CN202683755U - Die for punching internal hexagon holes - Google Patents
Die for punching internal hexagon holes Download PDFInfo
- Publication number
- CN202683755U CN202683755U CN 201220332137 CN201220332137U CN202683755U CN 202683755 U CN202683755 U CN 202683755U CN 201220332137 CN201220332137 CN 201220332137 CN 201220332137 U CN201220332137 U CN 201220332137U CN 202683755 U CN202683755 U CN 202683755U
- Authority
- CN
- China
- Prior art keywords
- hole
- die body
- end part
- cavity
- small end
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model provides a die for punching internal hexagon holes. The die comprises a location sleeve, an unloading sleeve, an internal hexagon pin, a die body, an internal hexagon pin chuck sand a die sleeve. The internal hexagon pin chuck is in a shape of a circular truncated cone, a cavity for containing the internal hexagon pin is arranged on the internal hexagon pin chuck, the die sleeve is in a shape of a ladder-shaped shaft, a bore hole is arranged on the die sleeve, the location sleeve is in a shape of a ladder-shaped shaft, a cavity in a shape corresponding to a shape of a bolt to be punched is arranged on the location sleeve, the unloading sleeve is in a shape of a ladder-shaped shaft, a cavity for installing a die seat and a through hole for placing the location sleeve are arranged on the unloading sleeve, the die body is in a shape of a ladder-shaped shaft, and a cavity for placing the die sleeve is arranged on the die body. The location sleeve s sleeved on the unloading sleeve, the internal hexagon pin is fixedly connected onto the internal hexagon pin chuck which is sleeved on the die sleeve, the die sleeve is sleeved on the die body, and the unloading sleeve is sleeved on the die body. The die has the advantages that a processing method is simple and convenient to operate, efficiency is high, manufactured product size is high in accuracy, and consistency is good.
Description
Technical field
The utility model relates to a kind of diel, relates in particular to a kind of mould of interior hexagonal hole of punching bolt shank tail end.
Background technology
SOC.HD. cap screw is widely used in fields such as Aeronautics and Astronautics, boats and ships, electronics, defence owing to possessing good positioning and locking effect.Its relevant criterion has special requirement to the accurate positioning of SOC.HD. cap screw, convenient and swift, high conformity.This just proposes high request to the uniformity of the interior hexagonal hole size of SOC.HD. cap screw, must be interior hexagonal hole size Control within a very tight margin of tolerance.So the processing method of the interior hexagonal hole of SOC.HD. cap screw is particularly important.Because being the hexagon with special use, the interior hexagonal hole of SOC.HD. cap screw is used in conjunction with, six square chi cun tolerance is very tight, and low according to traditional extruding, slotting or electric discharge machining method efficient, processing cost is high, and the uniformity less stable of finished size, there is larger mismachining tolerance.Solve that above efficient is low, the unsettled problem of size, the processing of SOC.HD. cap screw and measure and to possess following five characteristics: 1, simple and easy to operate; 2, has versatility; 3, accurate positioning; 4, processing cost is low; 5, efficient is high.
Summary of the invention
Problem to be solved in the utility model provides the mould of hexagonal hole in a kind of punching, can be fast, accurately the interior hexagonal hole of six side's shank of screw sections be carried out punch process.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the mould of hexagonal hole in a kind of punching comprises positioning sleeve, discharging cover, interior six side's red needles, die body, interior six side's red needle chuck and die sleeves; The profile of six side's red needle chucks is one round table-like in described, comprises large end parts and small end part, and the end face center of described large end parts has a cavity that is used for laying interior six side's red needle afterbodys; The profile of described die sleeve is a ladder shape shaft, comprise large end parts, middle-end part and small end part, central axis along die sleeve has a taper hole identical with interior six side's red needle chuck profiles, described taper hole is through hole, the large footpath of taper hole is positioned at the end face center of large end parts, and path is positioned at the end face center of small end part; The profile of described positioning sleeve is a ladder shape shaft, comprise large end parts and small end part, have on the end face center of large end parts one with treat the corresponding cavity of punching screw head shape, the end face center of small end part have one with treat punching shank of screw section shape, the corresponding through hole of size, described cavity and through hole connect; The profile of described discharging cover is a ladder shape shaft, comprise large end parts and small end part, the end face center of described large end parts has one and is used for cooperating the cylindrical cavity that die body is installed, the end face center of small end part has one and is used for laying the through hole of positioning sleeve small end part, and described cavity and through hole connect; The profile of described die body is a ladder shape shaft, comprise large end parts and small end part, the end face center of described die body small end part has one for the cylindrical cavity of laying die sleeve, has at least two screws on the end face of the large end parts of die body, and the screw coupling has bolt or screw; The small end of described positioning sleeve partly is sleeved in the through hole of discharging cover small end part, six side's red needles are fixed in the cavity of interior six side's red needle chucks in described, six side's red needle chucks are sleeved in the taper hole of die sleeve in described, described die sleeve is sleeved in the cavity of die body small end part, and the small end part of the cavity suit die body of large end parts is overlapped in described discharging.
Further, the end face center of the small end of described interior six side's red needle chucks part has a through hole, and the cavity of the large end parts of this through hole and interior six side's chucks connects, and the through-hole diameter size is less than the cavity radial dimension.
Further, the central axis of described positioning sleeve small end part and the central axis coaxial line of its through hole, the middle end face between the large end parts of described positioning sleeve and small end are divided want smooth smooth, and the central axis of positioning sleeve through hole is perpendicular in middle end face.
Further, the central axis coaxial line of the cavity of the through hole central axis end parts large with it of described discharging cover small end part, the end face of described discharging cover small end part wants smooth smooth, the central axis of discharging cover small end part is perpendicular to the end face of its small end part, and described discharging is overlapped the cavity internal diameter size of large end parts greater than the outside dimension of the large end parts of die sleeve; The cavity of large end parts is overlapped in described discharging and the outer circumference surface of die body small end part is matched in clearance, and the cavity of large end parts is overlapped in described discharging and the outer circumference surface of the large end parts of die sleeve is matched in clearance.
Further, screw on the described die body circumferentially evenly distributes with respect to the central axis of die body, the cylindrical cavity of described die body small end part comprises large and small two cavitys, the end face of large cavity and die body small end part connects, described large cavity matches with the outer circumference surface of die sleeve middle-end part, and areola matches with the outer circumference surface of die sleeve small end part.
Further, the end face center of the large end parts of described die body has a through hole, the cavity of through hole and described die body small end part connects, the central axis coaxial line of the cavity of the central axis of the outer circumference surface of described die body small end part and die body small end part, want smooth smooth by the inner face that die body small end cavity partly generates, and the central axis of die body small end part is perpendicular to inner face.
Further, also have locating hole on the end face of the large end parts of described die body, described locating hole coupling has alignment pin.
Further, also comprise a rubber gasket, the end face center of described rubber gasket has a through hole, and the outside dimension of the aperture size of described through hole and die body small end part equates, and described rubber gasket is sleeved on the small end excircle partly of die body.
Further, also comprise a backing plate, the middle bobbin thread place of described backing plate has a screwed hole, all have through hole on the upper surface of described backing plate and the lower surface, through-hole aperture on the described upper surface is less than the through-hole aperture on the lower surface, through hole on the described large end face on through hole and the small end face connects, and described backing plate is fixed together by bolt or screw and die body; On the described backing plate on the quantity of through hole and the die body quantity of screw consistent, on the described backing plate between the through hole on position and the die body position between the screw corresponding.
