CN204913354U - Processing frock in V type series diesel engine organism cylinder liner hole - Google Patents
Processing frock in V type series diesel engine organism cylinder liner hole Download PDFInfo
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- CN204913354U CN204913354U CN201520579447.9U CN201520579447U CN204913354U CN 204913354 U CN204913354 U CN 204913354U CN 201520579447 U CN201520579447 U CN 201520579447U CN 204913354 U CN204913354 U CN 204913354U
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Abstract
The utility model relates to a diesel engine organism machining field provides a processing frock in V type series diesel engine organism cylinder liner hole. An anchor clamps bodies (11) that's a processing frock in V type series diesel engine organism cylinder liner hole harness has the cross section to be right angled triangle is proposed, be provided with slant positioner (Z1) and vertical positioner (Z2) on the inclined plane of the anchor clamps bodies (11), the processing frock is still placed on the vertical positioner (Z2) who is corresponding including two divertimento shaft holes respectively from centring means (Z5), two divertimento shaft holes from centring means (Z5), the processing frock still is provided with closing device (Z4), closing device (Z4) is for setting up the many covers on (11) inclined plane is personally experienced sth. Part of the body to anchor clamps, the anchor clamps body (11) inclined plane length direction's both ends are provided with vertical positioner (Z3) respectively. The utility model discloses the organism cylinder liner spot facing work of the different jar numbers of complete series diesel engine can be be used for, tooling design manufacturing costs reduced.
Description
Technical field
The utility model relates to diesel-engine body field of machining, relates to a kind of processing tool of V-type serial diesel engine machine body cylinder trepanning particularly.
Background technology
Sleeve port is important hole system on diesel-engine body, and for installing cylinder jacket, technical requirement is very high.The design basis of sleeve port is crankshaft hole, and in diesel engine work, sleeve port has direct geometric accuracy and relative-position error requirement to crankshaft hole, and to body bottom surface without comparatively high-tech requirement.
Sleeve port traditional diamond-making technique is using body bottom surface as the first positioning datum, and on bottom surface, two dowel holes position clamping as second, third positioning datum (i.e. " plane and two pits " locate mode), then process.
There is following drawback with this locate mode processing cylinder trepanning: first, processing technology benchmark and design reference for assembling disunity, be unfavorable for improving sleeve port machining accuracy, also usually because technological datum foozle factor causes part rejection in actual production; Secondly, what require body bottom surface and dowel hole process technology tightens up the working (machining) efficiency being also unfavorable for improving part; In addition, arrange different body by cylinder of diesel engine and divide type in upright arrangement and V-type two kinds, to V-type body with " plane and two pits " locate mode clamping, its sleeve port center line and vertical line in a certain angle, so be difficult to vertical or horizontal machine tool processing, and special purpose machine tool need be equipped with.
Along with technical development, occurred afterwards with the technology of crankshaft hole for main positioning datum processing cylinder trepanning.The such as patent No. is the utility model " crankshaft hole main location processing cylinder-bore fixture " of CN87203995U, and the technology proposed just can realize processing technology benchmark and the unification designing reference for assembling.But its technological equipment related to is huge, complicated, and the equipment adopted belongs to special purpose machine tool, and this technology is only applicable to process type machine body cylinder trepanning in upright arrangement.
Utility model content
For solving the problems of the technologies described above, the purpose of this utility model is the processing tool of a kind of V-type serial diesel engine machine body cylinder trepanning proposed.
The utility model adopts following technical scheme for completing above-mentioned purpose:
A processing tool for V-type serial diesel engine machine body cylinder trepanning, described processing tool has clamp body, and described clamp body has base plate and is arranged on the reverse V-shaped framework on base plate, and described reverse V-shaped framework has a facade and an inclined-plane; Described facade is arranged perpendicular to described base plate; Connected as one by riser between described inclined-plane and base plate and form the clamp body that cross section is right angled triangle, and the outside wall surface of described riser is as fixture centering datum level; The inclined-plane of described clamp body is provided with the oblique positioner in order to the oblique location of diesel-engine body; Described oblique positioner has two groups of isometry blocks setting up and down, and the end face of isometry block described in two groups at grade; Often organizing described isometry block is the polylith arranged along chamfer length direction; During work, diesel-engine body bottom surface fits in the plane that described in two groups, isometry block end face is formed, and realizes the oblique location of diesel-engine body, restriction workpiece three degree of freedom; The inclined-plane of described clamp body is provided with the vertical positioner in order to carry out vertical location to diesel-engine body; Described vertical positioner is two covers between two groups of isometry blocks, and the vertical positioner described in two covers lays respectively at the two ends on clamp body inclined-plane, and the sleeve port that correspondence is positioned at diesel-engine body two ends is arranged; Described processing tool also includes crankshaft hole Self-centering device, described crankshaft hole Self-centering device is symmetrically arranged two covers, the described crankshaft hole Self-centering device of two covers is placed on corresponding vertical positioner respectively, jointly realizes the vertical location of diesel-engine body with described vertical positioner; Described processing tool is also provided with the hold down gag in order to compress diesel-engine body; Described hold down gag is be arranged on the many covers on described clamp body inclined-plane, and the hold down gag described in many covers is arranged along the length direction on clamp body inclined-plane; Often overlapping described hold down gag is setting up and down two, and often the hold down gag of cover described in two lays respectively at the both sides of diesel-engine body; The two ends in described clamp body chamfer length direction are respectively arranged with the longitudinal positioning device in order to carry out longitudinal spacing to diesel-engine body; Described longitudinal positioning device includes locating piece, holds out against seat and hold out against screw; The locating piece of two cover longitudinal positioning device is positioned on a diagonal on clamp body inclined-plane; Holding out against seat and hold out against screw described in two cover longitudinal positioning device is positioned on another diagonal on clamp body inclined-plane, described longitudinal positioning device restriction workpiece one degree of freedom.
Described vertical positioner includes bearing and cushion block; Described bearing is installed on the inclined-plane of clamp body, and described cushion block is arranged on bearing, and the end face of described cushion block is horizontal plane; Behind trade union college location, on described two cushion blocks, plane contacts with two crankshaft hole Self-centering devices respectively and realizes the vertical location of workpiece, restriction workpiece two frees degree.
Described hold down gag includes pressing plate, bolt, nut and push rod; The inclined-plane that described pressing plate is parallel to clamp body is arranged; The lower end of described bolt, push rod is threaded connection and is arranged on clamp body inclined-plane, and pressing plate is passed, by fastening nuts in the upper end of described bolt; The upper end of described push rod is supported on the lower surface of described pressing plate, during work, pressing plate head shift-in diesel-engine body is compressed position, tightening nut, and nut plays pressuring action to pressing plate with active force.
Described locating piece is " L " shape structure, and described locating piece is fixed by one right-angle surface and clamp body, and another right-angle surface is working face, for the longitudinal register of diesel-engine body.
The described seat that holds out against is a cylinder, and one end is arranged on clamp body by screw thread, and the other end is cut flat, and center is one be vertically intersected on the screw holding out against an axle center; The described screw that holds out against is installed on by the screw holding out against an axle center and holds out against on seat, and rotary screw, screw is by axially-movable.
Described crankshaft hole Self-centering device includes the heart that rises, ringfeder, screw rod, drive end bearing bracket, rear end cap and straight pin; The cylinder of the described heart that rises to be two ends be taper seat; Described ringfeder is circular, and its aperture surface is the internal conical surface coordinated with the taper seat at heart two ends of rising; Described ringfeder is corresponding two of arranging, and the ringfeder described in two is nested with respectively on the taper seat rising by heart two ends; Described drive end bearing bracket, rear end cap are arranged on the two ends of the heart that rises, and are threaded with the described heart that rises by screw rod.
The center of the described heart that rises has the unthreaded hole passed in order to screw rod.
Described ringfeder have several shaft orientation opening grooves circumferential.
The center of described rear end cap has the screwed hole coordinated with described screw rod.
The center of described drive end bearing bracket has step through-hole.
The processing tool of a kind of V-type serial diesel engine machine body cylinder trepanning that the utility model proposes, adopt technique scheme, by increasing and decreasing the quantity of vertical positioner and hold down gag on described clamp body, and the longitudinal jacking mechanism of corresponding adjustment hold out against seat and hold out against screw position, namely may be used for all machine body cylinder cover hole machined of the different cylinder number of complete series diesel engine, decrease Fixture Design manufacturing expense.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the utility model fixture and workpiece;
Fig. 2 is the utility model fixture front view;
Fig. 3 is the utility model fixture left view;
Fig. 4 is the axial sectional view of crankshaft hole Self-centering device;
Fig. 5 is that crankshaft hole Self-centering device penetrates rear body longitudinal sectional view;
Fig. 6 is that body installs rear jig front view;
Fig. 7 is that body installs rear jig left view;
Fig. 8 is processing complete series diesel-engine body sleeve port fixture front view.
In figure: 1, locating piece, 2, pressing plate, 3, bolt, 4, nut, 5, push rod, 6, isometry block, 7, bearing, 8, cushion block, 9, hold out against seat, 10, hold out against screw, 11, clamp body, 12, screw rod, 13, drive end bearing bracket, 14, ringfeder, 15, rise the heart, 16, rear end cap, 17, straight pin, 18, diesel-engine body, 19, machine tool rotary working table, 20, machine tool chief axis, Z1, oblique positioner, Z2, vertical positioner, Z3, longitudinal positioning device, Z4, hold down gag, Z5, crankshaft hole Self-centering device, T1, fixture centering datum level, T2, body output end face, T3, plane on cushion block.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figures 1 to 7, a kind of processing tool of V-type serial diesel engine machine body cylinder trepanning, described processing tool has clamp body 11, and described clamp body 11 has base plate and is arranged on the reverse V-shaped framework on base plate, and described reverse V-shaped framework has a facade and an inclined-plane; Described facade is arranged perpendicular to described base plate; Connected as one by riser between described inclined-plane and base plate and form the clamp body that cross section is right angled triangle, and the outside wall surface of described riser is as fixture centering datum level; The inclined-plane of described clamp body 11 is provided with the oblique positioner Z1 in order to the oblique location of diesel-engine body; Described oblique positioner Z1 has the end face of isometry block 6 described in two groups of isometry blocks setting up and down 6, two groups at grade; Often organizing described isometry block 6 is the polylith arranged along chamfer length direction; During work, diesel-engine body bottom surface fits in the plane that described in two groups, isometry block end face is formed, realize the oblique location of diesel-engine body, restriction workpiece three degree of freedom, i.e. the diesel-engine body movement of (Z-direction) and the rotation of vertically (Y-direction), left and right directions (X-direction) along the longitudinal direction; The inclined-plane of described clamp body 11 is provided with the vertical positioner Z2 in order to carry out vertical location to diesel-engine body; Described vertical positioner Z2 is two covers between two groups of isometry blocks 6, and the vertical positioner Z2 described in two covers lays respectively at the two ends on clamp body 11 inclined-plane, and the sleeve port that correspondence is positioned at diesel-engine body two ends is arranged; Described processing tool also includes crankshaft hole Self-centering device Z5, described crankshaft hole Self-centering device Z5 is symmetrically arranged two covers, the described crankshaft hole Self-centering device Z5 of two covers is placed on corresponding vertical positioner Z2 respectively, jointly realizes the vertical location of diesel-engine body with described vertical positioner Z2; Described processing tool is also provided with the hold down gag Z4 in order to compress diesel-engine body; Described hold down gag Z4 is arranged on the many covers on described clamp body 11 inclined-plane, and the hold down gag Z4 described in many covers is arranged along the length direction on clamp body inclined-plane; Often overlapping described hold down gag Z4 is setting up and down two, and often the hold down gag Z4 of cover described in two lays respectively at the both sides of diesel-engine body; The two ends in described clamp body 11 chamfer length direction are respectively arranged with the longitudinal positioning device Z3 in order to carry out longitudinal spacing to diesel-engine body; Described longitudinal positioning device Z3 includes locating piece 1, holds out against seat 9 and hold out against screw 10; The locating piece 1 of two cover longitudinal positioning device is positioned on a diagonal on clamp body inclined-plane; Holding out against seat 9 and hold out against screw 10 described in two cover longitudinal positioning device is positioned on another diagonal on clamp body inclined-plane, and described longitudinal positioning device Z3 limits workpiece one degree of freedom, i.e. the movement of diesel-engine body (X-direction) in left-right direction.
Described vertical positioner Z2 includes bearing 7 and cushion block 8; Described bearing 7 is installed on the inclined-plane of clamp body 11, and described cushion block 8 is arranged on bearing 7, and the end face of described cushion block 8 is horizontal plane; Behind trade union college location, on described two cushion blocks, plane contacts with two crankshaft hole Self-centering devices respectively and realizes the vertical location of workpiece, restriction workpiece two frees degree, i.e. the diesel-engine body vertically movement of (Y-direction) and (Z-direction) rotation along the longitudinal direction.
Described hold down gag Z4 includes pressing plate 2, bolt 3, nut 4 and push rod 5; The inclined-plane that described pressing plate 2 is parallel to clamp body 11 is arranged; The lower end of described bolt 3, push rod 5 is threaded connection and is arranged on clamp body 11 inclined-plane, and the upper end of described bolt 3 is through pressing plate 2, fastening by nut 4; The upper end of described push rod 5 is supported on the lower surface of described pressing plate 2, during work, pressing plate 2 head shift-in diesel-engine body is compressed position, tightening nut, and nut plays pressuring action to pressing plate with active force.
Described locating piece 1 is " L " shape structure, and described locating piece 1 is fixed by one right-angle surface and clamp body, and another right-angle surface is working face, for the longitudinal register of diesel-engine body.
The described seat 9 that holds out against is a cylinder, and one end is arranged on clamp body 11 by screw thread, and the other end is cut flat, and center is one be vertically intersected on the screw holding out against an axle center; The described screw 10 that holds out against is installed on by the screw holding out against an axle center and holds out against on seat, and rotary screw, screw is by axially-movable.
Described crankshaft hole Self-centering device Z5 includes the heart 15 that rises, ringfeder 14, screw rod 12, drive end bearing bracket 13, rear end cap 16 and straight pin 17; Described rise the heart 15 for two ends be the cylinder of taper seat; Described ringfeder 14 is circular, and its aperture surface is the internal conical surface coordinated with the taper seat at the heart 15 two ends of rising; Described ringfeder 14 is corresponding two of arranging, and the ringfeder 14 described in two is nested with respectively on the taper seat rising by the heart 15 two ends; Described drive end bearing bracket 13, rear end cap 16 are arranged on the two ends of the heart 15 that rises, and are threaded with the described heart 15 that rises by screw rod 12.
Described center of rising by the heart 15 has the unthreaded hole passed in order to screw rod.
Described ringfeder 14 have several shaft orientation opening grooves circumferential.
The center of described rear end cap 16 has the screwed hole coordinated with described screw rod.
The center of described drive end bearing bracket 13 has step through-hole.
Utilize the processing tool of V-type serial diesel engine machine body cylinder trepanning to carry out the method for processing, its concrete steps are as follows:
1) to be arranged on machine tool rotary working table 19 by fixture after fixture centering datum level centering, fixture centering datum level and machine tool chief axis central vertical is made; The bottom surface of clamp body contacts with machine tool rotary working table 19, and at an angle, this angle is determined by diesel-engine body two row sleeve port angle, and angle value is the half of V-type diesel body two sleeve port angle for its inclined-plane and its bottom surface;
2) with plane on the cushion block 8 of positioner Z2 vertical described in fixture for benchmark centering Y-direction programming zero;
3) again with the working face centering X-direction programming zero of locating piece 1 described in longitudinal positioning device Z3 on fixture; The locating piece of two cover longitudinal positioning device need distinguish centering, obtains two numerical value;
4) two crankshaft hole Self-centering device Z5 are penetrated crankshaft hole from body two ends respectively, to crankshaft hole Self-centering device respectively across slowly screwing screw rod during crankshaft hole two grades until crankshaft hole Self-centering device tensioner is in body crankshaft hole;
5) after plane smearing machine oil on the cushion block of positioner vertical described in fixture, the body output end face T2 of diesel-engine body is lifted on fixture towards the bottom surface of the fixture left side, diesel-engine body towards fixture bevel direction, on two crankshaft hole Self-centering devices are risen cushion block that heart external cylindrical surface drops on fixture two ends respectively on plane T3;
6) pressing plate of hold down gag, bolt, nut and push rod are installed, pre-pressing are carried out to diesel-engine body, the isometry block of diesel-engine body bottom surface and fixture is fitted; The screw that holds out against of rolling clamp right-hand member makes body output end face and fixture left end locating piece fit; Compress all pressing plates diesel-engine body is fastening;
To check on workpiece bottom and isometry block, body output end face and locating piece, crankshaft hole Self-centering device and cushion block that plane place fits situation with 0.02mm clearance gauge, if clearance gauge can be filled in, readjust after workpiece is unclamped and workpiece pressing, until each contact surface place clearance gauge can not be filled in, then to rise heart external cylindrical surface centering Z-direction programming zero with crankshaft hole Self-centering device; Difference centering two crankshaft hole Self-centering devices during centering, if two numerical value are inconsistent, fine setting machine tool rotary working table angle of revolution, until numerical value is consistent; Finally, all sleeve ports of these row of processing diesel engine body successively;
7) this row sleeve port machines rear demountor diesel-engine body 18, diesel-engine body 18 tune is installed on fixture, repeating the processing that above step completes another row sleeve port of body, unlike wanting rolling clamp left end to hold out against screw when longitudinally positioning workpiece, body output end face and fixture right-hand member locating piece being fitted.
If when above processing method and frock take into account all machine body cylinder cover hole machined of complete series diesel engine different cylinder number, first fixture is by most vat number body design, then correspondingly increase, subtract the quantity of vertical positioner Z2 and hold down gag Z4 as shown in Figure 8, and the holding out against seat 9 and hold out against screw 10 position of the longitudinal jacking mechanism Z3 of corresponding adjustment.
Claims (8)
1. the processing tool of a V-type serial diesel engine machine body cylinder trepanning, it is characterized in that: described processing tool has clamp body (11), described clamp body (11) has base plate and is arranged on the reverse V-shaped framework on base plate, and described reverse V-shaped framework has a facade and an inclined-plane; Described facade is arranged perpendicular to described base plate; Connected as one by riser between described inclined-plane and base plate and form the clamp body that cross section is right angled triangle, and the outside wall surface of described riser is as fixture centering datum level; The inclined-plane of described clamp body (11) is provided with the oblique positioner (Z1) in order to the oblique location of diesel-engine body; Described oblique positioner (Z1) has two groups of isometry blocks (6) setting up and down, and the end face of isometry block (6) described in two groups at grade; Often organizing described isometry block (6) is the polylith arranged along chamfer length direction; The inclined-plane of described clamp body (11) is provided with the vertical positioner (Z2) in order to carry out vertical location to diesel-engine body; Described vertical positioner (Z2) is for being positioned at two covers between two groups of isometry blocks (6), and the vertical positioner (Z2) described in two covers lays respectively at the two ends on clamp body (11) inclined-plane, and the sleeve port that correspondence is positioned at diesel-engine body two ends is arranged; Described processing tool also includes crankshaft hole Self-centering device (Z5), described crankshaft hole Self-centering device (Z5) is symmetrically arranged two covers, the described crankshaft hole Self-centering device (Z5) of two covers is placed on corresponding vertical positioner (Z2) respectively, jointly realizes the vertical location of diesel-engine body with described vertical positioner (Z2); Described processing tool is also provided with the hold down gag (Z4) in order to compress diesel-engine body; Described hold down gag (Z4) is for being arranged on the many covers on described clamp body (11) inclined-plane, and the hold down gag (Z4) described in many covers is arranged along the length direction on clamp body inclined-plane; Often overlap described hold down gag (Z4) for setting up and down two, often the hold down gag (Z4) of cover described in two lays respectively at the both sides of diesel-engine body; The two ends in described clamp body (11) chamfer length direction are respectively arranged with the longitudinal positioning device (Z3) in order to carry out longitudinal spacing to diesel-engine body; Described longitudinal positioning device (Z3) includes locating piece (1), holds out against seat (9) and hold out against screw (10); The locating piece (1) of two cover longitudinal positioning device is positioned on a diagonal on clamp body inclined-plane; Holding out against seat (9) and hold out against screw (10) described in two cover longitudinal positioning device is positioned on another diagonal on clamp body inclined-plane, and described longitudinal positioning device (Z3) limits workpiece one degree of freedom.
2. the processing tool of a kind of V-type serial diesel engine machine body cylinder trepanning as claimed in claim 1, is characterized in that: described vertical positioner (Z2) includes bearing (7) and cushion block (8); Described bearing (7) is installed on the inclined-plane of clamp body (11), and described cushion block (8) is arranged on bearing (7), and the end face of described cushion block (8) is horizontal plane; Behind trade union college location, on described two cushion blocks, plane contacts with two crankshaft hole Self-centering devices respectively and realizes the vertical location of workpiece, restriction workpiece two frees degree.
3. the processing tool of a kind of V-type serial diesel engine machine body cylinder trepanning as claimed in claim 1, is characterized in that: described hold down gag (Z4) includes pressing plate (2), bolt (3), nut (4) and push rod (5); The inclined-plane that described pressing plate (2) is parallel to clamp body (11) is arranged; The lower end of described bolt (3), push rod (5) is threaded connection and is arranged on clamp body (11) inclined-plane, and the upper end of described bolt (3) is through pressing plate (2), fastening by nut (4); The upper end of described push rod (5) is supported on the lower surface of described pressing plate (2).
4. the processing tool of a kind of V-type serial diesel engine machine body cylinder trepanning as claimed in claim 1, it is characterized in that: described locating piece (1) is " L " shape structure, described locating piece (1) is fixed by one right-angle surface and clamp body, and another right-angle surface is working face.
5. the processing tool of a kind of V-type serial diesel engine machine body cylinder trepanning as claimed in claim 1, it is characterized in that: holding out against seat (9) described in institute is a cylinder, one end is arranged on clamp body (11) by screw thread, and the other end is cut flat, and center is one be vertically intersected on the screw holding out against an axle center; The described screw (10) that holds out against is installed on by the screw holding out against an axle center and holds out against on seat.
6. the processing tool of a kind of V-type serial diesel engine machine body cylinder trepanning as claimed in claim 1, is characterized in that: described crankshaft hole Self-centering device (Z5) includes the heart that rises (15), ringfeder (14), screw rod (12), drive end bearing bracket (13), rear end cap (16) and straight pin (17); The described heart that rises (15) for two ends be the cylinder of taper seat; Described ringfeder (14) is for circular, and its aperture surface is the internal conical surface coordinated with the taper seat at the heart that rises (15) two ends; Described ringfeder (14) is corresponding two of arranging, and the ringfeder (14) described in two is nested with respectively on the taper seat at the heart that rises (15) two ends; Described drive end bearing bracket (13), rear end cap (16) are arranged on the two ends of the heart that rises (15), and are threaded with the described heart that rises (15) by screw rod (12).
7. the processing tool of a kind of V-type serial diesel engine machine body cylinder trepanning as claimed in claim 6, is characterized in that: described in the rise center of the heart (15) there is the unthreaded hole passed in order to screw rod.
8. the processing tool of a kind of V-type serial diesel engine machine body cylinder trepanning as claimed in claim 6, is characterized in that: described ringfeder (14) has several shaft orientation opening grooves circumferential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520579447.9U CN204913354U (en) | 2015-08-05 | 2015-08-05 | Processing frock in V type series diesel engine organism cylinder liner hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520579447.9U CN204913354U (en) | 2015-08-05 | 2015-08-05 | Processing frock in V type series diesel engine organism cylinder liner hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204913354U true CN204913354U (en) | 2015-12-30 |
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ID=54962534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520579447.9U Withdrawn - After Issue CN204913354U (en) | 2015-08-05 | 2015-08-05 | Processing frock in V type series diesel engine organism cylinder liner hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204913354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105014434A (en) * | 2015-08-05 | 2015-11-04 | 河南柴油机重工有限责任公司 | Machining tool and method for cylinder sleeve holes of V-type series diesel engine bodies |
-
2015
- 2015-08-05 CN CN201520579447.9U patent/CN204913354U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105014434A (en) * | 2015-08-05 | 2015-11-04 | 河南柴油机重工有限责任公司 | Machining tool and method for cylinder sleeve holes of V-type series diesel engine bodies |
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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 | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151230 Effective date of abandoning: 20171114 |