CN206876107U - A kind of connecting rod holes checking fixture for parallelism - Google Patents
A kind of connecting rod holes checking fixture for parallelism Download PDFInfo
- Publication number
- CN206876107U CN206876107U CN201720706776.4U CN201720706776U CN206876107U CN 206876107 U CN206876107 U CN 206876107U CN 201720706776 U CN201720706776 U CN 201720706776U CN 206876107 U CN206876107 U CN 206876107U
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- China
- Prior art keywords
- connecting rod
- block
- amesdial
- positioning datum
- axle
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Abstract
The utility model discloses a kind of connecting rod holes checking fixture for parallelism, it includes reference water plain block and the reference vehicular block being vertically fixed on reference water plain block, reference vehicular block is provided with positioning datum axle, positioning datum axle is fixedly arranged above the first amesdial, and the lower section both sides of the first amesdial, which are respectively equipped with, spacing leans on axle；The side of the positioning datum axle is provided with parallel limit shaft, and the reference water plain block is provided with line slide rail, sliding block is slidably connected on line slide rail, the second amesdial is fixed with sliding block.Using above structure, conveniently and efficiently the depth of parallelism of connecting rod both direction can be detected in production scene, without entering three coordinates（CMM）Room measures, and substantially increases production efficiency.
Description
Technical field
It the utility model is related to connecting rod fields of measurement, more particularly to a kind of connecting rod holes checking fixture for parallelism.
Background technology
Produce connecting rod in batches, the control size of most critical, size, holes centre-to-centre spacing, holes no more than aperture it is parallel
Spend.Though the hole tolerance of two big aperture is all smaller, can be measured by air-gauge, live operator can
To accomplish that full inspection is checked on, circularity is also easily controlled.And for they pitch of holes and both direction Parallel testing, be not
One easy thing.Want to detect this key characteristic size, be all intended for three coordinates in the past（CMM）Room measures.By
First connecting rod to be had good positioning in CMM measurements, three coordinate programs of going further, finally go out examining report again.Whole measure compares consumption
When, do not accomplish to produce the demand detected totally in enormous quantities yet.Therefore the special of a set of measurement for the connecting rod holes depth of parallelism is designed
With cubing, operation detection can be carried out in production scene, just seem particularly necessary.
The content of the invention
In order to solve deficiency of the prior art, the purpose of this utility model is to provide a kind of convenient connecting rod two of measurement
Hole checking fixture for parallelism.
To achieve the above object, the utility model uses following technical scheme：
A kind of connecting rod holes checking fixture for parallelism, including reference water plain block hang down with the benchmark being vertically fixed on reference water plain block
Straight block, the reference vehicular block are provided with positioning datum axle, and positioning datum axle is fixedly arranged above the first amesdial, the 1000th point
The lower section both sides of table be respectively equipped with it is spacing lean on axle, the wrist-pin hole is set in positioning datum axle and the bottom of crank bore
Portion be placed in two it is spacing lean on axle between when, the chaining pin of first amesdial is butted on the hole wall of crank bore；The positioning
The side of reference axis is provided with parallel limit shaft, and the reference water plain block is provided with line slide rail, slidably connected on line slide rail
Sliding block, the second amesdial is fixed with sliding block, the wrist-pin hole is set in positioning datum axle and crank bore supports
When on parallel limit shaft, connecting rod is horizontal, and the chaining pin of second amesdial is butted on the hole wall of crank bore.
The end of being inserted in of the positioning datum axle is provided with the axis of cone.
First amesdial and the second amesdial are dial test indicator.
The utility model uses above structure, has the advantages that：, can be in life using cubing of the present utility model
Production scene is conveniently and efficiently detected to the depth of parallelism of connecting rod both direction, without entering three coordinates（CMM）Room measures,
Substantially increase production efficiency.
Brief description of the drawings
The utility model is described in further details below in conjunction with the drawings and specific embodiments；
Fig. 1 is front view of the present utility model；
Fig. 2 is side view of the present utility model.
Embodiment
As shown in Figure 1 or 2, the utility model includes reference water plain block 1 and the base being vertically fixed on reference water plain block 1
Quasi- vertical blocks 2, the reference vehicular block 2 are provided with positioning datum axle 3, and positioning datum axle 3 is fixedly arranged above the first amesdial
4, the lower section both sides of the first amesdial 4 be respectively equipped with it is spacing lean on axle 5, the small end borehole jack of connecting rod 10 is located in positioning datum axle 3
And the bottom of 10 big stomidium of connecting rod be placed in two it is spacing when leaning between axle 5, it is big that the chaining pin of first amesdial 4 is butted on connecting rod 10
On the hole wall of stomidium；The side of the positioning datum axle 3 is provided with parallel limit shaft 6, and the reference water plain block 1 is slided provided with straight line
Rail 7, sliding block 8 is slidably connected on line slide rail 7, the second amesdial 9 is fixed with sliding block 8, the small end borehole jack of connecting rod 10 is set
In the positioning datum axle 3 and when 10 big stomidium of connecting rod is supported on parallel limit shaft 6, connecting rod 10 is horizontal, and described the
The chaining pin of two amesdials 9 is butted on the hole wall of 10 big stomidium of connecting rod.
