A kind of press machine loading device
Technical field
The present invention relates to press machine technical fields, more particularly, to a kind of press machine loading device.
Background technique
As a kind of efficient forging equipment, high velocity ram machine is in aerospace, automobile manufacture, communications and transportation, chemical metallurgy
Etc. essential industries field be widely used.Especially in recent years, the manufacturing rapid development leading with automobile, greatly
The progress for having pushed China's punching press industry greatly, with the quickening of market globalization paces, same industry competition is more and more fierce;With this
Meanwhile more stringent requirements are proposed for reliability of the user to Forging equipment.
For the reliability for guaranteeing press machine, need to carry out punch test before factory.In the prior art, press machine factory is normal
It is tested using driving test, i.e. the direct punching press steel ingot of sliding block, this method is simple and easy, but there are larger drawbacks: stamping press
Not easy to control, misoperation is easy to appear overload, larger to lathe injury, while also will appear bored vehicle problem.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of press machine loading device, is the punch test of press machine
Controllable, stable stamping press is provided, to guarantee going on smoothly for punch test.
To realize above-mentioned technical purpose and the technique effect, the present invention is achieved by the following technical solutions: one
Kind of press machine loading device, it is hydraulic including intermediate cylinder and be located at left and right sides of cylinder symmetrically arranged two
The cylinder piston rod top of cylinder, cylinder is equipped with limit plate by the shaft shoulder, big retaining ring and big nut, in the bottom of cylinder piston rod
Cylinder piston is connected, the cylinder piston is located in cylinder barrel, is cylinder rodless side end cap, top in the bottom of cylinder barrel
There is bar side end cap for cylinder, has in cylinder and be equipped with what the appearance cylinder piston rod for running through its upper and lower surface vertically passed through in bar side end cap
Piston rod through-hole is equipped with cylinder guidance set of the ring set outside cylinder piston rod in piston rod via top, in cylinder guidance set
Top be equipped with cylinder retaining ring.
Further, the bottom of the hydraulic cylinder piston rod of the hydraulic cylinder be equipped with hydraulic cylinder piston, top by the shaft shoulder and
Primary nut is equipped with small retaining ring, the position on the upside of small retaining ring limitation limit plate, and the hydraulic cylinder piston is located in Barrel of Hydraulic Cylinders,
Barrel of Hydraulic Cylinders bottom is hydraulic cylinder rodless side end cap, top is that hydraulic cylinder has bar side end cap, there is bar side end cap in hydraulic cylinder
Top is equipped with end cap, end cap and hydraulic cylinder have corresponding position on bar side end cap be equipped with hold hydraulic cylinder piston rod pass through it is perpendicular
Straight hydraulic rod through-hole has the hydraulic stem via top in bar side end cap to be equipped with ring set outside hydraulic cylinder piston rod in hydraulic cylinder
Guide sleeve.
Further, the cylinder rodless side end cap and hydraulic cylinder rodless side end cap are mounted by means of bolts on substrate
On.
Further, wear ring is equipped in the periphery of cylinder piston.
Further, around a spring, the bottom on the top of spring and cylinder guidance set on cylinder piston club body
It is fixedly connected, bottom end is fixedly connected with the top surface of cylinder piston.
Further, the cylinder piston will be divided into two cavitys up and down inside cylinder barrel, in cylinder rodless side end cap
It is equipped with the high pressure gas injection gallery being connected to the lower section cavity of cylinder barrel, the hydraulic cylinder piston will be in Barrel of Hydraulic Cylinders
Part has the high pressure oil for being equipped on bar side end cap and being connected to cavity above Barrel of Hydraulic Cylinders to fill at upper and lower two cavitys, in hydraulic cylinder
Enter channel.
The beneficial effects of the present invention are:
1. press machine loading device disclosed by the invention uses cylinder as loading element, by adjusting cylinder pressure
Realize the adjustment to load is applied;
2. installing limit plate on cylinder piston rod, and the protrusion height of piston rod is adjusted by the hydraulic cylinder of cylinder two sides,
The loading device is enabled to be applicable in the press machine of different Dimension Types;
3. being equipped with spring on the piston rod between cylinder guidance set and cylinder piston, piston rod is multiple after can reducing load
Impact force when position between small retaining ring and limit plate.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of press machine loading device disclosed by the invention.
Wherein, 1- cylinder piston rod, 2- big nut, the big retaining ring of 3-, 4- limit plate, 5- primary nut, the small retaining ring of 6-, 7- are hydraulic
Cylinder piston rod, 8- end cap, 9- guide sleeve, the hydraulic thick stick of 10- have bar side end cap, 11- Barrel of Hydraulic Cylinders, 12- hydraulic cylinder piston, 13-
Hydraulic cylinder rodless side end cap, 16- cylinder rodless side end cap, 17- cylinder barrel, 18- wear ring, 19- cylinder piston, 20- spring,
21- cylinder has bar side end cap, 22- cylinder guidance set, 23- cylinder retaining ring.
Specific embodiment
1 the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention
It can be easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
In order to which the punch test for press machine provides controllable, stable stamping press, the present invention discloses a kind of press machine
Bed loading device including intermediate cylinder and is located at symmetrically arranged two hydraulic cylinders of cylinder arranged on left and right sides, cylinder
1 top of cylinder piston rod is equipped with limit plate 4 by the shaft shoulder, big retaining ring 3 and big nut 2, connects in the bottom of cylinder piston rod 1
Cylinder piston 19, the cylinder piston 19 are located in cylinder barrel 17, wear ring 18 are equipped in the periphery of cylinder piston 19, in gas
The bottom of cylinder cylinder barrel 17 is cylinder rodless side end cap 16, top is that cylinder has bar side end cap 21, is had in bar side end cap 21 in cylinder
Equipped with the piston rod through-hole that the appearance cylinder piston rod 1 for running through its upper and lower surface vertically passes through, ring is equipped in piston rod via top
The cylinder guidance set 22 outside cylinder piston rod 1 is covered, is equipped with cylinder retaining ring 23 in the top of cylinder guidance set 22, it is living in cylinder
Around a spring 20 on 1 shaft of stopper rod, the top of spring 20 is fixedly connected with the bottom that cylinder guidance covers 22, bottom end and cylinder
The top surface of piston 19 is fixedly connected.
The bottom of the hydraulic cylinder piston rod 7 of the hydraulic cylinder is equipped with hydraulic cylinder piston 12, top passes through the shaft shoulder and primary nut
5 are equipped with small retaining ring 6, and small retaining ring 6 limits the position of 4 upside of limit plate, and the hydraulic cylinder piston 12 is located at Barrel of Hydraulic Cylinders 11
It is interior, 11 bottom of Barrel of Hydraulic Cylinders is hydraulic cylinder rodless side end cap 13, top is that hydraulic cylinder has bar side end cap 10, have in hydraulic cylinder
It is equipped with end cap 8 at the top of bar side end cap 10, has corresponding position on bar side end cap 10 to be equipped with appearance hydraulic cylinder in end cap 8 and hydraulic cylinder
The vertical hydraulic rod through-hole that piston rod 7 passes through has the hydraulic stem via top in bar side end cap 10 to be equipped with ring set in hydraulic cylinder
Guide sleeve 9 outside hydraulic cylinder piston rod 7.
The cylinder rodless side end cap 16 and hydraulic cylinder rodless side end cap 13 are fixedly mounted on substrate 14 by bolt 15
On.
The cylinder piston 19 will be divided into two cavitys up and down inside cylinder barrel 17, set on cylinder rodless side end cap 16
There is the high pressure gas injection gallery being connected to the lower section cavity of cylinder barrel 17;The hydraulic cylinder piston 12 is by Barrel of Hydraulic Cylinders 11
Inside is divided into two cavitys up and down, there is the height for being equipped on bar side end cap 10 and being connected to cavity above Barrel of Hydraulic Cylinders 11 in hydraulic cylinder
Pressure oil injection gallery
Specific operating process are as follows: before press machine carries out punch test, loading device disclosed by the invention is mounted on punching
On the workbench of press bed, high pressure gas, pusher cylinder piston are passed through between cylinder rodless side end cap 16 and cylinder piston 19
Bar 1 stretches out upwards, and limit plate 4 is driven to move up, the hydraulic cylinder of the hydraulic cylinder of cylinder two sides have bar side end cap 10 with it is hydraulic
It is passed through high pressure oil between the cylinder piston 12, under actual motion condition, the high pressure oil of two hydraulic cylinders can also be poured into chamber connection, the party
Method can guarantee that the pressure in two hydraulic cylinders is identical, and the resultant force of two hydraulic cylinder pulling force is greater than the thrust of cylinder, by adjusting
The fuel delivery of cavity adjusts the height of cylinder piston rod 1 on the upside of hydraulic cylinder, is adjusted to cut off the confession of hydraulic cylinder after ideal height
Oil completes height adjustment operation.
When press machine carries out punch test, slide block movement to bottom dead center-nearby, the top of blow cylinder piston rod 1,
Cylinder piston rod 1 moves downward under the influence of the impact force, after sliding block, which leaves lower dead point position, to be moved upwards, cylinder piston rod
1 returns to setting height under the action of compressed air, completes a punch test, and the limit plate 4 in the present invention is mainly used to limit
Determine movement when cylinder piston rod 1 resets upwards after the completion of punching press.Piston between cylinder guidance set 22 and cylinder piston 19
The spring 20 installed on bar 1 can reduce impact force when piston rod 1 after load resets between small retaining ring 6 and limit plate 4.Pass through
The air pressure for adjusting compressed air between cylinder rodless side end cap 16 and cylinder piston 19 can be realized and apply to press machine sliding block
Load be adjusted.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.