CN206855291U - Multifunction hydraulic fixture - Google Patents
Multifunction hydraulic fixture Download PDFInfo
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- CN206855291U CN206855291U CN201720311346.2U CN201720311346U CN206855291U CN 206855291 U CN206855291 U CN 206855291U CN 201720311346 U CN201720311346 U CN 201720311346U CN 206855291 U CN206855291 U CN 206855291U
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Abstract
A kind of multifunction hydraulic fixture, it is related to the fixture used during a kind of part processing, including hydraulic cylinder, clamp system, hydraulic circuit system, described hydraulic cylinder include hydraulic cylinder body, piston rod, the end of described piston rod is provided with double-faced toothed driving rack；Described multifunction hydraulic fixture also includes gear drive, the gear drive includes the driving gear set at left and right sides of piston rod respectively, each driving gear set includes drive pinion and transmission gear wheel, by being driven axis connection between drive pinion and transmission gear wheel, two drive pinions engage with the double-faced toothed driving rack on piston rod respectively, and two transmission gear wheels engage with clamp system respectively.The utility model has the characteristics that clamping force is big, can effectively avoid interfering good phenomenon, universal performance, low cost, maintenance cost is low, production efficiency is high, stability is strong, control accuracy is high, use easy to spread.
Description
Technical field
The fixture used during a kind of part processing is the utility model is related to, more particularly to a kind of multifunction hydraulic fixture.
Background technology
Part be unable to do without fixture during processing, fixture is to realize high-yield and high-efficiency, workpiece positioning, support, clamping and pine
A kind of approach opened, so the production of fixture is with easy to operate, positioning precision is high, clamps and release speed is fast, repeatability
It is good, premised on reliable clamping etc..Ratio in the market shared by manual is still higher, and its reason is that hydraulic clip is signed an undertaking
Structure is all more complicated, and versatility is not high, and cost is again expensive, and maintenance cost is high, so cannot be extensive in Modern Manufacturing Industry
Application.
Authorization Notice No. discloses one kind for CN204935368U utility model patent and " is used for mould collar processed clip
Tool ", the fixture is that hydraulic cylinder drives screw rod to rotate by rack, gear, final to realize folder so as to drive taper head to move up and down
The opening of pawl and clamping, but the fixture has the following disadvantages：1. because the opening of clamping jaw and clamping are on the taper head passed through
Lower movement realizes that it is that radial type clamps, and is that point contacts between clamping jaw and workpiece, support force or clamping force are small, and polarization is poor.
2. because hydraulic cylinder is that gear drives screw rod to rotate again, so as to drive above and below taper head by one pinion rotation of rack drives
Movement, therefore, for certain displacement occurs for taper head, is required for rack drives tooth every time to realize the opening of clamping jaw and clamping
Multi-turn rotation is taken turns, thus the piston rod of hydraulic cylinder will stretch out a very long segment distance, cause piston rod to be easily deformed, poor rigidity, folder
Clamp force diminishes, low precision.In addition, it is also easy to interfere with other parts.3. function is single, the fixture can only be limited to internally
The clamping in hole.4. due to the inherent characteristic of taper, taper can not possibly be made too big, and the angle for causing it to open is smaller, therefore institute
The aperture that can be clamped is very limited.
The content of the invention
The technical problems to be solved in the utility model is：A kind of multifunction hydraulic fixture is provided, to solve existing hydraulic clip
Clamping force existing for tool is small, polarization is poor, low precision, easily interfere, function is single, clamping aperture is limited, cost is held high
Weak point expensive, maintenance cost is high.
Solve above-mentioned technical problem technical scheme be：A kind of multifunction hydraulic fixture, including hydraulic cylinder, clamp system,
Hydraulic circuit system, described hydraulic cylinder include hydraulic cylinder body, piston rod, and the end of described piston rod is provided with double-faced toothed
Driving rack, described clamp system include two opposite gripping blocks, and one end end of gripping block is provided with driving cog；Described
Multifunction hydraulic fixture also includes gear drive, and the gear drive includes the biography at left and right sides of piston rod respectively
Moving gear group, each driving gear set includes drive pinion and transmission gear wheel, between drive pinion and transmission gear wheel
By being driven axis connection, two drive pinions engage with the double-faced toothed driving rack on piston rod respectively, and two transmissions are big
Driving cog of the gear respectively with two gripping blocks is meshed.
It is of the present utility model further technical scheme be：Described gripping block includes chuck contiguous block and chuck, and chuck connects
The one end for connecing block is provided with described driving cog, and the other end of chuck contiguous block is provided with neck, chuck contiguous block by the neck with
And fastener is flexibly connected with chuck.
