CN207534449U - A kind of fixture for crankshaft counter balance process - Google Patents
A kind of fixture for crankshaft counter balance process Download PDFInfo
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- CN207534449U CN207534449U CN201721683003.5U CN201721683003U CN207534449U CN 207534449 U CN207534449 U CN 207534449U CN 201721683003 U CN201721683003 U CN 201721683003U CN 207534449 U CN207534449 U CN 207534449U
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- eccentric
- circle
- eccentric clamping
- clamping
- center
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Abstract
The utility model is related to a kind of fixture for crankshaft counter balance process, including the eccentric clamping I being connect with the small head end of bent axle and the eccentric clamping II being connect with crankshaft flange end；The eccentric clamping I and eccentric clamping are equipped with mounting hole at II axle center；The upper eccentric orfice center of circle is located along the same line with one group of balance weight off-centre operation center of circle, the lower eccentric orfice center of circle is located along the same line with four groups of balance weight off-centre operation centers of circle, the left eccentric orfice center of circle is located along the same line with two groups of balance weight off-centre operation centers of circle, and the right eccentric orfice center of circle is located along the same line with three groups of balance weight off-centre operation centers of circle.The fixture proposed on center lathe using the application, is realized shaft member in center lathe machining process and is rotated around every group of balance weight center of circle, engine lathe processing shaft member is achieved.
Description
Technical field
The utility model is related to Crankshaft Machining equipment technology fields more particularly to one kind to be used for crankshaft counter balance process
Fixture.
Background technology
Bent axle is by trunnion, rod journal crank arm, balance weight, and the part such as small head end and flange end forms.It is wherein flat
Weighing apparatus block is made using off-centre operation as original paper by lathe turning.Lathe used in Crankshaft Machining mainly with vertical knee-type milling machine or crouches at present
Based on formula boring machine, the processing why vertical knee-type milling machine or horizontal boring machine are adapted to bent axle is primarily due to above two machine
Shaft member can be made to be rotated around every group of balance weight center of circle in machining process.But due to above two machine price height
It is high, so that many middle-size and small-size processing enterprises hang back.
The price of center lathe is significantly lower than vertical knee-type milling machine and horizontal boring machine, but center lathe, which can not carry out bent axle, to be added
Work, being primarily due to center lathe can not be such that shaft member is rotated around every group of balance weight center of circle in machining process.
In order to make up the defects of center lathe can not carry out shaft member processing, the application proposes a kind of be applied on center lathe
Fixture, install after the fixture so that engine lathe processing shaft member is achieved.
Utility model content
The utility model proposes a kind of fixtures for crankshaft counter balance process.
What the technical solution of the utility model was realized in：A kind of fixture for crankshaft counter balance process, packet
Include the bent axle equipped with 4 groups of balance weights, 4 groups of balance weights are respectively that one group of balance weight, two groups of balance weights, three groups of balance weights and four groups are put down
Weigh block, further includes the eccentric clamping I being connect with the small head end of bent axle and the eccentric clamping II being connect with crankshaft flange end；It is described inclined
It is equipped with mounting hole at II axle center of heart collet I and eccentric clamping, the mounting hole on eccentric clamping I is adapted with the small head end of bent axle,
Mounting hole on eccentric clamping II is adapted with crankshaft flange end；The eccentric clamping I and eccentric clamping II are away from mounting hole
Side is all provided with there are four eccentric orfice, and four eccentric orfices are respectively to go up eccentric orfice, lower eccentric orfice, left eccentric orfice and right eccentric orfice, partially
Eccentric orfice on heart collet I and eccentric clamping II corresponds；The upper eccentric orfice center of circle is located at one group of balance weight off-centre operation center of circle
On same straight line, the lower eccentric orfice center of circle is located along the same line with four groups of balance weight off-centre operation centers of circle, the left eccentric orfice center of circle and two
The group balance weight off-centre operation center of circle is located along the same line, and the right eccentric orfice center of circle is located at three groups of balance weight off-centre operation centers of circle with always
On line；The vertical range of each eccentric orfice circle center distance installation axially bored line extended line is equal, each eccentric orfice circle center distance peace
The vertical range for filling axially bored line extended line is eccentricity；Threaded hole is equipped on II outer wall of the eccentric clamping I and eccentric clamping,
It is threadedly coupled fastening bolt in threaded hole, the threaded hole on the eccentric clamping I is communicated with the mounting hole on eccentric clamping I,
Threaded hole on the eccentric clamping II is communicated with the mounting hole on eccentric clamping II.
Preferably, affixed installing plate, eccentric clamping I and eccentric clamping on the eccentric clamping I and eccentric clamping II
Installing plate on II is two, and two installing plates on two installing plates and eccentric clamping II on eccentric clamping I are pairs of
Claim distribution；Location hole is equipped on two installing plates on two installing plates and eccentric clamping II on the eccentric clamping I, often
A fishbolt is threadedly coupled in a location hole.
Preferably, the connecting rod neck on one group of balance weight is located between two installing plates on eccentric clamping I, it is described
Connecting rod neck on four groups of balance weights is located between two installing plates on eccentric clamping II.
By adopting the above-described technical solution, the utility model has advantageous effect following prominent：
1st, the fixture proposed on center lathe using the application, realize in center lathe machining process shaft member around
Every group of balance weight center of circle is rotated, and engine lathe processing shaft member is achieved.
2nd, eccentric clamping I and eccentric clamping II are mounted on bent axle, are fixed for the first time by fastening bolt, Ran Houzai
Secondary fixation implements bent axle by fishbolt, dual fixed mode may insure eccentric clamping I and eccentric clamping II with
The fastness of bent axle connection avoids crankshaft turning and comes off in the process.
3rd, it replaces other eccentric orfices after turning terminates to connect with lathe, different eccentric orfices can complete different groups and put down
The processing of weighing apparatus block.
Description of the drawings
Fig. 1 is the utility model dimensional structure diagram.
Fig. 2 is the utility model positive structure diagram.
Fig. 3 is the utility model overlooking the structure diagram.
Fig. 4 is Fig. 2 left view structural representations.
Fig. 5 is the utility model and center lathe connection relation structure diagram.
Shown in figure：
1st, bent axle, 2, eccentric clamping I, 3, II, 4, one group of balance weight of eccentric clamping, 5, two groups of balance weights, 6, three groups of balances
Block, 7, four groups of balance weights, 8, upper eccentric orfice, 9, lower eccentric orfice, 10, left eccentric orfice, 11, right eccentric orfice, 12, fastening bolt,
13rd, installing plate, 14, fishbolt, 15, mounting hole, 16, front thimble, 17, back center.
Specific embodiment
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the utility model part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, those of ordinary skill in the art's all other embodiments obtained without creative efforts, belongs to
The range of the utility model protection.
As shown in Figure 1,2,3, 4, the utility model includes the bent axle 1 for being equipped with 4 groups of balance weights, is connect with 1 small head end of bent axle
Eccentric clamping I 2 and the eccentric clamping II 3 that is connect with 1 flange end of bent axle.In order to facilitate narration, according to apart from eccentric clamping I
Every group balance weight is numbered in 2 sequence from the near to the distant, and number is that one group of 4, two groups of balance weight, 5, three groups of balance weight is put down respectively
Weigh block 6 and four groups of balance weights 7.
It is equipped with mounting hole 15 at II 3 axle center of the eccentric clamping I 2 and eccentric clamping, the mounting hole on eccentric clamping I 2
15 are adapted with 1 small head end of bent axle, and the mounting hole 15 on eccentric clamping II 3 is adapted with 1 flange end of bent axle.The eccentric clamping
I 2 and eccentric clamping II 3 be all provided with away from the side of mounting hole 15 there are four eccentric orfice, four eccentric orfices be respectively upper eccentric orfice 8,
Lower eccentric orfice 9, left eccentric orfice 10 and right eccentric orfice 11, the eccentric orfice on eccentric clamping I 2 and eccentric clamping II 3 correspond.Such as
Fig. 2, shown in 4, upper 8 center of circle of eccentric orfice is located along the same line with one group of 4 off-centre operation center of circle of balance weight, lower 9 center of circle of eccentric orfice with
Four groups of 7 off-centre operation centers of circle of balance weight are located along the same line, and left 10 center of circle of eccentric orfice is located at two groups of 5 off-centre operation centers of circle of balance weight
On same straight line, right 11 center of circle of eccentric orfice is located along the same line with three groups of 6 off-centre operation centers of circle of balance weight.Each eccentric orfice center of circle
Vertical range apart from 15 axis extended line of mounting hole is equal, each 15 axis extended line of eccentric orfice circle center distance mounting hole
Vertical range is eccentricity.
Threaded hole is equipped on II 3 outer wall of the eccentric clamping I 2 and eccentric clamping, fastening is threadedly coupled in threaded hole
Bolt 12, the threaded hole on the eccentric clamping I 2 is communicated with the mounting hole 15 on eccentric clamping I 2, on the eccentric clamping II 3
Threaded hole communicated with the mounting hole 15 on eccentric clamping II 3.1 small head end of bent axle is inserted into the mounting hole on eccentric clamping I 2
In 15,1 small head end of bent axle can be fixed by then tightening the fastening bolt 12 on eccentric clamping I 2.1 flange end of bent axle is inserted into
In mounting hole 15 on eccentric clamping II 3, the fastening bolt 12 then tightened on eccentric clamping II 3 can be by 1 flange end of bent axle
It is fixed.
In order to further increase the fixed effect of II 3 pairs of bent axles 1 of eccentric clamping I 2 and eccentric clamping, the eccentric clamping I 2
With installing plate 13 affixed on eccentric clamping II 3, as shown in figure 3, installing plate 13 on eccentric clamping I 2 and eccentric clamping II 3 is equal
It it is two, two installing plates 13 on two installing plates 13 and eccentric clamping II 3 on eccentric clamping I 2 are symmetrically distributed.Partially
Location hole is equipped on two installing plates 13 on two installing plates 13 and eccentric clamping II 3 on heart collet I 2, it is each to position
A fishbolt 14 is threadedly coupled in hole.Connecting rod neck on one group of balance weight 4 is located at two peaces on eccentric clamping I 2
Between loading board 13, the connecting rod neck on one group of balance weight 4 can be held out against by tightening the fishbolt 14 of both sides on eccentric clamping I 2.
Connecting rod neck on four groups of balance weights 7 is located between two installing plates 13 on eccentric clamping II 3, tightens eccentric clamping II 3
The fishbolt 14 of upper both sides can hold out against the connecting rod neck on four groups of balance weights 7.
When specifically used, first eccentric clamping I 2 and eccentric clamping II 3 are mounted on bent axle 1, by fastening bolt 12 into
Row is first fixed, then implements secondary fixation to bent axle 1 by fishbolt 14 again, dual fixed mode may insure bias
The fastness that collet I 2 and eccentric clamping II 3 are connect with bent axle 1 is avoided and is come off in 1 turning process of bent axle.Then it will fix
Bent axle 1 be attached with center lathe, connection mode is that the front thimble 16 being connected with lathe spindle turntable is headed into cam lock
In one of eccentric orfice on first I 2, then the back center 17 on lathe headed on eccentric clamping II 3 eccentric orfice,
The eccentric orfice on the eccentric clamping I 2 that is connect with front thimble 16 of eccentric orfice on the eccentric clamping II 3 connected with back center 17 is
Two opposite eccentric orfices of position.After bent axle 1 is connected firmly with center lathe, turning process is proceeded by.Turning terminates it
It replaces other eccentric orfices afterwards to connect with lathe, different eccentric orfices can complete the processing of different groups of balance weights.
By the fixture that the application is used to be proposed on center lathe, shaft member in center lathe machining process is realized
It is rotated around every group of balance weight center of circle, engine lathe processing shaft member is achieved.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (3)
1. a kind of fixture for crankshaft counter balance process, the bent axle including being equipped with 4 groups of balance weights, 4 groups of balance weight difference
For one group of balance weight, two groups of balance weights, three groups of balance weights and four groups of balance weights, it is characterised in that：It further includes and the small head end of bent axle
The eccentric clamping I of connection and the eccentric clamping II being connect with crankshaft flange end；II axle center of the eccentric clamping I and eccentric clamping
Place is equipped with mounting hole, and the mounting hole on eccentric clamping I is adapted with the small head end of bent axle, the mounting hole on eccentric clamping II with it is bent
Shaft flange end is adapted；The eccentric clamping I and eccentric clamping II are all provided with away from the side of mounting hole there are four eccentric orfice, four
Eccentric orfice is respectively to go up eccentric orfice, lower eccentric orfice, left eccentric orfice and right eccentric orfice, inclined on eccentric clamping I and eccentric clamping II
Heart hole corresponds；The upper eccentric orfice center of circle is located along the same line with one group of balance weight off-centre operation center of circle, the lower eccentric orfice center of circle with
Four groups of balance weight off-centre operation centers of circle are located along the same line, and the left eccentric orfice center of circle is located at same with two groups of balance weight off-centre operation centers of circle
On straight line, the right eccentric orfice center of circle is located along the same line with three groups of balance weight off-centre operation centers of circle；Each eccentric orfice circle center distance peace
The vertical range of dress axially bored line extended line is equal, and the vertical range of each eccentric orfice circle center distance installation axially bored line extended line is
Eccentricity；Threaded hole is equipped on II outer wall of the eccentric clamping I and eccentric clamping, fastening spiral shell is threadedly coupled in threaded hole
Bolt, the threaded hole on the eccentric clamping I are communicated with the mounting hole on eccentric clamping I, the threaded hole on the eccentric clamping II
It is communicated with the mounting hole on eccentric clamping II.
2. a kind of fixture for crankshaft counter balance process according to claim 1, it is characterised in that：The bias
Affixed installing plate on collet I and eccentric clamping II, the installing plate on eccentric clamping I and eccentric clamping II is two, eccentric
Two installing plates on two installing plates and eccentric clamping II on collet I are symmetrically distributed；Two on the eccentric clamping I
Location hole is equipped on two installing plates on a installing plate and eccentric clamping II, a clamping is threadedly coupled in each location hole
Bolt.
3. a kind of fixture for crankshaft counter balance process according to claim 2, it is characterised in that：Described one group
Connecting rod neck on balance weight is located between two installing plates on eccentric clamping I, and the connecting rod neck on four groups of balance weights is located at
Between two installing plates on eccentric clamping II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721683003.5U CN207534449U (en) | 2017-12-06 | 2017-12-06 | A kind of fixture for crankshaft counter balance process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721683003.5U CN207534449U (en) | 2017-12-06 | 2017-12-06 | A kind of fixture for crankshaft counter balance process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207534449U true CN207534449U (en) | 2018-06-26 |
Family
ID=62617277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721683003.5U Expired - Fee Related CN207534449U (en) | 2017-12-06 | 2017-12-06 | A kind of fixture for crankshaft counter balance process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207534449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951709A (en) * | 2022-05-26 | 2022-08-30 | 中信重工机械股份有限公司 | Finish machining method for heavy multi-eccentric crankshaft journal by using vertical lathe |
-
2017
- 2017-12-06 CN CN201721683003.5U patent/CN207534449U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951709A (en) * | 2022-05-26 | 2022-08-30 | 中信重工机械股份有限公司 | Finish machining method for heavy multi-eccentric crankshaft journal by using vertical lathe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180626 Termination date: 20201206 |