CN204735730U - Boring bar and use boring machine of this boring bar - Google Patents
Boring bar and use boring machine of this boring bar Download PDFInfo
- Publication number
- CN204735730U CN204735730U CN201520335725.6U CN201520335725U CN204735730U CN 204735730 U CN204735730 U CN 204735730U CN 201520335725 U CN201520335725 U CN 201520335725U CN 204735730 U CN204735730 U CN 204735730U
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- bar
- boring
- bar body
- tooth
- tool rest
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Abstract
The utility model relates to a boring bar and use boring machine of this boring bar. The boring bar includes the pole body, be equipped with movable blade holder on the pole body, the activity blade holder can be followed and is moved with pole body vertically orientation, and the activity blade holder do not is equipped with cutter sectional fixture in the punishment of the ascending both ends in its activity side, cutter sectional fixture is located the both sides department of pole body. The utility model discloses be used for solving and need the replacement and installation cutter to cause the technical problem that production efficiency is low in twice course of working of boring bar among the prior art. The purpose of the utility model is to provide a still provide a boring machine that uses this boring bar.
Description
Technical field
The utility model relates to a kind of boring bar and uses the boring machine of this boring bar.
Background technology
When processing engine cylinder-body crankshaft hole middle gear thrust surface, boring machine need be adopted to process, and the boring bar of boring machine extend in crankshaft hole, and boring bar rotates, and the boring cutter on boring bar carries out thick fine finishining to crankshaft hole middle gear thrust surface.
In prior art, one end of boring bar is fixed on boring head, the other end fixes boring cutter, add man-hour, one end of boring bar overhangs and gos deep in crankshaft hole, boring cutter is along the axial feed of boring bar, because thrust surface is more much bigger than crankshaft hole, boring bar radially movement makes the blade of boring cutter contact with thrust surface, if boring bar is thicker, when boring bar radially moves, crankshaft hole can be encountered in the surface of boring bar, the blade of boring cutter is caused to touch thrust surface and cannot process, so, in prior art, the boring bar of boring machine is thinner, working position distance boring head has certain distance again, add man-hour boring bar and can produce larger circular runout, boring bar is shaken very large, cause machining accuracy lower, the Product Precision produced and roughness do not reach necessary requirement.
If Authorization Notice No. is CN 201799623 U, the day for announcing is that the Chinese utility model patent of 2011.04.03 discloses and a kind ofly holds the boring bar with thrust surface for machining spindle, as shown in Figure 1, this boring bar comprises the bar body 90 that axis extends in left-right direction, the two ends of bar body 90 all arrange supporting construction, the cutter mounting frame of multiple installation boring cutter is provided with in the middle part of this bar body 90, cutter mounting frame has the installation position of installing boring cutter, installation position is provided with boring cutter 93, the rear end of boring bar is provided with tooth plate 91, wherein a cutter mounting frame is positioned on tooth plate 91, the rear end of bar body has push pedal 92, push pedal 92 is connected with tooth bar, tooth bar is meshed with tooth plate, drive push pedal side-to-side movement, boring cutter extending radially out or retreating along boring bar on rack drives tooth plate in push pedal.When boring bar stretches into axis hole, the boring cutter on tooth plate is retracted into bar body interior, and when boring bar stretches into after in axis hole, the boring cutter then on tooth plate carries out machining along extending radially out of boring bar, and after completion of processing, boring cutter radial direction is shunk back, and boring bar exits axis hole.
Work pieces process is divided into roughing and fine finishining, above-mentioned boring bar roughing and finishing passes adopt different process tools, usually first roughing is carried out with roughing tool in process, change finishing tool again and carry out fine finishining, add manufacturing procedure, process is complicated, and then causes production efficiency lower; In addition, different boring cutters, between left and right every layout, needs to move left and right bar body when changing process tool, and boring cutter is between left and right every arranging the length increasing boring bar, when boring bar is longer, can produce the large problem of boring bar radial beat eccentricity equally.
Utility model content
The purpose of this utility model is to provide a kind of boring bar, in order to solve in prior art the technical problem needing in twice process to change and mounting cutter causes production efficiency low; The purpose of this utility model is also to provide a kind of boring machine using this boring bar.
For achieving the above object, the utility model adopts following technical scheme:
A kind of boring bar, comprise bar body, described bar body is provided with movable tool rest, and movable tool rest can move along the direction vertical with bar body, the movable two ends place of tool rest on its activity direction is respectively equipped with Cutting tool installation manner fixture, and described Cutting tool installation manner fixture is positioned at the both sides place of bar body.
Described movable tool rest is the tooth block coordinated that leads with bar body, and described Cutting tool installation manner fixture is located at the two ends place of tooth block, in bar body along its length guiding be equipped with engage with tooth block, by moving back and forth the tooth bar ordering about tooth block and move reciprocatingly.
