Scroll plate fixture for milling tooling
Technical field
The utility model belongs to the technical field of milling fixture tooling, is specifically related to scroll plate fixture for milling tooling.
Background technique
Scroll compressor is by a fixed involute scroll plate and the involute fortune in eccentric convolution translation
The compressor of orbiter composition collapsible volume.Wherein mostly important component is exactly scroll plate, and compressor is to its scroll plate
Required precision is higher, and mismachining tolerance preferably must be held in reasonable range, could produce qualified scroll plate.
Existing scroll plate milling fixture mostly uses greatly fluid pressure type or pneumatic type or electrically-operated chuck, this three kinds only to whirlpool
Capstan bottom carries out clamping, and such installation way Shortcomings place: when cutter is in milling scroll plate blank, cutter can be right
Scroll plate inner wall or outer wall apply biggish cutting force to cut surplus, and blank has the trend with tool motion, chuck pair
Vortex pan bottom applies active force, and leading to the machined surface of scroll plate blank, there are biggish mismachining tolerances.And existing fixture is big
Can not achieve clamp fixture realizes rapid conversion between the shape of different vortex pan bottoms more, needs to re-replace fixture progress
Processing, inconvenient for operation, production efficiency is lower.It is not able to satisfy the demand of a variety of scroll plate bottom structures of plant produced.
Such problem is badly in need of solving, so proposing scroll plate fixture for milling tooling.
Summary of the invention
The utility model to be solved deficiency in the prior art, the quality of production, raising effect for further scroll plate
Rate, reduce enterprise as production and processing error it is larger caused by economic loss, factory can also be realized to scroll plate different structure
Production requirement.
To achieve the goals above, the utility model uses following scheme: scroll plate fixture for milling tooling, wherein packet
Include swelling portion, positioning region and enforcement division.
If the swelling portion includes the first reference seat, the second reference seat and dry plate gripping block;First reference seat and the
It is equipped with connecting rod between two reference seats and is fixedly connected as entirety;Stepped hole is offered in the middle part of first reference seat;Several
The bottom outside of the gripping block is equipped with protrusion, and protrusion is rotatably connected on the inside of stepped hole;Several gripping blocks
The section of inner sidewall bottom is set as arc;Be fixedly connected with fixture block at the top of several described gripping blocks, the fixture block it is interior
Side wall is equipped with tooth line.
The positioning region is located at the inside of gripping block, including the first positioning plate, several claws, the first positioning pin and second
Positioning plate;First positioning plate is fixedly connected with the second positioning plate;The section of the lateral wall bottom of second positioning plate is set
For arc, match with the inner sidewall of gripping block;Positioning board slot is offered on first positioning plate;On second positioning plate
Offer positioning plate hole;The positioning board slot is corresponding with the positioning position of plate hole;Several described claws are in positioning plate hole
Internal activity connection;Locating slot is offered in the middle part of first positioning plate;Positioning is offered in the middle part of second positioning plate
Hole;The locating slot and location hole are matched with the first positioning pin;The bottom of second positioning plate is additionally provided with the second positioning pin;
The enforcement division includes cylinder, the first fixed plate and the second fixed plate;The cylinder is secondary cylinder;The cylinder
It is fixedly connected in the second reference seat;The second piston rod of the cylinder be fixedly connected sequentially from bottom to top have the first fixed plate and
Second fixed plate;The first stage piston bar of the cylinder is fixedly connected sequentially has the first positioning plate and the first positioning pin from bottom to top;
The lateral wall of first fixed plate is equidistantly laid with several the first connecting plates;The side of first connecting plate is equipped with the
One connecting rod, and one end of first connecting rod is rotatably connected to first horizontal plate, the other end of first connecting rod is rotatably connected on the first company
The side outer wall of fishplate bar;The lateral wall of second fixed plate is equidistantly laid with several the second connecting plates;Described second connects
The side of fishplate bar is equipped with second connecting rod, and one end of second connecting rod is rotatably connected to second horizontal plate, the other end of second connecting rod
It is rotatably connected on the side outer wall of the second connecting plate;The first horizontal plate and second horizontal plate are movably connected in the first positioning
The inside of plate hole;The first horizontal plate and second horizontal plate are matched with corresponding claw respectively to be connected.
Further, the positioning board slot is equipped with two groups, and the respectively first positioning board slot and second position board slot;Described
One positioning board slot and second positioning board slot opening direction on the contrary, and first positioning board slot with second position board slot equidistantly interlock
It lays;
Further, the positioning plate hole is equipped with two groups, and two groups of holes are respectively the first positioning plate hole and the second positioning plate hole;
It is described first positioning plate hole and second positioning plate hole opening direction on the contrary, and first positioning plate hole and second positioning plate hole interlock
It is equidistant to lay.
Further, the width of the first positioning plate hole and the second positioning plate hole is greater than the first positioning board slot and second and determines
The width of position board slot.
Further, it is described first positioning board slot and second positioning board slot inside offer respectively with first horizontal plate and
The track groove that second horizontal plate matches.
Further, the inside of the first horizontal plate and second horizontal plate offers T-slot, and the inner wall of T-slot
Equipped with teeth.
Further, the claw includes fixed block and backing plate;The fixed block is fixedly connected by shank of bolt with backing plate,
And the top of backing plate is equipped with frosted layer.
Further, the top of the backing plate and the inner wall of T-slot match.
Further, the rotation direction of the first connecting rod and the rotation direction of second connecting rod are opposite.
Further, torsional spring is equipped between several described gripping blocks and the first reference seat.
The invention also discloses the application methods of scroll plate fixture for milling tooling, comprising the following steps:
Step 1: standard annulus is placed between the fixed block on first horizontal plate and second horizontal plate, passes through adjusting
Cylinder moves up, and makes first horizontal plate to the medial movement of the first positioning plate hole, and second horizontal plate positions plate hole to second
Outside is mobile, by clamping standard annulus for calibrating positioning;
Step 2: adjusting cylinder makes its claw be located at the position of design requirement, and the blank of bottom after processing is completed is put
It is placed in the top of the second positioning plate, makes the axis hole and the first detent fit of its blank bottom;
Step 3: it adjusts cylinder and moves down, the first positioning plate and the second positioning plate move down therewith, make its gripping block
Clamp blank;
Step 4: continue adjusting cylinder and move down, the fixed block on first horizontal plate and second horizontal plate is respectively inwards
Side and outside are mobile, are clamped to the cylindrical hole of blank bottom;
Step 5: starting milling machine carries out milling to blank, its cylinder is moved upward to home position after the completion, is removed
The blank completed the process;Blank is reinstalled, repeats step 2 to step 5.
Compared with prior art, the present invention can obtain following technical effect:
(1) present invention is equipped with the first reference seat articulated connection gripping block, and torsional spring is equipped between gripping block and the first reference seat.
The positioning accurate of gripping block can be effectively ensured to initial position is clamped and automatically returned on the outside of scroll plate in gripping block
Degree, prevents occurring biggish mismachining tolerance when subsequent blank is processed.
The piston rod of (2) first positioning pins, the first fixed disk and the second positioning disk and cylinder is fixed, and can pass through tune
The piston rod of displacements of cylinders realizes the clamping function of claw, and gripping block and cutting force are eliminated in milling blank and is processed to blank
The influence of error.First positioning plate and the second positioning plate can be fixedly connected by the first positioning pin with piston rod, while limit whirlpool
Capstan freedom degree.
The lateral wall of (3) second positioning plates is equipped with the arc that matches with gripping block inner sidewall, by regulating piston bar into
Row moves down, two-way interaction, so that its fixture block is clamped scroll plate outer wall, will effectively be fixed on the outside of blank.
(4) positioning plate hole width is greater than the width of positioning board slot, claw can be effectively limited in positioning plate hole, be prevented
Only claw stretches out too long, the effective moving range for guaranteeing clamping effect and piston rod.
(5) claw is equipped with fixed block and backing plate, backing plate and fixed plate by shank of bolt be fixed with first level bar and
The separation of second horizon bar, and then it is applicable in the scroll plate of different bottom structures.
(6) first connecting rod and second connecting rod steering on the contrary, by the mobile realization claw of piston rod outwardly or inwardly into
Row is mobile and then clamps blank, and then eliminates the influence of cutting force and clamping force to machined surface.
(7) first positioning board slots and the second locating slot are equidistantly interspersed, it is ensured that the intensity of the first positioning plate, together
When it is easy to setup, by the first positioning plate and the second positioning plate it is fixed after, first horizontal plate and second horizontal plate are carried out effective
Ground is fixed.First positioning plate hole and the second positioning plate hole are equidistantly laid staggeredly, and position board slot and the second positioning plate with first
Slot is corresponding, and first horizontal plate and second horizontal plate are fixed with corresponding claw respectively, by claw control in positioning plate hole
It moves freely, the power that vortex pan bottom is subject to can effectively be dispersed, avoid concentrating a little biggish processing of appearance from missing
Difference.
(8) cylinder uses secondary cylinder, is moved by a second piston rod, is sequentially completed clamp fixture to the folder of blank
The tight and internal work clamped.First the outside of blank is clamped, the self-centering function of gripping block may be implemented, in turn
Guarantee the precision of clamping of the internal claw to blank bottom structure, reverse procedure clamping blank will increase mismachining tolerance.
(9) in application method, using a milling is first carried out respectively to gripping block and claw, guarantee gripping block and claw
Circularity is conducive to substantially reduce influence of the fixture to blank machining accuracy, and then improves machining accuracy.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model;
Fig. 2 is the structural schematic diagram of the positioning region of the utility model;
Fig. 3 is the structural schematic diagram of the enforcement division of the utility model;
Fig. 4 is the sectional view of the positioning region of the utility model;
Fig. 5 is the positioning board slot, positioning plate hole and claw sectional view of the utility model;
Fig. 6 be the utility model installation after clamp face structure sectional view;
Sectional view when Fig. 7 is the installation blank processing of the utility model.
In figure: 1, the second reference seat, the 2, first reference seat, 3, gripping block, 4, connecting rod, 5, cylinder, the 6, first positioning plate
Hole, the 7, second positioning plate hole, the 8, first positioning pin, the 9, second positioning plate, 10, locating slot, the 11, first positioning plate, 12, first is fixed
Position board slot, the 13, second positioning board slot, 14, location hole, 15, fixture block, 16, first connecting rod, 17, first horizontal plate, 18, second connects
Bar, the 19, first fixed plate, 20 second connecting rods, the 21, second fixed plate, the 22, second connecting plate, 23, second horizontal plate, 24, solid
Determine block, 25, backing plate, the 26, second positioning pin.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
Embodiment 1:
As shown in Figures 1 to 6, scroll plate fixture for milling tooling, including swelling portion, positioning region and enforcement division.
Swelling portion includes the first reference seat 2, the second reference seat 1 and six gripping blocks 3;First reference seat 2 and the second benchmark
It is bolted between seat 1 by four connecting rods 4 as entirety.The middle part of first reference seat 2 offers the stepped hole of second order.Six
The bottom outside of gripping block 3 is equipped with protrusion, and protrusion is hingedly connected to the inside of the stepped hole of the first rank.Six gripping blocks 3
The section of inner sidewall bottom is set as arc, and facilitating internal structure to act on it makes it clamp blank.Six gripping blocks 3
Top is connected with fixture block by the hex bolts of 10mm, and fixture block is equipped with tooth line, for clamping the outer ring of blank.
Positioning region is located at the inside of six formed annulus of gripping block 3, including the first positioning plate 11, six claws, superfinishing
Second positioning plate 9 of close the first positioning pin 8 and ultraprecise.First positioning plate 11, the first positioning pin 8 and the second positioning plate 9 are same
Axle center.First positioning plate 11 is bolted with the second positioning plate 9.The section of the lateral wall bottom of second positioning plate 9 is set as arc,
It is matched with the inner sidewall of six gripping blocks 3, the spacing of the inner sidewall of the lateral wall and gripping block 3 of the second positioning plate 9 is 4mm.
The arc shaped inside wall effect to gripping block 3 is moved down by the second positioning plate 9, realizes that gripping block 3 clamps the function of blank.
Positioning board slot is offered on first positioning plate 11;It positions board slot and is equipped with two groups, the respectively first positioning 12 He of board slot
Second positioning board slot 13;The opening direction of first positioning board slot 12 and the second positioning board slot 13 is on the contrary, and the first positioning board slot 12
It is equidistantly laid staggeredly with the second positioning board slot 13, is effectively prevented from influence of the positioning board slot to positioning plate intensity.
Positioning plate hole is offered on second positioning plate 9, positioning plate hole is equipped with two groups, and two groups of holes are respectively the first positioning plate hole
6 and second position plate hole 7;The opening direction of first positioning plate hole 6 and the second positioning plate hole 7 is on the contrary, and the first positioning 6 He of plate hole
Second positioning plate hole 7 is staggeredly equidistant to be laid.It is corresponding with the positioning position of plate hole to position board slot, positioning board slot can be convenient dress
First level block 17 and the second horizontal block 23 are pressed from both sides, positioning plate hole will limit claw and move inside positioning plate hole, cannot exceed it
Regional scope.Its bonding strength can be increased simultaneously, gripping block 3 is avoided to be crushed the second positioning plate 9 and the first positioning plate 11.Six
A claw can be free to slide in the inside of positioning plate hole, in processing, offsets gripping block 3 and cutter to blank by claw
Mismachining tolerance is effectively ensured in the reasonable scope in the radial cutting force of part.The middle part of first positioning plate 11 offers locating slot 10;
The middle part of second positioning plate 9 offers location hole 14;Locating slot 10 and location hole 14 are matched with the first positioning pin 8, guarantee whirlpool
Capstan is in the middle part of the second positioning plate 9.When to vortex chuck clamping, preventing movement causes the error of later period milling to increase
Greatly.The bottom of second positioning plate 9 is additionally provided with the second positioning pin 26, for limiting the blank of scroll plate in the second positioning plate 9
Rotation.
Enforcement division includes secondary cylinder 5, the first fixed plate 19 and the second fixed plate 21.First fixed plate 1 and second is fixed
Plate 21 and the first positioning pin 8 are concentric.Cylinder 5 is bolted in the second reference seat 1, the second piston rod of cylinder 5 from lower and
On successively socket be connected with the first fixed plate 19 and the second fixed plate 21;The second piston rod of cylinder 5 successively bolt from bottom to top
It is connected with the first positioning plate 11 and the first positioning pin 8.It is worked by the substep of a second piston rod, can successively realize blank
Outer wall clamp, then the inside of blank is clamped, and then guarantee the shadow of blank cutting force and clamping force in process
It rings.First the outside of blank is clamped, the self-centering function of gripping block, and then the claw pair inside guarantee may be implemented
The precision of the clamping of blank bottom structure, reverse procedure, which clamps blank, will increase mismachining tolerance.
The lateral wall of first fixed plate 19 is equidistantly laid there are three the first connecting plate 18.The side of first connecting plate 18 is set
There is first connecting rod 16, and one end of first connecting rod 16 is hingedly connected with first horizontal plate 17, the other end of first connecting rod 16 is hinged
It is connected to the side outer wall of the first connecting plate 18, forms link mechanism, realizes first level bar 17 in positioning board slot by cylinder 5
It is interior free to slide and more uniform in the process radial force for clamping blank.
The lateral wall of second fixed plate 21 is equidistantly laid there are three the second connecting plate 22;The side of second connecting plate 22 is set
There is second connecting rod 20, and one end of second connecting rod 20 is rotatably connected to second horizontal plate 23, the other end rotation of second connecting rod 20
It is connected to the side outer wall of the second connecting plate 22, forms link mechanism, realizes first level bar 17 in positioning board slot by cylinder 5
It is interior free to slide and more uniform in the process stress for clamping blank.
First horizontal plate 17 and the inside free to slide in positioning board slot of second horizontal plate 23, three 17 Hes of first horizontal plate
Three second horizontal plates 23 are clamped with corresponding claw connect respectively.First level bar is indirectly controlled by the effect of cylinder 5
17 and second horizon bar 23 movement, by clamp blank position, while eliminate in milling process gripping block 3 and cutter
Influence to blank.
The width of first positioning plate hole 6 and the second positioning plate hole 7 is greater than the first positioning board slot 12 and the second positioning board slot 13
Width, claw can be limited in positioning plate hole inside, prevent claw transition stretch out, influence clamping effect, cause to process
The excessive mismachining tolerance in face.
The inside of first positioning board slot 12 and the second positioning board slot 13 offers and first horizontal plate 17 and the second water respectively
The track groove that plate 23 matches convenient for the clamping of first horizontal plate 17 and second horizontal plate 23 and moves freely.
The inside of first horizontal plate 17 and second horizontal plate 23 offers T-slot, and the inner wall of T-slot is equipped with teeth.
Claw includes fixed block 24 and backing plate 25, and fixed block 24 is fixedly connected by shank of bolt with backing plate 25, and backing plate 25
Top be equipped with frosted layer.
Frosted layer and teeth cooperate, and by adjusting shank of bolt, make its backing plate 25 and first horizontal plate 17 or second horizontal plate
23 are detached from the movement carried out alone, and then realize that the function that various shapes are carried out with positioning clamping may be implemented in claw.
The rotation direction of first connecting rod 16 and the rotation direction of second connecting rod 20 are on the contrary, be effectively ensured 17 He of first horizontal plate
Second horizontal plate 23 carries out the movement of opposite direction, for eliminating the influence of cutting force and radial clamping force to blank.
It is equipped with torsional spring between six gripping blocks 3 and the first reference seat 2, is completed the process for gripping block 3 to blank
Afterwards, initial position can be automatically returned to, gripping block 3 is avoided to deviate, influences the processing of following blank.
After clamp fixture is mounted on lathe, and for the first time before use, being distinguished using milling machine gripping block 3 and claw
Progress milling is primary, guarantees the circularity of gripping block 3 and claw, effectively improves machining accuracy.
Embodiment 2:
Unlike the first embodiment:
The quantity of claw, positioning board slot and positioning plate hole is four, is also able to achieve the clamping function to scroll plate blank
Energy.
Embodiment 3:
As different from Example 2:
The quantity of claw, positioning board slot and positioning plate hole is eight, is also able to achieve the clamping function to scroll plate blank
Energy.
Embodiment 4:
Unlike the first embodiment:
The rotation direction of first connecting rod 16 is identical with the rotation direction of second connecting rod 20, realizes to revolving body or thin-wall part
Clamping.
Embodiment 5:
As shown in fig. 7, the bottom of blank is precast with axis hole, cylindrical hole and location hole.
The invention also discloses the application methods of scroll plate fixture for milling tooling, comprising the following steps:
Step 1: after clamp fixture is mounted on milling machine, for the first time in use, using milling machine to gripping block (3) and
Claw carries out that milling is primary respectively, guarantees the circularity of gripping block 3 and claw;
Step 2: adjusting cylinder 5 makes its claw be located at the position of design requirement, and the blank of bottom after processing is completed is put
It is placed in the top of the second positioning plate 9, cooperates the axis hole of its blank bottom and the first positioning pin 8, location hole and the second positioning
Pin 26 cooperates;
Step 3: it adjusts cylinder 5 and moves down, the first positioning plate 11 and the second positioning plate 9 move down therewith, make its folder
Tight block 3 clamps blank;
Step 4: continue adjusting cylinder 5 and move down, the fixed block 24 on first horizontal plate 17 and second horizontal plate 23 divides
It is not mobile with outside inwardly, the cylindrical hole of blank bottom is clamped;
Step 5: starting milling machine carries out milling to blank, its cylinder is moved upward to home position after the completion, is removed
The blank completed the process;Blank is reinstalled, repeats step 2 to step 5.
Embodiment 6:
As shown in figure 5 and figure 7, as different from Example 4:
Only following change need to be carried out for the scroll plate of different size:
Step 1: the blank of the specification bottom structure is placed between gripping block 3 and fixed block 24, by adjusting gas
Cylinder 5 moves up, and clamps the blank of the specification bottom structure, the claw that it is not clamped, makes claw by adjusting shank of bolt
Blank with the specification bottom structure realizes the clamping of the blank of such specification bottom structure for calibrating positioning.
The utility model is suitable for the scroll plate blank of a variety of bottom structures, makes its jaw position by adjusting shank of bolt
It is adjusted, then will make claw that it is clamped blank respectively inwards or outside by link mechanism by cylinder, balance out and add
Working hour cutting force and influence with clamping force to mismachining tolerance, are not suitable for the blank of major diameter.For those skilled in the art
Member for, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from the utility model spirit or
In the case where essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the utility model by appended claims rather than on
Bright restriction is stated, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in this hair
In bright.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.