The end of being inserted in of the positioning datum axle 3 is provided with the axis of cone 31.
The amesdial 9 of first amesdial 4 and second is dial test indicator.
It is of the present utility model as follows using step：
1st, wrist-pin end of connecting rod aperture and big stomidium footpath are first measured respectively with air-gauge, it is ensured that dimensional tolerance and circularity meet
Drawing requirement.
2nd, a circularity and the preferable connecting rod of cylindricity are selected, by three coordinates（CMM）The centre-to-centre spacing of holes is measured, indicates reality
Measured value, used as calibration when subsequently measuring.
3rd, by the above-mentioned big stomidium of connecting rod meter calibrating block got ready upward, small stomidium is slowly inserted in positioning datum axle along the axis of cone 31
3.At the middle part of the big stomidium of connecting rod meter calibrating block, the chaining pin angle of the first amesdial 4 is adjusted, point power is somewhat used toward gravity direction,
It is sufficiently engaged with the bus of the bus and the big stomidium of connecting rod meter calibrating block of positioning datum axle 3, swing connecting rod meter calibrating block, finds survey
The maximum point of amount, the zero of centre-to-centre spacing is measured to table to the first amesdial 4 fixed above.Calibration finishes, and removes calibration
Connecting rod meter calibrating block.
4th, connecting rod 10 to be measured is inserted in positioning datum axle 3 by the same method of step 3.In 10 big stomidium of connecting rod
Portion carries out the relative measurement of centre distance, and the X values measured should be within a predetermined range.It is further continued for shifting bottom to the end face of connecting rod 10 onto and leans on
On, measure the indicating value X1 of most proximal end.Connecting rod 10 is pulled outward again, measures the indicating value X2 of distalmost end, calculates X1-X2 extreme difference σ.Suddenly
Slightly influence of the aperture circularity to the depth of parallelism, this extreme difference is exactly the depth of parallelism of the vertical direction.
5th, the connecting rod 10 that pulls outward is continued, spacing around both the above measurement protection leans on axle 5, rotate counterclockwise connecting rod 10.
When big stomidium can entangle the second 9 chaining pin of amesdial on parallel limit shaft 6 and sliding block 8, connecting rod 10 is pushed away inside until making connecting rod
10 end faces are top.Unclamp both hands, the keep level measuring state of connecting rod 10.With that can left and right promote line slide rail 7 on cunning
Block 8, finds maximum point, is zeroed to table.Then pull outward connecting rod 10, to the measurement position specified, measures again, now
The indicating value read on dial plate, it is exactly the depth of parallelism of the horizontal direction.
Claims (3)
1. a kind of connecting rod holes checking fixture for parallelism, including reference water plain block and the reference vehicular that is vertically fixed on reference water plain block
Block, it is characterised in that：The reference vehicular block is provided with positioning datum axle, and positioning datum axle is fixedly arranged above the 1000th point
Table, the lower section both sides of the first amesdial be respectively equipped with it is spacing lean on axle, wrist-pin hole is set in positioning datum axle and connecting rod is big
The bottom of stomidium be placed in two it is spacing lean on axle between when, the chaining pin of first amesdial is butted on the hole wall of crank bore；
The side of the positioning datum axle is provided with parallel limit shaft, and the reference water plain block is provided with line slide rail, slided on line slide rail
It is dynamic to be connected with sliding block, the second amesdial is fixed with sliding block, the wrist-pin hole is set in positioning datum axle and connecting rod is big
When stomidium is supported on parallel limit shaft, connecting rod is horizontal, and the chaining pin of second amesdial is butted on crank bore
Hole wall on.
A kind of 2. connecting rod holes checking fixture for parallelism according to claim 1, it is characterised in that：The set of the positioning datum axle
Enter end and be provided with the axis of cone.
A kind of 3. connecting rod holes checking fixture for parallelism according to claim 1, it is characterised in that：First amesdial and
Two amesdials are dial test indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720706776.4U CN206876107U (en) | 2017-06-16 | 2017-06-16 | A kind of connecting rod holes checking fixture for parallelism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720706776.4U CN206876107U (en) | 2017-06-16 | 2017-06-16 | A kind of connecting rod holes checking fixture for parallelism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206876107U true CN206876107U (en) | 2018-01-12 |
Family
ID=61333370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720706776.4U Active CN206876107U (en) | 2017-06-16 | 2017-06-16 | A kind of connecting rod holes checking fixture for parallelism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206876107U (en) |
-
2017
- 2017-06-16 CN CN201720706776.4U patent/CN206876107U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 350000 No.3 comprehensive office building, No.8, Shangmao Avenue, Nantong town, Minhou County, Fuzhou City, Fujian Province Patentee after: Fujian Huawei Juquan Precision Technology Co., Ltd Address before: 350000 Fujian Province, Jinan District of Fuzhou City Drum Shan Fuxing Investment Zone Patentee before: FUZHOU JULI MOTOR PARTS Co.,Ltd. |