CN207464706U - Part positioning device - Google Patents
Part positioning device Download PDFInfo
- Publication number
- CN207464706U CN207464706U CN201721352075.1U CN201721352075U CN207464706U CN 207464706 U CN207464706 U CN 207464706U CN 201721352075 U CN201721352075 U CN 201721352075U CN 207464706 U CN207464706 U CN 207464706U
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- China
- Prior art keywords
- positioning device
- guide rod
- positioning
- fixture
- pushing meanss
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Abstract
The utility model provides a kind of part positioning device, the device include to part is pre-positioned fixture, to adjust the position of the part part pushing meanss to carry out fine positioning, the driving mechanism to push part pushing meanss movement, the fixed bit for placing the part is provided on the fixture, the pushing meanss are oppositely arranged with the part.The utility model proposes part positioning device part is pre-positioned by fixture first, fine positioning is carried out to part by part pushing meanss again, relative to the prior art, improves positioning accuracy, the service life of part positioning device reduces part processing error problem.
Description
Technical field
The utility model belongs to machinery field more particularly to a kind of part positioning device.
Background technology
The positioning method of current engine housing class part work in-process in the heart, most of by V-block, positioning surface,
Positioning pin is positioned.It along with corresponding clamp system, is processed after part is clamped, processing quality is protected except machine tool accuracy
Card is outer, relies primarily on the positioning accuracy of part clamp.After long-term production, it is also easy to produce following point：
1st, positioned using plane and two pits, after batch production the repetition of part take a seat, pin can be caused to grind with positioning pin friction
Damage, positioning accuracy are deteriorated；It can lead to processing error during serious wear, need frequently to replace spare part, cost is caused to increase；
2nd, since the pin hole of positioning pin and part is clearance fit, position can be offset after part is taken a seat, and be such as designed as
It is full of cooperation, workpiece can be caused to be difficult to take a seat, the deformation of workpiece pin hole, crossing positioning causes processing abnormal；
3rd, it is positioned based on pin hole, the size fluctuation of processing is big, and process is difficult to control, easily causes part rejection.
In view of above-mentioned technical problem, it is necessary to propose it is a kind of can reduce cost, prolong the service life, improve positioning accuracy,
Reduce the solution of the overproof problem of part.
Utility model content
The utility model proposes a kind of cleaning machine workpiece structure for conveying, it is intended to simplify structure, it is easy to repair, and cost is reduced,
Improve setting accuracy.
The utility model is realized in this way a kind of part positioning device, including the folder to be pre-positioned to part
Tool, to adjust the position of the part with carry out fine positioning part pushing meanss, pushing the part pushing meanss
The driving mechanism of movement is provided with the fixed bit for placing the part, the pushing meanss and described zero on the fixture
Part is oppositely arranged.
The further technical solution of the utility model is that dowel hole is provided on the part, on the fixed bit
Be provided with the matched positioning pin of the dowel hole, when the part is pulled to the busy hour fixed, on the part
Dowel hole is fallen on the positioning pin, and the part is pre-positioned.
The further technical solution of the utility model is, when carrying out fine positioning to the part, the pushing meanss
Front end side that the part is pushed to cause the dowel hole of the part completely attached to the positioning pin.
The further technical solution of the utility model is that the part pushing meanss include mounting base, guide rod, are set to
The pushing block of the front end of the guide rod, wherein, the mounting base is connect with the fixture, and the rear end of the guide rod is set to the peace
It fills in seat, it is described to push away when the guide rod is towards the part movement outside the protruding mounting base in front end of the guide rod
Block pushes the part, and fine positioning is carried out to adjust the position of the part.
The further technical solution of the utility model is that the front end of the pushing block and the guide rod is detachably connected.
The further technical solution of the utility model is to be additionally provided in the mounting base and answered with what the pushing block was connect
Position spring.
The further technical solution of the utility model is to further include to detect the pushing block position and the guide rod position
The gas check put.
The further technical solution of the utility model is, the driving mechanism is hydraulic mechanism, the hydraulic mechanism packet
Piston and the fluid cylinder to drive the piston motion are included, the piston is connect with the guide rod.
The further technical solution of the utility model is that the folder for clamping the part is additionally provided on the fixture
Tight head.
The beneficial effects of the utility model are：The utility model proposes part positioning device first by fixture to part
It is pre-positioned, then fine positioning is carried out to part by part pushing meanss, relative to the prior art, improve positioning accuracy,
The service life of part positioning device reduces part processing error problem.
Description of the drawings
Fig. 1 is the structure diagram for the part positioning device that the utility model preferred embodiment proposes；
Fig. 2 is that the overall structure of part pushing meanss in the part positioning device that the utility model preferred embodiment proposes is shown
It is intended to；
Fig. 3 is that the internal structure of part pushing meanss in the part positioning device that the utility model preferred embodiment proposes is shown
It is intended to.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention is further described in detail.
Specific embodiment
It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit this
Utility model.
The solution of the utility model embodiment is mainly：The utility model proposes part positioning device pass through first
Fixture is pre-positioned part, then carries out fine positioning to part by part pushing meanss, relative to the prior art, improves
Positioning accuracy, the service life of part positioning device reduce part processing error problem.
The positioning method of current engine housing class part work in-process in the heart, most of by V-block, positioning surface,
Positioning pin is positioned.It along with corresponding clamp system, is processed after part is clamped, processing quality is protected except machine tool accuracy
Card is outer, relies primarily on the positioning accuracy of part clamp.After long-term production, it is also easy to produce following point：
1st, positioned using plane and two pits, after batch production the repetition of part take a seat, pin can be caused to grind with positioning pin friction
Damage, positioning accuracy are deteriorated；It can lead to processing error during serious wear, need frequently to replace spare part, cost is caused to increase；
2nd, since the pin hole of positioning pin and part is clearance fit, position can be offset after part is taken a seat, and be such as designed as
It is full of cooperation, workpiece can be caused to be difficult to take a seat, the deformation of workpiece pin hole, crossing positioning causes processing abnormal；
3rd, it is positioned based on pin hole, the size fluctuation of processing is big, and process is difficult to control, easily causes part rejection.
The utility model proposes one kind is at low cost, service life is long, positioning accuracy is high, avoids the overproof problem of part as a result,
Part positioning device.
The utility model is specifically addressed with reference to embodiment.
Specifically, referring to figs. 1 to Fig. 3, Fig. 1 is the structure for the part positioning device that the utility model preferred embodiment proposes
Schematic diagram；Fig. 2 is the overall structure of part pushing meanss 20 in the part positioning device that the utility model preferred embodiment proposes
Schematic diagram；Fig. 3 is the internal structure of part pushing meanss 20 in the part positioning device that the utility model preferred embodiment proposes
Schematic diagram.
As shown in Figure 1 to Figure 3, the utility model preferred embodiment propose part positioning device include to part into
The fixture 10 of row pre-determined bit, to adjust the position of the part with carry out fine positioning part pushing meanss 20, pushing
The driving mechanism that the part pushing meanss 20 move is provided with the fixed bit for placing the part on the fixture 10,
The pushing meanss are oppositely arranged with the part.
Further, dowel hole is provided on the part, is provided on the fixed bit and the dowel hole phase
The positioning pin 101 of cooperation, when the part is pulled to the busy hour fixed, the dowel hole on the part is fallen in the positioning
On pin 101, the part is pre-positioned.
Further, when carrying out fine positioning to the part, the front end of the pushing meanss pushes the part to cause
The side of the dowel hole of the part is completely attached to the positioning pin 101.
Further, the part pushing meanss 20 include mounting base 201, guide rod 202, are set to the guide rod 202
The pushing block 203 of front end, wherein, the mounting base 201 is connect with the fixture 10, and the rear end of the guide rod 202 is set to described
In mounting base 201, outside the protruding mounting base 201 in front end of the guide rod 202, when the guide rod 202 is towards described zero
When part moves, the pushing block 203 pushes the part, and fine positioning is carried out to adjust the position of the part.
The mounting base 201 is connect with the fixture 10 when it is implemented, four bolts may be used, it is described as a result,
Part pushing meanss 20 and the relative position of the positioning pin 101 are fixed, and are replaced when can reduce adjustment after the positioning pin 101
Between.
As a kind of embodiment, the direction of motion to control the guide rod 202 can be set on the pedestal
Guide sleeve 204.
Further, the front end of the pushing block 203 and the guide rod 202 is detachably connected.
When it is implemented, the front end of the pushing block 203 and the guide rod 202 can be connected through a screw thread, this is expanded as a result,
The scope of application for the part positioning device that embodiment proposes is not required to remodel when production line switches product, such as increases new product only
The pushing block 203 is needed to change, so as to reduce use cost.
Further, it is additionally provided with the resetting spring 205 being connect with the pushing block 203 in the mounting base 201.
It can be avoided causing to damage, be conducive to avoid excessive impact force is generated to the part by resetting spring 205
Improve the quality of production.
Further, further include to detect the gas check of 202 position of 203 position of pushing block and the guide rod.
Further, the driving mechanism is hydraulic mechanism, and the hydraulic mechanism includes piston and to drive the work
The fluid cylinder of movement is filled in, the piston is connect with the guide rod 202.
Due to hydraulic mechanism stable structure, part is every time by identical thrust so that positions relative to the prior art
It is more accurate.
When it is implemented, oil hydraulic cylinder may be used in the hydraulic mechanism, oil circuit is set on the fixture 10, in the peace
The oilhole 206 that setting is connected to each other with the oil circuit on dress seat 201.
