CN112496809B - Clamping device and method for processing linear groove of screw part - Google Patents

Clamping device and method for processing linear groove of screw part Download PDF

Info

Publication number
CN112496809B
CN112496809B CN202011406018.3A CN202011406018A CN112496809B CN 112496809 B CN112496809 B CN 112496809B CN 202011406018 A CN202011406018 A CN 202011406018A CN 112496809 B CN112496809 B CN 112496809B
Authority
CN
China
Prior art keywords
screws
clamping
groove
screw
mounting hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202011406018.3A
Other languages
Chinese (zh)
Other versions
CN112496809A (en
Inventor
王小忠
龚腾蛟
刘超
龚和生
陈小华
张亚
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.)
Guizhou Aerospace Fenghua Precision Equipment Co Ltd
Original Assignee
Guizhou Aerospace Fenghua Precision Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guizhou Aerospace Fenghua Precision Equipment Co Ltd filed Critical Guizhou Aerospace Fenghua Precision Equipment Co Ltd
Priority to CN202011406018.3A priority Critical patent/CN112496809B/en
Publication of CN112496809A publication Critical patent/CN112496809A/en
Application granted granted Critical
Publication of CN112496809B publication Critical patent/CN112496809B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means

Abstract

The invention provides a clamping device and a clamping method for processing a linear groove of a screw part, wherein the clamping device comprises a clamping base, 1-2 rows of mounting holes are processed on the front surface of the clamping base along the vertical direction, a slit groove is formed in the middle of each mounting hole, a transition groove is formed in one side of each mounting hole, which is close to the side surface of the clamping base, a threaded hole is formed in the side surface of the clamping base from the transition groove in a penetrating manner, and a compression screw is arranged in each threaded hole. The method comprises the following steps: the screws are inserted into the mounting holes of the clamping base in a row, the compression screws are screwed in to compress the elastic clamping pieces, so that the elastic clamping pieces are close to the screws to be compressed, and simultaneously, the non-uniform deformation is generated to compress all the screws. The invention has simple and convenient operation and small labor intensity of workers; 1-2 rows of screws can be clamped at one time, and the machining efficiency is improved by more than one time; the processing cost is reduced, and the yield is improved; the straight groove is symmetrical relative to the axial center, and the product quality is improved.

Description

Clamping device and method for processing linear groove of screw part
Technical Field
The invention relates to the technical field of screw linear groove machining, in particular to a clamping device and a clamping method for linear groove machining of screw parts.
Background
The processing method of the screw straight-line groove is generally three, one is direct molding of a die, one is processing molding of a milling machine, and the other is processing molding of linear cutting. The die is directly formed, the processing speed is very high, the efficiency is very high, the cost is relatively low, but the defect is that the two sides of the straight groove can generate an external splayed shape, and the straight groove is not smooth; the straight groove processed and formed by the milling machine and the linear cutting machine is flat and smooth, two sides of the straight groove are not provided with an external splayed shape, but the straight groove needs to be clamped by a clamping device during processing, otherwise, the straight groove cannot be processed. The clamping mode mainly has that the bench vice presss from both sides tightly, the three-jaw chuck presss from both sides tightly, the clamp plate compresses tightly, when adopting the bench vice to press from both sides tightly, the three-jaw chuck presss from both sides tightly, once only can process a part, the clamping is frequent, and efficiency is extremely low, and workman intensity of labour is big, therefore the processing cost is higher, and the clamp force is difficult to control moreover, the condition that the screw thread was destroyed appears when the clamp force was too big easily, leads to scrapping, and the smaller screw is difficult to the clamping more.
When the pressing plate is adopted for pressing, for example, as shown in fig. 3, the upper die 11 and the lower die 10 are adopted for closing and clamping, a row of positioning holes 12 are formed between the upper die 11 and the lower die 10 for clamping screws, and the clamping efficiency is higher than that of the former two. However, the diameters of the screws have certain errors, and the clamping positions are different, so that the screws with larger diameters are easy to be clamped, the screws with smaller diameters are loosened, the processing of the straight-line groove is not facilitated, the processed finished product and the semi-finished product are mixed together, and even the screw threads with larger diameters can be damaged; secondly, the center of the positioning hole generates certain central symmetry deviation in the process of closing up and down, so that the symmetry degree of the milled straight-line groove relative to the axis center has certain deviation; and only one row of screws can be clamped, so that the operation is inconvenient, and the smaller screws are difficult to clamp.
Disclosure of Invention
In order to solve the technical problem, the invention provides a clamping device and a clamping method for processing a linear groove of a screw part.
The invention is realized by the following technical scheme.
The invention provides a clamping device for processing a linear groove of a screw part, which comprises a clamping base, wherein 1-2 rows of mounting holes are processed in the front of the clamping base along the vertical direction, a gap groove with the thickness of 0.3-0.8 mm is formed in the middle of each mounting hole, transition grooves are formed in the front of the clamping base corresponding to the mounting holes in parallel, the transition grooves are positioned on one side, close to the side face of the clamping base, of each mounting hole, an elastic clamping piece is formed between each transition groove and each mounting hole, threaded holes are formed in the clamping base in a penetrating mode from each transition groove to the side face of the clamping base, the threaded holes are arranged along the vertical direction, and compression screws are arranged in the threaded holes.
When the compression screw is screwed in, the compression screw compresses the elastic clamping piece from different positions, the elastic clamping piece generates uneven deformation while compressing the screw, and the gap between the screw with smaller diameter and the mounting hole caused by errors is eliminated, so that all screws are clamped.
The tightening force of the compression screw is not sufficient to break the screw thread.
The width of the slit groove is 0.5 mm.
The depth of the slit groove and the transition groove is larger than that of the mounting hole.
The depth of the mounting hole is determined according to the length of the processed screw, so that the bottom surface of the straight groove after the straight groove is processed is higher than the plane of the clamping base.
And each compression screw is arranged in the middle of the distribution line of the corresponding 3-4 mounting holes.
The lowest axial projection profile of the threaded hole does not exceed the bottom of the mounting hole.
The length of the threaded hole is not less than 8 mm.
Each row of the mounting holes is 10-18.
The invention also provides a clamping method for processing the linear groove of the screw part, which comprises the following steps:
the method comprises the steps of inserting screws into mounting holes of a clamping base in a row, arranging a slit groove in the middle of the mounting holes, enabling one side of each mounting hole to be an elastic clamping piece and the other side of each mounting hole to be a fixing part, extruding the elastic clamping pieces from different point positions along the arrangement direction of the screws, enabling the elastic clamping pieces to approach and compress the screws, and generating uneven deformation at the same time.
The elastic clamping pieces are extruded from different points by adopting a plurality of compression screws to jack the elastic clamping pieces from different points, and the screwing-in of the compression screws is controlled by adopting a torque wrench.
The invention has the beneficial effects that:
compared with the prior art, the invention has the following advantages: (1) the invention has simple and convenient operation, can clamp the small screw conveniently, and has small labor intensity; (2) 1-2 rows of screws can be clamped at one time, all the screws are clamped tightly, and the whole machining can be finished by one-time feeding, so that the situation that finished products and semi-finished products are mixed together can not occur, and compared with the prior art, the machining efficiency is improved by more than one time; (3) the processing cost is reduced, the damage to the screw thread caused by overlarge clamping force can be prevented, and the yield is improved; (4) the screws clamped at each time are all drawn close to the same direction of the mounting hole uniformly, and the milled straight-line grooves are symmetrical relative to the center of the shaft, so that deviation is avoided, and the product quality is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic structural view of an upper die and a lower die in the prior art.
In the figure: 1-clamping a base; 2-mounting holes; 3-a slot; 4-a transition groove; 5-a compression screw; 6-threaded hole.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in FIGS. 1-2, the structure of the present invention is schematically illustrated:
the invention provides a clamping device for processing a linear groove of a screw part, which comprises a clamping base 1, wherein 1-2 rows of mounting holes 2 are processed on the front surface of the clamping base 1 along the vertical direction, a 0.3-0.8 mm gap groove 3 is formed in the middle of each mounting hole 2, transition grooves 4 are formed in the front surface of the clamping base 1 in parallel corresponding to the mounting holes 2, the transition grooves 4 are positioned on one side of the mounting holes 2 close to the side surface of the clamping base 1, an elastic clamping sheet is formed between the transition grooves 4 and the mounting holes 2, threaded holes 6 are formed in the clamping base 1 from the transition grooves 4 in a penetrating mode, the threaded holes 6 are vertically arranged, and compression screws 5 are arranged in the threaded holes 6.
When the linear groove of the screw is machined, the screw is firstly inserted into the mounting hole 2, then the compression screw 5 is screwed, the elastic clamping piece moves towards the screw, the slit groove 3 contracts, the screw is clamped, the clamping base 1 is clamped on a bench vice, the milling machining and the linear cutting machining of the linear groove can be carried out, and the machining of a plurality of parts can be completed by one-time feeding. Because the elastic clamping piece can be deformed, the compression screw 5 compresses the elastic clamping piece from different positions, so that screws at all hole positions can be clamped, the screws with larger diameters cannot be damaged due to large clamping force, and in addition, the maximum shrinkage degree of the mounting hole 2 can be limited by the slit groove 3, so that the screws are protected. The invention can be used for processing parts such as screws, studs, countersunk screws and the like.
Therefore, the invention has simple and convenient operation, can clamp the small screw conveniently, and has small labor intensity; 1-2 rows of screws can be clamped at one time, all the screws are clamped tightly, and the whole machining can be finished by one-time feeding, so that the situation that finished products and semi-finished products are mixed together can not occur, and compared with the prior art, the machining efficiency is improved by more than one time; the processing cost is reduced, the damage to the screw thread caused by overlarge clamping force can be prevented, and the yield is improved; the screws clamped at each time are all drawn close to the same direction of the mounting hole 2 consistently, and the milled straight grooves are symmetrical relative to the center of the shaft, so that deviation is avoided, and the product quality is improved.
When the compression screw 5 is screwed in, the compression screw compresses the elastic clamping piece from different positions, the elastic clamping piece generates uneven deformation while compressing the screw, the gap between the screw with smaller diameter and the mounting hole 2 caused by errors is eliminated, and all the screws are clamped.
The tightening force of the compression screw 5 is not sufficient to break the screw thread.
The width of the slot 3 is 0.5 mm. The screw clamping device is convenient to clamp the screw, limits the movement of the elastic pressing sheet, protects the screw from being damaged, and is most suitable for processing small screws with specifications of M1.6, M2, M2.5 and the like.
The depth of the slit groove 3 and the transition groove 4 is larger than that of the mounting hole 2. The elastic pressing piece is convenient to push, and the clamping difficulty is reduced.
The depth of the mounting hole 2 is determined according to the length of the processed screw, so that the bottom surface of the straight groove after the straight groove is processed is higher than the plane of the clamping base 1. The cutter and the clamping base 1 are prevented from interfering, and the clamping base 1 and the cutter are prevented from being damaged.
Each compression screw 5 is arranged in the middle of the distribution line of the corresponding 3-4 mounting holes 2. By this arrangement it is ensured that the compression screws 5 are of a size sufficient to push the resilient clamping piece without damaging the threads thereof, while the deformation of the clamping piece is sufficient to clamp each screw.
The axial projection profile of the threaded hole 6 does not exceed the bottom of the mounting hole 2 at the lowest. The position of the mounting hole 2 is ensured to be acted by the pressing force, and the force required for screwing the pressing screw 5 and the counter force of the elastic pressing sheet to the pressing screw 5 are reduced.
The length of the threaded hole 6 is not less than 8 mm. The mounting plate of the compression screw 5 is ensured to have enough rigidity, and the compression screw 5 has enough stress area, so that the clamping looseness and the damage to the compression screw 5 are avoided.
Each row of the mounting holes 2 comprises 10-18. The clamping operation time and the device size at each time can be conveniently controlled, so that the device can be stably clamped on the bench vice.
The invention also provides a clamping method for processing the linear groove of the screw part, which comprises the following steps:
the method comprises the steps of inserting screws into mounting holes 2 of a clamping base 1 in a row, arranging a gap groove 3 in the middle of each mounting hole 2, enabling one side of each mounting hole 2 to be an elastic clamping piece and the other side of each mounting hole to be a fixing part, extruding the elastic clamping pieces from different point positions along the arrangement direction of the screws, enabling the elastic clamping pieces to approach and compress the screws, and generating uneven deformation at the same time, enabling the elastic clamping pieces to protrude towards the mounting holes 2 at the positions of the screws with small diameters to eliminate gaps between the screws and the mounting holes 2, stopping extruding the elastic clamping pieces when all the screws are clamped, keeping the existing pressure, and clamping the clamping base 1 on a fixing machine to process a straight groove.
The elastic clamping pieces are extruded from different points by adopting a plurality of compression screws 5 to jack the elastic clamping pieces from different points, and the screwing-in of the compression screws 5 is controlled by adopting a torque wrench.

