CN202621783U - Automatic pin shaft chamfering device - Google Patents
Automatic pin shaft chamfering device Download PDFInfo
- Publication number
- CN202621783U CN202621783U CN 201220304798 CN201220304798U CN202621783U CN 202621783 U CN202621783 U CN 202621783U CN 201220304798 CN201220304798 CN 201220304798 CN 201220304798 U CN201220304798 U CN 201220304798U CN 202621783 U CN202621783 U CN 202621783U
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- chamfering
- feeding
- bearing pin
- baffle plate
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Abstract
The utility model provides an automatic pin shaft chamfering device, which comprises a feeding device, a chamfering device, a drive device and a discharging region, wherein the feeding device is vertical to the chamfering device, the drive device simultaneously drives the feeding device and the chamfering device, and the discharging region is arranged below the axis of the chamfering device. The chamfering device comprises a region A, a region B and a region C, wherein the region A and the region B are arranged on two sides of an axis of the feeding device, the region A is stationary, the region B is movable, and the region C is arranged below the region B; the feeding device comprises a pin shaft blanking region, a feeding region and a baffle plate region; and the drive device comprises a chamfering drive shaft, a chamfering cam, a feeding drive shaft and a feeding cam, and the chamfering drive shaft is connected with the feeding drive shaft through two conical gears with a 45-DEG angle. Due to adopting the automatic pin shaft chamfering device, the chamfering work of a great amount of pin shafts can be automatically completed, about 100 to 120 pin shafts can be chamfered per minute, the production efficiency is greatly improved compared to the manually chamfering way, and the social development trend of energy conservation and emission reduction can be met.
Description
Technical field
The utility model relates to field of machining, particularly a kind of full-automatic bearing pin chamfering equipment.
Background technology
For realizing the transformation of China's mechanical industry " from size to strength ", must break through key foundation part bottleneck.Country, industry and enterprise pay much attention to the development of key foundation part, are that core, technological transformation are means with the autonomous innovation, make great efforts to promote the sound development of key foundation part industry.
At present,, particularly in the chain assembling process, be smooth assembling, improve the yield rate of chain, will carry out chamfered to bearing pin usually in chain production equipment field.Some places are also adopting manually-operated to the chamfer machining of bearing pin; When the bearing pin chamfering is carried out in manually-operated; Even if skilled employee, per minute approximately only can be accomplished the chamfering of 20-30 bearing pin, and not only employee's live load is huge; The quality of product can not get guaranteeing, and is easy to occur neglecting cause security incident.Therefore, artificial bearing pin chamfering is eliminated gradually.
What at present the chamfered of bearing pin generally adopted is alkali erosion frosted method, though the bearing pin effect that also can obtain chamfering after treatment also can realize producing in batches; But because energy consumption is big; Alkaline consumption is high, and noise is big, and the sewage quantity of generation is big; Environment is caused very big pollution, hindered the sound development of industry.
Therefore, how making the chain manufacturing equipment can realize automatic batch production, satisfy the economic constantly needs of development, can adapt to the social orientation of saving energy, lowering energy consumption and reducing pollutants discharge again, is the difficult problem of pendulum in face of whole chain equipment practitioner.
The utility model content
The purpose of the utility model is to provide a kind of production efficiency high, and is safe and reliable and meet the full-automatic bearing pin chamfering Apparatus and method for of energy-saving and emission-reduction requirement.
In order to realize above-mentioned utility model purpose, the technical scheme that the utility model adopts is following:
A kind of full-automatic bearing pin chamfering equipment; It is characterized in that comprise pay-off, facing attachment, drive unit, blanking district, said pay-off is provided with said facing attachment is vertical; Said drive unit drives pay-off and facing attachment simultaneously; Said blanking district is positioned at said facing attachment axis below, wherein
Said facing attachment comprises A district, B district, C district, and said A district and B district are positioned at pay-off center line both sides, and the A district is fixing, and the B district is removable, and said C district is arranged on below, B district;
Said A district comprises: chamfering mould, a distribution axle thimble, spring, end stone, shell; Wherein, said chamfering mould is arranged at a relative end with the B district in the A district shell, and said distribution axle thimble is the T type; Link to each other with the chamfering mould; Said end stone is positioned at the shell other end, and said spring one end withstands promotes the axle thimble, and the other end withstands end stone;
Said B district comprises: chamfering mould, a distribution axle thimble, spring, end stone, shell; Wherein, said chamfering mould is arranged at a relative end with the A district in the B district shell, and said distribution axle thimble is the T type; Link to each other with the chamfering mould; Said end stone is positioned at the shell other end, and said spring one end withstands promotes the axle thimble, and the other end withstands end stone;
Said C district comprises: line slideway, slide block, said B district places on the slide block of C district line slideway.
Further, in above-mentioned full-automatic bearing pin chamfering equipment, said pay-off comprises bearing pin discharging area, feeding district, baffle plate district, wherein,
Said feeding district and baffle plate district are oppositely arranged on same horizontal plane, and said bearing pin discharging area is arranged on top, feeding district, and the bottom surface is parallel with the feeding district;
Said bearing pin discharging area involving vibrations dish, bearing pin roller track, said vibrating disk are positioned at bearing pin roller track top, and said bearing pin roller track bottom is vertical with the feeding district, and top and bottom are at an angle;
Said feeding district comprises: slide block at the bottom of slide block, feeding district second guide rail at the bottom of delivery sheet, feeding panel seat, feeding district first guide rail; Slide block is located on the horizontal guide rail at the bottom of said feeding district second guide rail, and slide block is located at the bottom of feeding district second guide rail on the slide block at the bottom of feeding district first guide rail, and the feeding panel seat is located at the bottom of feeding district first guide rail on the slide block, and delivery sheet is located on the feeding panel seat; Said delivery sheet front end has a recess, can hold a bearing pin;
Said baffle plate district comprises: slide block, spring at the bottom of slide block, baffle plate district second guide rail at the bottom of baffle plate, apron block, baffle plate district first guide rail; Slide block is fixed on the frame at the bottom of said baffle plate district second guide rail, and slide block is located at the bottom of baffle plate district second guide rail on the slide block at the bottom of said baffle plate district first guide rail, and said apron block is located at the bottom of baffle plate district first guide rail on the slide block, and baffle plate is located on the apron block; Said baffle plate front end has a block, can grasp bearing pin with delivery sheet; Said spring one end is fixed on the frame, and the other end withstands baffle plate.
Further, in above-mentioned full-automatic bearing pin chamfering equipment, said drive unit comprises: chamfering driving shaft, chamfering cam, feeding driving shaft, feeding cam, and said chamfering cam is connected with facing attachment, and said feeding cam is connected with pay-off.
Further, in above-mentioned full-automatic bearing pin chamfering equipment, said chamfering driving shaft and feeding driving shaft are orthogonal, through the angular wheel connection of two miter angles.
Use above-mentioned full-automatic bearing pin chamfering equipment can realize full-automatic bearing pin chamfering, comprise the steps:
Step 1: under the drive unit effect, pay-off is delivered to bearing pin on facing attachment A district, the B district chamfering line;
Step 2: under the drive unit effect, the B district moves forward, and bearing pin one end gets into B district chamfering mould;
Step 3:B continues in the district to move ahead, and pushes the bearing pin other end on the A district chamfering mould;
Step 4: under the drive unit effect, pay-off is retreated;
Step 5: drive unit continues to act on the B district, and the B district moves ahead, and the A district is produced pressure, and A district and B district chamfering mould make a concerted effort to compress bearing pin, and bearing pin is carried out chamfering;
Step 6: after the bearing pin chamfering was accomplished, under the drive unit effect, B retreated in the district;
Step 7:A district compression spring promotes the A district and promotes the axle thimble, and B district compression spring promotes the B district and promotes the axle thimble simultaneously;
Promote the axle thimble and eject bearing pin simultaneously in step 8:A district and B district;
Step 9: the chamfering bearing pin falls, falls into the blanking district.
Further, in above-mentioned full-automatic bearing pin chamfering method, said step 1 comprises the steps:
Step 101: open motor, the chamfering driving shaft drives the chamfering cam and rotates;
Step 102: under the angular wheel effect, the feeding driving shaft drives feeding cam and rotates;
Step 103: feeding cam promotes delivery sheet and moves ahead;
Step 104: after delivery sheet is run into baffle plate, grasp bearing pin jointly and continue to move ahead, bearing pin is delivered to assigned address on the chamfering mold shaft line.
Further, in above-mentioned full-automatic bearing pin chamfering method, also comprise the steps:
Step 10: under the drive unit effect, delivery sheet retreats to assigned address, and second bearing pin fallen on the delivery sheet front end recess;
Step 11: feeding cam drives delivery sheet and moves ahead, and repeats above-mentioned chamfering step.
The full-automatic bearing pin chamfering equipment and the chamfering method that use the utility model to provide can be accomplished the chamfering work of a large amount of bearing pins automatically, and per minute can carry out the chamfering of 100-120 bearing pin approximately, and the production efficiency of carrying out chamfering than manual work improves greatly.And the utility model is realized chamfering mechanization, has reduced the danger of personnel operation, and production efficiency is high, and safe and reliable, product quality is protected, and yield rate is high, has practiced thrift social resources greatly, meets the developing direction of conservation-minded society.
Description of drawings
Fig. 1 is sent to sketch map on A district, the B district chamfering line to bearing pin for pay-off.
Fig. 2 is pushed into bearing pin on the A district chamfering mould for the B district moves, and carries out the chamfering sketch map.
Fig. 3 for chamfering accomplish after sketch map.
Fig. 4 is C district and drive unit sketch map.
Fig. 5 is that reference diagram is amplified in delivery sheet end and baffle plate end.
Wherein:
11 ... A district chamfering mould, 12 ... Axle thimble, 13 are promoted by the A district ... A district compression spring, 14 ... A district end stone, 15 ... A district shell;
21 ... B district chamfering mould, 22 ... Axle thimble, 23 are promoted by the B district ... B district compression spring, 24 ... B district end stone, 25 ... B district shell;
31 ... Delivery sheet, 32 ... Block;
41 ... C district line slideway, 42 ... C district slide block;
51 ... Motor, 52 ... The chamfering driving shaft, 53 ... The chamfering cam, 54 ... Feeding cam, 55 ... The feeding driving shaft.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model operation principle is following: delivery sheet is driven by feeding cam, on the line slideway slide block, does moving back and forth, when delivery sheet falls back on backmost; A bearing pin is fallen delivery sheet the place ahead recess, and then, delivery sheet promotes this bearing pin and moves ahead; Utilize the block on opposite to grasp this bearing pin simultaneously, when arriving assigned address, just foremost the time; At this moment, B district (whole slide block) driven by the chamfering cam also, moves forward; The chamfering mould in B district and A district chamfering mould make a concerted effort to compress this bearing pin, and bearing pin gets into chamfering.Then, driven by cam, delivery sheet and B district are retreated, and when falling back on backmost, another bearing pin is fallen the recess in delivery sheet the place ahead, accomplish a work period.Because the chamfering thrust is very big; Bearing pin is stuck on the chamfering mould in A district or B district probably; Compression spring in this moment chamfering mould promotes thimble and ejects bearing pin (in bearing pin is pressed into the chamfering mould time; This compression spring is compressed), the intact bearing pin of chamfering drops in the material-dropping hole of below, and one time chamfering is accomplished.
Wherein, the baffle plate in baffle plate district is fixed on to do on the guide rail slide block and moves back and forth, and the guide rail slide block receives the effect of spring and delivery sheet, and when delivery sheet advanced, baffle plate was pushed back, the compression spring; When delivery sheet was retreated, the baffle plate spring-loaded was stretched out, and the effect of baffle plate is to grasp bearing pin together with delivery sheet, and makes bearing pin accurately navigate to the assigned address chamfering.
B district (whole slide block) is driven by the chamfering cam, and is vertical with the delivery sheet direction of motion.The chamfering cam is installed on the chamfering driving shaft of drive unit, and the angular wheel through two 45 degree becomes an angle of 90 degrees link feeding driving shaft simultaneously, drives feeding cam.According to the design that connects a cam, when feeding arrives assigned address, carry out chamfering.The B district of facing attachment and the delivery sheet of pay-off are linked by a motor-driven, and the A district is fixing, utilizes the thrust in B district to compress bearing pin, utilize mould to form chamfering.The baffle plate of pay-off utilizes telescopic spring to cooperate delivery sheet, and common clamping bearing pin is delivered to assigned address.
The utility model embodiment is just like shown in the accompanying drawing; A kind of full-automatic bearing pin chamfering equipment comprises pay-off, facing attachment, drive unit, blanking district, and said pay-off is provided with said facing attachment is vertical; Said drive unit drives pay-off and facing attachment simultaneously; Said blanking district is positioned at said facing attachment axis below, wherein
Said facing attachment comprises A district, B district, C district, and said A district and B district are positioned at pay-off center line both sides, and the A district is fixing, and the B district is removable, and said C district is arranged on below, B district;
Said A district comprises: chamfering mould 11, a distribution axle thimble 12, spring 13, end stone 14, shell 15; Wherein, said chamfering mould 11 is arranged at a relative end with the B district in the A district shell 15, and said distribution axle thimble 12 is the T type; Link to each other with chamfering mould 11; Said end stone 14 is positioned at shell 15 other ends, and said spring 13 1 ends withstand promotes axle thimble 12, and the other end withstands end stone 14;
Said B district comprises: chamfering mould 21, a distribution axle thimble 22, spring 23, end stone 24, shell 25; Wherein, said chamfering mould 21 is arranged at a relative end with the A district in the B district shell 25, and said distribution axle thimble 22 is the T type; Link to each other with chamfering mould 21; Said end stone 24 is positioned at shell 25 other ends, and said spring 23 1 ends withstand promotes axle thimble 22, and the other end withstands end stone 24;
Said C district comprises: line slideway 41, slide block 42, said B district places on the slide block of C district line slideway.
The full-automatic bearing pin chamfering equipment that embodiment two provides is the further optimization of full-automatic bearing pin chamfering equipment that embodiment one is provided, it is characterized in that said pay-off comprises bearing pin discharging area, feeding district, baffle plate district, wherein,
Said feeding district and baffle plate district are oppositely arranged on same horizontal plane, and said bearing pin discharging area is arranged on top, feeding district, and the bottom surface is parallel with the feeding district;
Said bearing pin discharging area involving vibrations dish, bearing pin roller track, said vibrating disk are positioned at bearing pin roller track top, and said bearing pin roller track bottom is vertical with the feeding district, and top and bottom are at an angle;
Said feeding district comprises: slide block at the bottom of slide block, feeding district second guide rail at the bottom of delivery sheet, feeding panel seat, feeding district first guide rail; Slide block is located on the horizontal guide rail at the bottom of said feeding district second guide rail, and slide block is located at the bottom of feeding district second guide rail on the slide block at the bottom of feeding district first guide rail, and the feeding panel seat is located at the bottom of feeding district first guide rail on the slide block, and delivery sheet is located on the feeding panel seat; Said delivery sheet front end has a recess, can hold a bearing pin;
Said baffle plate district comprises: slide block, spring at the bottom of slide block, baffle plate district second guide rail at the bottom of baffle plate, apron block, baffle plate district first guide rail; Slide block is fixed on the frame at the bottom of said baffle plate district second guide rail, and slide block is located at the bottom of baffle plate district second guide rail on the slide block at the bottom of said baffle plate district first guide rail, and said apron block is located at the bottom of the baffle plate district guide rail on the slide block, and baffle plate is located on the apron block; Said baffle plate front end has a block, can grasp bearing pin with delivery sheet; Said spring one end is fixed on the frame, and the other end withstands baffle plate.
Embodiment three is the further optimization to the full-automatic bearing pin chamfering equipment that provides in the foregoing description; It is characterized in that; Said drive unit comprises: chamfering driving shaft, chamfering cam, feeding driving shaft, feeding cam; Said chamfering cam is connected with facing attachment, and said feeding cam is connected with pay-off.
Further, in above-mentioned full-automatic bearing pin chamfering equipment, said chamfering driving shaft and feeding driving shaft are orthogonal, through the angular wheel connection of two miter angles.
Use above-mentioned full-automatic bearing pin chamfering equipment, can realize the full-automatic chamfering of bearing pin, the utility model embodiment four provides a kind of full-automatic bearing pin chamfering method, it is characterized in that, comprises the steps:
Step 1: as shown in Figure 1, under the effect of drive unit feeding driving shaft, pay-off is delivered to bearing pin on facing attachment A district, the B district chamfering line;
Step 2: under the effect of drive unit chamfering driving shaft, the B district moves forward, and bearing pin one end gets into B district chamfering mould;
Step 3:B continues in the district to move ahead, and pushes the bearing pin other end on the A district chamfering mould;
Step 4: under the effect of drive unit feeding driving shaft, pay-off is retreated;
Step 5: as shown in Figure 2, drive unit chamfering driving shaft continues to act on the B district, and the B district moves ahead, and the A district is produced pressure, and A district and B district chamfering mould make a concerted effort to compress bearing pin, and bearing pin is carried out chamfering;
Step 6: after the bearing pin chamfering was accomplished, under the effect of drive unit chamfering driving shaft, B retreated in the district;
Step 7: as shown in Figure 3, A district compression spring promotes the A district and promotes the axle thimble, and B district compression spring promotes the B district and promotes the axle thimble simultaneously;
Promote the axle thimble and eject bearing pin simultaneously in step 8:A district and B district;
Step 9: the chamfering bearing pin falls, falls into the blanking district.
In above-mentioned full-automatic bearing pin chamfering method, the feeding process is that step 1 comprises the steps:
Step 101: open motor, the chamfering driving shaft drives the chamfering cam and rotates;
Step 102: under the angular wheel effect, the feeding driving shaft drives feeding cam and rotates;
Step 103: feeding cam promotes delivery sheet and moves ahead;
Step 104: delivery sheet and baffle plate grasp bearing pin jointly to be continued to move ahead, and bearing pin is delivered to assigned address on the chamfering mold shaft line.
Further, after the bearing pin chamfering is accomplished, fall into blanking district, below automatically, simultaneously, full-automatic bearing pin feeder equipment is proceeded following step:
Step 10: under the effect of drive unit feeding driving shaft, delivery sheet retreats to assigned address, and second bearing pin fallen on the delivery sheet;
Step 11: feeding cam drives delivery sheet and moves ahead, and repeats above-mentioned chamfering step.
Use above-mentioned full-automatic bearing pin chamfering equipment and chamfering method, can accomplish the chamfering work of a large amount of bearing pins automatically, per minute can carry out the chamfering of 100-120 bearing pin approximately, and the production efficiency of carrying out chamfering than manual work improves greatly.And the utility model is realized chamfering mechanization, has reduced the danger of personnel operation, and production efficiency is high, and safe and reliable, product quality is protected, and yield rate is high, has practiced thrift social resources greatly, meets the developing direction of conservation-minded society.
The preferred embodiment that the above is merely the utility model is not the practical range that is used for limiting the utility model; If do not break away from the spirit and the scope of the utility model, the utility model is made amendment or is equal to replacement, all should be encompassed in the middle of the protection domain of the utility model claim.
Claims (4)
1. full-automatic bearing pin chamfering equipment; It is characterized in that comprise pay-off, facing attachment, drive unit, blanking district, said pay-off is provided with said facing attachment is vertical; Said drive unit drives pay-off and facing attachment simultaneously; Said blanking district is positioned at said facing attachment axis below, wherein
Said facing attachment comprises A district, B district, C district, and said A district and B district are positioned at pay-off center line both sides, and the A district is fixing, and the B district is removable, and said C district is arranged on below, B district;
Said A district comprises: chamfering mould, a distribution axle thimble, spring, end stone, shell; Wherein, said chamfering mould is arranged at a relative end with the B district in the A district shell, and said distribution axle thimble is the T type; Link to each other with the chamfering mould; Said end stone is positioned at the shell other end, and said spring one end withstands promotes the axle thimble, and the other end withstands end stone;
Said B district comprises: chamfering mould, a distribution axle thimble, spring, end stone, shell; Wherein, said chamfering mould is arranged at a relative end with the A district in the B district shell, and said distribution axle thimble is the T type; Link to each other with the chamfering mould; Said end stone is positioned at the shell other end, and said spring one end withstands promotes the axle thimble, and the other end withstands end stone;
Said C district comprises: line slideway, slide block, said B district places on the slide block of C district line slideway.