Further, the clamping head 102 for clamping the part is additionally provided on the fixture 10.
The operation principle for the part positioning device that the present embodiment proposes is as follows：
When the part to be shifted onto to the busy hour fixed on the fixture 10, lifting cylinder puts down the part, makes described
Dowel hole on part is fallen on the positioning pin 101 of the fixture 10, after being connected to the signal of lifting cylinder decline, opens oil
Road, oil hydraulic cylinder driving piston push guide rod 202 to move so that the pushing block 203 for being set to 202 front end of guide rod stretches out, described in contact
The outer surface of part, the pushing block 203 push the part that the side of its dowel hole and the positioning pin 101 is made to connect completely
It touches, reduces the unilateral gap of the positioning pin 101 and the dowel hole, be then clamped again by the clamping head 102,
Improve positioning accuracy；The pushing block 203 is detected by the gas check and stretches out signal in place, subsequent pressure release, by described multiple
The pushing block 203 is retracted original position by the screen resilience of position spring 205, and detecting the guide rod 202 by the gas check returns to original
Position, avoids causing to scratch in process and the feature contacts.After the part is clamped and machines, this part pushes away
Dynamic device 20 can repeat this cycle after next part dropping place.
In conclusion the utility model proposes the advantageous effect of part positioning device be：
1st, the part positioning device that the present embodiment proposes only need to increase oil circuit, flow valve, part pushing meanss in former fixture
Avoid the clamping point and detent mechanism of former fixture, no interference；
2nd, it can effectively reduce after part takes a seat, processing quality is improved in the gap of the positioning pin and the dowel hole；
3rd, it by the resetting spring, avoids generating excessive impact force to the part, causes to damage；
4th, the guide rod is detachably connected with the pushing block, and suitable for different types of machines, production line need not change when switching product
Type, the pushing block can only be needed to change by such as increasing new product；
5th, the part positioning device vulnerable part is the resetting spring, i.e. replaceable by dismantling the guide sleeve and guide rod；
6th, the mounting base is divided into two parts, by the guide rod of assembling-disassembling bolt, that is, replaceable inside and resetting spring etc. zero
Part.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (9)
1. a kind of part positioning device, which is characterized in that including the fixture, described to adjust to be pre-positioned to part
Part pushing meanss of the position of part to carry out fine positioning, the driving mechanism to push the part pushing meanss movement,
The fixed bit for placing the part is provided on the fixture, the pushing meanss are oppositely arranged with the part.
2. part positioning device according to claim 1, which is characterized in that dowel hole, institute are provided on the part
State be provided on fixed bit with the matched positioning pin of the dowel hole, when the part is pulled to the busy hour fixed, institute
It states the dowel hole on part to fall on the positioning pin, the part is pre-positioned.
3. part positioning device according to claim 2, which is characterized in that when carrying out fine positioning to the part, institute
The side for the dowel hole that the front end for stating pushing meanss pushes the part to cause the part is completely attached to the positioning pin.
4. part positioning device according to claim 1, which is characterized in that the part pushing meanss include mounting base,
Guide rod, be set to the guide rod front end pushing block, wherein, the mounting base is connect with the fixture, the rear end of the guide rod
It is set in the mounting base, outside the protruding mounting base in front end of the guide rod, when the guide rod is towards the part
During movement, the pushing block pushes the part, and fine positioning is carried out to adjust the position of the part.
5. part positioning device according to claim 4, which is characterized in that the front end of the pushing block and the guide rod is removable
Unload connection.
6. part positioning device according to claim 4, which is characterized in that be additionally provided in the mounting base and pushed away with described
The resetting spring of block connection.
7. part positioning device according to claim 4, which is characterized in that further include to detect the pushing block position and
The gas check of the guide rod position.
8. part positioning device according to claim 4, which is characterized in that the driving mechanism is hydraulic mechanism, described
Hydraulic mechanism includes piston and the fluid cylinder to drive the piston motion, and the piston is connect with the guide rod.
9. part positioning device according to any one of claims 1 to 8, which is characterized in that be additionally provided on the fixture
For clamping the clamping head of the part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721352075.1U CN207464706U (en) | 2017-10-19 | 2017-10-19 | Part positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721352075.1U CN207464706U (en) | 2017-10-19 | 2017-10-19 | Part positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207464706U true CN207464706U (en) | 2018-06-08 |
Family
ID=62264240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721352075.1U Active CN207464706U (en) | 2017-10-19 | 2017-10-19 | Part positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207464706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107511691A (en) * | 2017-10-19 | 2017-12-26 | 上汽通用五菱汽车股份有限公司 | Part positioning device |
-
2017
- 2017-10-19 CN CN201721352075.1U patent/CN207464706U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107511691A (en) * | 2017-10-19 | 2017-12-26 | 上汽通用五菱汽车股份有限公司 | Part positioning device |
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