame are respectively fixedly provided with one second bearing seat, the front end of the second screw rod is fixedly connected with the second rotating disc, the second screw rod sequentially passes through the second bearing seat and the second fixing seat at the front end in a threaded connection manner, and the rear end of the second screw rod can be rotatably arranged on the second bearing seat at the rear end; the first rotating disc is rotated, so that the transverse moving mechanism can move back and forth along the longitudinal direction along with a first fixing seat of the longitudinal moving mechanism; the deflection mechanism mainly comprises a cutter pressing body, a ball screw and a lock nut, wherein a pressing plate is arranged at the top of the cutter pressing body through a pressing screw, the waste hard alloy cutter is placed between the pressing plate and the cutter pressing body, and the waste hard alloy cutter between the pressing plate and the cutter pressing body can be fastened by screwing the pressing screw; the external thread at the bottom of the ball screw is in threaded connection with the internal thread on the second fixing seat of the transverse moving mechanism and locked, a semicircular groove matched with the ball head part of the ball screw is formed in the bottom of the cutter pressing body, the locking nut is sleeved on the shaft part between the ball screw and the second fixing seat of the transverse moving mechanism, the internal thread on the locking nut is in threaded connection with the external thread at the bottom of the cutter pressing body, so that the ball head part of the ball screw is sleeved in the semicircular groove at the bottom of the cutter pressing body, and the locking nut is screwed, so that the ball head part of the ball screw is in a sliding fit state or a locking state in the semicircular groove at the bottom of the cutter pressing body; the second rotating disc is rotated, so that the deflection mechanism can move back and forth along the transverse direction along with a second fixing seat of the transverse moving mechanism; the through hole of the locking nut of the deflection mechanism is of a variable diameter structure and is divided into a first hole section, a second hole section and a third hole section from top to bottom, the diameter of the first hole section is larger than that of a ball head part of the ball head screw rod, and an internal thread of the first hole section is in threaded connection with an external thread at the bottom of the cutter pressing body; a circle of hard alloy is deposited on an annular transition part between the inner wall of the first hole section and the inner wall of the second hole section; the diameter of the second hole section is smaller than the diameter of the ball head part of the ball head screw rod and larger than the diameter of the rod body part of the ball head screw rod; the diameter of the third hole section is larger than that of the second hole section;
the third hole section of the lock nut is flared in a horn shape, and the hole diameter of the third hole section is gradually increased from top to bottom;
the screw rod is made of stainless steel.
Priority Applications (1)
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CN201811185706.4A CN109262380B (en) | 2018-10-11 | 2018-10-11 | Auxiliary processing device for grinding waste hard alloy blade |
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CN201811185706.4A CN109262380B (en) | 2018-10-11 | 2018-10-11 | Auxiliary processing device for grinding waste hard alloy blade |
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CN109262380A CN109262380A (en) | 2019-01-25 |
CN109262380B true CN109262380B (en) | 2023-09-12 |
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CN201811185706.4A Active CN109262380B (en) | 2018-10-11 | 2018-10-11 | Auxiliary processing device for grinding waste hard alloy blade |
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Families Citing this family (2)
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CN113910012B (en) * | 2021-08-19 | 2023-03-24 | 宁波昌晖汽车零部件有限公司 | Tool changing device polishes |
CN116153848B (en) * | 2023-04-23 | 2023-07-04 | 无锡邑文电子科技有限公司 | Lifting mechanism and semiconductor device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103659481A (en) * | 2013-11-29 | 2014-03-26 | 南宁市日建塑料包装有限责任公司 | Cutter grinder |
CN103878647A (en) * | 2012-12-20 | 2014-06-25 | 龙连强 | Efficient machine tool for grinding turning tool |
CN104070424A (en) * | 2014-07-03 | 2014-10-01 | 谭明 | Electric knife sharpener |
CN204235304U (en) * | 2014-09-26 | 2015-04-01 | 江苏省江阴中等专业学校 | Lathe tool sharpening geometric angle controller |
CN107020551A (en) * | 2017-06-09 | 2017-08-08 | 戴杰磨床集团股份有限公司 | A kind of blade grinding machine |
CN107414610A (en) * | 2015-10-29 | 2017-12-01 | 兰如林 | Sharpener |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6786806B2 (en) * | 2003-01-17 | 2004-09-07 | Harold D. Maus, Jr. | Rotary mower blade sharpener |
US9061391B2 (en) * | 2012-10-20 | 2015-06-23 | James W. Wittenborn | Sharpener holder |
-
2018
- 2018-10-11 CN CN201811185706.4A patent/CN109262380B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103878647A (en) * | 2012-12-20 | 2014-06-25 | 龙连强 | Efficient machine tool for grinding turning tool |
CN103659481A (en) * | 2013-11-29 | 2014-03-26 | 南宁市日建塑料包装有限责任公司 | Cutter grinder |
CN104070424A (en) * | 2014-07-03 | 2014-10-01 | 谭明 | Electric knife sharpener |
CN204235304U (en) * | 2014-09-26 | 2015-04-01 | 江苏省江阴中等专业学校 | Lathe tool sharpening geometric angle controller |
CN107414610A (en) * | 2015-10-29 | 2017-12-01 | 兰如林 | Sharpener |
CN107020551A (en) * | 2017-06-09 | 2017-08-08 | 戴杰磨床集团股份有限公司 | A kind of blade grinding machine |
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CN109262380A (en) | 2019-01-25 |
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