Further, also have locating hole on the upper surface of described backing plate, described locating hole is through hole, and on the backing plate on aperture and the die body of locating hole the aperture of locating hole identical, on the backing plate on the position of locating hole and the die body position of locating hole corresponding.。
Advantage and the good effect that the utlity model has are: adopt technique scheme, processing method is easy and simple to handle, and efficient is high, and cost is low, and security is good, and the product size precision of processing is high, high conformity.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is interior six side's red needle chuck structure schematic diagrames
Fig. 3 is the die sleeve structure schematic diagram
Fig. 4 is the locating sleeve structure schematic diagram
Fig. 5 is discharging nested structure schematic diagram
Fig. 6 is the die body structural representation
Fig. 7 is the rubber sheet gasket structural representation
Fig. 8 is the backing structure schematic diagram
Among the figure:
1, positioning sleeve 2, discharging cover 3, interior six side's red needles
4, interior six side's red needle chucks 5, die sleeve 6, rubber sheet gasket
7, die body 8, backing plate 11, large end parts
12, small end part 13, through hole 14, middle end face
15, cavity 21, large end parts 22, small end part
23, through hole 24, cavity 41, cavity
42, through hole 51, taper hole 52, large end parts
53, middle-end part 54, small end part 71, large end parts
72, small end part 73, cavity 74, inner face
75, locating hole 76, through hole 77, screw
81, screw 82, through hole 83, upper surface
84, lower surface 85, through hole 86, locating hole
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further explained.
As shown in Figure 1, the mould of hexagonal hole in a kind of punching comprises positioning sleeve 1, discharging cover 2, interior six side's red needles 3, interior six side's red needle chucks 4, die sleeve 5, rubber sheet gasket 6, die body 7 and backing plate 8.
As shown in Figure 2, in the profile of six side's red needle chucks 4 be one round table-like, the end face center of the large end parts of round platform has one for the cavity 41 of laying interior six side's red needle afterbodys, the end face center of small end part has a through hole 42, through hole 42 connects with cavity 41, and through hole 42 diameter dimensions are less than cavity 41 radial dimensions; The effect of through hole 42 is easily interior six side's red needles 3 to be ejected from interior six side's red needle chucks 4.
As shown in Figure 3, the profile of die sleeve 5 is a ladder shape shaft, comprises large end parts 52, middle-end part 53 and small end part 54, has a taper hole 51 along the central axis of die sleeve 5, and taper hole 51 is through hole; Taper hole 51 is connected with the profile taper seat of interior six side's red needle chucks 4, during the interior hexagonal hole of this kind connected mode punching, so that cooperation meeting between the two is more and more tightr, more and more stable, has guaranteed the precision of hexagonal hole in institute's punching.
As shown in Figure 4, the profile of positioning sleeve 1 is a ladder shape shaft, comprise large end parts 11 and small end part 12, have on the end face center of large end parts 12 one with treat the corresponding cavity 15 of punching screw head shape, the end face center of small end part have one with treat punching shank of screw section shape, the corresponding through hole 13 of size, cavity 15 connects with through hole 13, and this just can guarantee to treat that the bar section breech face of punching screw is for treating the punching machined surface; The central axis coaxial line of the central axis of small end part 12 and its through hole 13, middle end face 14 wants smooth smooth, and the central axis of through hole 13 is perpendicular to middle end face 14, and this has just guaranteed to treat the correct location of punching screw.
As shown in Figure 5, the profile of discharging cover 2 is a ladder shape shaft, comprise large end parts 21 and small end part 22, the end face center of described large end parts 21 has one and is used for cooperating the cylindrical cavity 24 that die body 7 is installed, the end face center of small end part has one and is used for laying the through hole 23 of positioning sleeve small end part 12, and cavity 24 connects with through hole 23.
As shown in Figure 6, the profile of die body 7 is a ladder shape shaft, comprise large end parts 71 and small end part 72, the end face center of small end part 72 has one for the cylindrical cavity 73 of laying die sleeve 5, have at least two screws 77 on the end face of the large end parts 71 of die body, the screw coupling has bolt or screw; Screw circumferentially evenly distributes with respect to the central axis of die body 7, cylindrical cavity 73 comprises large and small two cavitys, the end face of large cavity and die body small end part connects, large cavity matches with the outer circumference surface of die sleeve 5 middle-end parts 53, and areola matches with the outer circumference surface of die sleeve small end part 54.The end face center of the large end parts 71 of die body has a through hole 76, through hole 76 connects with the cavity 73 of die body small end part 72, the central axis of the outer circumference surface of die body small end part 72 and the central axis coaxial line of cavity 73, want smooth smooth by the inner face 74 that die body small end cavity partly generates, and the central axis of die body small end part 72 is perpendicular to inner face 74, the correct location of six side's red needles also has locating hole 75 on the end face of the large end parts 71 of die body in having guaranteed like this; Arranging of through hole 76 can eject interior six side's red needle chucks 3 easily, is convenient for changing impaired parts.
As shown in Figure 7, have a through hole on the end face of rubber gasket 6, the aperture size of through hole equates with the outside dimension of die body small end part 72.
As shown in Figure 8, the middle bobbin thread place of backing plate 8 has a screwed hole, all have through hole on the upper surface 83 of backing plate and the lower surface 84, through hole 82 apertures are less than through hole 85 apertures, two through hole connects, on the backing plate on the quantity of through hole and the die body 7 quantity of screw consistent, on the backing plate 8 between the through hole on position and the die body 7 position between the screw corresponding.Also have locating hole 86 on the upper surface 83 of backing plate, this locating hole 86 is through hole, and the position of locating hole 75 is corresponding on the position of this locating hole and the die body 7.
The annexation of each parts as shown in Figure 1 in the present embodiment, treat that the punching screw placement is in positioning sleeve 1, the small end part 12 of positioning sleeve is sleeved in the through hole 23 of discharging cover small end part, interior six side's red needles 3 are fixed in the cavity 41 of interior six side's red needle chucks 4, interior six side's red needle chucks 4 are sleeved in the taper hole 51 of die sleeve, die sleeve 5 is sleeved in the cavity 73 of die body small end part, rubber gasket 6 is sleeved on the excircle of small end part 72 of die body, the cavity 24 that large end parts is overlapped in discharging is sleeved on the excircle of small end part 72 of die body, die body 7 is fixed on the backing plate 8 by screw, and backing plate 8 is fixed on the punch press.Wherein, the central axis of discharging cover through hole 23 and the central axis coaxial line of its cavity 24, the end face of discharging cover small end part 22 wants smooth smooth, the central axis of discharging cover small end part 22 is perpendicular to the end face of its small end part 22, discharging cover cavity 24 internal diameter sizes are greater than the outside dimension of die sleeve 5 large end parts 53, so just guaranteed to treat the coaxiality of the central axis of the central axis of punching screw and interior six side's red needles 3, so that the interior hexagonal hole of institute's punching is more accurate; Discharging cover cavity 24 is matched in clearance with the outer circumference surface of die body small end part 72, and discharging cover cavity 14 be matched in clearance also with the outer circumference surface of the large end parts 53 of die sleeve, so that energy automatic capturing when treating punching screw and interior six side's red needle; Owing to the elasticity that has of rubber gasket 6, can utilize very easily rubber gasket 6 rebound effects that 2 jack-up are overlapped in discharging during discharging; The setting of locating hole on die body 7 and the backing plate 8, utilize alignment pin a whole set of mold tooling can be placed on the punch press Working position more accurately, like this in punching during hexagonal hole, so that treat that the punching screw can uniform stressed, guaranteed the quality of hexagonal hole in institute's punching, product percent of pass is improved, reduced processing cost, improved production efficiency.
In sum, during the interior hexagonal hole of the utility model punching screw, easy and simple to handle, efficient is high, and cost is low, and security is good, and the product size precision of processing is high, and high conformity is worthy to be popularized.
Above an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (10)
1. the mould of the interior hexagonal hole of punching comprises positioning sleeve, discharging cover, interior six side's red needles, die body, it is characterized in that: also comprise interior six side's red needle chuck and die sleeves; The profile of six side's red needle chucks is one round table-like in described, comprises large end parts and small end part, and the end face center of described large end parts has a cavity that is used for laying interior six side's red needle afterbodys; The profile of described die sleeve is a ladder shape shaft, comprise large end parts, middle-end part and small end part, central axis along die sleeve has a taper hole identical with interior six side's red needle chuck profiles, described taper hole is through hole, the large footpath of taper hole is positioned at the end face center of large end parts, and path is positioned at the end face center of small end part; The profile of described positioning sleeve is a ladder shape shaft, comprise large end parts and small end part, have on the end face center of large end parts one with treat the corresponding cavity of punching screw head shape, the end face center of small end part have one with treat punching shank of screw section shape, the corresponding through hole of size, described cavity and through hole connect; The profile of described discharging cover is a ladder shape shaft, comprise large end parts and small end part, the end face center of described large end parts has one and is used for cooperating the cylindrical cavity that die body is installed, the end face center of small end part has one and is used for laying the through hole of positioning sleeve small end part, and described cavity and through hole connect; The profile of described die body is a ladder shape shaft, comprise large end parts and small end part, the end face center of described die body small end part has one for the cylindrical cavity of laying die sleeve, has at least two screws on the end face of the large end parts of die body, and the screw coupling has bolt or screw; The small end of described positioning sleeve partly is sleeved in the through hole of discharging cover small end part, six side's red needles are fixed in the cavity of interior six side's red needle chucks in described, six side's red needle chucks are sleeved in the taper hole of die sleeve in described, described die sleeve is sleeved in the cavity of die body small end part, and the small end part of the cavity suit die body of large end parts is overlapped in described discharging.
2. the mould of hexagonal hole in the punching according to claim 1, it is characterized in that: the end face center of the small end of six side's red needle chucks part has a through hole in described, the cavity of the large end parts of this through hole and interior six side's chucks connects, and the through-hole diameter size is less than the cavity radial dimension.
3. the mould of hexagonal hole in the punching according to claim 1, it is characterized in that: the central axis of described positioning sleeve small end part and the central axis coaxial line of its through hole, it is smooth smooth that middle end face between the large end parts of described positioning sleeve and small end are divided is wanted, and the central axis of positioning sleeve through hole is perpendicular to middle end face.
4. the mould of hexagonal hole in the punching according to claim 1, it is characterized in that: the central axis coaxial line of the cavity of the through hole central axis end parts large with it of described discharging cover small end part, the end face of described discharging cover small end part wants smooth smooth, the central axis of discharging cover small end part is perpendicular to the end face of its small end part, and described discharging is overlapped the cavity internal diameter size of large end parts greater than the outside dimension of the large end parts of die sleeve; The cavity of large end parts is overlapped in described discharging and the outer circumference surface of die body small end part is matched in clearance, and the cavity of large end parts is overlapped in described discharging and the outer circumference surface of the large end parts of die sleeve is matched in clearance.
5. the mould of hexagonal hole in the punching according to claim 1, it is characterized in that: the screw on the described die body circumferentially evenly distributes with respect to the central axis of die body, the cylindrical cavity of described die body small end part comprises large and small two cavitys, the end face of large cavity and die body small end part connects, described large cavity matches with the outer circumference surface of die sleeve middle-end part, and areola matches with the outer circumference surface of die sleeve small end part.
6. the mould of hexagonal hole in the punching according to claim 1 or 5, it is characterized in that: the end face center of the large end parts of described die body has a through hole, the cavity of through hole and described die body small end part connects, the central axis coaxial line of the cavity of the central axis of the outer circumference surface of described die body small end part and die body small end part, want smooth smooth by the inner face that die body small end cavity partly generates, and the central axis of die body small end part is perpendicular to inner face.
7. the mould of hexagonal hole in the punching according to claim 1, it is characterized in that: also have locating hole on the end face of the large end parts of described die body, described locating hole coupling has alignment pin.
8. the mould of hexagonal hole in the punching according to claim 1, it is characterized in that: also comprise a rubber gasket, the end face center of described rubber gasket has a through hole, the outside dimension of the aperture size of described through hole and die body small end part equates, and described rubber gasket is sleeved on the small end excircle partly of die body.
9. according to claim 1, the mould of hexagonal hole in the described punching of any one in 5,8, it is characterized in that: also comprise a backing plate, the middle bobbin thread place of described backing plate has a screwed hole, all have through hole on the upper surface of described backing plate and the lower surface, through-hole aperture on the described upper surface is less than the through-hole aperture on the lower surface, through hole on the large end face on through hole and the small end face connects, and described backing plate is fixed together by bolt or screw and die body; On the described backing plate on the quantity of through hole and the die body quantity of screw consistent, on the described backing plate between the through hole on position and the die body position between the screw corresponding.