It is of the present utility model further technical scheme be：The opening shape of two chucks combines to form rectangle or cylinder
Or rhombus.
It is of the present utility model further technical scheme be：The outside of two chucks is also respectively provided with endoporus fixation branch and held round
Post.
It is of the present utility model further technical scheme be：Described multifunction hydraulic fixture also includes casing, described liquid
Cylinder pressure, gear drive, clamp system are installed on the casing.
Further technical scheme of the present utility model is：Described casing is step casing, and the casing is provided with first
Step, second step, the 3rd step, described hydraulic cylinder body are fixed on first step, and gear drive is fixed on
On two steps, the 3rd step is provided with guide-localization groove, and one end that clamp system is meshed with transmission gear wheel is located at the guiding
In locating slot, and the lower surface of clamp system directly contacts with the bottom land of guide-localization groove.
Further technical scheme of the present utility model is：Case lid is connected with the top of the casing, and is filled on case lid
There is a pressure display unit being connected with hydraulic cylinder.
Further technical scheme of the present utility model is：Described hydraulic cylinder is double acting hydraulic cylinder.
Further technical scheme of the present utility model is：Described hydraulic circuit system include oil pump, solenoid directional control valve,
Hydraulic control one-way valve, electro connecting pressure gauge, the output end of described oil pump and the input of solenoid directional control valve connect, solenoid directional control valve
Output end be connected respectively with the fuel feed hole on hydraulic cylinder body and oil outlet；In the output end and hydraulic cylinder of solenoid directional control valve
Described hydraulic control one-way valve, electro connecting pressure gauge are also respectively connected with oil circuit between the fuel feed hole of body；In the output of oil pump
Overflow valve is also associated between end and the input of solenoid directional control valve.
It is of the present utility model further technical scheme be：The overflow valve is provided with the adjustable overfall of size.
Due to compared with prior art, being had using said structure, the multifunction hydraulic fixture of the utility model with following
Beneficial effect：
1. clamping force is big, polarization is good：
Because the utility model includes hydraulic cylinder, clamp system, hydraulic circuit system, gear drive, wherein clamping
Mechanism includes two opposite gripping blocks, and one end end of gripping block is provided with driving cog；Described hydraulic cylinder includes hydraulic cylinder
Body, piston rod, the end of piston rod are provided with double-faced toothed driving rack；Double-faced toothed driving rack on piston rod passes through gear
Transmission mechanism engages with gripping block.Therefore, the utility model is to drive piston rod to stretch by hydraulic cylinder, and piston rod passes through tooth again
Wheel drive mechanism drives clamp system to realize the opening moved in parallel and clamping, is that face connects between clamp system and clamped workpiece
Touch, therefore, its clamping force is larger, and polarization is preferable.
2. clamping accuracy can be improved and effectively avoid interfering phenomenon：
Because the utility model includes hydraulic cylinder, clamp system, hydraulic circuit system, wherein gear drive, hydraulic pressure
Cylinder includes hydraulic cylinder body, piston rod, and the end of piston rod is provided with double-faced toothed driving rack；Gear drive includes difference
Driving gear set at left and right sides of piston rod, each driving gear set include drive pinion and transmission gear wheel, transmission
By being driven axis connection between little gear and transmission gear wheel, two drive pinions respectively with the double-faced toothed biography on piston rod
Carry-over bar engages, and driving cog of two transmission gear wheels respectively with two gripping blocks is meshed.Due to it is two-sided on piston rod
The engagement of tooth form driving rack is two drive pinions, then is engaged by drive pinion with transmission gear wheel, can be amplified
The distance of clamp system movement.Thus the utility model can make piston rod only stretch out a small distance can small by being driven
Gear engages with transmission gear wheel, moves a certain distance clamp system so as to realize the opening of clamp system and clamping,
It is exactly that piston rod overhang of the present utility model greatly shortens, and not only ensure that piston rod in the case of identical clamping stroke
Intensity and clamping force, improve clamping accuracy, but also can effectively avoid interfering phenomenon.
3. functional diversities：
Because the utility model is to drive piston rod to stretch by hydraulic cylinder, piston rod is driven by gear drive again
Clamp system realizes the opening moved in parallel and clamping, not only can be to the clamping of outer surface of workpiece, can also be to inner hole of workpiece
Support, its functional diversities.
4. the limitation of clamping is small：
Because the utility model is to drive piston rod to stretch by hydraulic cylinder, piston rod is driven by gear drive again
Clamp system realizes the opening moved in parallel and clamping, and therefore, the utility model avoids the taper problem of taper head, and it is clamped
Aperture or external diameter limitation it is small.
5. universal performance is good：
Because the clamp system described in this practicality includes two opposite gripping blocks, wherein gripping block includes chuck contiguous block
And chuck, one end of chuck contiguous block are provided with the driving cog being meshed with transmission gear wheel, the other end of chuck contiguous block is provided with
Neck, chuck contiguous block are flexibly connected by the neck and fastener with chuck.And the opening shape combination of two chucks
Form rectangle or cylinder or rhombus.The fixture is furnished with different chucks, is suitable for workpiece of different shapes and uses, versatility
Can be good, adaptability is good, safe, and can be used in use, chuck is placed in and goes up clinch ear trip bolt after neck,
Installation process is simple and convenient.
6. low cost, maintenance cost are low：
Because the utility model includes hydraulic cylinder, clamp system, hydraulic circuit system, wherein gear drive, hydraulic pressure
Cylinder includes hydraulic cylinder body, piston rod, and the end of piston rod is provided with double-faced toothed driving rack；Gear drive includes difference
Driving gear set at left and right sides of piston rod, each driving gear set include drive pinion and transmission gear wheel, transmission
By being driven axis connection between little gear and transmission gear wheel, two drive pinions respectively with the double-faced toothed biography on piston rod
Carry-over bar engages, and two transmission gear wheels engage with clamp system respectively.Therefore, the utility model does not have other complicated controls
Mechanism, its is simple in construction, low cost, and maintenance cost is low.
7. production efficiency can be improved：
The utility model is controlled with hydraulic cylinder, is swift in motion, and reaction is fast, and the short time reaches required pressure and speed,
And it is easy to operate, shorten non-cutting time, improve production efficiency.
8. pressure maintaining performance is good, stability is strong, control accuracy is high：
Hydraulic circuit system of the present utility model has pressure regulation and pressure holding function, and after Workpiece clamping, automatic protect can be achieved
Function is pressed, pressure maintaining performance is good, and stability is strong, and position and velocity control accuracy are high.
9. manufacture easy to process：
The utility model is relatively easy processing and manufacturing due to simple in construction, safeguards simple, and service life length, reliability is high,
Suitable for standardization, systematization, generalization, economic benefit in production is improved.
Below, the technical characteristic of the multifunction hydraulic fixture of the utility model is made further in conjunction with the accompanying drawings and embodiments
Explanation.
Brief description of the drawings
Fig. 1：The structural representation of the multifunction hydraulic fixture of the utility model,
Fig. 2：Remove the structural representation of the multifunction hydraulic fixture of the utility model after casing,
Fig. 3：Connection relationship diagram between hydraulic cylinder, drive pinion, clamp system,
Fig. 4：Opening shape combines to form rectangular chuck schematic diagram,
Fig. 5：Opening shape combines the chuck schematic diagram to form cylinder,
Fig. 6：Opening shape combines the chuck schematic diagram to form rhombus,
Fig. 7：The chuck schematic diagram of support cylinder is fixed with endoporus,
Fig. 8：The hydraulic schematic diagram of hydraulic circuit system described in embodiment one.
In above-mentioned accompanying drawing, each description of reference numerals is as follows：
1- casings,
11- first steps, 12- second steps, the steps of 13- the 3rd, 131- guide-localization grooves, 14- case lids,
2- hydraulic cylinders,
21- hydraulic cylinder bodies, 22- piston rods, the double-faced toothed driving racks of 221-,
3- gear drives,
31- drive pinions, 32- transmission gear wheels, 33- power transmission shafts,
4- clamp systems,
41- chuck contiguous blocks, 411- driving cogs, 412- necks, 42- chucks, 421- endoporus fix support cylinder,
5- hydraulic circuit systems,
51- oil pumps, 52- solenoid directional control valves, 53- hydraulic control one-way valves, 54- electro connecting pressure gauges, 55- overflow valves,
6- pressure display units.
Embodiment
Embodiment one
A kind of multifunction hydraulic fixture, including casing 1, hydraulic cylinder 2, gear drive 3, clamp system 4, hydraulic circuit
System 5,
Described casing 1 is step casing, so as to enable this fixture bear processing when external force it is impacted and influence plus
Work precision, the casing 1 are provided with first step 11, second step 12, the 3rd step 13, and second step 12 is provided with two bearings
Hole, the 3rd step 13 are provided with guide-localization groove 131, and the guide-localization groove 131 is positioned and is oriented in groove for clamp system；Institute
The top for stating casing 1 is connected with case lid 14, and a pressure display unit 6 being connected with hydraulic cylinder 2 is housed on case lid 14, convenient
The change size of its clamping force of real time inspection.
Described hydraulic cylinder 2 is double acting hydraulic cylinder, and the hydraulic cylinder 2 includes hydraulic cylinder body 21, piston rod 22, described
Hydraulic cylinder body 21 is fixed on first step 11, and the end of described piston rod 22 is provided with double-faced toothed driving rack 221.
Described gear drive 3 is included respectively positioned at the driving gear set of the left and right sides of piston rod 22, each transmission
Gear train includes drive pinion 31 and transmission gear wheel 32, passes through power transmission shaft between drive pinion 31 and transmission gear wheel 32
33 connections, the bottom of power transmission shaft 33 are fixed in the bearing hole of second step 12 of casing 1 by bearing, the top of power transmission shaft 33
It is fixed on by bearing on case lid, two drive pinions 31 are nibbled with the double-faced toothed driving rack 221 on piston rod 22 respectively
Close, two transmission gear wheels 32 engage with clamp system 4 respectively.
Described clamp system 4 includes two opposite gripping blocks, and each gripping block includes chuck contiguous block 41 and chuck
42, one end of chuck contiguous block 41 is provided with the driving cog 411 being meshed with transmission gear wheel 32, the other end of chuck contiguous block 41
Provided with the neck 412 that fixture can be made to clamp variously-shaped workpiece, chuck contiguous block 41 passes through the neck 412 and fastener and folder
First 42 are flexibly connected.The opening shape of two chucks 42 combines to form rectangle（Referring to Fig. 4）Or cylinder（Referring to Fig. 5）Or water chestnut
Shape（Referring to Fig. 6）, the outside of two chucks 42 can also be respectively provided with endoporus and fix support cylinder 421（Referring to Fig. 7）.Described folder
Head contiguous block 41 is located in the guide-localization groove 131 of the step of casing the 3rd, and the lower surface of chuck contiguous block 41 and guide-localization
The bottom land of groove 131 directly contacts, and can bear the impact of external force without deforming.
Described hydraulic circuit system 5 includes oil pump 51, solenoid directional control valve 52, hydraulic control one-way valve 53, electro connecting pressure gauge
54（Referring to Fig. 8）, the output end of described oil pump 51 is connected with the input of solenoid directional control valve 52, the output of solenoid directional control valve 52
End is connected with the fuel feed hole on hydraulic cylinder body 21 and oil outlet respectively；In the output end and hydraulic cylinder body of solenoid directional control valve 52
Described hydraulic control one-way valve 53, electro connecting pressure gauge 54 are also respectively connected with oil circuit between 21 fuel feed hole；In oil pump 51
Output end and solenoid directional control valve 52 input between be also associated with overflow valve 55, the overflow valve 55 be provided with size it is adjustable
Overfall, so as in order that fixture can be directed to different workpiece and provide different clamping forces, so as to realize system clamping force
Regulation.Described electro connecting pressure gauge 54, it does not play the role of the effect of display, also output control signal singly, when pressure height
It exports shutdown signal when set pressure value, powers off solenoid directional control valve；When pressure is less than set pressure value
Its export open signal, make solenoid directional control valve again it is electric, raising pressure.
The operation principle of this hydraulic circuit system is as follows：
When solenoid directional control valve switches to left position, the piston rod of hydraulic cylinder is quickly retracted, and clamp system quickly unclamps, and works as electricity
When magnetic reversal valve switches to right position, the piston rod of hydraulic cylinder quickly stretches out, clamp system Quick-clamped, when clamping force rises to institute
During the pressure needed, electro connecting pressure gauge action, control solenoid directional control valve powers off and switches to middle position, and hydraulic cylinder is by fluid-control one-way
Valve realizes pressurize；If the right chamber of hydraulic cylinder makes clamping force drop to the lower limit of electro connecting pressure gauge because of reasons such as leakages during pressurize
During pressure, electro connecting pressure gauge sends signal again, solenoid directional control valve is switched to right position fuel feeding, lifts clamping force, therefore, this its
Hydraulic circuit has the function of pressure regulation and pressurize.
Claims (10)
1. a kind of multifunction hydraulic fixture, including hydraulic cylinder（2）, clamp system（4）, hydraulic circuit system（5）, described hydraulic pressure
Cylinder（2）Including hydraulic cylinder body（21）, piston rod（22）, it is characterised in that：Described piston rod（22）End be provided with it is two-sided
Tooth form driving rack（221）, described clamp system（4）Including two opposite gripping blocks, one end end of gripping block is provided with
Driving cog；Described multifunction hydraulic fixture also includes gear drive（3）, the gear drive（3）Including position respectively
In piston rod（22）The driving gear set of the left and right sides, each driving gear set include drive pinion（31）With transmission gear wheel
（32）, drive pinion（31）With being driven gear wheel（32）Between pass through power transmission shaft（33）Connection, two drive pinions（31）
Respectively with piston rod（22）On double-faced toothed driving rack（221）Engagement, two transmission gear wheels（32）Pressed from both sides respectively with two
The driving cog of tight block is meshed.
2. multifunction hydraulic fixture according to claim 1, it is characterised in that：Described gripping block includes chuck contiguous block
（41）And chuck（42）, chuck contiguous block（41）One end be provided with described driving cog（411）, chuck contiguous block（41）It is another
End is provided with neck（412）, chuck contiguous block（41）Pass through the neck（412）And fastener and chuck（42）It is flexibly connected.
3. multifunction hydraulic fixture according to claim 1, it is characterised in that：Two chucks（42）Opening shape combination
Form rectangle or cylinder or rhombus.
4. multifunction hydraulic fixture according to claim 1, it is characterised in that：Two chucks（42）Outside also band respectively
There is endoporus to fix support cylinder（421）.
5. multifunction hydraulic fixture according to claim 1, it is characterised in that：Described multifunction hydraulic fixture also includes
Casing（1）, described hydraulic cylinder（2）, gear drive（3）, clamp system（4）It is installed in the casing（1）On.
6. multifunction hydraulic fixture according to claim 5, it is characterised in that：Described casing is step casing, should
Casing（1）Provided with first step（11）, second step（12）, the 3rd step（13）, described hydraulic cylinder body（21）It is fixed on
First step（11）On, gear drive（3）It is fixed on second step（12）On, the 3rd step（13）It is provided with guide-localization
Groove（131）, clamp system（4）The one end being meshed with transmission gear wheel is located at the guide-localization groove（131）It is interior, and clamp system
（4）Lower surface and guide-localization groove（131）Bottom land directly contact.
7. multifunction hydraulic fixture according to claim 6, it is characterised in that：The casing（1）Top be connected with case
Lid（14）, and in case lid（14）It is upper that one and hydraulic cylinder are housed（2）The pressure display unit of connection（6）.
8. multifunction hydraulic fixture according to claim 1, it is characterised in that：Described hydraulic cylinder（2）For double acting liquid
Cylinder pressure.
9. multifunction hydraulic fixture according to claim 8, it is characterised in that：Described hydraulic circuit system（5）Including
Oil pump（51）, solenoid directional control valve（52）, hydraulic control one-way valve（53）, electro connecting pressure gauge（54）, described oil pump（51）Output
End and solenoid directional control valve（52）Input connection, solenoid directional control valve（52）Output end respectively with hydraulic cylinder body（21）On
Fuel feed hole connects with oil outlet；In solenoid directional control valve（52）Output end and hydraulic cylinder body（21）Fuel feed hole between oil circuit
On be also respectively connected with described hydraulic control one-way valve（53）, electro connecting pressure gauge（54）；In oil pump（51）Output end and electromagnetism
Reversal valve（52）Input between be also associated with overflow valve（55）.
10. multifunction hydraulic fixture according to claim 9, it is characterised in that：The overflow valve（55）Provided with big I
The overfall of regulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720311346.2U CN206855291U (en) | 2017-03-28 | 2017-03-28 | Multifunction hydraulic fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720311346.2U CN206855291U (en) | 2017-03-28 | 2017-03-28 | Multifunction hydraulic fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206855291U true CN206855291U (en) | 2018-01-09 |
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ID=60815834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720311346.2U Active CN206855291U (en) | 2017-03-28 | 2017-03-28 | Multifunction hydraulic fixture |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110090962A (en) * | 2018-01-31 | 2019-08-06 | 米巴精密零部件（中国）有限公司 | Method for producing a synchronizer hub |
| CN114130997A (en) * | 2021-10-21 | 2022-03-04 | 临沂市鲁蒙水表制造有限公司 | Casting head removing machine for vertical sand shell |
-
2017
- 2017-03-28 CN CN201720311346.2U patent/CN206855291U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110090962A (en) * | 2018-01-31 | 2019-08-06 | 米巴精密零部件（中国）有限公司 | Method for producing a synchronizer hub |
| CN114130997A (en) * | 2021-10-21 | 2022-03-04 | 临沂市鲁蒙水表制造有限公司 | Casting head removing machine for vertical sand shell |
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