Claims (1)

1. A clamping method for processing a linear groove of a screw part is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
inserting screws into mounting holes (2) of a clamping base (1) in a row, wherein the middle of each mounting hole (2) is provided with a gap groove (3), one side of each mounting hole (2) is provided with an elastic clamping piece, the other side of each mounting hole is provided with a fixing part, then the elastic clamping pieces are extruded from different points along the arrangement direction of the screws, the elastic clamping pieces are close to and pressed against the screws and are unevenly deformed, the elastic clamping pieces protrude towards the mounting holes (2) at the positions of the screws with smaller diameters, gaps between the screws and the mounting holes (2) are eliminated, when all the screws are clamped, the elastic clamping pieces are stopped to be extruded, the existing pressure is kept, and the clamping base (1) is clamped on a fixing machine to be capable of machining a straight groove;
the front surface of the clamping base (1) is provided with transition grooves (4) in parallel corresponding to the mounting holes (2), the elastic clamping piece is positioned between the transition grooves (4) and the mounting holes (2), threaded holes (6) are formed in the clamping base (1) in a penetrating mode from the transition grooves (4) to the side faces of the clamping base, the threaded holes (6) are vertically arranged, and compression screws (5) are arranged in the threaded holes (6);
the elastic clamping pieces are pressed from different positions by a plurality of compression screws (5), and the screwing of the compression screws (5) is controlled by a torque wrench; the tightening force of the compression screw (5) is not enough to damage the screw thread;
the width of the slit groove (3) is 0.5 mm;
the depth of the slit groove (3) and the transition groove (4) is greater than that of the mounting hole (2);
the depth of the mounting hole (2) is determined according to the length of the processed screw, so that the bottom surface of the straight groove after the straight groove is processed is higher than the plane of the clamping base (1);
each compression screw (5) is arranged in the middle of the distribution line of the corresponding 3-4 mounting holes (2);
the lowest axial projection profile of the threaded hole (6) does not exceed the bottom of the mounting hole (2).
CN202011406018.3A 2020-12-05 2020-12-05 Clamping device and method for processing linear groove of screw part Active CN112496809B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011406018.3A CN112496809B (en) 2020-12-05 2020-12-05 Clamping device and method for processing linear groove of screw part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011406018.3A CN112496809B (en) 2020-12-05 2020-12-05 Clamping device and method for processing linear groove of screw part

Publications (2)

Publication Number Publication Date
CN112496809A CN112496809A (en) 2021-03-16
CN112496809B true CN112496809B (en) 2021-11-30

Family

ID=74968475

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011406018.3A Active CN112496809B (en) 2020-12-05 2020-12-05 Clamping device and method for processing linear groove of screw part

Country Status (1)

Country Link
CN (1) CN112496809B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104526397A (en) * 2014-12-03 2015-04-22 重庆红旗缸盖制造有限公司 Decompression shaft head face milling clamping mechanism
CN204770392U (en) * 2015-07-16 2015-11-18 贵州航太精密制造有限公司 A countersunk screw word groove processingequipment
CN109365886A (en) * 2018-11-21 2019-02-22 福建兵工装备有限公司 Screw, screw head flat recess continous way slotter
CN208840916U (en) * 2018-09-26 2019-05-10 东莞市超科五金电子有限公司 A kind of four-axis fixture of handle retainer plate

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2498265T3 (en) * 2010-03-02 2014-09-24 Grob-Werke Gmbh & Co. Kg Machining machine
CN108672733A (en) * 2018-04-19 2018-10-19 中信戴卡股份有限公司 A kind of fixture wheel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104526397A (en) * 2014-12-03 2015-04-22 重庆红旗缸盖制造有限公司 Decompression shaft head face milling clamping mechanism
CN204770392U (en) * 2015-07-16 2015-11-18 贵州航太精密制造有限公司 A countersunk screw word groove processingequipment
CN208840916U (en) * 2018-09-26 2019-05-10 东莞市超科五金电子有限公司 A kind of four-axis fixture of handle retainer plate
CN109365886A (en) * 2018-11-21 2019-02-22 福建兵工装备有限公司 Screw, screw head flat recess continous way slotter

Also Published As

Publication number Publication date
CN112496809A (en) 2021-03-16

Similar Documents

Publication Publication Date Title
KR101996076B1 (en) Apparatus and method for manufacturing SUS cap nut by cold forging
CN112496809B (en) Clamping device and method for processing linear groove of screw part
CN214292034U (en) Clamping device for processing linear groove of screw part
CN211939902U (en) Multi-valve-rod opposite-edge milling clamp
CN209021671U (en) A kind of fixture of precision rod parts fixation
CN102039344A (en) Detachable die
CN111015282B (en) Finish machining method for large-tolerance part
CN109877701B (en) Tool for grinding laminated packaging circuit module
CN203664876U (en) Wire cutting machining device
CN112935110A (en) Machine tool stability adjusting and controlling device
CN111015300A (en) Quick fixing device of clamp plate spare
CN210413612U (en) Clamp for cutting length of guide nail in batches
CN210755688U (en) Keyway linear cutting divides well frock fast
CN213889102U (en) Section bar milling frock
CN212238950U (en) Medical tweezers piece beveler processingequipment
CN208961526U (en) A kind of processing of curved surface inclined hole clamps and positioning device
CN211759045U (en) Grooving tool
CN212735040U (en) Lateral clamping device
CN210790030U (en) Mould of numerical control lathe finish machining thin disc class work piece
CN210255186U (en) Milling machine processing tool clamp
CN216503989U (en) Mirror surface grinding machine face trimming fixture
CN216682410U (en) Carbon fiber cardboard processing frock
CN214443643U (en) Special jig for linear cutting
CN210388386U (en) Special grooving tool for grooving screw
CN217701500U (en) Tool for milling cambered surface of engine adjusting sheet

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant