A kind of automobile radiators automatic turning loading device
Technical field
The utility model is related to feed mechanism technical field, specifically a kind of automobile radiators automatic turning feeding dress
It sets.
Background technology
Automobile radiators are made of three parts such as intake chamber, water-supplying chamber and radiator cores.Coolant liquid flows in radiator core
Dynamic, air passes through outside radiator.The coolant liquid of heat turns cold due to radiating to air, and cold air then dissipates because absorbing coolant liquid
The heat that goes out and heat up.
Automobile radiators need the cooling fluid apertures to both sides to carry out punching press during processing, and existing technology is in punching press
During need manually to carry out stirring, the degree of automation degree, efficiency is low, and there are security risks.
Utility model content
Utility model aims to solve above-mentioned the degree of automation degree, can not automatic stirring materials the problem of, one kind is provided
Automobile radiators automatic turning loading device.
The technical solution adopted by the utility model to solve its technical problems is that:
A kind of automobile radiators automatic turning loading device, including fixed frame, feeding mechanism, driving feeding mechanism slide
Elevating mechanism is matched for clamping tightly the clamp system of radiator, switching mechanism with feeding mechanism, and the elevating mechanism is located under fixed frame
End, elevating mechanism upper end are connect with feeding mechanism, and switching mechanism is mounted on fixed frame centre position, and clamp system is located at fixed frame
Upper end;
Elevating mechanism includes crane, is slidably connected between crane and fixed frame;
Feeding mechanism includes the first feed rail, pushing structure, and the first feed rail is fixed on crane, pushing structure
It is slidably connected between the first feed rail;
The clamp system includes installation frame, the first movable frame, the second movable frame and the second feed rail, installation
Frame is mounted on fixed frame upper end, is slidably connected between the first movable frame and installation frame, and the second movable frame and first is lived
It is slidably connected between dynamic frame, the second feed rail is mounted on the second movable frame;
The switching mechanism includes mounting bracket, third movable frame, clamping plate and gripping block, and mounting bracket is slidably mounted on solid
Determine in frame, be slidably connected between third movable frame and mounting bracket, clamping plate and gripping block are symmetrical, and gripping block is mounted on folder
On tight plate, clamping plate is slidably connected with third movable frame.
Further, the elevating mechanism further includes first hydraulic cylinder and drives the first motor of crane lifting, and first
Hydraulic cylinder lower end is fixed on fixed frame, and crane both ends are equipped with support plate, and first hydraulic cylinder upper end is connect with support plate, described
It is connected by guide rail slide block between crane and fixed frame;
The first motor is fixed on fixed frame upper surface, and first motor exports the first leading screw of axis connection, on the first leading screw
Lower to be rotatablely connected between both ends and fixed frame, crane left end is fixed with the first nut, and the first nut and the first leading screw coordinate.
Further, first feed rail right side is equipped with the first trough with straight angle, and the first trough with straight angle two sides, which are equipped with, to be slided
Wheel;
The feeding mechanism further includes the second motor for driving pushing structure movement, and the second motor is mounted on the first feed rail
On road.
Further, the pushing structure includes pedestal, second hydraulic cylinder, right angle connecting rod and push rod, pedestal and first into
It is connected by sliding-rail sliding between material track, second hydraulic cylinder is fixed on the base, and right angle connecting rod one end is hinged with pedestal, right angle
Push rod is fixedly mounted in the connecting rod other end, and second hydraulic cylinder tailpiece of the piston rod is hinged with right angle connecting rod right angle;
Second motor output shaft is connected with the second leading screw, and the second leading screw is connect with the first feed rail, pedestal lower end
Equipped with the second nut, the second leading screw and the second nut coordinate.
Further, the first movable frame is in door shape, passes through sliding-rail sliding between the first movable frame and installation frame
Level sliding, installation frame left end are equipped with third motor, and third motor output shaft is connected with third leading screw, third leading screw and installation
It is rotatablely connected between frame, the first movable frame lower end is equipped with third nut, and third leading screw coordinates with third nut;
Second movable frame is located on the right side of the first movable frame, passes through cunning between the second movable frame and the first movable frame
Rail sliding block vertical sliding, the first movable frame upper end are equipped with third hydraulic cylinder, third hydraulic cylinder piston rod end and the second activity
Frame connects.
Further, the second movable frame right end is equipped with connecting rod, and the second feed rail is fixed on connecting rod lower end;
Second feed rail left side upper end is equipped with the second trough with straight angle, and pulley is installed in the second trough with straight angle side.
Further, it is connected by sliding block sliding rail between the third movable frame and mounting bracket, mounting bracket left end is equipped with
4th motor, the 4th motor output end are connected with the 4th leading screw, and third movable frame lower end is equipped with the 4th nut, the 4th leading screw with
4th nut coordinates;
Third movable frame left end is equipped with the 5th motor, and the 5th motor output shaft is fixed with mounting plate, clamping plate and installation
Board mount is slidably connected.
Further, the clamping plate include the first clamping plate and the second clamping plate, gripping block include the first gripping block and
Second gripping block is connected between the first clamping plate and the second clamping plate and mounting plate by sliding-rail sliding, before and after the mounting plate
Both ends are respectively equipped with the 4th hydraulic cylinder and the 5th hydraulic cylinder, and the 4th hydraulic cylinder piston rod end is connect with the first clamping plate, the 5th liquid
Pressure cylinder piston rod end is connect with the second clamping plate, and fluid pressure line is accessed after the 4th hydraulic cylinder and the 5th hydraulic cylinder parallel connection.
Further, the mounting bracket right end is equipped with push plate.
The utility model has the beneficial effects that:
1, the utility model in order to solve the problems, such as automobile radiators during processing can not automatic stirring materials, including into
The cooperation for expecting mechanism, elevating mechanism, clamp system and switching mechanism, passes through feeding mechanism, elevating mechanism, clamp system and overturning
The cooperation of mechanism realizes automatic feed, the overturning of automobile radiators press fitting process, high degree of automation, excellent in efficiency;It does not need
The carrier vehicle radiator by way of manually carrying, saves artificial, while artificial carrier vehicle radiator is there are security risk,
The utility model security performance is high.
2, the first feed rail right side is equipped with the first trough with straight angle, and the first trough with straight angle two sides are equipped with pulley, the second charging
Track left side upper end is equipped with the second trough with straight angle, and pulley is installed in the second trough with straight angle side;During conveying automobile radiators,
First trough with straight angle, the second trough with straight angle and the flange of automobile radiators upper end coordinate, and are pressed from both sides by the first trough with straight angle and the second trough with straight angle
Tight automobile radiators prevent from falling, and pulley can reduce the frictional force between automobile radiators and the first trough with straight angle.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model one;
Fig. 2 is the utility model structure diagram two;
Fig. 3 is partial enlarged view at A in Fig. 2;
Fig. 4 is the utility model rearview;
Fig. 5 is the utility model left view;
Fig. 6 is the utility model switching mechanism structural schematic diagram one;
Fig. 7 is the utility model switching mechanism structural schematic diagram two;
Fig. 8 is the utility model switching mechanism structural schematic diagram three;
Fig. 9 is the utility model switching mechanism vertical view;
Figure 10 is the utility model circuit connection diagram;
Figure 11 is the utility model fluid pressure line connection diagram.
In figure:1, fixed frame, 2, crane, 3, first motor, 4, first hydraulic cylinder, 5, support plate, the 6, first leading screw, 7,
First nut, the 8, first feed rail, the 9, second motor, the 10, first trough with straight angle, 11, pulley, 12, pedestal, the 13, second hydraulic pressure
Cylinder, 14, right angle connecting rod, 15, push rod, the 16, first solenoid valve, 17, second solenoid valve, 18, hydraulic power unit, the 19, second leading screw,
20, the second nut, 21, installation frame, the 22, first movable frame, the 23, second movable frame, the 24, second feed rail, 25,
Three motors, 26, third leading screw, 27, third nut, 28, third hydraulic cylinder, 29, mounting base, 30, third solenoid valve, 31, connecting rod,
32, the second trough with straight angle, 33, mounting bracket, 34, third movable frame, the 35, the 4th motor, the 36, the 4th leading screw, the 37, the 4th nut,
38, the 5th motor, 39, mounting plate, the 40, first clamping plate, the 41, second clamping plate, the 42, first gripping block, 43, second clamps
Block, the 44, the 4th hydraulic cylinder, the 45, the 5th hydraulic cylinder, the 46, the 4th solenoid valve, 47, push plate, 48, control cabinet, 49, power supply.
Specific implementation mode
For convenience of description, it is as shown in Figure 1 now to define coordinate system.
According to Fig. 1 to Fig. 9, a kind of automobile radiators automatic turning loading device, including fixed frame 1, feeding mechanism,
The elevating mechanism of driving feeding mechanism sliding is matched for clamping tightly the clamp system of radiator, switching mechanism, the liter with feeding mechanism
Descending mechanism is located at 1 lower end of fixed frame, and elevating mechanism upper end is connect with feeding mechanism, and switching mechanism is mounted on 1 interposition of fixed frame
It sets, clamp system is located at 1 upper end of fixed frame;
Elevating mechanism includes crane 2, is slidably connected between crane 2 and fixed frame 1;
Feeding mechanism includes the first feed rail 8, pushing structure, and the first feed rail 8 is fixed on crane 2, pusher
It is slidably connected between structure and the first feed rail 8;
The clamp system includes installation frame 21, the first movable frame 22, the second movable frame 23 and the second feed rail
Road 24, installation frame 21 are mounted on 1 upper end of fixed frame, are slidably connected between the first movable frame 22 and installation frame 21, and second
It is slidably connected between movable frame 23 and the first movable frame 22, the second feed rail 24 is mounted on the second movable frame 23;
The switching mechanism includes mounting bracket 33, third movable frame 34, clamping plate and gripping block, the sliding peace of mounting bracket 33
It in fixed frame 1, is slidably connected between third movable frame 34 and mounting bracket 33, clamping plate and gripping block are symmetrical, folder
Tight block is mounted on clamping plate, and clamping plate is slidably connected with third movable frame 34.
The elevating mechanism further includes first hydraulic cylinder 4 and the first motor 3 that driving crane 2 lifts, first hydraulic cylinder 4
Lower end is fixed on fixed frame 1, and 2 both ends of crane are equipped with support plate 5, and 4 upper end of first hydraulic cylinder is connect with support plate 5, described
It is connected by guide rail slide block between crane 2 and fixed frame 1;2 left end front and rear sides of crane are equipped with sliding block, per the cunning of side two
Block, 1 right end of fixed frame position corresponding with sliding block are equipped with sliding rail, and sliding block coordinates with sliding rail, and crane 2 is above and below sliding block and sliding rail
Mobile, first hydraulic cylinder 4 is connect by fluid pressure line with hydraulic power unit 18, and fluid pressure line is equipped with the first solenoid valve 16, passes through
First solenoid valve 16 controls the lifting of first hydraulic cylinder 4, and 4 lower end of first hydraulic cylinder is bolted on 1 bottom end of fixed frame, protects
Card first hydraulic cylinder 4 not will produce deflection, and during crane 2 lifts, first hydraulic cylinder 4 plays guiding and assistance for lifting
Effect, reduce the frictional force between sliding block and sliding rail, increase the service life.
The first motor 3 is fixed on 1 upper surface of fixed frame, and first motor 3 exports the first leading screw of axis connection 6, first
It is rotatablely connected between 6 upper and lower ends of thick stick and fixed frame 1,2 left end of crane is fixed with the first nut 7, the first nut 7 and first
Thick stick 6 coordinates.First motor 3 is bolted on 1 upside of fixed frame, and 6 upper end of the first leading screw passes through fixed frame 1 and first motor
3 output shafts are connected by shaft coupling, and end floor beam is internally provided with bearing on fixed frame 1, and 6 upper end of the first leading screw passes through bearing and fixation
Frame 1 is rotatablely connected, and 6 lower end of the first leading screw is rotatablely connected with 1 lower end of fixed frame by bearing, and the first nut 7 is welded on fixed frame 1
On, first motor 3, which is powered, to be run, and 3 output shaft of first motor drives the rotation of the first leading screw 6, and the first nut 7 does not turn, at first
Crane 2 is moved up and down along sliding block and sliding rail under the action of thick stick 6 and the first nut 7.
First feed rail, 8 right side is equipped with the first trough with straight angle 10, and 10 two sides of the first trough with straight angle are equipped with pulley 11;
During transporting automobile radiators, the first trough with straight angle 10 is used to hook the flange of automobile radiators upper end, 11 energy of pulley
Enough reduce the frictional force between automobile radiators and the first trough with straight angle 10.
The feeding mechanism further includes the second motor 9 for driving pushing structure movement, and the second motor 9 is mounted on the first charging
On track 8.
The pushing structure includes pedestal 12, second hydraulic cylinder 13, right angle connecting rod 14 and push rod 15, pedestal 12 and first into
It being connected by sliding-rail sliding between material track 8,12 lower face of pedestal is equipped with sliding block, and 8 upper surface of the first feed rail is equipped with sliding rail,
Sliding block coordinates with sliding rail, and second hydraulic cylinder 13 is fixed on pedestal 12, and connecting rod 14 one end in right angle is hinged with pedestal 12, right angle connecting rod
Push rod 15 is fixedly mounted in 14 other ends, and 13 tailpiece of the piston rod of second hydraulic cylinder is hinged with 14 right angle of right angle connecting rod;Second hydraulic cylinder
13 logical fluid pressure lines are connect with hydraulic station 18, and fluid pressure line is equipped with second solenoid valve 17, pass through the control of second solenoid valve 17 the
Two hydraulic cylinders 13 stretch, and when needing to promote automobile radiators, 13 piston rod of second hydraulic cylinder stretches out, and push rod 15 turns clockwise
Dynamic, during pushing structure moves, push rod 15 can be contacted with automobile radiators, to push automobile radiators to move.
Second motor, 9 output shaft is connected with the second leading screw 19, and the second leading screw 19 is connect with the first feed rail 8, bottom
12 lower ends of seat are equipped with the second nut 20, and the second leading screw 19 and the second nut 20 coordinate.First feed rail, 8 both ends are equipped with bearing,
It is rotatablely connected by bearing between second leading screw, 19 both ends and the first feed rail 8, the second motor 9, which is powered, to be run, the second motor 9
The second leading screw 19 is driven to rotate, due to being connected by sliding-rail sliding between pedestal 12 and the first feed rail 8, pedestal 12 will not produce
Raw rotation, under the action of the second leading screw 19 and the second nut 20, pedestal 12 moves on the first feed rail 8, to drive
Second hydraulic cylinder 13 and push rod 15 move, and push automobile radiators movement.
Installation frame 21 is bolted on 1 upper surface of fixed frame, and the first movable frame 22 is in door shape, the first activity
It is slided by sliding-rail sliding level between frame 22 and installation frame 21,21 upper surface rear and front end of installation frame is equipped with sliding rail,
Sliding rail is horizontal, and 22 lower face rear and front end of the first movable frame is respectively provided with two sliding blocks, and sliding rail coordinates with sliding block, installation frame 21
Left end is equipped with third motor 25, and third motor 25 is fixed on 21 upper surface left end centre position of installation frame, and third motor 25 is defeated
Shaft is connected with third leading screw 26, and bearing, third leading screw 26 and installation are equipped between 26 both ends of third leading screw and installation frame 21
It is rotatablely connected by bearing between frame 21,22 lower end of the first movable frame is equipped with third nut 27, third leading screw 26 and third
Nut 27 coordinates;Third motor 25, which is powered, to be run, and third leading screw 26 rotates, and third nut 27 is moved along the direction of sliding rail, to
The direction of the first movable frame 22 in the horizontal direction is driven to move right.
Second movable frame 23 is located at the right side of the first movable frame 22, the second movable frame 23 and the first movable frame 22 it
Between by sliding-rail sliding vertical sliding, be equipped with sliding rail on the right side of 22 door shape supporting leg of the first movable frame, the second movable frame 23 is left
Side position corresponding with sliding rail is equipped with sliding block, and each sliding rail corresponds to two sliding blocks, and sliding rail coordinates with sliding block, the first movable frame 22
Upper end is equipped with third hydraulic cylinder 28, and 28 tailpiece of the piston rod of third hydraulic cylinder is connect with the second movable frame 23.First movable frame
22 upper ends centre position are equipped with mounting base 29, and mounting base 29 is bolted on the first movable frame 22, third hydraulic cylinder
28 cylinder body ends are bolted with mounting base 29, and third hydraulic cylinder 28 is connect by fluid pressure line with hydraulic power unit 18, hydraulic pressure
Pipeline is equipped with third solenoid valve 30, and it is flexible to control third hydraulic cylinder 28 by third solenoid valve 30, passes through third hydraulic cylinder
28 the second movable frames 23 of driving move in the vertical direction along sliding-rail sliding.
Second movable frame, 23 right end is equipped with connecting rod 31, and the second feed rail 24 is fixed on 31 lower end of connecting rod;Second charging
24 left side upper end of track is equipped with the second trough with straight angle 32, and pulley 11 is installed in 32 side of the second trough with straight angle.During the work time, by vapour
Vehicle radiator is hung on the first feed rail 8, and first motor 3 rises the first feed rail 8, and the first movable frame 22 is moved right
Go out, then the second movable frame 23 is moved down, until the second feed rail 24 and the first feed rail 8 maintain an equal level, the second right angle
Slot 32 tangles the flange of the automobile radiators other side, and the first movable frame 22 of control moves to left, and automobile radiators are clamped, by the
One trough with straight angle 10 and the second trough with straight angle 32 coordinate so that automobile radiators are not fallen out.
It is connected by sliding-rail sliding between 33 both ends of mounting bracket and fixed frame 1,33 upper end of mounting bracket is equipped with leading screw, under leading screw
End across fixed frame 1 and with mounting bracket 33 be rotatablely connected, 1 upper end of fixed frame be equipped with nut, leading screw upper end pass through nut, leading screw with
Nut coordinates, and the part that leading screw upper end is pierced by nut is equipped with handle, and when operation, by handle rotational lead screw, leading screw is in nut
Rotation makes leading screw will produce to move up and down, to drive mounting bracket 33 to be moved up and down along sliding rail, the third movable frame 34
It is connect by sliding block sliding rail between mounting bracket 33,33 rear and front end of mounting bracket is respectively equipped with sliding rail, under third movable frame 34
End is respectively equipped with sliding block with sliding rail, and each sliding rail corresponds to two sliding blocks, and 33 left end of mounting bracket is equipped with the 4th motor 35, the 4th motor
35 output ends are connected with the 4th leading screw 36, and 34 lower end of third movable frame is equipped with the 4th nut 37, the 4th leading screw 36 and the 4th spiral shell
Mother 37 coordinates;4th motor 35, which is powered, to be run, and the 4th leading screw 36 rotation the 4th nut 37 of driving is moved in the horizontal direction along sliding rail.
34 left end of third movable frame is equipped with the 5th motor 38, and 38 output shaft of the 5th motor is fixed with mounting plate 39, clamps
Plate is connect with 39 bracket slide of mounting plate.
The clamping plate includes the first clamping plate 40 and the second clamping plate 41, and gripping block includes the first gripping block 42 and second
Gripping block 43 is connected between first clamping plate 40 and the second clamping plate 41 and mounting plate 39 by sliding-rail sliding, the mounting plate
39 rear and front ends are respectively equipped with the 4th hydraulic cylinder 44 and the 5th hydraulic cylinder 45,44 tailpiece of the piston rod of the 4th hydraulic cylinder and the first clamping plate
40 connections, 45 tailpiece of the piston rod of the 5th hydraulic cylinder are connect with the second clamping plate 41, and the 4th hydraulic cylinder 44 and the 5th hydraulic cylinder 45 are in parallel
After access fluid pressure line.Hydraulic power unit is connected by the 4th solenoid valve 46 after 4th hydraulic cylinder 44 and 45 parallel connection of the 5th hydraulic cylinder
18, the parallel connection in fluid pressure line of the 4th hydraulic cylinder 44 and the 5th hydraulic cylinder 45 can ensure the first clamping plate 40 and the second clamping plate
41 move synchronously so that the first gripping block 42 and the second gripping block 43 can clamp automobile radiators, prevent automobile radiators from falling
It falls;When overturning, the first gripping block 42 and the second gripping block 43 clamp automobile radiators, and the second movable frame 23 moves right, the
Four motors 35 rotate, and drive the rotation of the 4th leading screw 36, to drive third movable frame 34 to move right, the first feed rail at this time
Road 8, the second feed rail 24 are detached with automobile radiators, do not influence vapour when the first clamping plate 40 and the second clamping plate 41 reach
When vehicle radiator is overturn, the 5th motor 38 rotation so that automobile radiators are overturn, and after having overturn, third movable frame 34 is to the left
Mobile, automobile radiators are hung on the first feed rail 8, and the second feed rail 24 moves to left, and are clamped automobile radiators, are passed through charging
Mechanism re-starts charging.
33 right end of the mounting bracket is equipped with push plate 47.Push plate 47 is used to hold automobile radiators, keeps automobile radiators vertical,
Prevent automobile radiators from generating rotation and falling.
According to Figure 10 to Figure 11, first motor 3, the second motor 9, third motor 25, the 4th motor 35 and the 5th electricity
Machine 38 after conductor in parallel with control cabinet 48 and power supply 49 by connecting;4th hydraulic cylinder 44 and the 5th hydraulic cylinder 45 are in parallel, in parallel
Circuit afterwards and first hydraulic cylinder 4, second hydraulic cylinder 13, third hydraulic cylinder 28 is in parallel is followed by hydraulic power unit 18;First electromagnetism
Pass through conducting wire with control cabinet 48 and power supply 49 after valve 16,46 parallel connection of second solenoid valve 17, third solenoid valve 30 and the 4th solenoid valve
Connection, is equipped with the switch for controlling each motor and solenoid valve in control cabinet, control cabinet for control the order of work of motor with
And hydraulic cylinder priority, internal circuit connection structure are the prior art, do not do excessively repeat again.
When work, first motor 3 is controlled by control cabinet 48 first and is rotated so that the first feed rail 8 declines, by automobile
Radiator is hung on the first feed rail 8, and push plate 47, which holds automobile radiators, prevents automobile radiators rotation from falling, control cabinet 48
Control third motor 25 and third solenoid valve 30 are so that the second feed rail 24 is moved to fair with the first feed rail 8 and clamps
Automobile radiators, control cabinet 48 control the rotation of the second motor 9, shift in press fitting unit automobile radiators onto by push rod 15 and carry out
Press fitting, automobile radiators after press fitting, released automobile radiators by charging ram, controlled at this time by second solenoid valve 17
Second hydraulic cylinder 13 processed is shunk so that push rod 15 rises certain angle, and automobile radiators release mistake herein under push rod 15
Cheng Zhong, push rod 15 do not enter in press fitting unit, and the equipment for releasing automobile radiators, car radiation are equipped in press fitting unit
Device is pushed back by push rod 15 again after releasing press fitting unit, and press fitting unit is the prior art, does not do excessively repeat herein, the second motor 9
Driving push rod 15 is shifted onto between the first gripping block 42 and the second gripping block 43, at this point, control cabinet 48 controls the rotation of the 4th motor 35,
First gripping block 42 and the second gripping block 43 move right, and control cabinet 48 controls the 4th solenoid valve 46 and connects, the 4th hydraulic cylinder 44
It is moved synchronously with the 5th hydraulic cylinder 45 so that the first gripping block 42 and the second gripping block 43 can clamp automobile radiators, at this time
Control cabinet control third motor 25 and 30 second feed rail 24 of third solenoid valve are detached with the first feed rail 8, control cabinet 48
The rotation of the 4th motor 35 is controlled, the first gripping block 42 and the second gripping block 43 move right, later, the 5th electricity of the control of control cabinet 48
Machine 38 rotates, and automobile radiators rotary movement is completed in the driving of the 5th motor 38, and the first gripping block 42 and the second gripping block 43 are to the left
It is mobile, automobile radiators are hung on the first feed rail 8, control cabinet 48 controls third motor 25 and third solenoid valve 30 makes
Second feed rail 24 clamps automobile radiators, and control cabinet 48 controls the rotation of the second motor 9, by push rod 15 by automobile radiators
It shifts onto in press fitting unit and automobile radiators another side is pressed, released from press fitting unit after being pressed, pass through charger
The cooperation of structure, elevating mechanism, clamp system and switching mechanism realizes automatic feed, the overturning of automobile radiators press fitting process,
High degree of automation, excellent in efficiency;Need not by way of manually carrying carrier vehicle radiator, save artificial while artificial
For carrier vehicle radiator there are security risk, the utility model security performance is high.
It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but not to this practicality newly
The limitation of type protection domain, on the basis of technical solutions of the utility model, those skilled in the art need not pay creativeness
The various modifications or changes that working can make are still within the scope of the present invention.