Described tooth bar is relative to bar body eccentric setting, the moving direction of described movable tool rest is first direction, the length bearing of trend of bar body is second direction, and tooth bar and tooth block are overall at the same time perpendicular to the middle part third direction of first direction and second direction being positioned at bar body.
The cross section of tooth bar is arc-shaped surface.
A kind of boring machine, comprise boring bar, boring bar comprises bar body, described bar body is provided with movable tool rest, movable tool rest can move along the direction vertical with bar body, the movable two ends place of tool rest on its activity direction is respectively equipped with Cutting tool installation manner fixture, and described Cutting tool installation manner fixture is positioned at the both sides place of bar body.
Described movable tool rest is the tooth block coordinated that leads with bar body, and described Cutting tool installation manner fixture is located at the two ends place of tooth block, in bar body along its length guiding be equipped with engage with tooth block, by moving back and forth the tooth bar ordering about tooth block and move reciprocatingly.
Described tooth bar is relative to bar body eccentric setting, the moving direction of described movable tool rest is first direction, the length bearing of trend of bar body is second direction, and tooth bar and tooth block are overall at the same time perpendicular to the middle part third direction of first direction and second direction being positioned at bar body.
The cross section of tooth bar is arc-shaped surface.
Advantageous Effects of the present utility model is: boring bar comprises bar body, bar body is provided with movable tool rest, movable tool rest can move along the direction that bar body is vertical, the movable two ends place of tool rest on activity direction is respectively equipped with Cutting tool installation manner fixture, Cutting tool installation manner fixture lays respectively at the both sides place of bar body, when movable tool rest moves perpendicular to bar body, movable tool rest can drive the cutter at two ends to move, the wherein Tool advance of movable tool rest one end, the cutter push broach of the other end, boring bar extend into after in axis hole, do not need centre to exit to change again and mounting cutter, the equal mounting cutter in both sides place of bar body simultaneously, in same tool quantity situation, the length of bar body can be reduced, and then alleviate the radial beat eccentricity of bar body.
Movable tool rest is the tooth block coordinated that leads with bar body, described Cutting tool installation manner fixture is arranged on the two ends place of tooth block, in bar body, guiding is equipped with tooth bar, tooth block engages with tooth bar, and tooth bar moves driving gear block along the axial reciprocating of bar body and moves back and forth along the radial direction of boring bar, and tooth block drives the cutter at two ends to move, tooth block is towards when wherein one end is moved, corresponding end is stretched out towards the outside of bar body, and the other end is shunk back towards the inside of bar body, can be used alternatingly the cutter at tooth block two ends.
Tooth bar is relative to bar body eccentric setting, the moving direction of described movable tool rest is first direction, the length bearing of trend of bar body is second direction, tooth bar and tooth block are overall at the same time perpendicular to the middle part third direction of first direction and second direction being positioned at bar body, because bar body can not be too thick when designing, if tooth bar is eccentric setting not, tooth bar and tooth block entirety would not be positioned at the middle part of bar body and disalignment, opposite side intensity is more weak along the side intensity on third direction is good to cause bar body, tooth bar eccentric setting can make tooth bar and tooth block entirety be positioned at the middle part of bar body, and then ensure that the rigidity of bar body both sides all can reach required requirement.
The cross section of tooth bar is arc-shaped surface, and the mobile mating surface of tooth bar and bar body is arc surface, and tooth bar can automatic aligning adjustment.
Accompanying drawing explanation
Fig. 1 a kind ofly in background technology holds the structural representation with the boring bar of thrust surface for machining spindle;
Fig. 2 is the structural representation of the embodiment 1 of the utility model boring bar;
Fig. 3 is B-B sectional view in Fig. 2;
Fig. 4 is C-C sectional view in Fig. 2;
Fig. 5 is the structural representation of movable tool rest and drive block in the embodiment 2 of the utility model boring bar;
In figure: 1, push rod, 2, extension bar, 3, screw, 4, packing ring, 5, connecting joint, 6, bolt, 7, bar body, 8, tooth bar, 9, tooth block, 10, tight fixed bolt, 11, pad, 12, spindle nose end cap, 13, bearing, 14, spindle nose, 15, the logical lid of spindle nose end, 16, spindle nose spacer, 17, hole back-up ring, 18, round nut, 19, breach, 20, supporting construction, 21, gathering sill, 22, right cutter holder, 23, left cutter holder, 24, driving mechanism, 81, drive block, 82, slide block, 811, rail groove.
Detailed description of the invention
The embodiment 1 of the utility model boring bar, as shown in Figure 2, Figure 3, Figure 4, comprise the bar body 7 extended in left-right direction, the left end of bar body 7 is arranged in the supporting construction 20 of boring machine, right-hand member is arranged on the boring head of boring machine, boring head has the driving mechanism 24 driving boring bar; Bar body 7 is provided with movable tool rest, movable tool rest can along the direction guiding movement vertical with bar body, in the present embodiment, movable tool rest can move along the vertical direction, and the place of two ends up and down of movable tool rest is respectively equipped with Cutting tool installation manner fixture, and described Cutting tool installation manner fixture is positioned at the both sides place of bar body.
Described movable tool rest is the tooth block 9 coordinated that leads with bar body, described tooth block 9 is between left and right every being furnished with two, there is between two tooth blocks the installation position for mounting cutter, it is the gathering sill 21 that two tooth blocks lead that bar body 7 has, gathering sill is upper and lower to be run through, and two tooth blocks 9 can move back and forth along the vertical direction; Described Cutting tool installation manner fixture comprises left cutter holder 23 and right cutter holder 22, the two ends place of tooth block 9 is equipped with Cutting tool installation manner folder, and in bar body 7, guiding is equipped with tooth bar 8, and tooth bar 8 extends along the axis of bar body 7, tooth bar 8 is meshed with tooth block, and the tooth of tooth bar 8 and tooth block 9 is helical teeth; The right-hand member of bar body 7 is coated with push rod 1, and the left end of push rod 1 is connected with tooth bar 8, and push rod 1 can move back and forth in left-right direction, and push rod 1 is with carry-over bar about 8 to move back and forth, and then drives two tooth blocks to move back and forth along the vertical direction simultaneously.
As shown in Figure 4, the size of bar body 7 above-below direction is greater than the size of fore-and-aft direction, and tooth block leads slip along the vertical direction, and tooth block is arranged in bar body 7 along the vertical direction; Tooth bar 8 is relative to bar body eccentric setting, if the above-below direction of bar body 7 is first direction, the bearing of trend of bar body and left and right directions are second direction, tooth block and tooth bar are arranged along the longitudinal direction, if fore-and-aft direction is third direction, third direction is simultaneously vertical with first direction and second direction, and tooth bar and tooth block entirety are positioned at the middle part of bar body on third direction, and then the rigidity of guarantee bar body both sides all can reach required requirement.
The cross section of tooth bar 8 is arc-shaped surface, is provided with chute in bar body, and the arc-shaped surface of tooth bar contacts with slide and coordinates, and tooth bar 8 can adjust by automatic aligning in chute; The front side of tooth block is provided with pad 11, and pad 11 is provided with holding screw 10, pad 11 under the top pressure effect of holding screw 10 with tooth block close fit, ensure that tooth block engages with tooth bar 8 and closely cooperate; The both sides up and down of bar body 7 all have breach 19, and breach 19 is positioned at the rear side of bar body 7 axis, and when installing boring cutter, the cutting edge of boring cutter is towards breach.
Boring bar in use, extend in axis hole by the utility model, and tooth block moves to the middle part of boring bar above-below direction, the cutter of upper/lower terminal all can be ensconced in boring bar body, facilitate Workpiece fixing and clamping; When promotion push rod 1, when tooth block is along gathering sill upward sliding, the boring cutter extension bar body 7 of tooth block upper end is outside, and the boring cutter of lower end is shunk back to the inside of bar body 7; Reverse promotion push rod 1, left and right tooth block is along gathering sill slide downward, and the boring cutter extension bar body 7 of tooth block lower end is outside, and the boring cutter of upper end is shunk back to the inside of bar body 7; Like this, drive push rod 1 be with carry-over bar 8 to move, tooth block moving radially along boring bar, stretches out boring bar outside for rough machined boring cutter and carries out roughing, for accurately machined boring cutter shrink back back boring bar inside; After roughing, reverse drive push rod 1, push rod 1 is with carry-over bar 8 oppositely movement, the oppositely movement of tooth block, changes boring cutter and carries out fine finishining, like this, boring bar is not needed to exit from axis hole in twice process, eliminate the process once changing mounting cutter simultaneously, save machining period, enhance productivity.
Conveniently boring bar is installed, the right-hand member of bar body 7 is provided with connecting joint 5, push rod 1 is installed in connecting joint 5, the right-hand member of push rod 1 is fitted with extension bar 2, push rod 1 and extension bar 2 are fixed together by tight fixed bolt, bar body 7 is fixed by bolt 6 and connecting joint 5, and the right side of connecting joint 5 is provided with the screw 3 for being connected with driving mechanism 24, is provided with packing ring 4 between bar body 7 and connecting joint 5; The left end of bar body 7 is provided with spindle nose 14, spindle nose 14 is installed in bar body 7, bearing 13 is provided with between spindle nose and bar body 7, the right-hand member of spindle nose is provided with spindle nose end cap 12, spindle nose is provided with spindle nose spacer 16 in the left side of bearing and spindle nose end leads to lid 15, the left side that spindle nose end leads to lid 15 is provided with hole back-up ring 17, and spindle nose 14 is provided with round nut 18 in the left side of spindle nose spacer.
The embodiment 2 of the utility model boring bar, as shown in Figure 5, movable tool rest as different from Example 1 in the present embodiment is slide block 82, slide block 82 moves back and forth along the direction of vertical rod body, the drive block 81 be provided with in bar body, drive block extends along the axis of bar body, and can move back and forth along the axis direction of bar body, drive block 81 is provided with rail groove 811, rail groove extends along the activity direction of slide block 82 and tilts along vertical and slide block 82 activity direction, slide block 82 is provided with projection 821, projection 821 and rail groove 811 are slidably matched, when drive block 81 moves back and forth along the axis of bar body, slide block 82 is driven to move back and forth along the direction perpendicular to bar body axis.
The embodiment 1 of the utility model boring machine, comprises lathe bed and boring bar, and as shown in Figure 2 and Figure 3, lathe bed is provided with boring machine head and supporting construction 20, and supporting construction 20 comprises base, and base is provided with alignment pin and set bolt; The two ends of boring bar are rotated respectively and are assemblied in boring machine head and supporting construction, and the boring cutter on boring bar is positioned at the middle part of boring bar, and the two ends of boring bar all have support, decrease boring bar radial direction and rock, and as above, for avoiding repetition, therefore not to repeat here for the specific descriptions of boring bar.
Claims (8)
1. a boring bar, comprise bar body, described bar body is provided with movable tool rest, movable tool rest can move along the direction vertical with bar body, it is characterized in that: the two ends place of movable tool rest on its activity direction is respectively equipped with Cutting tool installation manner fixture, and described Cutting tool installation manner fixture is positioned at the both sides place of bar body.
2. boring bar according to claim 1, it is characterized in that: described movable tool rest is the tooth block coordinated that leads with bar body, described Cutting tool installation manner fixture is located at the two ends place of tooth block, in bar body along its length guiding be equipped with engage with tooth block, by moving back and forth the tooth bar ordering about tooth block and move reciprocatingly.
3. boring bar according to claim 2, it is characterized in that: described tooth bar is relative to bar body eccentric setting, the moving direction of described movable tool rest is first direction, the length bearing of trend of bar body is second direction, and tooth bar and tooth block are overall at the same time perpendicular to the middle part third direction of first direction and second direction being positioned at bar body.
4. the boring bar according to Claims 2 or 3, is characterized in that: the cross section of tooth bar is arc-shaped surface.
5. a boring machine, comprise boring bar, boring bar comprises bar body, described bar body is provided with movable tool rest, movable tool rest can move along the direction vertical with bar body, it is characterized in that: the two ends place of movable tool rest on its activity direction is respectively equipped with Cutting tool installation manner fixture, and described Cutting tool installation manner fixture is positioned at the both sides place of bar body.
6. boring machine according to claim 5, it is characterized in that: described movable tool rest is the tooth block coordinated that leads with bar body, described Cutting tool installation manner fixture is located at the two ends place of tooth block, in bar body along its length guiding be equipped with engage with tooth block, by moving back and forth the tooth bar ordering about tooth block and move reciprocatingly.
7. boring machine according to claim 6, it is characterized in that: described tooth bar is relative to bar body eccentric setting, the moving direction of described movable tool rest is first direction, the length bearing of trend of bar body is second direction, and tooth bar and tooth block are overall at the same time perpendicular to the middle part third direction of first direction and second direction being positioned at bar body.
8. the boring machine according to claim 6 or 7, is characterized in that: the cross section of tooth bar is arc-shaped surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520335725.6U CN204735730U (en) | 2015-05-22 | 2015-05-22 | Boring bar and use boring machine of this boring bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520335725.6U CN204735730U (en) | 2015-05-22 | 2015-05-22 | Boring bar and use boring machine of this boring bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204735730U true CN204735730U (en) | 2015-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520335725.6U Expired - Fee Related CN204735730U (en) | 2015-05-22 | 2015-05-22 | Boring bar and use boring machine of this boring bar |
Country Status (1)
| Country | Link |
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| CN (1) | CN204735730U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115178763A (en) * | 2022-07-27 | 2022-10-14 | 襄阳长源朗弘科技有限公司 | Crankshaft hole line boring cutter and cylinder body machining device |
-
2015
- 2015-05-22 CN CN201520335725.6U patent/CN204735730U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115178763A (en) * | 2022-07-27 | 2022-10-14 | 襄阳长源朗弘科技有限公司 | Crankshaft hole line boring cutter and cylinder body machining device |
| CN115178763B (en) * | 2022-07-27 | 2024-07-30 | 襄阳长源朗弘科技有限公司 | Crankshaft hole line boring cutter and cylinder body processing device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151104 Termination date: 20190522 |