10. the mould of hexagonal hole in the punching according to claim 9, it is characterized in that: also have locating hole on the upper surface of described backing plate, described locating hole is through hole, and on the backing plate on the aperture of locating hole and the die body aperture of locating hole identical, on the backing plate on the position of locating hole and the die body position of locating hole corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220332137 CN202683755U (en) | 2012-07-10 | 2012-07-10 | Die for punching internal hexagon holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220332137 CN202683755U (en) | 2012-07-10 | 2012-07-10 | Die for punching internal hexagon holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202683755U true CN202683755U (en) | 2013-01-23 |
Family
ID=47539427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220332137 Expired - Fee Related CN202683755U (en) | 2012-07-10 | 2012-07-10 | Die for punching internal hexagon holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202683755U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278360A (en) * | 2013-05-17 | 2013-09-04 | 山东科技大学 | Reserved chamber simulating test piece manufacturing die assembly and method used for manufacturing test piece |
| CN103447405A (en) * | 2013-09-17 | 2013-12-18 | 中国航天科技集团公司烽火机械厂 | Inner-shape stamping process device |
| CN104607545A (en) * | 2015-02-06 | 2015-05-13 | 三门峡市质量技术监督检验测试中心 | Machining device and machining method of aluminum or aluminum alloy cupping test wafer |
-
2012
- 2012-07-10 CN CN 201220332137 patent/CN202683755U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278360A (en) * | 2013-05-17 | 2013-09-04 | 山东科技大学 | Reserved chamber simulating test piece manufacturing die assembly and method used for manufacturing test piece |
| CN103447405A (en) * | 2013-09-17 | 2013-12-18 | 中国航天科技集团公司烽火机械厂 | Inner-shape stamping process device |
| CN103447405B (en) * | 2013-09-17 | 2015-12-23 | 中国航天科技集团公司烽火机械厂 | The device of shape in a kind of punch process |
| CN104607545A (en) * | 2015-02-06 | 2015-05-13 | 三门峡市质量技术监督检验测试中心 | Machining device and machining method of aluminum or aluminum alloy cupping test wafer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203171352U (en) | Machining fixture for radial holes evenly distributed in circumference | |
| CN202683755U (en) | Die for punching internal hexagon holes | |
| CN101947606A (en) | Insert mould pressing type necking machine | |
| CN202883611U (en) | Positioning connecting pin | |
| CN204148891U (en) | The short cover automobile clamper of a kind of thin-walled | |
| CN108481192A (en) | A kind of mill fixture and clamping method suitable for the long spacer of thin-walled | |
| CN204018409U (en) | A kind of combined type cold extrusion die | |
| CN204262822U (en) | A kind of disk perforating clamp | |
| CN203426757U (en) | Clamp for finish machining of inner hole of thin-walled sleeve | |
| CN205765390U (en) | A kind of fixture of the plunger contouring for hydraulic inclined-axis motors | |
| CN202062224U (en) | Special clamp for turning titanium alloy thin-wall part with complex face | |
| CN203751393U (en) | Centering round hole elastic seat core type drilling jig | |
| CN206312755U (en) | A kind of amorphous ribbon from combination dismounting is around core | |
| CN204295309U (en) | The location processing tool of semi-cylindrical thin-wall barrel workpiece | |
| CN203636621U (en) | Tool special for grinding arc faces | |
| CN203696078U (en) | Assembled milling cutter | |
| CN209407445U (en) | A kind of combined boring tool | |
| CN203092334U (en) | Non-through-hole part machining fixture | |
| CN203900915U (en) | Positioning mounting and dismounting device for ultra thin-walled cylinder type workpieces | |
| CN203448701U (en) | Finish turning clamp used in middle adjustment core of circular knitting machine | |
| CN107088770B (en) | Box boss turning tool | |
| CN107856238B (en) | Insulator casting mold and outer square forming part thereof | |
| CN202570999U (en) | Dowel screw forming die | |
| CN103978390A (en) | Split type chuck liner | |
| CN201357268Y (en) | Clamping fixture for fixing shaft parts during gear shaping process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20150710 |
|
| EXPY | Termination of patent right or utility model |