CN203357022U - Connecting rod back shoulder position chambering jig - Google Patents
Connecting rod back shoulder position chambering jig Download PDFInfo
- Publication number
- CN203357022U CN203357022U CN 201320301220 CN201320301220U CN203357022U CN 203357022 U CN203357022 U CN 203357022U CN 201320301220 CN201320301220 CN 201320301220 CN 201320301220 U CN201320301220 U CN 201320301220U CN 203357022 U CN203357022 U CN 203357022U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- drill
- back porch
- packing ring
- drill bit
- 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
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Abstract
The utility model relates to a connecting rod back shoulder position chambering jig which comprises a jig body and a drilling assembly arranged on one side of the jig body. The drilling assembly comprises a drill plate and a drill bushing arranged in the drill plate in a sleeved mode. A three-point fixing assembly used for enabling the central axis of a connecting rod to deviate a certain angle alpha from the central axis of the drill plate is arranged on the surface of the jig body, and the range of the angle alpha is 5-20 degrees. The three-point fixing assembly is composed of a small-head hole locating column used for locating a small head of the connecting rod, a large head locking mechanism used for locking a large head of the connecting rod, and a side face locating column used for locating and supporting the left side face of the connecting rod. The connecting rod back shoulder position chambering jig enables the central axis of the connecting rod to deviate the certain angle alpha from the central axis of the drill bushing, so that at machining time, along with continuous action and deepening of a drill bit, the drill bit enables the connecting rod to rotate in the direction parallel to the deepening direction of the drill bit. Consequently, force which is generated by rotation of the connecting rod and enables the drill bit to break is reduced and even eliminated, the service life of the drill bit is prolonged, and production cost is reduced.
Description
Technical field
The utility model relates to the automobile connecting bar manufacture field, particularly a kind of connecting rod back porch position broaching fixture.
Background technology
Connecting rod is one of critical piece of engine, and its requirement on machining accuracy is higher.Usually, the operation that must carry out the reaming of back porch position before the processing connecting rod bolt holes.Add man-hour carrying out the position reaming of connecting rod back porch, because bolt hole center's axis is parallel with the connecting rod central axis, prior art is that the connecting rod central axis is parallel with the central axis of drill bushing.Because connecting rod is irregular part, its back porch position is to be with acclive curved surface.The milling plane of drill bit with by milling plane (back porch position curved surface), be not parallel to each other, have certain angle between two planes, cause drill bit often easily to fracture, reduced the service life of drill bit, increased the production cost of connecting rod.
The utility model content
The technical problems to be solved in the utility model is: add the man-hour drill bit through the deficiency of normal off in order to overcome the position reaming of connecting rod back porch, the utility model provides a kind of connecting rod back porch position broaching fixture.
The utility model solves the technical scheme that its technical problem adopts: a kind of connecting rod back porch position broaching fixture, comprise clamp body and the boring assembly that is arranged on clamp body one side, described boring assembly comprises bushing plate and is set in the drill bushing in bushing plate, be provided with 3 fixation kits of the central axis certain angle α for making connecting rod center axis deviation drill bushing on described clamp body surface, the scope of described angle [alpha] is 5 °～20 °, described 3 fixation kits are by the microcephaly hole locating dowel for the positioning linkage rod microcephaly, for the large head locking mechanism of locking big end with for the side locating dowel composition of location and support connecting rod left surface, described connecting rod left surface is away from the side by milling back porch position curved surface on big end.
Described angle [alpha] is 10 ° or 15 °.
Described large head locking mechanism comprises the large hook plate that is fixed on the clamp body surface, be fixed on the packing ring on large hook plate, and for support and stud and the lock screw of locking big end, described packing ring middle part is provided with perforate, and described stud all is fixedly connected with at the packing ring tapping with packing ring with lock screw.
In order to adapt to the back porch position curved surface of different gradient, the fixed position of described stud and lock screw is adjustable in the packing ring perforate.
The beneficial effects of the utility model are, connecting rod back porch of the present utility model position broaching fixture, make the central axis certain angle α of connecting rod center axis deviation drill bushing, adding man-hour, by milling plane (back porch position curved surface) basically can with the milling plane keeping parallelism of drill bit, thereby minimizing has even been eliminated connecting rod and has been rotated the power that makes broken drill, has increased the service life of drill bit, has reduced production cost.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of the optimum embodiment of connecting rod back porch of the present utility model position broaching fixture.
In figure 1, clamp body, 2, microcephaly hole locating dowel, 3, drill bushing, 4, bushing plate, 5, large hook plate, 6, stud, 7, lock screw, 8, packing ring, 8-1, packing ring perforate, 9, side locating dowel, 10, connecting rod, L1, connecting rod central axis, the central axis of L2, drill bushing, on M, big end away from the side of back porch position, N, by milling back porch position curved surface.
The specific embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As shown in Figure 1, a kind of connecting rod back porch of the present utility model position broaching fixture, comprise clamp body 1 and the boring assembly that is arranged on clamp body 1 one sides, described boring assembly comprises bushing plate 4 and is set in the drill bushing 3 in bushing plate 4, on described clamp body 1 surface, be provided with for making connecting rod axis L 1 depart from 3 fixation kits of the axis L 2 certain angle α of drill bushing 3, described angle [alpha] is 15 °, described 3 fixation kits are by the microcephaly hole locating dowel 2 for the positioning linkage rod microcephaly, for the large head locking mechanism of locking big end with for side locating dowel 9 compositions of location and the left M of support connecting rod, described connecting rod left surface M is away from the side by milling back porch position curved surface N on big end.
Described large head locking mechanism comprises the large hook plate 5 that is fixed on clamp body 1 surface, be fixed on the packing ring 8 on large hook plate 5, and for support and stud 6 and the lock screw 7 of locking big end, described packing ring 8 middle parts are provided with the strip perforate 8-1 on vertical direction, and described stud 6 all is fixedly connected with at packing ring perforate 8-1 place with packing ring 8 with lock screw 7.The fixed position of described stud 6 and lock screw 7 is adjustable in packing ring perforate 8-1.
The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, the relevant staff can, in the scope that does not depart from this utility model technological thought, carry out various change and modification fully.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to the claim scope.
Claims (4)
1. a connecting rod back porch position broaching fixture, comprise clamp body (1) and be arranged on the boring assembly of clamp body (1) one side, described boring assembly comprises bushing plate (4) and is set in the drill bushing (3) in bushing plate (4), it is characterized in that: on described clamp body (1) surface, be provided with for making connecting rod axis L 1 depart from 3 fixation kits of the axis L 2 certain angle α of drill bushing (3), the scope of described angle [alpha] is 5 °～20 °, described 3 fixation kits are by the microcephaly hole locating dowel (2) for the positioning linkage rod microcephaly, for the large head locking mechanism of locking big end with for location and the side locating dowel (9) of support connecting rod left surface M composition, described connecting rod left surface M is away from the side by milling back porch position curved surface N on big end.
2. connecting rod back porch as claimed in claim 1 position broaching fixture, it is characterized in that: described angle [alpha] is 10 ° or 15 °.
3. connecting rod back porch as claimed in claim 1 position broaching fixture, it is characterized in that: described large head locking mechanism comprises the large hook plate (5) that is fixed on clamp body (1) surface, be fixed on the packing ring (8) on large hook plate (5), and for support and stud (6) and the lock screw (7) of locking big end, described packing ring (8) middle part is provided with perforate (8-1), and described stud (6) is all located to be fixedly connected with in packing ring perforate (8-1) with packing ring (8) with lock screw (7).
4. connecting rod back porch as claimed in claim 3 position broaching fixture, it is characterized in that: the fixed position of described stud (6) and lock screw (7) is adjustable in packing ring perforate (8-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320301220 CN203357022U (en) | 2013-05-28 | 2013-05-28 | Connecting rod back shoulder position chambering jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320301220 CN203357022U (en) | 2013-05-28 | 2013-05-28 | Connecting rod back shoulder position chambering jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203357022U true CN203357022U (en) | 2013-12-25 |
Family
ID=49804843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320301220 Expired - Fee Related CN203357022U (en) | 2013-05-28 | 2013-05-28 | Connecting rod back shoulder position chambering jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203357022U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934706A (en) * | 2014-03-25 | 2014-07-23 | 常州大学 | Workpiece inclined hole machining device |
| CN104647080A (en) * | 2014-06-14 | 2015-05-27 | 柳州市安龙机械设备有限公司 | Drilling clamp for opening pin hole of connecting rod bolt of air compressor |
-
2013
- 2013-05-28 CN CN 201320301220 patent/CN203357022U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934706A (en) * | 2014-03-25 | 2014-07-23 | 常州大学 | Workpiece inclined hole machining device |
| CN103934706B (en) * | 2014-03-25 | 2016-04-13 | 常州大学 | workpiece slant hole processing device |
| CN104647080A (en) * | 2014-06-14 | 2015-05-27 | 柳州市安龙机械设备有限公司 | Drilling clamp for opening pin hole of connecting rod bolt of air compressor |
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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: 20131225 Termination date: 20210528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |