CN202606900U - Metal scrap sample turning tool for horizontal lathe - Google Patents
Metal scrap sample turning tool for horizontal lathe Download PDFInfo
- Publication number
- CN202606900U CN202606900U CN 201220247531 CN201220247531U CN202606900U CN 202606900 U CN202606900 U CN 202606900U CN 201220247531 CN201220247531 CN 201220247531 CN 201220247531 U CN201220247531 U CN 201220247531U CN 202606900 U CN202606900 U CN 202606900U
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- tool
- multidiameter
- spiral shell
- metal fillings
- sample car
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- Withdrawn - After Issue
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- 210000000078 claw Anatomy 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 19
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- 229910000997 High-speed steel Inorganic materials 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 7
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- 238000003754 machining Methods 0.000 abstract description 6
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- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
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- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
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- 239000010962 carbon steel Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model relates to a metal scrap sample turning tool for a horizontal lathe. The metal scrap sample turning tool for the horizontal lathe comprises a tool body (3), an end cover (2), a tool holder assembly (4) and a material container (5). The tool body (3) comprises a base seat (3a), wherein the base seat is composed of a lantern ring (3a-1a) and a stepped shaft (3a-1b), two deep-groove ball bearings (3c) are arranged on the outer circumference of the stepped shaft in sleeved mode, an adjusting ring (3b) is arranged on an outer periphery of each of the deep-groove ball bearings, three clamping grooves (3a-1c) are arranged at a shaft end of the stepped shaft, and an adjusting screw disc (3h) with end face threads are arranged at an end of the stepped shaft in sleeved mode. The adjusting screw disc is connected with the adjusting rings, a screw disc clamping claw turret (3h) is mounted in each of the three clamping grooves, and screw threads are arranged on the rear end surface of each of the screw disc clamping claw turret. When the adjusting screw disc rotates, the three screw disc clamping claw turrets can synchronously expand and contract along the radial direction of the three clamping grooves. When the metal scrap sample turning tool for the horizontal lathe is used for machining scrap samples, blanking crushing performance can be significantly strengthened, the particle size can be refined, machining quality is optimized, purity of the scrap samples can be guaranteed, and requirements of experimental analysis are met.
Description
Technical field
The utility model relates to horizontal lathe and uses turning cutting tool, refers in particular to, and is applicable to process to produce the turning cutting tool of chemical analysis with metal fillings appearance.The metal fillings appearance that this turning cutting tool is produced can be applicable to each metalloid material elemental composition chemical analysis field.
Background technology
Chemical analysis is used metal fillings appearance, is sample kind commonly used when the finished product metal material is implemented constituent content analysis.In order not influence the accuracy of experimental analysis, need guarantee the pure free from admixture of collected metallic particles in the process; And the trimmed size of unlike material there is strict regulation: the thickness≤0.2mm of carbon steel, length≤1mm; Average grain diameter≤the 0.01mm of non-ferrous metal.Preparation method in the use technology at present is many to be main with the high rotating speed of regular turning tool, low amount of feeding turning; Owing to adopt one metal shaft class sample to be carried out turning to lathe tool; That is processed has a metal fillings appearance chip breaking ability, is easy to generate long paper shape appearance bits, and this bits appearance is closed the experimental analysis requirement owing to off-gauge; Must cut off with scissors again and carry out the second-time breakage processing to meet the regulation of sample, so working (machining) efficiency is low; And level is splashed behind the metallic particles blanking after the processing, causes and collects difficulty, and finished product purity also can't be guaranteed, and has had a strong impact on the accuracy of sample analysis.
The utility model content
The utility model technical problem to be solved is to provide a kind of horizontal lathe with metal fillings sample car sharpener tool, and the metal fillings appearance that it was processed is when guaranteeing that quality and precision meet experimental analysis and require, and working (machining) efficiency improves greatly.
The utility model technical problem to be solved is realized by following technical scheme:
A kind of horizontal lathe is characterized in that with metal fillings sample car sharpener tool:
Comprise cutter body, end cap, handle of a knife assembly and feeding dish;
Said cutter body comprises pedestal; Said pedestal is made up of the collar and the multidiameter that is installed in the collar one end, has the gases at high pressure pipe joint on the said collar, is arranged with two deep groove ball bearings on the said multidiameter cylindrical side by side; The outer ring of two deep groove ball bearings is equipped with adjustable ring; The axle head of said multidiameter has 3, and multidiameter inside has a cavity along the radially equally distributed draw-in groove of end face, and the axle head center of multidiameter has the slotted eye that is connected with cavity; The sheathed adjusting spiral shell dish in the termination of multidiameter with end-face helical; Said adjusting spiral shell dish is connected with adjustable ring, in 3 draw-in grooves the spiral shell dish claw knife rest that rear end face has screw thread is installed respectively, and the screw thread of said spiral shell dish claw knife rest matches with the end-face helical of regulating the spiral shell dish;
Said end cap is fixed on the axle head of multidiameter, and said end cap middle part has the opening that is complementary with multidiameter termination shape, offers on the end cap and the corresponding radial slot of draw-in groove;
Said handle of a knife assembly is connected the rear end of cutter body;
Said feeding dish is fixedly connected with the axle head of multidiameter.
Adopt said structure, metal fillings appearance is being added man-hour, at first above-mentioned turning cutting tool is installed in the machine chuck, then metal mandrel rod to be processed is fixed in the clamp-on tool, simultaneously the lathe parameter is set to amount of feeding f=0.03r/mm; Rotation speed n=300rpm, processing is implemented in the middle carriage feed.Blade ream in the process on 3 spiral shell dish claw knife rests, broken metallic particles through the accurate landing of the tailstock of feeding dish to expecting in the ware body.Because the axle head center of multidiameter has the slotted eye that is connected with cavity, cutting workpiece slotted eye thus penetrates, and guarantees to work continuously, and has improved operating efficiency, and the processing length maximum can reach 40mm.Rotation adjustment ring; The adjusting spiral shell dish that is connected with adjustment ring rotates thereupon, and when adjusting spiral shell disc spins, 3 spiral shell dish claw knife rests are along draw-in groove synchronization telescope radially; Reach the effect of adjustment knife rest, accurately process with the workpiece (metal bar axle) that adapts to different-diameter.
As further improvement, be connected with the backgauge cup on the said end cap, said backgauge cup is fastened on the end cap.After process finishing; The gases at high pressure pipe joint is connected with air pump gas larynx snapping; Gases at high pressure will stick on the slotted eye of clout metallic particles through the multidiameter axle head on the cutter body and blow off and reverse gear in the material cup; Realized thorough recovery, and can not influence the following subnormal use of cutter metal fillings appearance.
Further again, as preferred version, being shaped as from the multidiameter afterbody of said cavity to diminishing wedge shape of axle head or truncated cone-shaped.Above-mentioned shape helps the thorough removing to metal fillings appearance in the cavity.
Further, said feeding dish comprises material ware body and tailstock, and said tailstock is fixed in the slotted eye, has, position corresponding groove consistent with the draw-in groove width on the tailstock, and the tailstock rear end offers centre bore.Being provided with of groove guaranteed radially normally the moving of spiral shell dish claw knife rest in the draw-in groove.Being provided with of centre bore can make workpiece from then on the worker penetrate, guaranteed the continuity of processing.
As preferably, said draw-in groove is shaped as T-slot or dovetail groove.
Further, said handle of a knife assembly is formed by knife bar and sleeve combination, and said knife bar is fastened in the sleeve.This structure is easy for removal and installation, is easy to carry.
Said knife bar has Morse's taper, and barrel bore is consistent with the shape of knife bar.
Further, be provided with between said adjusting spiral shell dish and the deep groove ball bearing and be used for outer jump ring of spacing bearing and the interior jump ring of bearing, be provided with bearing space ring between two deep groove ball bearings.Wherein, the outer jump ring of bearing is used for the bearing outer ring shaft shoulder is carried out spacing, and jump ring is used for carrying out spacing to inner ring in the bearing.
As first kind of preferred version, said spiral shell dish claw knife rest is the alloy turning tool rest, and the alloy turning tool rest is made up of alloy lathe tool tool holder body and the alloy lathe tool that is fixed on the alloy lathe tool tool holder body.Be used to process the high strength steel grade.
As second kind of preferred version, said spiral shell dish claw knife rest is the high-speed steel bit knife rest, and said high-speed steel bit knife rest is formed by the high-speed steel bit tool holder body with its affixed high-speed steel bit.Be used for processing, mild steel and non-ferrous metal.
In sum, the beneficial effect of the utility model is that the processing of use extension type 3 cutting edge cutters enforcement bits appearance can significantly be strengthened the blanking crushing performance, refinement of particle size, optimization processing quality, lifting working (machining) efficiency.Detachable feeding dish is installed at the middle part, directly gathers materials behind the blanking, and bits appearance purity is guaranteed, and the finished product recovery rate is high; The utility model is high to the working (machining) efficiency of workpiece; Realized metal fillings appearance is all reclaimed, each parts can be dismantled, and can each parts be placed in the tool box, is easy to carry.
Description of drawings
Fig. 1 is the surface structure sketch map of the utility model.
Fig. 2 is the exploded sketch of the utility model.
Fig. 3 is the part exploded perspective sketch map of the utility model cutter body.
Fig. 4 is the full sectional view of the utility model cutter body.
Fig. 5 is the utility model blade radiai adjustment method schematic perspective view.
Fig. 6 is the utility model cutter body pedestal schematic perspective view.
Fig. 7 is a sketch map that behind the utility model cutter body connection source of the gas bits appearance is purged.
Fig. 8 is the utility model cutter body and the sketch map that cooperates of backgauge cup.
Fig. 9 is the schematic perspective view of the utility model feeding dish.
Figure 10 is the utility model cutter body and the sketch map that cooperates of feeding dish.
Figure 11 is the exploded view of the utility model handle of a knife assembly.
Figure 12 is the exploded view of the alloy turning tool rest that adopts of the utility model.
Figure 13 is the exploded view of the high-speed steel bit knife rest that adopts of the utility model.
Figure 14 is the structural representation that the utility model is installed the alloy turning tool rest.
Figure 15 is the structural representation that the utility model is installed the high-speed steel bit knife rest.
Figure 16 is the schematic perspective view of taking in after each parts dismounting of the utility model.
Figure 17 is the utility model lathe clamping sketch map.
Figure 18 is the utility model workpiece cutting sketch map.
Figure 19 is the workpiece cutting sketch map that the utility model is seen from cutter body the place ahead.
Figure 20 is the structural representation of the utility model end cap.
Among the figure:
The 1st, the backgauge cup, the 2nd, end cap, 2a are openings, 2c is a radial slot, the 3rd, cutter body; 3a is a pedestal, and 3a-1a is the collar, and 3a-1b is a multidiameter, and 3a-1c is a draw-in groove, and 3a-1d is the mirror image groove; 3b is an adjustable ring, and 3c is a deep groove ball bearing, and 3d is a bearing space ring, and 3e is an attachment screw; 3f is a spiral shell dish claw knife rest, and 3f-1a is an alloy lathe tool tool holder body, and 3f-2a is a trip bolt, and 3f-3a is the alloy lathe tool; 3f-1b is the high-speed turning tool tool holder body, and 3f-2b is a blade pressuring plate, and 3f-3b is a high-speed steel bit, and 3g is an oil sealing, and 3h regulates the spiral shell dish, and 3i-1 is the outer jump ring of bearing; 3i-2 is a jump ring in the bearing, and 3j is the gases at high pressure pipe joints, and 3k is a stop screw, and 3l is a cavity, and 3n is a slotted eye, the 4th, and the handle of a knife assembly; 4a is a knife bar, and 4b is a sleeve, the 5th, and feeding dish, 5a are material ware bodies, and 5b is a stage clip, and 5c is a depression bar; 5d is a clamp nut, and 5e is a groove, and 5f is a centre bore, and 5g is a tailstock, the 6th, and workpiece, the 7th, knife rest.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description:
To shown in Figure 4, a kind of horizontal lathe comprises cutter body 3, end cap 2, handle of a knife assembly 4 and feeding dish 5 with metal fillings sample car sharpener tool like Fig. 2; Said cutter body 3 comprises pedestal 3a; Pedestal is made up of collar 3a-1a and the multidiameter 3a-1b that is installed in the collar one end; Said collar 3a-1 has gases at high pressure pipe joint 3j, and gases at high pressure pipe joint 3j is fixed on pedestal 3a bottom, during use with itself and air pump gas larynx snapping.Be arranged with two deep groove ball bearing 3c side by side on the said multidiameter 3a-2 cylindrical; Place spacer ring 3d between two deep groove ball bearings; Jump ring 3i cooperates the cylindrical shaft shoulder to carry out spacing axially; Be equipped with adjustable ring 3b on the outer ring of two bearings, the outer ring of two deep groove ball bearings is matched with circle in the adjustable ring 3b with transient mode.The axle head of said multidiameter has 3 along the radially equally distributed draw-in groove 3a-1c of end face.As shown in Figure 6, said draw-in groove is shaped as T-slot.Certainly the draw-in groove shape also can adopt dovetail groove.As can beappreciated from fig. 4, multidiameter inside has a cavity 3l, as preferably, and being shaped as from the multidiameter afterbody of said cavity to diminishing wedge shape of axle head or truncated cone-shaped.
The axle head center of multidiameter has the slotted eye 3n that is connected with cavity 3l, and in working angles, workpiece slotted eye thus penetrates and progress into cavity, guarantees to work continuously, and the processing length maximum can reach 40mm.The sheathed adjusting spiral shell dish 3h in the termination of multidiameter with end-face helical; Be connected through 4 pieces of high-strength screw 3e between said adjusting spiral shell dish and the adjustable ring 3b, be provided with between said adjusting spiral shell dish 3h and the deep groove ball bearing 3c and be used for jump ring 3i-2 in spacing outer jump ring 3i-1 of bearing of bearing outer ring and inner ring and the bearing.In 3 draw-in grooves the spiral shell dish claw knife rest 3f that rear end face has screw thread is installed respectively; The screw thread of said spiral shell dish claw knife rest 3f matches with the end-face helical of regulating spiral shell dish 3h; The inner ring of regulating the spiral shell dish is equipped with felt oil seal 3g, can effectively prevent the bearing lubrication oil seepage during rotation adjusting.
As shown in Figure 5, when regulating the spiral shell disc spins, 3 spiral shell dish claw knife rests can be along draw-in groove synchronization telescope radially, to adapt to the cutting needs Φ 2.5～Φ 10 of different diameter of axle test buttons.
Said end cap 2 is fixed on the axle head of multidiameter, and is shown in figure 20, and the end cap middle part has the opening 2a that is complementary with multidiameter termination shape, offers the corresponding radial slot 2c with draw-in groove 3a-1c on the end cap.Said handle of a knife assembly 4 is connected the rear end of cutter body 3; Said feeding dish 5 is fixedly connected with the axle head of multidiameter.
As shown in Figure 8, be connected with backgauge cup 1 on the said end cap, said backgauge cup is fastened on the end cap.In conjunction with Fig. 7; After process finishing; The gases at high pressure pipe joint is connected with air pump gas larynx snapping; Gases at high pressure will stick on the slotted eye of clout metallic particles through the multidiameter axle head on the cutter body and blow off and reverse gear in the material cup, realize the thorough recovery to metal fillings appearance, and can not influence the following subnormal use of cutter.
As shown in Figure 9, said feeding dish 5 comprises material ware body 5a and tailstock 5g, and said tailstock is fixed in the slotted eye 3n of multidiameter axle head, has, position corresponding groove 5e consistent with the draw-in groove width on the tailstock, and the tailstock rear end offers centre bore 5f.For the ease of assembling; Can be along offering three mirror image groove 3a-1d on the slotted eye 3n wall of said multidiameter termination; 3 mirror image grooves are spaced apart between adjacent draw-in groove 3a-1c; On tailstock, offer the boss endoporus, stage clip 5b is installed in the hole, use nut 5d to be pressed in the mirror image groove 3a-1d after being inserted in depression bar 5c.
Shown in figure 11, said handle of a knife assembly 4 is combined by knife bar 4a and sleeve 4b, and said knife bar is fastened in the sleeve.Be convenient to dismounting and carry.
Shown in figure 12, said spiral shell dish claw knife rest is the alloy turning tool rest, and said alloy turning tool rest is made up of alloy lathe tool tool holder body 3f-1a and the alloy lathe tool 3f-3a that is fixed on the alloy lathe tool tool holder body.
Shown in figure 13, said spiral shell dish claw knife rest is the high-speed steel bit knife rest, and said high-speed steel bit knife rest is formed by high-speed steel bit tool holder body 3f-1b with its affixed high-speed steel bit 3f-3b.
Shown in figure 16, the cutting tool of the utility model can be taken in the tool box after dismounting.Be easy to carry.
In conjunction with Figure 17 to 19, utilize the utility model to implement bits appearance and add man-hour, at first cutter is placed in the lathe cutter saddle, then centre-height is regulated, until the visual conllinear of 3 blade cutting edges and sample axle center.Clamp-on tool is set to amount of feeding f=0.03r/mm with the lathe parameter subsequently; Rotation speed n=300rpm, processing is implemented in the middle carriage feed.In the process through the broken metallic particles of 3 blade reams through the accurate landing of the tailstock of feeding dish to expecting in the ware body.Because the axle head center of multidiameter has the slotted eye that is connected with cavity, cutting workpiece slotted eye thus penetrates, and guarantees to work continuously, and has improved operating efficiency, and the processing length maximum can reach 40mm.Rotation adjustment ring, the adjusting spiral shell dish that is connected with the adjustment ring rotates thereupon, and when regulating the spiral shell disc spins, 3 spiral shell dish claw knife rests reach the effect of adjustment knife rest along draw-in groove synchronization telescope radially, have guaranteed the accurate processing of knife rest to workpiece metal rod spool.
Claims (10)
1. a horizontal lathe is characterized in that with metal fillings sample car sharpener tool:
Comprise cutter body (3), end cap (2), handle of a knife assembly (4) and feeding dish (5);
Said cutter body (3) comprises pedestal (3a); Said pedestal is made up of the collar (3a-1a) and the multidiameter (3a-1b) that is installed in the collar one end; The said collar (3a-1a) has gases at high pressure pipe joint (3j); Be arranged with two deep groove ball bearings (3c) side by side on said multidiameter (3a-1b) cylindrical, be equipped with adjustable ring (3b) on the outer ring of two deep groove ball bearings (3c), the axle head of said multidiameter has 3 along the radially equally distributed draw-in groove of end face (3a-1c); Multidiameter inside has a cavity (3l); The axle head center of multidiameter has the slotted eye (3n) that is connected with cavity (3l), the sheathed adjusting spiral shell dish (3h) in the termination of multidiameter with end-face helical, and said adjusting spiral shell dish is connected with adjustable ring (3b); In 3 draw-in grooves the spiral shell dish claw knife rest (3f) that rear end face has screw thread is installed respectively, the screw thread of said spiral shell dish claw knife rest (3f) matches with the end-face helical of regulating spiral shell dish (3h);
Said end cap (2) is fixed on the axle head of multidiameter, and said end cap middle part has the opening (2a) that is complementary with multidiameter termination shape, offers on the end cap and the corresponding radial slot of draw-in groove (3a-1c) (2c);
Said handle of a knife assembly (4) is connected the rear end of cutter body (3);
Said feeding dish (5) is fixedly connected with the axle head of multidiameter.
2. metal fillings sample car sharpener tool as claimed in claim 1 is characterized in that:
Be connected with backgauge cup (1) on the said end cap, said backgauge cup is fastened on the end cap.
3. metal fillings sample car sharpener tool as claimed in claim 1 is characterized in that:
Being shaped as from the multidiameter afterbody of said cavity (3l) to diminishing wedge shape of axle head or truncated cone-shaped.
4. metal fillings sample car sharpener tool as claimed in claim 1 is characterized in that:
Said feeding dish (5) comprises material ware body (5a) and tailstock (5g), and said tailstock is fixed in the slotted eye (3n), has, position corresponding groove (5e) consistent with the draw-in groove width on the tailstock, and the tailstock rear end offers centre bore (5f).
5. metal fillings sample car sharpener tool as claimed in claim 1 is characterized in that:
Said draw-in groove is shaped as T-slot or dovetail groove.
6. metal fillings sample car sharpener tool as claimed in claim 1 is characterized in that
Said handle of a knife assembly (4) is combined by knife bar (4a) and sleeve (4b), and said knife bar is fastened in the sleeve.
7. metal fillings sample car sharpener tool as claimed in claim 6 is characterized in that:
Said knife bar (4a) has Morse's taper, and barrel bore is consistent with the shape of knife bar.
8. metal fillings sample car sharpener tool as claimed in claim 1 is characterized in that:
Be provided with between said adjusting spiral shell dish (3h) and the deep groove ball bearing (3c) and be used for outer jump ring (3i-1) of spacing bearing and the interior jump ring (3i-2) of bearing, be provided with bearing space ring (3d) between two deep groove ball bearings.
9. metal fillings sample car sharpener tool as claimed in claim 1 is characterized in that:
Said spiral shell dish claw knife rest is the alloy turning tool rest, and said alloy turning tool rest is made up of alloy lathe tool tool holder body (3f-1a) and the alloy lathe tool (3f-3a) that is fixed on the alloy lathe tool tool holder body.
10. metal fillings sample car sharpener tool as claimed in claim 1 is characterized in that:
Said spiral shell dish claw knife rest is the high-speed steel bit knife rest, and said high-speed steel bit knife rest is formed by high-speed steel bit tool holder body (3f-1b) with its affixed high-speed steel bit (3f-3b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220247531 CN202606900U (en) | 2012-05-29 | 2012-05-29 | Metal scrap sample turning tool for horizontal lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220247531 CN202606900U (en) | 2012-05-29 | 2012-05-29 | Metal scrap sample turning tool for horizontal lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202606900U true CN202606900U (en) | 2012-12-19 |
Family
ID=47340632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220247531 Withdrawn - After Issue CN202606900U (en) | 2012-05-29 | 2012-05-29 | Metal scrap sample turning tool for horizontal lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202606900U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728861A (en) * | 2012-05-29 | 2012-10-17 | 宝钢发展有限公司 | Metal chip sample turning tool for horizontal lathe |
| CN111922367A (en) * | 2020-07-28 | 2020-11-13 | 绍兴市知凡机械有限公司 | Turning tool structure of steel bar friction welding machine |
-
2012
- 2012-05-29 CN CN 201220247531 patent/CN202606900U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728861A (en) * | 2012-05-29 | 2012-10-17 | 宝钢发展有限公司 | Metal chip sample turning tool for horizontal lathe |
| CN102728861B (en) * | 2012-05-29 | 2013-12-25 | 宝钢发展有限公司 | Metal chip sample turning tool for horizontal lathe |
| CN111922367A (en) * | 2020-07-28 | 2020-11-13 | 绍兴市知凡机械有限公司 | Turning tool structure of steel bar friction welding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121219 Effective date of abandoning: 20131225 |
|
| RGAV | Abandon patent right to avoid regrant |