CN204935135U - Knuckle boring grab - Google Patents
Knuckle boring grab Download PDFInfo
- Publication number
- CN204935135U CN204935135U CN201520612847.5U CN201520612847U CN204935135U CN 204935135 U CN204935135 U CN 204935135U CN 201520612847 U CN201520612847 U CN 201520612847U CN 204935135 U CN204935135 U CN 204935135U
- Authority
- CN
- China
- Prior art keywords
- support tube
- depression bar
- knuckle
- major axis
- slide block
- 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
Abstract
Present patent application relate to a kind of fixture, disclose a kind of knuckle boring grab, comprise support tube, in support tube, slidably connect slide block, between slide block and support tube, be provided with elastic component, support tube top is installed with connecting rod, connecting rod is hinged with fastener, and fastener comprises page and nextpage, and upper page and nextpage are bolted fixing, connecting rod top is hinged with depression bar, and depression bar is connected on support tube away from the threaded one end of pin joint; Present patent application is difficult to the problem ensured and scroll chuck clamping force is excessive for the major axis drilling quality of knuckle in prior art; Provide one and both can ensure drilling quality, the knuckle boring grab that major axis surface sustains damage can be prevented again.
Description
Technical field
The utility model relate to a kind of fixture, has been specifically related to a kind of knuckle boring grab.
Background technology
Knuckle, also known as " goat's horn ", is one of strength member in steering axle of automobile, and vehicle steadily can be made to travel and sensitive transmission travel direction; The function of knuckle transmits and bears automotive front load, supports and drive front-wheel rotate around stub and make motor turning; Under motoring condition, it subjects changeable shock loading, therefore, requires that it has very high intensity.
Knuckle is the hinge of wheel steering, generally in fork-shaped.Upper and lower two forks have installs two coaxial apertures of stub, and knuckle axle journal is used for installing wheel.On knuckle, two ears of pin-and-hole are connected with the fist shape part at front axle two ends by stub, make front-wheel deflect certain angle around stub and to make motor turning.In order to reduce wearing and tearing, press-in bronze bushing in knuckle pin-and-hole, the lubrication of lining injects grease lubrication with the oil nozzle be contained on knuckle.For making to turn to flexibly, under knuckle, between ear and front axle fist shape part, bearing is housed.Adjustment pad is also equipped with knuckle between ear and fist shape part, to adjust gap therebetween.
Major axis class knuckle needs when manufacturing to carry out drilling operating, generally adopts the mode of manual clamping or three-jaw self-centering chuck to clamp when traditional major axis class knuckle is holed; The mode of manual clamping requires high to the skill proficiency of workman, and when drilling operation, the rotary head of drilling machine constantly rotates, the major axis of knuckle can be made constantly to rock, the hand strength of operating personnel is limited, be difficult to the major axis of knuckle to fix, thus cause the difficult quality of holing to be guaranteed; When adopting scroll chuck to clamp, the longitudinal end contact surface of scroll chuck and knuckle is large, and the clamping force of scroll chuck is comparatively large, easily damage is produced to major axis, make major axis surface occur impression, and when making knuckle, the requirement that all demand fulfillment is certain of the major axis surface quality of knuckle and profile.
Utility model content
The purpose of this utility model is to provide one both can ensure drilling quality, can prevent again the knuckle boring grab that major axis surface sustains damage.
The technical solution of the utility model is: knuckle boring grab, comprise support tube, slide block is slidably connected in support tube, be provided with elastic component between slide block and support tube, support tube top is installed with connecting rod, and connecting rod is hinged with fastener, fastener comprises page and nextpage, upper page and nextpage are bolted fixing, and connecting rod top is hinged with depression bar, and depression bar is connected on support tube away from the threaded one end of pin joint.
Know-why of the present utility model and beneficial effect are: depression bar is swung to the position away from support tube, major axis is inserted in support tube, promotion slide block moves downward by major axis, elastic component is compressed, then is swung to by depression bar on the position close with support tube, is then threaded on support tube by depression bar, be threaded is that a kind of connection is reliable, the simple connected mode of connected mode, facilitates depression bar and is arranged on support tube, or disassemble from support tube.
Major axis is clipped between the two by depression bar and slide block cooperation, tentatively fixes; Then by the swing in the upper page of fastener and nextpage direction in opposite directions, be fastened on major axis, the upper page of fastener and the shape of nextpage near the side of major axis, need the shape being designed to coordinate with major axis, so just major axis can be clamped, at use bolt by upper page and lower page fixing, and fully major axis is clamped; Fastener, depression bar and slide block three coordinate, and are fixed on firmly in fixture of the present utility model by major axis.
After major axis is clamped, more whole fixture of the present utility model is transferred on drilling machine, use scroll chuck to be clamped by support tube, thus avoid scroll chuck and directly clamp major axis, and make major axis surface occur impression; Start to hole to major axis, and major axis is fixed by fixture of the present utility model, thus ensure that the drilling quality of major axis.
Further: bottom support tube, to have groove, slidably connect nutted rod in groove, elastic component is connected on nutted rod away from one end of slide block, and support tube top is provided with fixed block, fixed block is provided with threaded rod, and threaded rod is connected on nutted rod by nut through nutted rod.After major axis being fixed on fixture of the present utility model, pass through screw on nut, because fixed block is motionless, so nutted rod can be made to move near the direction of slide block, nutted rod can further compression elastic piece, thus makes elastic component become large to the thrust of slide block, the rate of tension of elastic component is improved, thus the clamping force that can increase between slide block and depression bar, and then major axis is fixed more stable, finally re-use fastener and major axis fixed.
Further: nutted rod is slidably connected on support barrel away from one end of groove.If during nutted rod motion, only have side to suffer restraints, its other end is subject to the elastic force of spring, is easy to offset; When improving the rate of tension of elastic component, slide in nutted rod one end on support barrel, move along threaded rod in side, the equal Constrained in nutted rod both sides, is subject to the elastic force of spring, and skew is less likely to occur, and improves the stability of nutted rod when moving.
Further: the top of the tie point that support tube is threaded with depression bar is provided with the limited block for spacing depression bar.The setting of limited block, after can ensureing that depression bar swing puts in place, can not continue to swing, facilitate the determination of depression bar swing position; When being threaded, if use bolt to connect, after being screwed to a certain degree, if when continuing to screw bolt, bolt can make depression bar move near the direction of support tube, and depression bar is bent, therefore the setting of limited block, also can ensure the part depression bar on tie point, can not bend.
Further: elastic component is spring.Spring is easily compressed, and when installing major axis, easily makes to move downward at slide block; Also the rate of tension of spring is easily improved.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model knuckle boring grab embodiment.
Detailed description of the invention
Below by detailed description of the invention, the utility model is described in further detail:
Reference numeral in Figure of description comprises: nut 1, threaded rod 2, fixed block 3, support tube 4, fastener 5, depression bar 6, bolt 7, limited block 8, second bolt 9, slide block 10, spring 11, nutted rod 12, groove 13.
Embodiment is substantially as shown in Figure 1: knuckle boring grab, comprise support tube 4, slide block 10 is slidably connected in support tube 4, support tube 4 top is installed with connecting rod, connecting rod is hinged with fastener 5, fastener 5 comprises page and nextpage, upper page and nextpage are connected and fixed by bolt 7, connecting rod top is hinged with depression bar 6, be connected on support tube 4 by the second bolt 9 on the right side of depression bar 6, the top of the tie point that support tube 4 is threaded with depression bar 6 is provided with the limited block 8 for spacing depression bar 6, groove 13 is had bottom support tube 4, nutted rod 12 is slidably connected in groove 13, spring 11 is connected with between nutted rod 12 and slide block 10, support tube 4 top is provided with fixed block 3, fixed block 3 is provided with threaded rod 2, threaded rod 2 is connected on nutted rod 12 through nutted rod 12 by nut 1, nutted rod 12 right-hand member is slidably connected on support tube 4 wall.
Depression bar 6 is swung to the position away from support tube 4, major axis is inserted in support tube 4, promotion slide block 10 moves downward by major axis, spring 11 is compressed, again depression bar 6 is swung to on support tube 4 position, depression bar 6 contacts with limited block 8, is then connected on support tube 4 by the second bolt 97 by depression bar 6.
By screw on nut 1, because fixed block 3 is motionless, so nutted rod 12 can be made to move near the direction of slide block 10, the further Compress Spring 11 of nutted rod 12 meeting, thus make the thrust of spring 11 pairs of slide blocks 10 become large, the rate of tension of elastic component is improved, improves the clamping force of depression bar 6 and slide block 10.
Depression bar 6 and slide block 10 coordinate and are clipped between the two by major axis, tentatively fix; Then by the swing in the upper page of fastener 5 and nextpage direction in opposite directions, be fastened on major axis, the upper page of fastener 5 and the shape of nextpage near the side of major axis, need the shape being designed to coordinate with major axis, so just major axis can be clamped, at use bolt 7 by upper page and lower page fixing, and fully major axis is clamped; Fastener 5, depression bar 6 and slide block 10 three coordinate, and are fixed on firmly in fixture of the present utility model by major axis.
After major axis is clamped, more whole fixture of the present utility model is transferred on drilling machine, be by scroll chuck, support tube 4 is clamped, start to hole to major axis.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. record the content that may be used for explaining claim.
Claims (5)
1. knuckle boring grab, it is characterized in that, comprise support tube, in support tube, slidably connect slide block, between slide block and support tube, be provided with elastic component, support tube top is installed with connecting rod, connecting rod is hinged with fastener, and fastener comprises page and nextpage, and upper page and nextpage are bolted fixing, connecting rod top is hinged with depression bar, and depression bar is connected on support tube away from the threaded one end of pin joint.
2. knuckle boring grab according to claim 1, it is characterized in that: bottom described support tube, have groove, nutted rod is slidably connected in groove, elastic component is connected on nutted rod away from one end of slide block, support tube top is provided with fixed block, fixed block is provided with threaded rod, and threaded rod is connected on nutted rod by nut through nutted rod.
3. knuckle boring grab according to claim 2, is characterized in that: described nutted rod is slidably connected on support barrel away from one end of groove.
4. knuckle boring grab according to claim 3, is characterized in that: the top of the tie point that described support tube is threaded with depression bar is provided with the limited block for spacing depression bar.
5. knuckle boring grab according to claim 4, is characterized in that: described elastic component is spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520612847.5U CN204935135U (en) | 2015-08-14 | 2015-08-14 | Knuckle boring grab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520612847.5U CN204935135U (en) | 2015-08-14 | 2015-08-14 | Knuckle boring grab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204935135U true CN204935135U (en) | 2016-01-06 |
Family
ID=55002591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520612847.5U Expired - Fee Related CN204935135U (en) | 2015-08-14 | 2015-08-14 | Knuckle boring grab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204935135U (en) |
-
2015
- 2015-08-14 CN CN201520612847.5U patent/CN204935135U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20160106 Termination date: 20160814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |