A kind of pneumatic type clamping device
Technical field
The present invention relates to technical field of mechanical processing, in particular to a kind of pneumatic type clamping device.
Background technique
Machining refers to the process of to be changed by outer dimension or performance of a kind of mechanical equipment to workpiece.By adding
Difference in work mode can be divided into machining and pressure processing.Turnning and milling plane mill is four kinds of basic processing sides of machining
Formula is the more part and parcel of parts machining, and the main processing completed to part is allowed to can be used for the dress of machine and equipment
Match.Including turnery processing, Milling Process, planing operation, grinding, processing method needed for different parts is different, such as axis class
Part generally only needs turnery processing, but the part having then needs to put achievable part using with wherein two to three kinds or more processing
Processing.Which kind of no matter in machining, require to use fixture, fixture is that machine-building is used to fixed processing pair in the process
As being allowed to occupy correct position, to receive the device of construction or testing.Fixture type can be divided by handling characteristics:1. omnipotent
Universal fixturing, such as machine vice, chuck, sucker, dividing head and rotary table, there is very big versatility, can preferably fit
The transformation of manufacturing procedure and processing object is answered, structure has been formed, size, specification seriation, wherein most of have become machine
A kind of standard accessory of bed;2. specificity fixture is needed for the clamping of certain product parts in some process and is specially designed
Manufacture, service object is single-minded, and specific aim is very strong, and generally by product manufacturing factory designed, designed, there are commonly turning attachment, milling machines to press from both sides
Tool, drill jig, boring template and pallet;3. flexible jig, the special fixture that can be replaced or adjusted components;4. built-up jig, by
The fixture of the standardized component composition of different shape, specification and purposes, the list often replaced suitable for trial production of new products and product
Part, small serial production and temporary duty.Clamping device common at present is typically all to pass through manually implemented clamping, the degree of automation
It is lower, and clamping force is different from every time, and stability is poor.
Summary of the invention
The object of the present invention is to provide a kind of pneumatic type clamping device, the automatic clamping and release realized to workpiece, not only
It is structurally reasonable, high degree of automation, and also clamping force is identical every time, and good reliability improves clamping stability.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of pneumatic type clamping device, it includes pedestal, rack, voussoir guidance set, voussoir, slide bar, slide bar adjusting spiral shell
Mother, compressed spring, pressing plate, briquetting, supporting shaft, bearing trunnion, returning pull-spring, Zola's spring column, right tension spring column, supporting rollern,
Pneumatic cylinder, piston, cylinder body fulcrum bearing, connecting rod, top nut, lower nut, upper valve port, lower valve port, air compressor, rear cooling
Device, air accumulator, pressure-control valve, oil sprayer, logic original part, directional control valve, upper flow control valve, flow down control valve, institute
It states rack to be fixed on the base, voussoir sliding slot is provided in the rack, the voussoir, which can slide up and down, to be arranged in voussoir sliding slot
On, the bottom righthand side of the voussoir is provided with sloping platform, and the quantity of the voussoir guidance set is two groups, it is set in rack, and
Positioned at the left end of voussoir, the voussoir guidance set includes guided bearing seat, guide roller, and the guide roller is rotatably arranged
On guided bearing seat, the guide roller and the fitting of voussoir left end, the slide bar are divided into two sections, and left section is supporting section, right end
For thread segment, the machine frame inside is additionally provided with spring-loaded slot, and the slide bar can be horizontally slipped by supporting section to be arranged in machine
On frame, the supporting rollern is rotatably provided in the left end of slide bar, the concentric setting of the thread segment of the compressed spring and slide bar,
Fitting on the right side of the left end of the compressed spring and the supporting section of slide bar, right end and spring-loaded the slot fitting of the compressed spring,
The supporting rollern is bonded with the sloping platform of voussoir always under the action of compressed spring, and the middle-end of the pressing plate passes through supporting shaft
It is hinged on bearing trunnion, the bearing trunnion is fixed on the right side of rack, and the briquetting is mounted on the upper end of pressing plate, the cunning
The thread segment of bar right end is connected with the lower thread of pressing plate, and slide bar is also threaded on the thread segment of the slide bar and adjusts spiral shell
Mother, the right end of the slide bar adjusting nut and the fitting of pressing plate left end, Zola's spring column are fixed on the rack, the right tension spring column
It is fixed on the downside of pressing plate, the left and right ends of the returning pull-spring are separately connected Zola's spring column and right tension spring column, the cylinder body branch
The upside that seat is fixed on rack is held, the pneumatic cylinder is fixed in cylinder body fulcrum bearing, and the piston can slide up and down setting and exist
In pneumatic cylinder, the connecting rod, which can slide up and down, to be arranged in cylinder body fulcrum bearing, the upper end of the connecting rod and piston thread
Connection, and locked by top nut, the lower end of the connecting rod and voussoir are threadedly coupled, and are locked by lower nut, the gas
The upper end of dynamic cylinder body is provided with enterprising stomata, and the side of the cylinder body fulcrum bearing is provided with lower air inlet, the upper valve port setting
On enterprising stomata, the lower valve port is arranged on lower air inlet, one end of the air compressor connection aftercooler, described
One end of the other end connection air accumulator of aftercooler, one end of the other end connection pressure-control valve of the air accumulator are described
One end of the connection oil sprayer of the other end of pressure-control valve, the other end of the oil sprayer connect logic original part, the logic
The other end of original part connects directional control valve, and the other both ends of the directional control valve by upper flow control valve and flow down respectively
Control valve connects upper valve port and lower valve port.
Further, sliding guide sleeve is provided between the connecting rod and cylinder body fulcrum bearing.
Further, O-ring is provided on the outside of the piston.
Further, the guide roller is rubber roll.
Compared to the prior art the present invention, has the following advantages that and effect:The gas that air compressor generates is cooling after
Enter air accumulator after device, high pressure gas is by successively by pressure-control valve, oil sprayer, logic original part, directional control valve from upper
Flow control valve enters upper valve port, and piston moves downward, is steadily moved downward by connecting rod band dynamic voussoir, the sloping platform on voussoir
Compressed spring and returning pull-spring band dynamic pressure plate counter-clockwise swing are overcome by supporting rollern band moving slide-bar, and the briquetting of pressing plate upper end is real
Now to the clamping of workpiece.To be processed or after the assembly is completed, logic original part controls directional control valve commutation, and high pressure gas is from down-off
Control valve enters lower valve port, and piston is moved upwards by connecting rod band dynamic voussoir, work of the pressing plate in compressed spring and returning pull-spring
With lower clockwise oscillation, the release to workpiece is realized.By adjusting the latched position of top nut, it can be achieved that stroke position above and below voussoir
The adjustment set, to realize the adjustment to pressing plate swing position.Guide roller is rubber roll, is not only advantageous to realize to voussoir
Guiding, and wear small, long service life.It is provided with O-ring on the outside of piston, realizes the sealing of down space on piston, has
Conducive to smooth motion above and below piston.It is provided with sliding guide sleeve between connecting rod and cylinder body fulcrum bearing, reduces connecting rod and cylinder body
Abrasion between fulcrum bearing is conducive to connecting rod smooth motion up and down.The present invention realizes clamping and release to workpiece automatically, no
But structurally reasonable, high degree of automation, and clamping force is identical every time, and good reliability improves clamping stability.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In figure:1. pedestal, 2. racks, 3. voussoir guidance sets, 4. voussoirs, 5. slide bars, 6. slide bar adjusting nuts, 7. compressions
Spring, 8. pressing plates, 9. briquettings, 10. supporting shafts, 11. bearing trunnions, 12. returning pull-springs, 13. Zola's spring columns, 14. right tension springs
Column, 15. supporting rollerns, 16. pneumatic cylinders, 17. pistons, 18. cylinder body fulcrum bearings, 19. connecting rods, 20. top nuts, 21. lower spiral shells
Mother, valve port on 22., 23. lower valve ports, 24. air compressors, 25. aftercoolers, 26. air accumulators, 27. pressure-control valves, 28.
Oil sprayer, 29. logic original parts, 30. directional control valves, flow control valve on 31., 32. dirty control valves, 33. voussoir sliding slots,
34. sloping platform, 35. guided bearing seats, 36. guide rollers, 37. supporting sections, 38. thread segments, 39. spring-loaded slots, 40. upper airs
Hole, 41. lower air inlets, 42. sliding guide sleeves, 43.O shape circle.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited to following embodiments.
As shown in Figure 1, a kind of pneumatic type clamping device, it includes pedestal 1, rack 2, voussoir guidance set 3, voussoir 4, slides
Bar 5, slide bar adjusting nut 6, compressed spring 7, pressing plate 8, briquetting 9, supporting shaft 10, bearing trunnion 11, returning pull-spring 12, Zola
Spring column 13, right tension spring column 14, supporting rollern 15, pneumatic cylinder 16, piston 17, cylinder body fulcrum bearing 18, connecting rod 19, top nut
20, lower nut 21, upper valve port 22, lower valve port 23, air compressor 24, aftercooler 25, air accumulator 26, pressure-control valve 27,
Oil sprayer 28, logic original part 29, directional control valve 30, upper flow control valve 31, flow down control valve 32, and the rack 2 is fixed
On pedestal 1, voussoir sliding slot 33 is provided in the rack 2, the voussoir 4, which can slide up and down, to be arranged on voussoir sliding slot 33,
The bottom righthand side of the voussoir 4 is provided with sloping platform 34, and the quantity of the voussoir guidance set 3 is two groups, is set in rack 2, and
And it is located at the left end of voussoir 4, the voussoir guidance set 3 includes guided bearing seat 35, guide roller 36, the guide roller 36
It is rotatably provided on guided bearing seat 35, the guide roller 36 and the fitting of 4 left end of voussoir, the guide roller 36 is rubber
Idler wheel is not only advantageous to realize the guiding to voussoir 4, and wears small, long service life.It is two sections, left section that the slide bar 5, which is divided to,
For supporting section 37, right end is thread segment 38, is additionally provided with spring-loaded slot 39 inside the rack 2, the slide bar 5 passes through bearing
Section 37, which can horizontally slip, to be arranged in rack 2, and the supporting rollern 15 is rotatably provided in the left end of slide bar 5, the compression bullet
It is bonded on the right side of the concentric setting of the thread segment of spring 7 and slide bar 5, the left end of the compressed spring 7 and the supporting section 37 of slide bar 5, institute
The right end and spring-loaded slot 39 for stating compressed spring 7 are bonded, the supporting rollern 15 under the action of compressed spring 7 always and wedge
The sloping platform 34 of block 4 is bonded, and the middle-end of the pressing plate 8 is hinged on bearing trunnion 11 by supporting shaft 10, the bearing trunnion
11 are fixed on the right side of rack 2, and the briquetting 9 is mounted on the upper end of pressing plate 8, the thread segment 38 and pressing plate 8 of 5 right end of slide bar
Lower thread connection, slide bar adjusting nut 6 is also threaded on the thread segment 38 of the slide bar 5, the slide bar adjusts spiral shell
The right end of mother 6 and the fitting of 8 left end of pressing plate, Zola's spring column 13 are fixed in rack 2, and the right tension spring column 14 is fixed on pressing plate
8 downside, the left and right ends of the returning pull-spring 12 are separately connected Zola's spring column 13 and right tension spring column 14, the cylinder body fulcrum bearing
18 are fixed on the upside of rack 2, and the pneumatic cylinder 16 is fixed in cylinder body fulcrum bearing 18, and the piston 17, which can slide up and down, to be set
It sets in pneumatic cylinder 16, the outside of the piston 17 is provided with O-ring 43, realizes the sealing of down space on piston 17, favorably
In about 17 smooth motion of piston.The connecting rod 19, which can slide up and down, to be arranged in cylinder body fulcrum bearing 18, the connecting rod 19
It is provided with sliding guide sleeve 42 between cylinder body fulcrum bearing 18, reduces the abrasion between connecting rod 19 and cylinder body fulcrum bearing 18, has
Conducive to about 19 smooth motion of connecting rod.The upper end of the connecting rod 19 and piston 17 are threadedly coupled, and are locked by top nut 20
Tightly, the lower end of the connecting rod 19 and voussoir 4 are threadedly coupled, and are locked by lower nut 21, the upper end of the pneumatic cylinder 16
It is provided with enterprising stomata 40, the side of the cylinder body fulcrum bearing 18 is provided with lower air inlet 41, and the upper valve port 22 is arranged upper
On air inlet 40, the lower valve port 23 is arranged on lower air inlet 41, and the air compressor 24 connects the one of aftercooler 25
End, one end of the other end connection air accumulator 26 of the aftercooler 25, the other end connection pressure control of the air accumulator 26
One end of valve 27, one end of the connection oil sprayer 28 of the other end of the pressure-control valve 27, the other end of the oil sprayer 28
Logic original part 29 is connected, the other end of the logic original part 29 connects directional control valve 30, and the directional control valve 30 is in addition
Both ends connect upper valve port 22 and lower valve port 23 by upper flow control valve 31 and dirty control valve 32 respectively.
Through the above technical solutions, a kind of pneumatic type clamping device of the present invention is in use, the gas that air compressor 24 generates
Body enters air accumulator 26 after aftercooler 25, and high pressure gas is by successively former by pressure-control valve 27, oil sprayer 28, logic
Part 29, directional control valve 30 enter upper valve port 22 from upper flow control valve 31, and piston 17 is moved downward, driven by connecting rod 19
Voussoir 4 steadily moves downward, and the sloping platform 34 on voussoir 4 overcomes compressed spring 7 and return to draw by supporting rollern 15 with moving slide-bar 5
For spring 12 with 8 counter-clockwise swing of dynamic pressure plate, the briquetting 9 of 8 upper end of pressing plate realizes the clamping to workpiece.It is to be processed or after the assembly is completed,
Logic original part 29 controls directional control valve 30 and commutates, and high pressure gas enters lower valve port 23 from dirty control valve 32, and piston 17 is logical
It crosses connecting rod 19 to move upwards with dynamic voussoir 4, clockwise oscillation under the action of compressed spring 7 and returning pull-spring 12 of pressing plate 8, it is real
Now to the release of workpiece.By adjust top nut 20 latched position, it can be achieved that about 4 travel position of voussoir adjustment, thus
Realize the adjustment to 8 swing position of pressing plate.The present invention realizes clamping and release to workpiece automatically, not only structurally reasonable, automatically
Change degree is high, and clamping force is identical every time, and good reliability improves clamping stability.
Above content is only illustrations made for the present invention described in this specification.Technology belonging to the present invention
The technical staff in field can make various modifications or additions to the described embodiments or by a similar method
Substitution, content without departing from description of the invention or beyond the scope defined by this claim should belong to this
The protection scope of invention.