CN109773284A - It is a kind of for installing the tooling platform and method of worm screw auxiliary member - Google Patents

It is a kind of for installing the tooling platform and method of worm screw auxiliary member Download PDF

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Publication number
CN109773284A
CN109773284A CN201811638925.3A CN201811638925A CN109773284A CN 109773284 A CN109773284 A CN 109773284A CN 201811638925 A CN201811638925 A CN 201811638925A CN 109773284 A CN109773284 A CN 109773284A
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China
Prior art keywords
auxiliary
worm screw
support base
shores
shored
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Granted
Application number
CN201811638925.3A
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Chinese (zh)
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CN109773284B (en
Inventor
李胜
张婷飞
殷卓迪
沈国芳
施璐平
陈波
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Zhejiang Subo Mechanics Technology Co Ltd
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Zhejiang Subo Mechanics Technology Co Ltd
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Priority to CN201811638925.3A priority Critical patent/CN109773284B/en
Publication of CN109773284A publication Critical patent/CN109773284A/en
Application granted granted Critical
Publication of CN109773284B publication Critical patent/CN109773284B/en
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Abstract

The invention discloses a kind of for installing the tooling platform and method of worm screw auxiliary member, including platform and worm screw, worm screw is externally provided with auxiliary member, auxiliary member includes the subring being set in outside worm screw, subring is equipped with the auxiliary rod of vertical auxiliary ring axis, platform is equipped with the first support base, second support base and Auxiliary support seat, first support base, first is respectively equipped on second support base and Auxiliary support seat to shore, second shores and auxiliary is shored, worm screw be located at first shore and second shore between, first shores and can be rotated about axis in the first support base, second shores and can move in the second support base along axis, second, which shores the direction first in no external force, shores pop-up, auxiliary is shored and can be moved in Auxiliary support seat along axis, the positioning pin parallel with the axis that first shores is additionally provided on platform, auxiliary rod can be with positioning pin contacts.Benefit of the invention is that it is convenient for mounting and clamping, auxiliary member and worm screw installation are completed, the grinding efficiency of worm screw is improved.

Description

It is a kind of for installing the tooling platform and method of worm screw auxiliary member
Technical field
The present invention relates to worm screw manufacturing technology field more particularly to a kind of tooling platform for installing worm screw auxiliary member and Method.
Background technique
The screw thread engagement on surface, demand with higher for the surface accuracy of worm and gear, snail when Worm Wheel System Bar needs to improve the surface accuracy of worm screw by multiple grinding process after surface cutting molding.
For example, application No. is CN2018108858396 in Chinese patent literature, publication date is open on December 7th, 2018 Entitled " a kind of casing assembly worm processing technology " patent of invention, this application discloses a kind of casing assembly worm processing technology, packet Include step: 1) base, forge and made annealing treatment;2) casing assembly worm workpiece is heated to 1200~1400 DEG C, heat preservation 2 by normalizing ~3h;3) after rough turn modulation, half fine turning outer circle, equal made allowance 0.15mm~0.2mm, rough turn helicoid;4) hole end surface in smart car; 5) keyseat;6) half smart car helicoid;7) it clamps, the whole not exclusively whole tooth in screw flight tail portion removes flat thorn less than 1/3 transverse tooth thickness part; 8) it is heat-treated;9) half fine cylindrical;10) helicoid is refined;11) center lapping;12) fine cylindrical;13) helicoid is refined.
Worm screw worm screw in grinding rotates, and grinding wheel straight line in the screw thread of worm screw is walked about.The thread of worm screw in order to prevent By abrasion of grinding wheel, determine that primary face when worm screw installation is very important in worm screw grinding process.In the prior art also not It was found that there is the locating piece of the worm screw grinding of specialized application.
The present invention will design a kind of tooling platform for the installation of worm screw auxiliary member and carry out installing auxiliary part, and then determine worm screw The position of threaded openings when on grinding machine prevents abrasion of grinding wheel thread, improves worm screw grinding efficiency.
Summary of the invention
When the present invention will overcome worm screw in the prior art to be ground, the access site at threaded openings is difficult determining on grinding machine Deficiency, provide it is a kind of for worm screw auxiliary member installation tooling platform and method, can on worm screw installing auxiliary part, lead to The position that auxiliary member determines threaded openings of worm screw when on grinding machine is crossed, abrasion of grinding wheel thread is prevented, improves worm screw grinding effect Rate.
To achieve the goals above, the present invention adopts the following technical scheme that.
A kind of for installing the tooling platform of worm screw auxiliary member, including platform and worm screw, worm screw is externally provided with auxiliary member, auxiliary Part includes the subring being set in outside worm screw, and subring is equipped with the auxiliary rod of vertical auxiliary ring axis, and platform is equipped with first Support base, the second support base and Auxiliary support seat are respectively equipped with first on the first support base, the second support base and Auxiliary support seat Shore, second shores and auxiliary is shored, first shores and shores coaxial line with second and be oppositely arranged, and assists the axis shored and first The axis shored intersects vertically, worm screw be located at first shore and second shore between, first shore can in the first support base around Axis rotation, second shores and can move in the second support base along axis, and second, which shores the direction first in no external force, shores bullet Out, auxiliary is shored and can be moved in Auxiliary support seat along axis, and the positioning parallel with the axis that first shores is additionally provided on platform Pin, auxiliary rod can be with positioning pin contacts.
Subring is set in outside worm screw, is shored by first and is shored clamping worm screw with second, auxiliary, which is shored, can withstand worm screw Screw thread, rotary worm, is shored by auxiliary and is limited with worm thread, determined the screw position of worm screw, pass through position later later Fixed positioning pin is contacted with auxiliary rod, locks subring, then auxiliary rod and the screw position of worm screw determine that, can complete to criticize The production of quantization, it is ensured that the position of threaded openings and auxiliary member on each worm screw to be ground determines, when worm screw is ground, passes through Auxiliary member determines the installation site of worm screw, ensure that abrasive grinding wheel out of, the opening of worm thread enters worm screw screw thread, The thread for preventing abrasion of grinding wheel worm screw improves the grinding efficiency of worm screw.
Preferably, platform is equipped with sliding rail, the axis that sliding rail parallel first is shored, the first support base, the second support base It can be slided along sliding rail with Auxiliary support seat.Facilitate the first support base of installation, the second support base and Auxiliary support seat, the first support Seat, the second support base and Auxiliary support seat can move on the slide rail carries out position adjusting, the convenient progress to different size worm screws Location and installation improves the practicability of tooling platform.
Preferably, being equipped with rack gear on the downside of sliding rail, the lower section of the first support base, the second support base and Auxiliary support seat is distinguished Equipped with rotatable first gear, second gear and equipment gear, first gear, second gear and equipment gear all with rack tooth Shape engagement, the first support base are equipped with the first shaking tray that first gear can be driven to rotate, and the second support base, which is equipped with, can drive the Second shaking tray of two gears rotation, Auxiliary support seat are equipped with the auxiliary shaking tray of energy band dynamic auxiliary gear rotation.
The first shaking tray is rotated, first gear can drive the first support base to move along sliding rail with rack gear cooperation, and rotation second is shaken Disk, second gear can drive the second support base to move along sliding rail with rack gear cooperation, and rotation auxiliary shaking tray, assist tooth wheel and rack is matched It closes energy band dynamic auxiliary support base to move along sliding rail, moving structure is simple, easy to operate.
Preferably, be fixed with link block on the outside of the second support base, link block is equipped with rotatable compression bar, compression bar and One end of link block connection is equipped with cam, and the second outside shored is fixed with the positioning ring that outer diameter shores diameter greater than second, Placement hole is equipped in second support base, the diameter of placement hole and the crest clearance of positioning ring cooperate, and positioning ring is located in placement hole, One end that second support base is shored towards first is equipped with limit neck, and the second one end penetrating mounting holes shored are worn out of limit neck Out, the diameter for limiting neck is less than the diameter of positioning ring, and one end that the second support base is shored back to first is equipped with stop collar, the second top The other end of support stretches through out out of stop collar, is equipped between stop collar and positioning ring and is set in the second reset bullet for shoring outside Spring, second shores from one end that stop collar stretches out equipped with limited block, limited block and cam abutting.
Reset spring pushes positioning ring far from stop collar, it is ensured that second to shore the clamping action shored with first reliable, complete At holding out against for worm screw, compression bar is pressed down on, cam pushes limited block to shore seat far from first, and reset spring is compressed, the second top Support is outer to move, and loosens compression bar after sticking into worm screw, reset spring drives second to shore reset, and second, which shores energy and first, shores folder Tightly, the operating procedure that worm screw clamps is simple and reliable, is conducive to loading and unloading.
Preferably, Auxiliary support seat be equipped with the first auxiliary tank that shore axis parallel, be fixed in auxiliary tank Stock is assisted, the briquetting that can compress auxiliary stock is additionally provided on Auxiliary support seat, briquetting and Auxiliary support seat pass through housing screw It compresses, assists being fixed with the vertical first extension rod for shoring axis on stock, extension rod is tilted upward from auxiliary stock and reached First top shored, positioning pin are located on extension rod.Assist stock fixed in auxiliary tank, the position of positioning pin and extension rod It is fixed, then assist stock and the position of Auxiliary support seat to fix, so that the position that the position of positioning pin and auxiliary are shored just is fixed, The position of auxiliary member is limited by positioning pin, and assist shoring can and worm screw be threadedly engaged positioning, by limit positioning pin with It assists the relative position shored just to define the position of auxiliary member and worm screw, improve auxiliary member assembly and positions the accurate of worm screw Property.
Preferably, positioning pin is equipped with positioning pin cap far from one end of extension rod.Pass through positioning pin cap and detent fit It can assist determining position of the auxiliary member on worm axis, further increase the convenience of auxiliary member installation.
Preferably, the rear of stop collar is equipped with block, block is L shape, and block is connected by screw to stop collar.It is logical Cross block limitation second shore move back stroke, facilitate control cam and limited block contact angle, prevent compression bar to be pressed down Degree improves the stability that compression bar is pushed and resetted.
A method of based on above-mentioned for installing worm screw auxiliary member tooling platform, comprising the following steps:
A, feeding;Auxiliary member is covered on the outside of worm screw, by down-pressed pole, second shores and shore far from first, and worm screw is put into the One shore and second shore between, loosen compression bar, first shores to shore with second and push down worm screw;
B, it calibrates;Auxiliary is shored to worm screw movement, assists the screw thread of end jacking worm screw shored, rotary worm to worm screw is not It is able to rotate, auxiliary shores reciprocating movement several times as confirmation;
C, it locks;Auxiliary member is rotated around worm screw, until auxiliary rod is bonded with positioning pin, locking subring;
D, blanking;By down-pressed pole, second, which shores separate first, shores, and the worm screw assembled and auxiliary member are removed from platform.
The present invention has following usefulness: 1, ensuring that abrasive grinding wheel enters worm screw from the opening of worm thread In screw thread, the thread of abrasion of grinding wheel worm screw is prevented, improves the grinding efficiency of worm screw;2, convenient for mounting and clamping, improve worm screw Production efficiency;3, tooling platform is easy to operate, and cost is low, reduces the cost of worm screw production.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the structural schematic diagram of worm screw and auxiliary member in the present invention.
Fig. 4 is the internal view of the second support base in the present invention.
Fig. 5 is the schematic diagram of internal structure of platform of the present invention.
In figure: 211 additional screws of platform 1 sliding rail, 11 rack gear, 12 worm screw, 2 auxiliary member, 21 subring, 212 auxiliary rod 213 first support bases 3 first shore 31 second support base, 4 link block, 401 compression bar, 402 cam, 403 placement hole 404 limit 405 stop collar of neck, 406 reset spring 407 block 408 second in position shores 41 positioning ring, 411 limited block, 412 Auxiliary support Seat 5 auxiliary tanks 501 auxiliary shores the positioning of 51 auxiliary stock, 60 extension rod, 61 briquetting, 62 housing screw, 63 positioning pin 64 It sells 641 first gear of cap, 71 second gear, 72 equipment gear, 73 first shaking tray, 81 second shaking tray 82 and assists shaking tray 83.
Specific embodiment
The present invention is described further in the following with reference to the drawings and specific embodiments.
It is a kind of for installing the tooling platform of worm screw auxiliary member, including platform 1 and worm screw 2 in Fig. 1 to Fig. 5, outside worm screw 2 Equipped with auxiliary member 21, auxiliary member 21 includes the subring 211 being set in outside worm screw 2, and subring 211 is equipped with vertical subring The auxiliary rod 213 of 211 axis, platform 1 are equipped with the first support base 3, the second support base 4 and Auxiliary support seat 5, the first support base 3, be respectively equipped on the second support base 4 and Auxiliary support seat 5 first shore 31, second shore 41 and auxiliary shore 51, the first top Support 31, second shores 41 and wherein one end for shoring of third is respectively equipped with cone, and the cone angle of cone is towards worm screw 2.First 31 and second to be shored to shore 41 coaxial lines and be oppositely arranged, auxiliary, which shores 51 axis and shores 31 axis with first, to intersect vertically, Worm screw 2 shores 31 and second positioned at first and shores between 41, and first, which shores 31, to be rotated about axis in the first support base 3, the Two, which shore 41, to move in the second support base 4 along axis, second shore 41 and second support base 4 internal diameter clearance fit.The Two, which shore 41, shores 31 pop-ups towards first in no external force, and the outside of the second support base 4 is fixed with link block 401, link block 401 are equipped with rotatable compression bar 402, and one end that compression bar 402 and link block 401 connect is equipped with cam 403, and second shores 41 Outside is fixed with the positioning ring 411 that outer diameter shores 41 diameters greater than second, and placement hole 404, placement are equipped in the second support base 4 The diameter in hole 404 and the crest clearance of positioning ring 411 cooperate, and positioning ring 411 is located in placement hole 404,4 direction of the second support base First one end for shoring 31 is equipped with limit neck 405, and the second one end penetrating mounting holes for shoring 41 are pierced by out of limit neck 405, limit Position neck 405 diameter be less than positioning ring 411 diameter, the second support base 4 back to first shore 31 one end be equipped with stop collar 406, second other end for shoring 41 stretches through out out of stop collar 406, is equipped with and is set between stop collar 406 and positioning ring 411 Second shores the reset spring 407 in 41 outsides, and the rear of stop collar 406 is equipped with block 408, and block 408 is L shape, block 408 It is connected by screw to stop collar 406.Second, which shores 41, is equipped with limited block 412, limited block from one end that stop collar 406 stretches out 412 and cam 403 abut.
Auxiliary is shored 51 and can be moved in Auxiliary support seat 5 along axis, be additionally provided on platform 1 shored with first 31 axis Parallel positioning pin 64, Auxiliary support seat 5 be equipped with the first auxiliary tank 501 that shore 31 axis parallel, it is solid in auxiliary tank 501 It is fixed to be equipped with auxiliary stock 60, the briquetting 62 that can compress auxiliary stock 60, briquetting 62 and Auxiliary support are additionally provided on Auxiliary support seat 5 Seat 5 is compressed by housing screw 63, assists being fixed with the vertical first extension rod 61 for shoring 31 axis, extension rod on stock 60 61 tilt upward from auxiliary stock 60 and reach the first top for shoring 31, and positioning pin 64 is equipped with positioning far from one end of extension rod 61 Sell cap 641.Positioning pin 64 is located on extension rod 61.Auxiliary rod 213 can be contacted with positioning pin 64.Worm screw 2 is fixed on first and shores 31 and second shore between 41, and the side of subring 211 is equipped with additional screws 212, shore 51 by auxiliary and determine 2 screw thread of worm screw Behind position, rotation subring 211 is contacted to auxiliary rod 213 with positioning pin 64, tightens the additional screws 212 of 211 side of subring The assembly of auxiliary member 21 can be completed, install convenient is efficient.
Platform 1 is equipped with sliding rail 11, and sliding rail 11 parallel first shores 31 axis, the first support base 3, the second support base 4 It can be slided along sliding rail 11 with Auxiliary support seat 5.Rack gear 12, the first support base 3, the second support base 4 and auxiliary are equipped on the downside of sliding rail 11 That helps support base 5 is respectively arranged below with rotatable first gear 71, second gear 72 and equipment gear 73, first gear 71, Second gear 72 and equipment gear 73 are all engaged with 12 tooth form of rack gear, and the first support base 3, which is equipped with, can drive 71 turns of first gear The first dynamic shaking tray 81, the second support base 4 are equipped with the second shaking tray 82 that second gear 72 can be driven to rotate, Auxiliary support seat 5 It is equipped with the auxiliary shaking tray 83 that energy band dynamic auxiliary gear 73 rotates.
A method of based on above-mentioned for installing worm screw auxiliary member tooling platform, comprising the following steps:
A, feeding;By 21 sets of auxiliary member in 2 outside of worm screw, by down-pressed pole 402, second, which shores 41, shores 31 far from first, by snail Bar 2, which is put into first and shores 31 and second, to be shored between 41, loosens compression bar 402, and first, which shores 31 and second, shores 41 and push down snail Bar 2;
B, it calibrates;Auxiliary is shored 51 to the movement of worm screw 2, auxiliary shores the screw thread of 51 end jacking worm screw 2, rotary worm 2 It is not able to rotate to worm screw 2, auxiliary shores 51 reciprocating movements several times as confirmation;
C, it locks;Auxiliary member 21 is rotated around worm screw 2, until auxiliary rod 213 is bonded with positioning pin 64, locks subring 211;
D, blanking;By down-pressed pole 402, second, which shores 41, shores 31 far from first, by the worm screw 2 assembled and auxiliary member 21 from flat Platform 1 is removed.

Claims (8)

1. a kind of for installing the tooling platform of worm screw auxiliary member, characterized in that including platform and worm screw, worm screw is externally provided with auxiliary Part, auxiliary member include the subring being set in outside worm screw, and subring is equipped with the auxiliary rod of vertical auxiliary ring axis, sets on platform There are the first support base, the second support base and Auxiliary support seat, is set respectively on the first support base, the second support base and Auxiliary support seat There is first to shore, second shores and auxiliary is shored, first shores and shores coaxial line with second and be oppositely arranged, and assists the axis shored The axis shored with first intersects vertically, worm screw be located at first shore and second shore between, first shore can first support It is rotated about axis in seat, second shores and can move in the second support base along axis, and second shores in no external force towards first Pop-up is shored, auxiliary is shored and can be moved in Auxiliary support seat along axis, is additionally provided on platform parallel with the axis that first shores Positioning pin, auxiliary rod can with positioning pin contacts.
2. according to claim 1 a kind of for installing the tooling platform of worm screw auxiliary member, characterized in that on the platform Equipped with sliding rail, the axis that sliding rail parallel first is shored, the first support base, the second support base and Auxiliary support seat can be sliding along sliding rail It is dynamic.
3. according to claim 2 a kind of for installing the tooling platform of worm screw auxiliary member, characterized in that under the sliding rail Side is equipped with rack gear, and the first support base, the second support base and Auxiliary support seat are respectively arranged below with rotatable first gear, the Two gears and equipment gear, first gear, second gear and equipment gear are all engaged with rack gear tooth form, and the first support base is equipped with The first shaking tray that first gear can be driven to rotate, the second support base is equipped with the second shaking tray that second gear can be driven to rotate, auxiliary Support base is helped to be equipped with the auxiliary shaking tray of energy band dynamic auxiliary gear rotation.
4. according to claim 1 a kind of for installing the tooling platform of worm screw auxiliary member, characterized in that described second Link block is fixed on the outside of support seat, link block is equipped with rotatable compression bar, and one end that compression bar is connected with link block is equipped with convex Wheel, the second outside shored are fixed with the positioning ring that outer diameter shores diameter greater than second, are equipped with placement hole in the second support base, The diameter of placement hole and the crest clearance of positioning ring cooperate, and positioning ring is located in placement hole, and the second support base is shored towards first One end be equipped with limit neck, the second one end penetrating mounting holes shored from limit neck in be pierced by, limit neck diameter be less than positioning The diameter of ring, one end that the second support base is shored back to first are equipped with stop collar, and second other end shored is worn out of stop collar It stretches out, is equipped between stop collar and positioning ring and is set in the second reset spring for shoring outside, second shores from stop collar stretching One end be equipped with limited block, limited block and cam abut.
5. according to claim 1 or 2 or 3 or 4 a kind of for installing the tooling platform of worm screw auxiliary member, characterized in that The Auxiliary support seat be equipped with the first auxiliary tank that shore axis parallel, be fixed with auxiliary stock in auxiliary tank, assist It is additionally provided with the briquetting that can compress auxiliary stock, briquetting and Auxiliary support seat on support base to compress by housing screw, assists stock On be fixed with the vertical first extension rod for shoring axis, extension rod tilted upward from auxiliary stock reach first shore it is upper Side, positioning pin are located on extension rod.
6. according to claim 5 a kind of for installing the tooling platform of worm screw auxiliary member, characterized in that the positioning pin One end far from extension rod is equipped with positioning pin cap.
7. according to claim 4 a kind of for installing the tooling platform of worm screw auxiliary member, characterized in that the stop collar Rear be equipped with block, block is L shape, and block is connected by screw to stop collar.
8. a kind of method for installing worm screw auxiliary member tooling platform based on the claims 1 to 7, characterized in that packet Include following steps:
A, feeding;Auxiliary member is covered on the outside of worm screw, by down-pressed pole, second shores and shore far from first, and worm screw is put into the One shore and second shore between, loosen compression bar, first shores to shore with second and push down worm screw;
B, it calibrates;Auxiliary is shored to worm screw movement, assists the screw thread of end jacking worm screw shored, rotary worm to worm screw is not It is able to rotate, auxiliary shores reciprocating movement several times as confirmation;
C, it locks;Auxiliary member is rotated around worm screw, until auxiliary rod is bonded with positioning pin, locking subring;
D, blanking;By down-pressed pole, second, which shores separate first, shores, and the worm screw assembled and auxiliary member are removed from platform.
CN201811638925.3A 2018-12-29 2018-12-29 Tool platform and method for mounting worm auxiliary part Active CN109773284B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811638925.3A CN109773284B (en) 2018-12-29 2018-12-29 Tool platform and method for mounting worm auxiliary part

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Application Number Priority Date Filing Date Title
CN201811638925.3A CN109773284B (en) 2018-12-29 2018-12-29 Tool platform and method for mounting worm auxiliary part

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CN109773284A true CN109773284A (en) 2019-05-21
CN109773284B CN109773284B (en) 2020-05-22

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5857814A (en) * 1995-10-31 1999-01-12 Jang; Kwan Soon Apparatus for controlling tapping-drilling machine
CN2771812Y (en) * 2005-03-18 2006-04-12 许晓华 Assisting tool set for three-needle method measuring worm distance
CN2907995Y (en) * 2006-05-18 2007-06-06 许晓华 Grinding milling machine for processing worm and screw
CN102328137A (en) * 2011-01-23 2012-01-25 林瑞荣 Automatic machining mechanism for worm thread
CN204339067U (en) * 2014-11-27 2015-05-20 格林精密部件(苏州)有限公司 For skiver's assembling structure of worm shaft
CN108127318A (en) * 2017-12-30 2018-06-08 安徽大昌科技股份有限公司 A kind of vehicle right and left side-wall inner-plate forepart unit fixture
CN108581077A (en) * 2018-07-23 2018-09-28 重庆大学 Planar double enveloping worm flank of tooth double-side grinding lathe based on the fixed centre of gyration
CN209425181U (en) * 2018-12-29 2019-09-24 浙江速博机械科技有限公司 A kind of mounting platform of worm screw auxiliary member

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5857814A (en) * 1995-10-31 1999-01-12 Jang; Kwan Soon Apparatus for controlling tapping-drilling machine
CN2771812Y (en) * 2005-03-18 2006-04-12 许晓华 Assisting tool set for three-needle method measuring worm distance
CN2907995Y (en) * 2006-05-18 2007-06-06 许晓华 Grinding milling machine for processing worm and screw
CN102328137A (en) * 2011-01-23 2012-01-25 林瑞荣 Automatic machining mechanism for worm thread
CN204339067U (en) * 2014-11-27 2015-05-20 格林精密部件(苏州)有限公司 For skiver's assembling structure of worm shaft
CN108127318A (en) * 2017-12-30 2018-06-08 安徽大昌科技股份有限公司 A kind of vehicle right and left side-wall inner-plate forepart unit fixture
CN108581077A (en) * 2018-07-23 2018-09-28 重庆大学 Planar double enveloping worm flank of tooth double-side grinding lathe based on the fixed centre of gyration
CN209425181U (en) * 2018-12-29 2019-09-24 浙江速博机械科技有限公司 A kind of mounting platform of worm screw auxiliary member

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