2. according to the said full-automatic bearing pin chamfering equipment of claim 1, it is characterized in that said pay-off comprises bearing pin discharging area, feeding district, baffle plate district, wherein,
Said feeding district and baffle plate district are oppositely arranged on same horizontal plane, and said bearing pin discharging area is arranged on top, feeding district, and the bottom surface is parallel with the feeding district;
Said bearing pin discharging area involving vibrations dish, bearing pin roller track, said vibrating disk are positioned at bearing pin roller track top, and said bearing pin roller track bottom is vertical with the feeding district, and top and bottom are at an angle;
Said feeding district comprises: slide block at the bottom of slide block, feeding district second guide rail at the bottom of delivery sheet, feeding panel seat, feeding district first guide rail; Slide block is located on the horizontal guide rail at the bottom of said feeding district second guide rail, and slide block is located at the bottom of feeding district second guide rail on the slide block at the bottom of feeding district first guide rail, and the feeding panel seat is located at the bottom of feeding district first guide rail on the slide block, and delivery sheet is located on the feeding panel seat; Said delivery sheet front end has a recess, can hold a bearing pin;
Said baffle plate district comprises: slide block, spring at the bottom of slide block, baffle plate district second guide rail at the bottom of baffle plate, apron block, baffle plate district first guide rail; Slide block is fixed on the frame at the bottom of said baffle plate district second guide rail, and slide block is located at the bottom of baffle plate district second guide rail on the slide block at the bottom of said baffle plate district first guide rail, and said apron block is located at the bottom of baffle plate district first guide rail on the slide block, and baffle plate is located on the apron block; Said baffle plate front end has a block, can grasp bearing pin with delivery sheet; Said spring one end is fixed on the frame, and the other end withstands baffle plate.
3. according to the said full-automatic bearing pin chamfering equipment of claim 1; It is characterized in that; Said drive unit comprises: chamfering driving shaft, chamfering cam, feeding driving shaft, feeding cam, and said chamfering cam is connected with facing attachment, and said feeding cam is connected with pay-off.
4. according to the said full-automatic bearing pin chamfering equipment of claim 3, it is characterized in that said chamfering driving shaft and feeding driving shaft are orthogonal, through the angular wheel connection of two miter angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304798 CN202621783U (en) | 2012-06-27 | 2012-06-27 | Automatic pin shaft chamfering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304798 CN202621783U (en) | 2012-06-27 | 2012-06-27 | Automatic pin shaft chamfering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202621783U true CN202621783U (en) | 2012-12-26 |
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ID=47375026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220304798 Expired - Fee Related CN202621783U (en) | 2012-06-27 | 2012-06-27 | Automatic pin shaft chamfering device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202621783U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717011A (en) * | 2012-06-27 | 2012-10-10 | 太仓椿盟链传动有限公司 | Full-automatic chamfering device and chamfering method of pin roll |
| CN105436282A (en) * | 2015-12-31 | 2016-03-30 | 太仓椿盟链传动有限公司 | Chamfering device of chamfering machine |
| CN105642788A (en) * | 2016-01-05 | 2016-06-08 | 绍兴文理学院 | Automatic chamfering device for square nut and machining method |
-
2012
- 2012-06-27 CN CN 201220304798 patent/CN202621783U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717011A (en) * | 2012-06-27 | 2012-10-10 | 太仓椿盟链传动有限公司 | Full-automatic chamfering device and chamfering method of pin roll |
| WO2014000134A1 (en) * | 2012-06-27 | 2014-01-03 | 太仓椿盟链传动有限公司 | Full-automatic chamfering device and chamfering method of pin shaft |
| CN105436282A (en) * | 2015-12-31 | 2016-03-30 | 太仓椿盟链传动有限公司 | Chamfering device of chamfering machine |
| CN105642788A (en) * | 2016-01-05 | 2016-06-08 | 绍兴文理学院 | Automatic chamfering device for square nut and machining method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20130627 |